2.3GHz to 2.7GHz MIMO Wireless Broadband
RF Transceiver
Pin Description (continued)
PIN
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
NAME
RSSI
B7
B6
RXHP
RXBBQA-
RXBBQA+
RXBBIA-
RXBBIA+
VCCRXVGA
VCCRXFL
TXBBI-
TXBBI+
TXBBQ+
TXBBQ-
VCCRXMX
RXTX
RXINA-
RXINA+
EP
FUNCTION
Receiver Signal Strength Output
Receiver Gain-Control Logic Input Bit 7
Receiver and Transmitter Gain-Control Logic Input Bit 6
Receiver Baseband AC-Coupling Highpass Corner Frequency Control Logic Input. For typical WiMAX
application, connect pin to ground.
Receiver Baseband Q-Channel Differential Outputs
Receiver A Baseband I-Channel Differential Outputs
Receiver VGA Supply Voltage. Bypass with a 100nF capacitor as close as possible to the pin.
Receiver Baseband Filter Supply Voltage. Bypass with a 100nF capacitor as close as possible to the pin.
Transmitter Baseband I-Channel Differential Inputs
Transmitter Baseband Q-Channel Differential Inputs
Receiver Downconverters Supply Voltage. Bypass with a 22pF capacitor as close as possible to the
pin.
Receive/Transmit Mode Enable
Receiver A LNA Differential Input. Input is internally DC-coupled.
Exposed Paddle. Internally connected to GND. Connect to a large ground plane for optimum RF
performance and enhanced thermal dissipation. Not intended as an electrical connection point.
______________________________________________________________________________________
19
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