Transcript
Multifunction Audio System Sub Rack – 3U - type 677-100 GENERAL DESCRIPTION The Multifunction Audio System type 677 is based on a standard 19", 3U card frame. The card frame is fitted with mains supply units (single or dual) and with additional inputs for 24 V dc supply. The build-in power supply simply consists of line filter, transformer and rectifier, thus all active circuits (dc regulators etc.) are distributed to the individual cards. The frame is pre-wired for 16 cards plus one communication module. The following cards and functions are available for the 677-System. Please note that the system is continuously being expanded with new cards and functions. ! ! ! ! ! ! ! ! ! !
677-140A 677-150A 677-160A 677-210A 677-210B 677-220A 677-220B 677-220M 677-230B 677-310B
AES3 Distribution Amplifier. Analogue Distribution Amplifier. Word clock & AES3 Distribution Amplifier A/D Stereo Converter. Dual A/D Stereo Converter D/A Stereo Converter Dual D/A Stereo Converter Dual Mono D/A Converter Dual Sample Rate Converter Dual A/D Stereo Converter w. Dual AES output.
All cards (except the optional communication module) are fitted with a 25-pole D-sub connector, male through which the input/output connections are obtained. Additionally the following connectors are mechanically mounted on the rear plate: 1
A RS-232 connector (9-pole D-sub connector, male). This connector is used for communication with the optional communication module.
2
A 9-pole D-sub female connector providing access to power alarm outputs as well as inputs for external dc supply.
3
Two AC mains input connectors (3-pole Euro Mains receptacles with fuse)
interstage Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
April 2002
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Sub Rack – 3U - type 677-100 TECHNICAL SPECIFICATIONS General: Supply voltage Power consumption. (Depending on configuration)
230 V AC 50-60 Hz 100 VA max.
Mechanical Dimensions: Width (inc. mounting flaps) Width (excl. mounting flaps) Width (inside = card capacity) Height Depth
482.8 mm (19 inches) 449 mm 84T 132,5 mm (3U) 300 mm
Rear View
April 2002
NTPsys reserves the right to make changes or improvements in manufacturing or design that may affect specifications.
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Sub Rack – 1U – Type 677-600 GENERAL DESCRIPTION The Multifunction Audio System type 677 is based on a standard 19", 1U card frame. The card frame is fitted with single mains supply unit and with additional inputs for 18 V ac or 24 Vdc supply. The build-in power supply simply consists of line filter, transformer and rectifier, thus all active circuits (dc regulators etc.) are distributed to the individual cards. The frame is pre-wired for 6 cards. The following cards and functions are available for the 677-System. Please note that the system is continuously being expanded with new cards and functions. ! ! ! ! ! ! ! ! ! !
677-140A 677-150A 677-160A 677-210A 677-210B 677-220A 677-220B 677-220M 677-230B 677-310B
AES3 Distribution Amplifier. Analogue Distribution Amplifier. Word clock & AES3 Distribution Amplifier A/D Stereo Converter. Dual A/D Stereo Converter D/A Stereo Converter Dual D/A Stereo Converter Dual Mono D/A Converter Dual Sample Rate Converter Dual A/D Stereo Converter w. Dual AES output.
All cards are fitted with a 25-pole D-sub connector, male through which the input/output connections are obtained. Additionally the following connectors are mechanically mounted on the rear plate: 1
A 9-pole D-sub female connector providing access to power alarm outputs as well as inputs for external ac or dc supply.
2
One AC mains input connectors (3-pole Euro Mains receptacles with fuse)
Interconnection. The cards interconnect via an internal bus panel that also distributes power. Depending on the functionality of the specific cards differential bus connections throughout the frame and/or single ended card-to-card connections are provided. Card to card connections are only provided for cards placed above/underneath each other.
TECHNICAL SPECIFICATIONS General: Supply voltage Power consumption. (Depending on configuration)
230 V AC 50-60 Hz 60 VA max.
Mechanical Dimensions:
April 2002
Width (inc. mounting flaps) Width (excl. mounting flaps) Height Depth
NTP System Engineering Company AS
482.8 mm (19 inches) 441 mm 44 mm (1U) 300 mm
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Sub Rack – 1U – Type 677-600
interstage Phistersvej 31, 2900 Hellerup, Danmark
REAR VIEW
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System AES/EBU Distribution Card type 677-140A GENERAL DESCRIPTION The 677-140A AES/EBU Distribution Card fits into the 677 Card Frames. The 677-140A contains two AES/EBU distribution amplifiers, each with one input to four outputs. Line losses are actively compensated for the input stage and the signal is relocked. The basic functions of the two channels are identical. Channel one (input 2/15) normally feeds the outputs 1 to 4. It is furthermore capable of feeding the signal to - or receiving the signal from - the frame back panel thus providing means for expanding the distribution to more than 4 outputs. The signal can be fed to either of the busses accessible on the terminal pins no. 11b/c, 12b/c, 13b/c and 14 b/c where the bus 11b/c is predefined as AES 11 sync. interconnection. The appropriate bus is selectable by means of the on board DIL-switch. The mode of operation (i.e. feeding to or receiving from back panel bus) is selected by means of the on board rotary switch (I/O CONFIG). Channel two (input 3/16) will normally. Alternatively the output 5 to 8 can be fed in parallel with the outputs 1 to 4 (selectable on the I/O CONFIG switch).
14a 14d
SW 1 0
SW 2 11bc 12bc 13bc 14bc
AES-11 Backplane
1
Sync. Input 14 AES-3 2 Input 1
15
8
AES Receiver
0
12 25
AES-3 Output 1
11 24
Output 2
10
Jum per for Input Termination Zin = 110R 8
AES-3
3
Input 2
16
AES Receiver
0
23
Output 3
9 22
Output 4
8 21
Output 5
7 20
Output 6
6 19
Jum per for Input Termination Z in = 110R
Output 7
5
8
18
Output 8
Z out = 110R 13
Chassis
interstage Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System AES/EBU Distribution Card type 677-140A
TECHNICAL SPECIFICATIONS General: Supply voltage Power consumption, @24V Minimum, (no input signals) Maximum, (all 8 outputs active, @ 110 ohms load) Load dependant consumption (power pr. active output)
15V to 30V DC
Type of Input-Output connector
25-pole male, sub-D
530 mW, (22 mA) 2W, (84 mA) 130 mW, (5.5mA)
Inputs: Input impedance, balanced floating (0,1 to 6 MHz)
110 Ohm +/- 20% or High impedance, floating, (Zin > 1 kΩ) via Jumper
Input signal level (Input accept signals with eye diagram according to AES3-1992)
0,2V to 7V peak-to-peak
Input common mode rejection
No data errors with 7V peak common mode signal from DC to 20 kHz
Outputs: Output impedance, balanced floating (0,1 to 6 MHz)
110 Ohm +/- 20%
Output signal level (Rload = 110 Ohm)
typ. 5V peak-to-peak
Output common mode component (DC to 6 MHz)
more than 30 dB below output signal
AES Input to AES Output data jitter attenuation:
April 2002
DC to 25 kHz jitter 100 kHz jitter 1 MHz jitter 10 MHz jitter
0 dB > 5 dB > 40 dB > 75 dB
NTPsys reserves the right to make changes or improvements in manufacturing or design that may affect specifications.
NTP System Engineering Company AS
Knapholm 7 DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Analogue Distribution Amplifier type 677-150A GENERAL DESCRIPTION The 677-150A Analogue Distribution Amplifier fits into the 677 Card Frames. The 677-150A is a quad, one input to one output amplifier. The input of amplifier one provides a buffered output, which may be used for feeding one or more inputs of the remaining three amplifiers. In this way the card can be configured as a distribution amplifier with one to four outputs. The amplifiers have individually isolated inputs and outputs. Isolation of the inputs is obtained by means of transformers. The input transformers are operated in current mode providing superior performance regarding distortion and frequency linearity (impulse response). Isolation of the outputs is obtained by supplying each output stage from separate isolated DC/DC converters. In this way the signal degradation normally introduced by bulky output transformers is avoided. To facilitate easy interconnection to professional and consumer equipment the amplifiers provide an adjustable gain range of 0 dB +/- 18dB in steps of 6 dB with additional +/-4 dB fine adjustment.
Gain R ange: -18dB to +18dB Adjustable in 6dB steps plus +/-4dB fine adj. Z out < 40 O hm 2 15
Input 1
+ 10k O hm
6
+ 10k O hm
-
+
4 17 10k O hm
Input 3
-
+
5 18 10k O hm
Input 4
Output 1
-
3 16
25
+
19
Input 2
12
External w iring when used for distribution
11 24
10 23
+ -
+ -
Output 3
9 22
13 + -
Output 2
Output 4
R ef.
+ Individually isolated D C /D C Converters for each output stage
April 2002
Supply
+ -
interstage Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Analogue Distribution Amplifier type 677-150A
TECHNICAL SPECIFICATIONS General: Supply voltage Power consumption, @24V Minimum, (no input signals) Maximum, (all outputs active)
15V to 30V DC
Type of Input-Output connector
25-pole male, sub-D
Inputs: Input impedance, balanced floating Input overload level Input common mode rejection ratio
10 k Ohm +/- 10 % + 24 dBu 60 dB @ 15 kHz
2.9 W, (120 mA) 3.1W, (130 mA)
Outputs: Output impedance, balanced floating Output overload level Distortion @ f = 40 Hz + 22 dBu Distortion @ f > 100 Hz + 22 dBu Output noise (rms 23 kHz BW/ CCIR468 qp): @ -18 dB Gain @ -12 dB Gain @ -6 dB Gain @ 0 dB Gain @ 6 dB Gain @ 12 dB Gain @ 18 dB Gain
< 40 Ohm > +23 dBu @ Rl=600 Ohm < 0.02 % < 0.01 % -99 dBu/ -90 dBqp -98 dBu/ -89 dBqp -97 dBu/ -88 dBqp -96 dBu/ -87 dBqp -95 dBu/ -85 dBqp -90 dBu/ -80 dBqp -86 dBu/ -76 dBqp
Gain:
0 dB +/-18 dB Selectable in steps of 6 dB
Switch position: Gain:
0
1
2
3
4
5
6
7/8/9
-18 dB
-12 dB
-6 dB
0 dB
+6 dB
+12 dB
+18 dB
NA
NTPsys reserves the right to make changes or improvements in manufacturing or design that may affect specifications.
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System AES/Word Clock Distribution Amp. Type 677-160A GENERAL DESCRIPTION The 677-160A AES/Word-clock Distribution Amplifier fits into the 677 Card Frames. The 677-160A provides two separate circuits, a one input to four AES outputs distribution amplifier and a one input to eight Word-Clock outputs distribution amplifier. AES DISTRIBUTION AMPLIFIER: The AES input (pin 2/15) is normally distributed to the AES outputs 1 to 4. It is furthermore capable of feeding the signal to - or receiving the signal from - the frame back panel thus providing means for expanding the distribution to more than 4 outputs. The signal can be fed to either of the busses accessible on the terminal pins no. 11b/c, 12b/c, 13b/c and 14 b/c where the bus 11b/c is predefined as AES 11 sync. interconnection. The appropriate bus is selectable by means of the on board DIL-switch. The mode of operation (i.e. feeding to or receiving from back panel bus) is selected by means of the on board rotary switch (I/O CONFIG). WORD CLOCK DISTRIBUTION AMPLIFIER: The word-clock outputs 1-8 can either be fed directly from the word-clock input or the word-clock signal can be retrieved from either of the two AES inputs. The on board rotary switch and jumper do the source selection.
14a 14d SW 1 0
SW 2 11bc 12bc 13bc 14bc Backplane
AES-11
8
Sync. 1 14 Input
13
AES-3 2 Input 1 15
AES R eceiver
0
Jum per for Input Term ination Z in = 110R 8
AES-3 3 Input 2
WC AES R eceiver
16
0
12 25
AES-3 Output 1
11 24
Output 2
10 23
Output 3
9 22
Output 4
8 21 7 20
Jum per for Input Term ination Z in = 110R
6
8
19 5
W ord 4 C lock
C hassis
18
W ordclock 1 W ordclock 2 W ordclock 3 W ordclock 4 W ordclock 5 W ordclock 6 W ordclock 7 W ordclock 8
April 2002
interstage Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 533 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System AES/Word Clock Distribution Amp. Type 677-160A
TECHNICAL SPECIFICATIONS General: Supply voltage Power consumption, @24V Minimum, (no input signals) Maximum, (all outputs active)
15V to 30V DC 530 mW, (22 mA) 2W, (84 mA)
Type of Input-Output connector
25-pole male, sub-D
AES Section: Inputs: Input impedance, balanced floating (0,1 to 6 MHz)
110 Ohm +/- 20% or High impedance, floating, (Zi > 1 kΩ) via Jumper
Input signal level (Input accept signals with eye diagram according to AES3-1992)
0,2V to 7V peak-to-peak
Input common mode rejection
No data errors with 7V peak common mode signal from DC to 20 kHz
Outputs: Output impedance, balanced floating (0,1 to 6 MHz) Output signal level (Rload = 110 Ohm) Output common mode component (DC to 6 MHz) AES Input to AES Output data jitter attenuation: DC to 25 kHz jitter 100 kHz jitter 1 MHz jitter 10 MHz jitter
110 Ohm +/- 20% typ. 5V peak-to-peak more than 30 dB below output signal
0 dB > 5 dB > 40 dB > 75 dB
Word Clock section: Input
Unbalanced, TTL compatible
Outputs: Output level, unloaded Output impedance
5 V unsymmetrical 60-Ohm +/- 10%
NTPsys reserves the right to make changes or improvements in manufacturing or design that may affect specifications.
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 533 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System AES/Word Clock Distribution Amp. Type 677-160A
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 533 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual Stereo A/D Converter Type 677-210B GENERAL DESCRIPTION The 677-210B dual A/D Converter fits into the 677 Card Frames. There are two identical 24-bit A/D converter circuits on the 677-210B card. The card also exists in a version (677210A) containing only one Stereo Converter. Each converter has individually isolated inputs. Isolation is obtained by means of transformers. The input transformers are operated in current mode providing superior performance regarding distortion and frequency linearity (impulse response). The digital outputs conform to the AES3 specifications. The converter card must be synchronized from an external sync signal (AES11). The sync signal may be connected directly to the 25 pole sub-D connector or via the back panel bus. The C end U bits in the AES outputs are transparent to the C and U bits embedded in the sync signal.
2 15
Input 1
Stereo A/D Co nverter 3
12 25
AES-3 Output 1
S ync. C/U-bit
16
Input 2
A ES /E BU Transm itter
Sync.
4 17
Input 3
Stereo A/D Co nverter 5
11 24
AES-3 Output 2
S ync. C/U-bit
18
Input 4
A ES /E BU Transm itter
*
Sync.
13
C hassis
/ 3 2 Sync. Select Jum per
1 14
AES-11 Sync. Input
Pos.1
AES R eceiver
Pos.2 1
Pos.3 Jum per for Input Term ination Z in = 110R
Pos.4 R S485 Buffer
Row 11b
Backp anel Sync.
Row 11c
* Only one Stereo Converter fitted in single channel version type 677-210A.
April 2002
interstage Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual Stereo A/D Converter Type 677-210B TECHNICAL SPECIFICATIONS General: Supply voltage Power consumption, @24V Sample frequency Type of Input-Output connector Output specifications: Output impedance, balanced floating (0.1 to 6 MHz) Output signal level (Rload = 110R) Output common mode component (DC to 6MHz) AES sync. Input to AES Output data jitter attenuation (DC to 25kHz jitter) (100kHz jitter) (1MHz jitter) (10MHz jitter) Input specifications: Resolution Input ref level (full scale level) Input impedance Input CMRR @ 15 kHz Input frequency range relative to 1kHz Linearity 1 kHz 0 dBFS to -80 dBFS -80dBFS to -110dBFS Phase difference between 2 channels (20 Hz to 20 kHz)
: : : :
15V to 30V DC typ 3.6 W, (150 mA) 32kHz, 44.1 kHz, 48 kHz 25 pole male, sub-D
: : :
110 Ohm ± 20% typ 5V peak-to-peak >30dB below output signal
: : : :
0dB >5dB >40dB >75dB
: : : : : : : :
24 bit 18dBu (15dBu via Jumper) 10 kOhm ± 10% >60 dB 20 Hz to 20 kHz ± 0.1dB ± 0.1dB ± 1.0dB < 3°
Conversion time, digital input to analogue output (SF: 48kHz) (SF: 44.1kHz) (SF: 32kHz) Harmonic Distortion, including noise at -1 dBFS (1kHz) at - 20 dBFS (1kHz) at - 60 dBFS (1kHz) at - 1 dBFS (100Hz to 20kHz)
: : :
806µec 878µsec 1210µsec
: : : :
< 0.001% < 0.005% < 0.5% < 0.005%
Noise (input short-circuit) RMS full bandwidth Noise (input short-circuit) CCIR qpeak
: :
< -109dBFS < -97dBFS
Dynamic range (-60 dB 1 kHz, band reject f.)
:
> 109dB
Channel separation between the two stereo pairs (20 kHz)
:
> 100 dB
Data measured at 25°C amb. Temperature, FS=18dBu and balanced input.
NTPsys reserves the right to make changes or improvements in manufacturing or design that may affect specifications.
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual Stereo D/A Converter Type 677-220B GENERAL DESCRIPTION The 677-220B dual Stereo D/A Converter card fit into the 677 Card Frames. The dual Stereo D/A Converter type 677-220B converts two AES/EBU input signals to two analog stereo signals. The AES/EBU inputs can be terminated to 110 ohm by means of a jumper. The input stages in front of the AES/EBU receiver circuits allows for longer line length, typically 200 meters on a standard microphone cable. The digital input signal is routed through an AES/EBU receiver circuit to two 24-bit Stereo A/D converter circuits, and further on through analog filters to the electronically balanced line driver output circuit. Pre emphasis is automatically activated according to requirement by the C-bit of the AES/EBU signal (only for 44,1 and 48 kHz). The card also exists in a version (type 677-220A) containing only one Stereo Converter.
12 25
A ES -3 Inpu t 1
2 15
AE S /E B U R eceiver
S tereo D/A C onverter
Output 1
11 24
Output 2
Jumper for Inp ut T erm ination Z in = 110R
10
A ES -3 Inpu t 2
3 16
AE S /E B U R eceiver
S tereo D/A C onverter
23
Output 3
9 22
Output 4
* Jumper for Inp ut T erm ination Z in = 110R
13
R ef.
* Only one Stereo Converter fitted in single channel version type 677-220A.
April 2002
interstage Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual Stereo D/A Converter Type 677-220B TECHNICAL SPECIFICATIONS General: Supply Voltage Power consumption @ 24V
(R load: 2 x 100k) (R load: 2 x 300R)
Sample frequency Input / Output connector
Input specifications: Input impedance, balanced floating
: 15-30Vdc : t.b.d. : t.b.d. : 44.1kHz / 48kHz (32kHz) : 25 pole male, sub D
(0.1 to 6 MHz)
Input signal level (Input accept signal with eye pattern according to AES3-1992) Input common mode rejection
Output specifications: Resolution Output ref level Output impedance, electronically balanced Minimum load impedance (+18dBu out) Output CMR (20Hz to 20kHz) Output unsymmetrical (1kHz) Input frequency range relative to 1kHz (SF: 44k1 and 48k) Linearity 1 kHz 0dBFS to -80dBFS -80dBFS to -110dBFS Phase difference between stereo L/R pairs (20Hz to 20kHz) Conversion time, digital input to analog output (SF: 48kHz) (SF: 44.1kHz) (SF: 32kHz) Output group delay difference between any 2 AES channels Harmonic distortion, including noise 20Hz-20kHz, 0dBFS, R load 600 Ohm) Harmonic distortion, including noise 1kHz, FS 18dBu, R load 600 Ohm) 0dBFS -20dBFS -60dBFS Dynamic range (-60dBFS 1kHz, band reject f.) Channel separation between any output (20Hz - 20kHz) Output noise RMS 22 kHz Bandwidth (Non AES-audio signal) Automatic de-emphasis according to C-bit (only 44k1 and 48k SF)
: 110 Ohm ± 20% or High impedance, floating, (Zi>1k) via Jumper : 200mV to 7V peak-to-peak : No data errors with 7V peak common mode signal from DC to 20 kHz
: : : : : : : : : :
24 bit 18 dBu (15 dBu via Jumper) < 30 Ohm 300 Ohm >50 dB <-40 dB 20Hz to 20kHz ± 0.1dB ± 0.1 dB ± 1.0 dB <3°
: : : :
567µsec 617µsec 850µsec 250nsec
: <0.03% : : : : : : :
<0.008% <0.03% <3.0% >103 dB >100 dB <-120 dBFS 15/50us
Data measured at 25°°C amb. Temperature, without de-emphasis, FS=18 dBu and balanced output.
NTPsys reserves the right to make changes or improvements in manufacturing or design that may affect specifications.
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual Mono D/A Converter Type 677-220M GENERAL DESCRIPTION The 677-220M Dual Mono D/A Converter card fit into the 677 Universal Card Frames. The Dual Mono D/A Converter type 677-220M converts two AES/EBU (stereo) input signals to two analogue mono signals. The AES/EBU inputs can be terminated to 110 ohm by means of a jumper. The input stages in front of the AES/EBU receiver circuits allows for longer line length, typically 200 meters on a standard microphone cable. The digital input signal is routed through an AES/EBU receiver circuit to two 24-bit A/D converter circuits, and further on through analogue filters to the electronically balanced line driver output circuit. Pre emphasis is automatically activated according to requirement by the C-bit of the AES/EBU signal (only for 44,1 and 48 kHz). On each D/A converter it is possible to set a jumper for selecting the mute-function. There are three settings: 1. Open jumper
The D/A converter converts the incoming signal, regardless of signal validity.
2. Jumper set to ERF
The D/A converter mutes if the incoming digital audio signal is invalid.
3. Jumper set to ERF +V
The D/A converter mutes if the incoming digital audio signal is invalid or if the Validity Bit is set to invalid.
AES-3 Input 1
Mono 2 15
AES/EBU
Stereo
Receiver
D/A Converter
AES/EBU
Stereo
Receiver
D/A Converter
12 25 Output 1
Jumper for Input Termination Zin = 110R
AES-3 Input 2
Mono 3 16
23 Output 2
13
Ref.
April 2002
Jumper for Input Termination Z = 110R in
10
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual Mono D/A Converter Type 677-220M
TECHNICAL SPECIFICATIONS General: Supply Voltage Power consumption @ 24V
(R load: 2 x 100k) (R load: 2 x 300R)
Sample frequency Input / Output connector Input specifications: Input impedance, balanced floating
(0.1 to 6 Mhz)
Input signal level (Input accept signal with eye pattern according to AES3-1992) Input common mode rejection
Output specifications: Resolution Output ref level, @ Atrue@ stereo input Output impedance, electronically balanced Minimum load impedance (+18dBu out) Output CMR (20Hz to 20kHz) Output unsymmetrical (1kHz) Input frequency range relative to 1kHz (SF: 44k1 and 48k) Linearity 1kHz 0dBFS to -80dBFS -80dBFS to -110dBFS
: 15-30Vdc : t.b.d. : t.b.d. : 44.1kHz / 48kHz (32kHz) : 25 pole male, sub D : 110 Ohm ± 20% or High impedance, floating, (Zi>1k) via Jumper : 200mV to 7V peak-to-peak : No data errors with 7V peak common mode signal from DC to 20kHz
: 24 bit : 18dBu (15dBu via Jumper) : < 30 Ohm : 300 Ohm : >50 dB : <-40 dB : 20Hz to 20kHz ± 0.1dB : ± 0.1 dB : ± 1.0 dB
Conversion time, digital input to analogue output (SF: 48kHz) : 567µsec (SF: 44.1kHz) : 617µsec (SF: 32kHz) : 850µsec Output group delay difference between any 2 AES channels : 250nsec Harmonic distortion, including noise 20Hz-20kHz, 0dBFS, R load 600 Ohm) : <0.03% Harmonic distortion, including noise 1kHz, FS 18dBu, R load 600 Ohm) 0dBFS : <0.008% -20dBFS : <0.03% -60dBFS : <3.0% Dynamic range (-60dBFS 1kHz, band reject f.) : >103 dB Channel separation between any output (20Hz - 20kHz) : >100 dB Output noise RMS 22kHz Bandwidth (Non AES-audio signal) : <-120 dBFS Automatic de-emphasis according to C-bit (only 44k1 and 48k SF) : 15/50us Data measured at 25°°C amb. Temperature, without de-emphasis, FS=18 dBu and balanced output.
NTPsys reserves the right to make changes or improvements in manufacturing or design that may affect specifications.
interstage Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual Sample Rate Converter Type 677-230B GENERAL DESCRIPTION The 677-230B dual Sample Rate Converter fits into the 677 Universal Card Frames. There are two identical 20/24-bit Sample Rate converter circuits on the 677-230B card. The 677-230A card is the version with only one converter. Input sample frequencies from 9 kHz to 63 kHz are accepted and the ratio between input and output sample rate can vary from 1:2 to 2:1. The input word width is 4 to 20 bit and shorter input words are automatically zero-filled in the LSB=s. The output word with is 24 bit. The digital inputs and outputs conform to the AES3 specifications. Normally the inputs are terminated with 100 ohms. To allow for bridging multiple inputs, the input can be switched to unterminated mode. The converter card must be synchronized from an external sync signal (AES11). The output sample rate of both channels is determined by the sync. signal. The sync signal may be connected directly to the 25 pole sub-D connector or via the back plane bus. The C bit in the AES outputs may either be transparent to the C bit embedded in the sync signal or it may be predefined on the board. The mode of operation is selectable by an on-board switch. (See Technical Specifications for details) The group delay is selectable 0,7ms / 3ms. Default selection is 0,7ms. Choosing the longer 3ms delay may be advantageous if the input sample rate is variable such as by varispeed. The ability to track varying input sample clock can be affected by the ATrack: slow/fast@ switch. Factory setting is Aslow@ for obtaining maximum jitter attenuation. If problems occur at varying input sample rate, the Afast@ tracking may be selected. AES-3 Input 1
S a m p le R a te
2
Converter SRC
15
AES/EBU Transmitter
12 25
AES-3 Output 1
Sync. C/U-bit
Sync.
Jumper for Input Termination Zin = 110R AES-3 Input 2
Sample Rate Converter SRC
3 16
AES/EBU Transmitter
11 24
AES-3 Output 1
Sync. C/U-bit
Sync.
13
Chassis
Jumper for Input Termination Zin = 110R AES-11 Sync. Input
1 14
Pos.1
AES Receiver
Pos.2
Jumper for Input Termination Zin = 110R Row 11b
Pos.4
Sync. Select Jumper
RS485 Buffer
Row 11c
April 2002
Backpanel Sync.
Pos.3
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual Sample Rate Converter Type 677-230B TECHNICAL SPECIFICATIONS General: Supply voltage Power consumption, @24V Conversion Ratio Sample Clock, min./max Type of Input-Output connector
Output specifications: Output impedance, balanced floating (0.1 to 6 MHz) Output signal level (Rload = 110R) Output common mode component (DC to 6MHz) AES sync. Input to AES Output data jitter attenuation (DC to 25kHz jitter) (100kHz jitter) (1MHz jitter) (10MHz jitter) Input specifications: Input impedance, balanced floating
(0.1 to 6 MHz)
Input signal level (Input accept signal with eye pattern according to AES3-1992) Input common mode rejection Performance (Fsin/Fsout between 0.7 and 1.4): Dynamic Range (20 Hz - 20 kHz, - 60 dBFS Input) THD+N @ 1 kHz Full-Scale Input THD+N @ 10 kHz Full-Scale Input
: : : : :
15V to 30V DC typ. 0.9 W, (37 mA) 1:2 to 2:1 9 kHz / 63 kHz 25 pole male, sub-D
: : :
110 Ohm ± 20% typ 5V peak-to-peak >30dB below output signal
: : : :
0dB >5dB >40dB >75dB
:
110 Ohm ± 20% via jumper or High impedance, floating, 200mV to 7V peak-to-peak
: :
No data errors with 7V peak common mode signal from DC to 20kHz
: : :
120 dB -106 dB -100 dB
Channel Status: The switch marked AC-bit: FIX/SYNC@ may control the channel status information outputted on the digital outputs FIX-mode
:
C-bit: Professional Mode is permanent set. Stereo Mode is permanent set. Sample Rate information is in accordance with actual Sync Signal (48 kHz or 44.1 kHz) Emphasis is in accordance with Emphasis information on input signal. V and U-bit: Validity bit is transparent to the input signal ORED with the receiver Validity. User bit is not accessible (permanent A0")
SYNC-mode
:
Channel Status and User bit is transparent to the Sync input signal.
NTPsys reserves the right to make changes or improvements in manufacturing or design that may affect specifications.
interstage Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual A/D Converter Type 677-310B GENERAL DESCRIPTION The 677-310B dual A/D Converter fits into the 677 Universal Card Frames. There are two identical 24-bit A/D converter circuits on the 677-310B card. The 677-310A card is the one converter version. Each converter has individually isolated inputs. Isolation is obtained by means of transformers. The input transformers are operated in current mode providing superior performance regarding distortion and frequency linearity (impulse response). The digital outputs conform to the AES3 specifications. Each converter section provides two AES outputs. The converter card must be synchronized from an external sync signal (AES11). The sync signal may be connected directly to the 25-pole sub-D connector or via the back panel bus. The C end U bits in the AES outputs are transparent to the C and U bits embedded in the sync signal. 2 Input 1
15 Stereo A/D Converter
Input 2
3 16
Input 3
4 17
Sync. C/U-bit
AES-3 11 24 Output 2
Transmitter Sync. C/U-bit
*
9 22 Output 2 #2
Sync.
13
AES-11 Sync. Input
3 1 14 Pos.1
Output 1
10 23 Output 1 #2
AES/EBU
A/D Converter Input 4
12 25
Sync.
Stereo 5 18
AES-3
AES/EBU Transmitter
Chassis
2
AES Receiver
Pos.2 1
Pos.3 Jumper for Input Termination Zin = 110R
Backpanel Sync.
Pos.4 Sync. Select Jumper
RS485 Buffer
Row 11b Row 11c
April 2002
* Only one Stereo Converter fitted in A-version.
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
Multifunction Audio System Dual A/D Converter Type 677-310B TECHNICAL SPECIFICATIONS General: Supply voltage Power consumption, @24V
: :
15V to 30V DC typ 3.6 W, (150 mA)
Sample frequency Type of Input-Output connector
: :
32kHz, 44.1 kHz, 48 kHz 25 pole male, sub-D
: : :
110 Ohm ± 20% typ 5V peak-to-peak >30dB below output signal
: : : :
0dB >5dB >40dB >75dB
: : : : : : : :
24 bit 18dBu (15dBu via Jumper) 10 kOhm ± 10% >60 dB 20 Hz to 20 kHz ± 0.1dB ± 0.1dB ± 1.0dB < 3°
Output specifications: Output impedance, balanced floating (0.1 to 6 MHz) Output signal level (R load = 110R) Output common mode component (DC to 6MHz) AES sync. Input to AES Output data jitter attenuation (DC to 25kHz jitter) (100kHz jitter) (1MHz jitter) (10MHz jitter)
Input specifications: Resolution Input ref level (full scale level) Input impedance Input CMRR @ 15 kHz Input frequency range relative to 1kHz Linearity 1 kHz 0 dBFS to -80 dBFS -80dBFS to -110dBFS Phase difference between 2 channels (20 Hz to 20 kHz) Conversion time, digital input to analogue output (SF: 48kHz) (SF: 44.1kHz) (SF: 32kHz) Harmonic Distortion, including noise at -1 dBFS (1kHz) at - 20 dBFS (1kHz) at - 60 dBFS (1kHz) at - 1 dBFS (100Hz to 20kHz)
: : :
806µsec 878µsec 1210µsec
: : : :
< 0.001% < 0.005% < 0.5% < 0.005%
Noise (input short-circuit) RMS full bandwidth Noise (input short-circuit) CCIR q peak
: :
< -109dBFS < -97dBFS
Dynamic range (-60 dB 1 kHz, band reject f.)
:
> 109dB
Channel separation between the two stereo pairs (20 kHz)
:
> 100 dB
Data measured at 25°C amb. Temperature, FS=18dBu and balanced input.
April 2002
NTPsys reserves the right to make changes or improvements in manufacturing or design that may affect specifications.
interstage Phistersvej 31, 2900 Hellerup, Danmark
Telefon 3946 0000, fax 3946 0040 www.interstage.dk
- pro audio with a smile
NTP System Engineering Company AS
Knapholm 7 - DK-2730 Herlev - Denmark www.ntp.dk
Tel: +45 44 53 11 88 / Fax: +45 44 53 11 70
