CC2500RGPR Datasheet, PDF (16/99 Pages) Texas Instruments – Low-Cost Low-Power 2.4 GHz RF Transceiver

CC2500
Pin # Pin Name
1 SCLK
2 SO (GDO1)
3 GDO2
4 DVDD
5 DCOUPL
6 GDO0
(ATEST)
7 CSn
8 XOSC_Q1
9 AVDD
10 XOSC_Q2
11 AVDD
12 RF_P
13 RF_N
14 AVDD
15 AVDD
16 GND
17 RBIAS
18 DGUARD
19 GND
20 SI
Pin Type
Digital Input
Digital Output
Digital Output
Power (Digital)
Power (Digital)
Digital I/O
Digital Input
Analog I/O
Power (Analog)
Analog I/O
Power (Analog)
RF I/O
RF I/O
Power (Analog)
Power (Analog)
Ground (Analog)
Analog I/O
Power (Digital)
Ground (Digital)
Digital Input
Description
Serial configuration interface, clock input
Serial configuration interface, data output.
Optional general output pin when CSn is high
Digital output pin for general use:
 Test signals
 FIFO status signals
 Clear Channel Indicator
 Clock output, down-divided from XOSC
 Serial output RX data
1.8 - 3.6 V digital power supply for digital I/O’s and for the digital core
voltage regulator
1.6 - 2.0 V digital power supply output for decoupling.
NOTE: This pin is intended for use with the CC2500 only. It can not be
used to provide supply voltage to other devices.
Digital output pin for general use:
 Test signals
 FIFO status signals
 Clear Channel Indicator
 Clock output, down-divided from XOSC
 Serial output RX data
 Serial input TX data
Also used as analog test I/O for prototype/production testing
Serial configuration interface, chip select
Crystal oscillator pin 1, or external clock input
1.8 - 3.6 V analog power supply connection
Crystal oscillator pin 2
1.8 - 3.6 V analog power supply connection
Positive RF input signal to LNA in receive mode
Positive RF output signal from PA in transmit mode
Negative RF input signal to LNA in receive mode
Negative RF output signal from PA in transmit mode
1.8 - 3.6 V analog power supply connection
1.8 - 3.6 V analog power supply connection
Analog ground connection
External bias resistor for reference current
Power supply connection for digital noise isolation
Ground connection for digital noise isolation
Serial configuration interface, data input
Table 13: Pinout Overview
SWRS040C
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