CC11X1-Q1 Datasheet, PDF (18/94 Pages) Texas Instruments – Low-Power Sub-1-GHz Fractional-N UHF Device Family for Automotive

CC11x1-Q1
SWRS076B – 11-07-22-013 - APRIL 2009 – REVISED APRIL 2010
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Table 3-1. Terminal Functions
TERMINAL
NO. NAME
1 GND
2 DCOUPL2
3 GDO0 (ATEST)
4 CS
5 XOSC_Q1
6 AVDD_IF
7 XOSC_Q2
8 GND
9 AVDD_RF1
10 GND
11 AVDD_RF2
12 RF_P
13 RF_N
14 GND
15 AVDD_RF3
16 NC
17 NC
18 AVDD_CHP
19 GND
20 RBIAS
21 AVDD_GUARD
22 AGND_GUARD
23 SI
24 NC
25 SCLK
26 SO (GDO1)
27 TEST_MODE
28 GDO2
29 GND
30 DVDD1
31 DVDD2
32 DCOUPL1
TYPE
DESCRIPTION
Ground (Analog) Analog ground connection
Power Input
(Digital )
1.6-V to 2-V digital power supply input for decoupling
Digital I/O
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 and production testing.
Digital Input Serial configuration interface, chip select
Analog I/O Crystal oscillator pin 1, or external clock input
Power (Analog) 1.8-V to 3.6-V analog power supply connection
Analog I/O Crystal oscillator pin 2
Ground (Analog) Analog ground connection
Power (Analog) 1.8-V to 3.6-V analog power supply connection
Ground (Analog) Analog ground connection
Power (Analog) 1.8-V to 3.6-V analog power supply connection
RF I/O
Positive RF input signal to LNA in receive mode. Positive RF output signal from PA in
transmit mode
RF I/O
Negative RF input signal to LNA in receive mode. Negative RF output signal from PA in
transmit mode
Ground (Analog) Analog ground connection
Power (Analog) 1.8-V to 3.6-V analog power supply connection
Not connected
Not connected
Power (Analog) 1.8-V to 3.6-V analog power supply connection
Ground (Analog) Analog ground connection
Analog I/O External precision bias resistor for reference current
Power (Digital) Power supply connection for digital noise isolation
Ground (Digital) Ground connection for digital noise isolation
Digital Input Serial configuration interface, data input
Not connected
Digital Input Serial configuration interface, clock input
Digital Output Serial configuration interface, data output. Optional general output pin when CS is high.
Digital Input GND enables and NC disables on-chip data scrambling. Internal pullup resistor.
Digital Output
Digital output pin for general use:
• Test signals
• FIFO status signals
• Clear channel indicator
• Clock output, down-divided from XOSC
• Serial output RX data
Ground (Analog) Analog ground connection
Power (Digital) 1.8-V to 3.6-V digital power supply for digital I/Os and for digital core voltage regulator
Output regulator
digital core
1.6-V to 1.8-V digital power supply output for digital core / decoupling.
NOTE: This pin is intended to supply only the CC11x1-Q1 chip. It cannot be used to provide
supply voltage to other devices.
18
Detailed Description
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