General Description

The TDA5101A is a single chip ASK transmitter for the frequency band 315 MHz. The IC offers a high level of integration and needs only a few external components. The device contains a fully integrated PLL synthesizer and a high efficiency power amplifier to drive a loop antenna. A special circuit design and an unique power amplifier design are used to save current consumption and therefore to save battery live. Additionally features like a power down mode, a low power detect and a divided clock output are implemented.

Features

■ fully integrated frequency synthesizer

■ VCO without external components

■ high efficiency power amplifier

■ frequency range 315 MHz

■ ASK modulation

■ low supply current (typically < 7mA)

■ voltage supply range 2.1 - 4 V

■ power down mode

■ low voltage sensor

■ low external component count

Applications

■ Keyless entry systems

■ Remote control systems

■ Alarm systems

■ Communication systems

TDA5101屬于RF/IF，射頻/中頻和 RFID > 射頻發(fā)射器。英飛凌科技股份公司制造生產(chǎn)的TDA5101射頻發(fā)射器RF 發(fā)射器用于發(fā)送射頻信號(hào)并調(diào)制該信號(hào)以承載系統(tǒng)中的數(shù)據(jù)。頻率范圍為 315 Hz 至 64 GHz，數(shù)據(jù)速率為 3 kbps 至 2 Mbps，功率輸出為 -30 dBm 至 24.7 dBm。數(shù)據(jù)接口有連接器、I2C、引腳焊盤(pán)、并行、PCB、串行、焊盤(pán)、SPI、UART 和 USB，天線連接方式有堡形、板載、PCB 和通孔。