TDA5250RF/IF射頻/中頻RFID的射頻收發(fā)器IC規(guī)格書PDF中文資料

TDA5250屬于RF/IF射頻/中頻RFID的射頻收發(fā)器IC。由英飛凌科技股份公司制造生產(chǎn)的TDA5250射頻收發(fā)器 IC射頻收發(fā)器 IC 是將發(fā)射器和接收器集成于單個(gè)封裝的半導(dǎo)體器件。收發(fā)器適用于各種射頻系列產(chǎn)品或標(biāo)準(zhǔn)，例如 AISG、藍(lán)牙、ISM、VHF、Wi-Fi、蜂窩、雷達(dá)、802.15.4 和 Z-Wave。此產(chǎn)品可根據(jù)調(diào)制類型和特定協(xié)議版本進(jìn)一步分類。部分 IC 包含內(nèi)置微控制器。

General Description

The IC is a low power consumption single chip FSK/ASK Transceiver for half duplex low datarate communication in the 868-870MHz band. The IC offers a very high level of integration and needs only a few external components. It contains a highly efficient power amplifier, a low noise amplifier (LNA) with AGC, a double balanced mixer, a complex direct conversion stage, I/Q limiters with RSSI generation, an FSK demodulator, a fully integrated VCO and PLL synthesizer, a tuneable crystal oscillator, an onboard data filter, a data comparator (slicer), positive and negative peak detectors, a data rate detection circuit and a 2/3-wire bus interface. Additionally there is a power down feature to save battery power.

Features

■ Low supply current (Is = 9mA typ. receive, Is = 12mA typ. transmit mode)

■ Supply voltage range 2.1 - 5.5V

■ Power down mode with very low supply current consumption

■ FSK and ASK modulation and demodulation capability

■ Fully integrated VCO and PLL synthesizer and loop filter on-chip with on chip crystal oscillator tuning

■ I2C/3-wire μController Interface

■ On-chip low pass channel select filter and data filter with tuneable bandwidth

■ Data slicer with self-adjusting threshold and 2 peak detectors

■ FSK sensitivity <-109dBm, ASK sensitivity < –109dBm

■ Transmit power up to +13dBm

■ Datarates up to 64kBit/s Manchester encoded

■ Self-polling logic with ultra fast data rate detection

Application

■ Low Bitrate Communication Systems

■ Keyless Entry Systems

■ Remote Control Systems

■ Alarm Systems

■ Telemetry Systems

■ Electronic Metering

■ Home Automation Systems