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T5760

UHF ASK/FSK Receiver

Atmel Corporation 

UHF ASK/FSK Receiver

T5760 / T5761

Description

The T5760/T5761 is a multi-chip PLL receiver device

supplied in an SO20 package. It has been especially de-

veloped for the demands of RF low-cost data transmission

systems with data rates from 1 kBaud to 10 kBaud in

Manchester or Bi-phase code. The receiver is well suited

to operate with the Atmel Wireless & Microcontrollers’

PLL RF transmitter T5750. Its main applications are in

the areas of telemetering, security technology and key-

less-entry systems. It can be used in the frequency

receiving range of f0 = 868 to 870 MHz or f0 = 902 to

928 MHz for ASK or FSK data transmission. All the

statements made below refer to 868.3 MHz and

915.0 MHz applications.

Features

D Fully integrated LC-VCO and PLL loop filter

D Very high sensitivity with power matched LNA

D 30 dB image rejection

D High system IIP3 (–16 dBm), system 1-dB compres-

sion point (–25 dBm)

D High large-signal capability at GSM band (blocking

–30 dBm @ + 20 MHz, IIP3 = –12 dBm @ + 20 MHz)

D 5 V to 20 V automotive compatible data interface

D Data clock available for Manchester- and Bi-phase-

coded signals

D Programmable digital noise suppresion

D Receiving bandwidth BIF = 600 kHz for low cost

90-ppm crystals

D Low power consumption due to configurable polling

D Temperature range –40°C to 105°C

D ESD protection 2 kV HBM, 200 V MM

D Communication to mC possible via a single

bi-directional data line

D Low-cost solution due to high integration level with

minimum external circuitry requirements

System Block Diagram

UHF ASK/FSK

Remote control transmitter

T5750

XTO

PLL

VCO

Antenna

T5760/

T5761

UHF ASK/FSK

Remote control receiver

Demod.

Control

1...5

mC

Antenna

IF Amp

PLL

XTO

Power

amp.

LNA

VCO

Ordering Information

Extended Type Number

T5760-TG

T5760-TGQ

T5761-TG

T5761-TGQ

Figure 1. System block diagram

Package

SO20

SO20

SO20

SO20

Remarks

Tube, for 868 MHz ISM band

Taped and reeled, for 868 MHz ISM band

Tube, for 915 MHz ISM band

Taped and reeled, for 915 MHz ISM band

Rev. A2, 19-Oct-00

1 (32)

Preliminary Information

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