收藏本站
TRF7970A
SLOS743K – AUGUST 2011 – REVISED APRIL 2014
www.ti.com
4.2
Terminal Functions
Table 4-1 describes the signals.
Table 4-1. Terminal Functions
TERMINAL
NAME
NO.
TYPE
(1)
DESCRIPTION
V DD_A
V IN
V DD_RF
V DD_PA
TX_OUT
V SS_PA
V SS_RX
RX_IN1
RX_IN2
V SS
BAND_GAP
ASK/OOK
IRQ
MOD
V SS_A
V DD_I/O
I/O_0
I/O_1
I/O_2
I/O_3
I/O_4
I/O_5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
OUT
SUP
OUT
INP
OUT
SUP
SUP
INP
INP
SUP
OUT
BID
OUT
INP
OUT
SUP
INP
BID
BID
BID
BID
BID
BID
Internal regulated supply (2.7 V to 3.4 V) for analog circuitry
External supply input to chip (2.7 V to 5.5 V)
Internal regulated supply (2.7 V to 5 V), normally connected to V DD_PA (pin 4)
Supply for PA; normally connected externally to V DD_RF (pin 3)
RF output (selectable output power, 100 mW or 200 mW, with V DD = 5 V)
Negative supply for PA; normally connected to circuit ground
Negative supply for RX inputs; normally connected to circuit ground
Main RX input
Auxiliary RX input
Chip substrate ground
Bandgap voltage (V BG = 1.6 V); internal analog voltage reference
Selection between ASK and OOK modulation (0 = ASK, 1 = OOK) for Direct Mode 0 or 1.
Can be configured as an output to provide the received analog signal output.
Interrupt request
External data modulation input for Direct Mode 0 or 1
Subcarrier digital data output (see registers 0x1A and 0x1B)
Negative supply for internal analog circuits; connected to GND
Supply for I/O communications (1.8 V to V IN ) level shifter. V IN should be never exceeded.
I/O pin for parallel communication
I/O pin for parallel communication
I/O pin for parallel communication
TX Enable (in Special Direct Mode)
I/O pin for parallel communication
TX Data (in Special Direct Mode)
I/O pin for parallel communication
Slave Select signal in SPI mode
I/O pin for parallel communication
Data clock output in Direct Mode 1 and Special Direct Mode
I/O pin for parallel communication
I/O_6
23
BID
MISO for serial communication (SPI)
Serial bit data output in Direct Mode 1 or subcarrier signal in Direct Mode 0
I/O_7
EN2
DATA_CLK
24
25
26
BID
INP
INP
I/O pin for parallel communication.
MOSI for serial communication (SPI)
Selection of power down mode. If EN2 is connected to V IN , then V DD_X is active during power
down mode 2 (for example, to supply the MCU).
Data Clock input for MCU communication (parallel and serial)
If EN = 1 (EN2 = don't care) the system clock for MCU is configured. Depending on the crystal
that is used, options are as follows (see register 0x09):
SYS_CLK
27
OUT
13.56-MHz crystal: Off, 3.39 MHz, 6.78 MHz, or 13.56 MHz
27.12-MHz crystal: Off, 6.78 MHz, 13.56 MHz, or 27.12 MHz
If EN = 0 and EN2 = 1, then system clock is set to 60 kHz
EN
V SS_D
28
29
INP
SUP
Chip enable input (If EN = 0, then chip is in sleep or power-down mode).
Negative supply for internal digital circuits
(1)
SUP = Supply, INP = Input, BID = Bidirectional, OUT = Output
6
Terminal Configuration and Functions
Submit Documentation Feedback
Product Folder Links: TRF7970A
Copyright ? 2011–2014, Texas Instruments Incorporated
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
TRM-418-LT TRANSCEIVER RF 418MHZ LT SERIES
TRM-900-NT RF TXRX 915MHZ NT SERIES
TRX08GVP2540 TXRX OPT SCFF 8.5GB/S 850NM
TS-320240BRNO TCH PANEL 140X104 RESISTIVE MONO
TS-TFT3.5Z TOUCH PANEL 140X1.4.0 TFT
TS3-75B3 SENSOR THERMAL MOXIE NTC 75C
TSL26711FN IC PROXIMITY DETECTOR 6-DFN
TSOP57238TT1 IC IR RCVR MODULE 38KHZ
相关代理商/技术参数
TRF7970ARHBR 功能描述:IC RFID/NFC AFE 13.56MHZ 32QFN RoHS:是 类别:RF/IF 和 RFID >> RFID IC 系列:- 其它有关文件:CR14 View All Specifications 标准包装:1 系列:- RF 型:收发器 频率:13.56MHz 特点:ISO14443-B 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SO 包装:Digi-Reel® 其它名称:497-5719-6
TRF7970ARHBT 功能描述:IC RFID/NFC AFE 13.56MHZ 32QFN RoHS:是 类别:RF/IF 和 RFID >> RFID IC 系列:- 其它有关文件:CR14 View All Specifications 标准包装:1 系列:- RF 型:收发器 频率:13.56MHz 特点:ISO14443-B 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SO 包装:Digi-Reel® 其它名称:497-5719-6
TRF7970ATB 功能描述:RFID应答器 TRF7970A Target Brd RoHS:否 制造商:Murata 存储容量:512 bit 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel
TRF79A6AA17LB000 制造商:Opnext 功能描述:XFP FORM FACTOR - Boxed Product (Development Kits)
TRF79A6AA18LB000 制造商:Opnext 功能描述:XFP FORM FACTOR - Boxed Product (Development Kits)
TRF79A6AA19LB000 制造商:Opnext 功能描述:XFP FORM FACTOR - Boxed Product (Development Kits)
TRF79A6AA20LB000 制造商:Opnext 功能描述:XFP FORM FACTOR - Boxed Product (Development Kits)
TRF79A6AA21LB000 制造商:Opnext 功能描述:XFP FORM FACTOR - Boxed Product (Development Kits)