TMS37157 具有 EEPROM 和 134.2kHz 感应器接口的无源低频接口设备 (PaLFI)

The transponder base station IC is used to drive the antenna of a TI-RFid transponder system, to send data modulated on the antenna signal, and to detect and demodulate the response of the transponder. The response of the transponder is a FSK signal (frequency shift keyed). The high or low bits are coded in two different high-frequency signals (134.2 kHz for low bits and 123 kHz for high bits, nominal). The transponder induces these signals in the antenna coil according an internally stored code. The energy the transponder needs to send out the data is stored in a charge capacitor in the transponder. The antenna field charges this capacitor in a preceding charge phase. The IC has an interface to an external microcontroller.

	TMS37157
Standby Current (uA)	0.06
Data Rate (Max) (kbps)	8
Operating Voltage (Min) (V)	2
Operating Voltage (Max) (V)	3.6
Frequency	134.2 kHz
Package Type	16QFN
Operating Temperature Range (°C)	-40 to +85

TMS37157 特性

Wide Supply Voltage Range 2 V to 3.6 V
Ultra Low Power Consumption
- Active Mode Max. 150 µA
- Power Down Mode 60 nA
121 Free Bytes User Memory
Low Frequency Halb Duplex (HDX) Interface
- HDX Transponder Communication Achieving Maximum Perfomance and Highest Noise Immunity
- Special Selective Addressing Mode Allows Anti Collision
- Up to 8 kbit/s LF Uplink Data Rate
- 126 Byte EEPROM:
  - 121 Bytes Free Available EEPROM User Memory
  - 32 Bit Unique Serial Number
  - 8 Bit Selective Address
  - High EEPROM Flexibility
  - Pages are Irreversible Lockable and Protectable
- Battery Check and Battery Charge Function
- Resonance Frequency: 134.2 kHz
- Integrated Resonance Frequency Trimming
- Downlink – Amplitude Shift Keying
- Uplink – Frequency Shift Keying

TMS37157 芯片订购指南

器件	状态	温度	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
TMS37157IRSARG4	ACTIVE	-40 to 85	1.25 \| 1ku	QFN (RSA) \| 16	3000 \| LARGE T&R

TMS37157 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
TMS37157IRSARG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TMS37157IRSARG4	TMS37157IRSARG4

TMS37157 工具和软件

培训内容	型号	软件/工具类型
PaLFI，无源低频评估套件 TMS37157	EZ430-TMS37157	开发电路板/EVM