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5GHz Receiver
Pin Description
PIN
1, 2, 5, 6, 9,
10, 12, 13,
16, 66, 67
3, 8, 11, 14,
19, 22,
35–38, 54,
56–59, 61–65,
68
4, 7, 15, 18
17
20
21
23
24
25
26
27
28
29
30
31
32
33
34
39
40
41
42
43
44
45
46
47
48
49
50
51
52
NAME
V CC
N.C.
GND
V CC_UCX
TXRF-
TXRF+
V CC_LNA
RXRF-
RXRF+
V CC_MXR
V CC_BB2
TXBBI+
TXBBI-
TXBBQ+
TXBBQ-
CS
SCLK
DIN
RXBBI+
RXBBI-
RXBBQ+
RXBBQ-
RSSI
V CC_VCO
BYP_VCO
GND_VCO
CPOUT+
CPOUT-
V CC_DIG
DOUT
CLKOUT
V CC_XTAL
FUNCTION
Supply Voltage
No Connection
Ground
Transmitter Upconverter Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Transmitter Differential Outputs. These pins are in open-collector configuration. They hould be
biased at supply voltage with differential impedance terminated at 300 W .
Receiver LNA Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Receiver LNA Differential Inputs. Inputs are DC-coupled and biased internally at 1.2V.
Receiver Downconverter Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Receiver Baseband Supply Voltage 2. Bypass with a capacitor as close as possible to the pin.
Transmitter Baseband I-Channel Differential Inputs
Transmitter Baseband Q-Channel Differential Inputs
Chip-Select Logic Input of 4-Wire Serial Interface
Serial-Clock Logic Input of 4-Wire Serial Interface
Data Logic Input of 4-Wire Serial Interface
Receiver Baseband I-Channel Differential Outputs
Receiver Baseband Q-Channel Differential Outputs
Receiver Signal Strength Indicator Output
VCO Supply Voltage. Bypass with a capacitor as close as possible to the pin.
On-Chip VCO Regulator Output Bypass. Bypass with an external 1 F F capacitor to GND_VCO
with minimum PCB trace. Do not connect other circuitry to this pin.
VCO Ground
Differential Charge-Pump Outputs. Connect the frequency synthesizer’s loop filter between
CPOUT+ and CPOUT- (see the Typical Operating Circuit ).
Digital Block Supply Voltage. Bypass with a capacitor as close as possible to the pin.
Data Logic Output of 4-Wire Serial Interface
Reference Clock Buffer Output
Crystal Oscillator Supply Voltage. Bypass with a capacitor as close as possible to the pin.
16
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