TDA5221 Просмотр технического описания (PDF) - Infineon Technologies

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TDA5221

ASK/FSK Single Conversion Receiver

Infineon Technologies 

TDA 5221

preliminary

Product Info

Product Info

General Description

The IC is a very low power consump- Package

tion single chip FSK/ASK Superhet-

erodyne Receiver (SHR) for the

frequency band 300 to 340 MHz. The

IC offers a high level of integration and

needs only a few external compo-

nents. The device contains a low noise

amplifier (LNA), a double balanced

mixer, a fully integrated VCO, a PLL

synthesiser, a crystal oscillator, a lim-

iter with RSSI generator, a PLL FSK

demodulator, a data filter, a data com-

parator (slicer) and a peak detector.

Additionally there is a power down fea-

ture to save battery life.

Features

s Low supply current (Is = 6.4 mA

typ. in FSK mode, Is = 5.6 mA typ.

in ASK mode)

s Supply voltage range 5V ±10%

s Selectable frequency ranges 300-

320 MHz and 300-340 MHz

s Limiter with RSSI generation,

operating at 10.7MHz

s Power down mode with very low

supply current (50nA typ.)

s FSK and ASK demodulation capa-

bility

s Fully integrated VCO and PLL

Synthesiser

s ASK sensitivity better than

-110 dBm over specified tempera-

ture range (- 40 to +105°C)

s Selectable reference frequency

s 2nd order low pass data filter with

external capacitors

s Data slicer with self-adjusting

threshold

s FSK sensitivity better than

-102 dBm over specified tempera-

ture range (- 40 to +105°C)

Applications s Keyless Entry Systems

s Remote Control Systems

Ordering Information

s Alarm Systems

s Low Bitrate Communication

Systems

Type

TDA 5221

samples available

Ordering Code

Q67037-A1147

Package

P-TSSOP-28-1

Wireless Components

Product Info

Target Specification, October 2001

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