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ATA5760_08 Datasheet, PDF (1/41 Pages) ATMEL Corporation – UHF ASK/FSK Receiver | |||
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Features
⢠Two Different IF Receiving Bandwidth Versions Are Available
(BIF = 300 kHz or 600 kHz)
⢠Frequency Receiving Range of
f0 = 868 MHz to 870 MHz or f0 = 902 MHz to 928 MHz
⢠30 dB Image Rejection
⢠Receiving Bandwidth BIF = 600 kHz for Low Cost 90-ppm Crystals and BIF = 300 kHz for
55 ppm Crystals
⢠Fully Integrated LC-VCO and PLL Loop Filter
⢠Very High Sensitivity with Power Matched LNA
⢠High System IIP3 (â16 dBm), System 1-dB Compression Point (â25 dBm)
⢠High Large-signal Capability at GSM Band
(Blocking â30 dBm at +20 MHz, IIP3 = â12 dBm at +20 MHz)
⢠5V to 20V Automotive Compatible Data Interface
⢠Data Clock Available for Manchester- and Bi-phase-coded Signals
⢠Programmable Digital Noise Suppression
⢠Low Power Consumption Due to Configurable Polling
⢠Temperature Range â40°C to +105°C
⢠ESD Protection 2 kV HBM, All Pins
⢠Communication to Microcontroller Possible Via a Single Bi-directional Data Line
⢠Low-cost Solution Due to High Integration Level with Minimum External Circuitry
Requirements
UHF ASK/FSK
Receiver
ATA5760
ATA5761
1. Description
The ATA5760/ATA5761 is a multi-chip PLL receiver device supplied in an SO20 pack-
age. It has been especially developed 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 Atmelâs PLL RF trans-
mitter T5750. Its main applications are in the areas of telemetering, security
technology and keyless-entry systems. It can be used in the frequency receiving
range of f0 = 868 MHz to 870 MHz or f0 = 902 MHz to 928 MHz for ASK or FSK data
transmission. All the statements made below refer to 868.3 MHz and 915.0 MHz
applications.
Figure 1-1. System Block Diagram
UHF ASK/FSK
Remote control transmitter
T5750
UHF ASK/FSK
Remote control receiver
ATA5760/
ATA5761 Demod.
Control
XTO
PLL
VCO
Antenna Antenna
IF Amp
PLL
XTO
1...5
µC
Power
amp.
LNA
VCO
4896DâRKEâ08/08
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