Transcript
BH7862FS Multimedia ICs
High-performance 6-channel video driver IC for progressive DVD BH7862FS BH7862FS is a 6-channel video driver IC developed for progressive DVD player/recorder. Special filters adjusted to each band of various video signals are incorporated into a single chip. Extended definition, size reduction, and high cost performance can be achieved in DVD players.
!Application DVD players, DVD recorders
!Features 1) Each high-performance filter, 6dB amplifier, and 75Ω driver for DVD are incorporated into a single chip. 2) Driver 6ch (Y, C, MIX, and PY, Pb, Pr for progressive) 3) Group delay difference between chroma signal and luminance signal is a small number of nsec. 4) Drive 2 lines of each signal 5) Operating by 5V single power supply 6) Built-in mute circuit
!Absolute maximum ratings (Ta = 25°C) Parameter Impressed voltage Power dissipation
Symbol
Limits
Unit
VCC max
6.0
V
Pd
0.95∗
W
Operating temperature range
Topr
−10~+70
°C
Storage temperature range
Tstg
−55~+150
°C
∗ Reduced by −7.6mW for each increase in Ta of 1°C over 25°C. PCB (70mm×70mm, t=1.6mm) glass epoxy mounting.
!Recommended operating conditions (Ta = 25°C) Parameter Power supply voltage
Symbol
Min.
Typ.
Max.
Unit
VCC
4.5
−
5.5
V
Radiation resistance is not included in the design.
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BH7862FS Multimedia ICs !Block diagram
CTRAP
1
32 COUT 6dB
MUTE1
2
CIN
3
75Ω
MUTE1
TEST
1.5-6M BPF
6dB
75Ω
31 TEST 30 MIXOUT
20k
GND
4
YIN
5
VCC
6
29 MIXFB 6M LPF
28 GND 27 YTRAP
CLAMP
GND
7
PYIN
8
GND
9
26 GND
CLAMP 12M LPF
6dB
75Ω
25 YOUT 24 YFB 23 GND
PYTRAP 10
VCC 11
6dB
75Ω
6M LPF
PbIN 12
22 PYOUT 21 PYFB
20k
20 GND
GND 13 6M LPF
PrIN 14
6dB
75Ω
19 PbOUT
20k
MUTE2 15
PrTRAP 16
18 N.C.
MUTE2
6dB
75Ω
17 PrOUT
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BH7862FS Multimedia ICs !Pin descriptions and Input / output circuits Pin No.
Pin name
3 12 14
CIN PbIN PrIN
5 8
YIN PYIN
32
COUT
Input/output equivalent circuit
Pin description
Signal input terminal.
20k
Input terminal for chroma signal and color-difference signal. Bias type input. The input impedance is 20kΩ.
Signal input terminal. Input terminal for luminance signal. Di clamp input.
Signal output terminal. Output terminal for chroma signal.
29 30
MIXFB MIXOUT
24 25
YFB YOUT
Signal output terminal. Output terminal for Y/C MIX signal.
Signal output terminal. Output terminal for luminance signal (interlaced type).
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BH7862FS Multimedia ICs Pin No.
Pin name
21 22
PYFB PYOUT
17 19
PrOUT PbOUT
1 27 10 16
CTPAP YTRAP PYTRAP PrTRAP
Input/output equivalent circuit
Pin description
Signal output terminal. Output terminal for luminance signal (progressive type).
Signal output terminal. Output terminal for color-difference signal.
Terminal for LC resonance.
Power supply voltage. 6 11
VCC
4 7 9 13 20 23 26 28
GND
2
MUTE1
VCC is separated into 6 pin and 11 pin. That is to say, C, MIX and Y are partitioned by 6 pin and PY, Pb and Pr by 11 pin. They and not connected internally. Connect them externally when using.
Grounding terminal.
Mute control terminal. C, MIX and Y are muted simultaneously by setting MUTE to "L".
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BH7862FS Multimedia ICs Pin No.
Pin name
12
MUTE2
31
TEST
Input/output equivalent circuit
Pin description
Mute control terminal. PY, Pb and PR are muted simultaneously by setting MUTE to "L".
Test terminal. Usually, short-circuit this terminal to GND when using it. 18
N.C.
−
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BH7862FS Multimedia ICs !Electrical characteristics (unless otherwise noted, Ta=25°C, VCC=5.0V) (∗The standard values (Typical values) below are design value for your reference.) Symbol
Min.
Typ.
Max.
Unit
Circuit current 1
6CH ACTIVE
ICC1
−
90
110
mA
No signal MUTE : OFF
Circuit current 2
MUTE
ICC2
−
17
25
mA
No signal MUTE : ON
VOM
2.6
3.0
−
VPP
CIN : f=3.58MHz, YIN, PYIN, PbIN, PrIN : f=1MHz Output tertiary distortion : −30dB
Parameter
Maximum output level Voltage gain
Conditions
GVC
5.0
6.0
7.0
dB
CIN : f=3.58MHz, 1VPP
MIX(C)
GVMIXC
5.0
6.0
7.0
dB
CIN : f=3.58MHz, 1VPP
MIX(Y)
C
∗1
GVMIXY
5.0
6.0
7.0
dB
YIN : f=1MHz, 1VPP
Y
GVY
5.0
6.0
7.0
dB
YIN : f=1MHz, 1VPP
PY
GVPY
5.0
6.0
7.0
dB
PYIN : f=1MHz, 1VPP
Pb
GVPb
5.0
6.0
7.0
dB
PbIN : f=1MHz, 1VPP
Pr
GVPr
5.0
6.0
7.0
dB
PrIN : f=1MHz, 1VPP
GFC
−2.0
0
2.0
dB
CIN : f=1.5/3.58MHz, 6/3.58MHz, 1VPP
MIX1
GFMIX1
−2.0
0
2.0
dB
CIN : f=1.5/3.58MHz, 6/3.58MHz, 1VPP
MIX2
GFMIX2
−2.0
0
2.0
dB
YIN : f=6/1MHz, 1VPP
Y
GFY
−2.0
0
2.0
dB
YIN : f=6/1MHz, 1VPP
PY
GFPY
−2.0
0
2.0
dB
PYIN : f=12/1MHz, 1VPP
Pb
GFPb
−2.0
0
2.0
dB
PbIN : f=6/1MHz, 1VPP
Pr
GFPr
−2.0
0
2.0
dB
PrIN : f=6/1MHz, 1VPP
MUTE attenuation
MT
−
−50
−
dB
CIN : f=3.58MHz, 1VPP YIN, PYIN, PbIN, PrIN : f=1MHz, 1VPP
Input impedance
ZIN
16
20
24
kΩ
CIN, PbIN, PrIN input terminal
VT1HH
4.0
−
VCC
V
MUTE OFF
VT1HL
GND
−
1.0
V
MUTE ON
GFCATT
−
−40
−
dB
CIN : f=27/3.58MHz, 1VPP
MIX1
GFMIX1ATT
−
−40
−
dB
CIN : f=27/3.58MHz, 1VPP
MIX2
Frequency characteristics 1
C
MUTE holding voltage Frequency characteristics 2
C
∗2
GFMIX2ATT
−
−40
−
dB
YIN : f=27/1MHz, 1VPP
Y
GFYATT
−
−40
−
dB
YIN : f=27/1MHz, 1VPP
PY
GFPYATT
−
−40
−
dB
PYIN : f=54/1MHz, 1VPP
Pb
GFPbATT
−
−20
−
dB
PbIN : f=27/1MHz, 1VPP
Pr
GFPrATT
−
−20
−
dB
PrIN : f=27/1MHz, 1VPP
∆GD1
−
5.0
−
ns
YIN : f=1MHz, VIN=1VPP CIN : f=3.58MHz, VIN=1VPP GD difference between Y and C
∆GD2
−
5.0
−
ns
PYIN : f=1MHz, VIN=1VPP PbIN(PrIN) : f=1MHz, VIN=1VPP GD difference between PY and Pb (Pr)
Differential gain
DG
−
1.0
−
%
1 VPP standard staircase signal
Differential phase
DP
−
0.5
−
deg
1 VPP standard staircase signal
Group delay characteristics Y⇔C
PY⇔Pb(Pr)
Crosstalk between channels C⇔Y Pb(Pr)⇔PY Pb⇔Pr C/N
CT1
−
−50
−
dB
YIN : f=1MHz, 1VPP CIN : f=3.58MHz, 1VPP
CT2
−
−60
−
dB
PYIN : f=1MHz, 1VPP Pb(Pr) : f=1MHz, 1VPP
CT3
−
−60
−
dB
Pb(Pr) : f=1MHz, 1VPP
VN
−
−75
−
dB
100% white video signal
∗1 Add the sine wave of "f=1MHz (C : f=3.58MHz)" to the input. VIN and adjust the input level so that the tertiary distortion of output can be -30dB. Then, the output voltage shall be a maximum output level VOM (VPP). ∗2 Measure the input voltage VIN50 (V) and input open circuit voltage VIN (V) when 50µA has applied to the input CIN, PbIN and PrIN. Then, the input impedance ZIN is as follows : ZIN=|VIN50−VIN| / 50µ [kΩ]
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BH7862FS Multimedia ICs !Measurement circuit 75 75 0.68µ
COUT1
75
1
32
51p
6dB
0.1µ
75Ω
75
COUT2
75
2
MUTE1
MUTE1
TEST
31 75
0.1µ 1.5-6M BPF
3
CIN
6dB
75Ω
100µ
75
22µ
75
30
20k
75
4
COUT3
29
75
MIXOUT1
75
MIXOUT2
1µ 6M LPF
5
YIN
28
75 0.68µ
6 100µ
27
0.1µ
51p
CLAMP 75
7 1µ
12M LPF
8 PY/CYIN
26
CLAMP
6dB
75Ω
100µ
75
22µ
75
YOUT1
75
YOUT2
75
YOUT3
75
PY/CYOUT1
75
PY/CYOUT2
25
75
9
75
24
0.39µ
10
23
22p
11 100µ
6dB
75
47µ
75
22µ
75
6M LPF
21
20k
13
75
20
47µ
330µ
6M LPF
14 Pr/CrIN
100µ
22
0.1µ
12 Pb/CbIN
75Ω
6dB
75Ω
15
Pb/CbOUT1
75
Pb/CbOUT2
75
Pr/CrOUT1
75
Pr/CrOUT2
19
20k
75
75 75
18
MUTE2
MUTE2 330µ
16
6dB
75Ω
75
17 75
Fig.1
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BH7862FS Multimedia ICs !Application example 75 COUT1 0.68µ
75
1
32
51p
6dB
COUT2
0.1µ
75Ω
75
2
MUTE1
MUTE1
TEST
31
0.1µ 1.5-6M BPF
3
CIN
6dB
75Ω
COUT3 100µ
75
22µ
75
30 MIXOUT1
20k
75
4
29
MIXOUT2 1µ 6M LPF
5
YIN
28
75 0.68µ
6 100µ
27
0.1µ
51p
CLAMP 75
7 1µ
YOUT1
12M LPF
8 PY/CYIN
26
CLAMP
6dB
75Ω
100µ
75
22µ
75
25 YOUT2
75
9
24 YOUT3
0.39µ
10
23
22p
11 100µ
6dB
75
100µ
75
22µ
75
22 PY/CYOUT1
0.1µ 6M LPF
12 Pb/CbIN
75Ω
47µ
21 PY/CYOUT2
20k 75
13
20 Pb/CbOUT1
47µ
14 Pr/CrIN
330µ
6M LPF
6dB
75Ω
75
19 Pb/CbOUT2
20k
75
15
18
MUTE2
MUTE2 330µ
16
6dB
75Ω
75
17 Pr/CrOUT1 75 Pr/CrOUT2
Fig.2
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BH7862FS Multimedia ICs !Operation notes (1) Output terminal load resistance can be driven in three channels in SY signal and in two channels in any other signals. Use it within the allowable dissipation range. (2) Minimize the common impedance of power supply line of 6 pin and 11 pin. (3) Inductor and capacitor of series resonance can be removed. Treat them with great care when removing them, because the terminal may catch noise component. Even if they are removed, attenuation in TRAP frequency are not expected so much.
!External dimensions (Units : mm)
13.6±0.2 17
1
16
1.8±0.1
0.11
7.8±0.3 5.4±0.2
0.3Min.
32
0.8
0.36±0.1
0.15±0.1 0.1
SSOP-A32
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