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CC2550-RTY1 数据表(PDF) 9 Page - Texas Instruments

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部件名 CC2550-RTY1
功能描述  Single Chip Low Cost Low Power RF Transmitter
PDF  55 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

CC2550-RTY1 数据表(HTML) 9 Page - Texas Instruments

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CC2550
PRELIMINARY Data Sheet (Rev.1.2)
SWRS039A
Page 9 of 54
Pin #
Pin name
Pin type
Description
1
SCLK
Digital Input
Serial configuration interface, clock input
2
SO (GDO1)
Digital Output
Serial configuration interface, data output.
Optional general output pin when CSn is high
3
DVDD
Power (Digital)
1.8 - 3.6 V digital power supply for digital I/O’s and for the digital core
voltage regulator
4
DCOUPL
Power (Digital)
1.6 - 2.0 V digital power supply output for decoupling.
NOTE: This pin is intended for use with the
CC2550 only. It can not be
used to provide supply voltage to other devices.
5
XOSC_Q1
Analog I/O
Crystal oscillator pin 1, or external clock input
6
AVDD
Power (Analog)
1.8 - 3.6 V analog power supply connection
7
XOSC_Q2
Analog I/O
Crystal oscillator pin 2
8
GDO0
(ATEST)
Digital I/O
Digital output pin for general use:
• Test signals
• FIFO status signals
• Clock output, down-divided from XOSC
• Serial input TX data
Also used as analog test I/O for prototype/production testing
9
CSn
Digital Input
Serial configuration interface, chip select
10
RF_P
RF Output
Positive RF output signal from PA
11
RF_N
RF Output
Negative RF output signal from PA
12
AVDD
Power (Analog)
1.8 - 3.6 V analog power supply connection
13
AVDD
Power (Analog)
1.8 - 3.6 V analog power supply connection
14
RBIAS
Analog I/O
External bias resistor for reference current
15
DGUARD
Power (Digital)
Power supply connection for digital noise isolation
16
SI
Digital Input
Serial configuration interface, data input
Table 11: Pinout overview
6
Circuit Description
BIAS
XOSC_Q1 XOSC_Q2
XOSC
FREQ
SYNTH
RADIO CONTROL
RF_P
RF_N
CSn
SI
SO (GDO1)
SCLK
GDO0 (ATEST)
RBIAS
PA
Figure 2:
CC2550 simplified block diagram



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