Transcript
COM-4102 2.4 GHz TRANSCEIVER 25 dBm Power / 3.5 dB Noise Figure
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Transmit / Receive module for half-duplex communications. Output power Psat = 25 dBm, P1dB = TBD Noise figure: NF = 3.5 dB Receive frequency range: 2400-2484 MHz Transmit frequency range: 2400-2484 MHz 25 ns Tx/Rx switch Single 5V supply Connectorized 3”x 3” module for ease of prototyping. SMA connectors.
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Key Features
For the latest data sheet, please refer to the ComBlock
Electrical Interface
web site: www.comblock.com/download/com4102.pdf. These specifications are subject to change without notice.
For an up-to-date list of ComBlock modules, please refer to www.comblock.com/product_list.htm .
Inputs / Outputs Module Interface
Block Diagram
TX_IN ANT RX_OUT
BPF
LNA
ANT
Transmit / Receive Switch
RX_OUT LNA
TX_RXN
Power Interface TX_IN
LPF
Power Amplifier 02003601.dsf
TX_RXN
Definition RF transmitter input signal. SMA connector. Antenna port. SMA connector. RF receiver output signal. SMA connector. Switch control: 0 for receive, 1 for transmit. LVTTL. 4.75 – 5.25VDC. Terminal block. Power consumption is 550mA typ while transmitting, 200 mA while receiving.
Absolute Maximum Ratings TX_IN input ANT input DC voltage
+10 dBm +15 dBm +16V / -400VDC
MSS • 18221 Flower Hill Way #A • Gaithersburg, Maryland 20879 • U.S.A. Telephone: (240) 631-1111 Facsimile: (240) 631-1676 www.ComBlock.com © MSS 2000-2003 Issued 3/31/2003
Performances
Transmitter
Receiver
Output power at antenna port (saturation): 25 dBm typ. Output compression: see measurement below
Noise Figure: 3.5 dB typ. Gain: 19 dB Gain flatness: +/- 1 dB over range [2.4-2.5GHz]
P OW ER A MP LIFIE R OUTPUT P OW ER ( 2.45 GHz ) 26
24
LNA OUTP UT P OW E R (2.45 GHz) OUTP UT P OW E R LE V E L (dB m )
15
5
0
-5
-10
20
18
16
14
-15 12 -20 -20
-35
-30
-25 -20 -15 -10 INP UT P OW E R LE V E L (dB m )
-5
0
14.5 dB
-1.2 dB
ANT
-2
Transmit / Receive Switch -0.8 dB
14.5 dB
Receiver bandpass filter
A ceramic filter is placed between the two LNA amplifiers. The frequency response is plotted below:
-4
RX_OUT LNA
-0.7 dB
-14 -12 -10 -8 -6 INP UT P OW E R LE V E L (dB m )
0
Transmitter gain & level
BPF
LNA
-16
Gain flatness: +/- 0.3 dB over range [2.4-2.5GHz]
Receiver gain Transmit / Receive Switch
-18
-25 -40
ANT
22
OUTP UT P OW E R LE V E L (dB m )
10
+27.7 dBm
TX_IN
-0.5 dB
+28.5 dBm
+19 dB
+17 dB
+29 dBm
+12 dBm
-7 dBm
The gain & level diagram above assumes a 2 dB output backoff at the power amplifier as a tradeoff between linear operations (to keep the modulation sidelobes reasonably low) and maximum output power.
Tx/Rx Switch Switch time: 25 ns.
Harmonics rejection An LC filter is placed after the power amplifier to reject the second and third harmonics. The frequency response is as follows:
2
Output Connector Jx 12-pin (2 rows x 6) 2mm male connector. B1
A1
GND TX_RXN_OUT
GND
A6
B6
I/O Compatibility List
5VDC Power Terminal Block, 90 deg Mounting hole (0.160",2.840")
corner (3.000", 3.000") Mounting hole (2.840", 2.840")
+5VDC
GND
J9
ComBlock Ordering Information
Mechanical Interface
Output COM-3001 Dual-band 915 MHz / 2.4 GHz receiver
Maximum 2nd harmonics at Pout = 25 dBm: TBD dBm. Maximum 3rd harmonics at Pout = 25 dBm: TBD dBm.
(not an exhaustive list) Input COM-4001 Dual-band 915 MHz / 2.4 GHz modulator
COM-4102
2.4 GHz TRANSCEIVER, 25 dBm power, 3.5 dB noise figure
PCB center pin (2.720",1.740")
J7
J8 TX_IN
RX_OUT
J4
B1 A1
J2 ANT
Antenna port SMA female, 90deg
Corner(0.000", 0.000") Mounting hole diameter: 0.125" A1 pin height: 0.039" Maximum height 0.500"
A1 pin (2.900", 0.360") Output A 2 rows x 6 pin male, 90 deg
B6 A6
B6 A6
J3
Mounting hole (0.160",0.160")
Top view
A1 pin (0.100", 0.360") Input 2 rows x 6 pin female, 90 deg
Receiver output port SMA female, 90deg
MSS • 18221 Flower Hill Way #A • Gaithersburg, Maryland 20879 • U.S.A. Telephone: (240) 631-1111 Facsimile: (240) 631-1676 E-mail:
[email protected]
B1 A1
PCB center pin (0.280",1.740") Input signal I SMA male, 90deg
Mounting hole (2.840", 0.160")
PCB center pin (TBD",TBD")
Pinout Input Connector Jx 12-pin (2 rows x 6) 2mm female connector. A1
B1 GND TX_RXN_IN
GND
A6
B6
3
