tda5235 Infineon Technologies Corporation, tda5235 Datasheet - Page 8

• Manufacturer Part Number: tda5235
• Description: Enhanced Sensitivity Double-configuration Receiver With Digital Baseband Processing
• Manufacturer: Infineon Technologies Corporation

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Data Sheet
Enhanced sensitivity receiver
Multi-band (300-320, 425-450, 863-870 and 902-928 MHz)
One crystal frequency for all supported frequency bands
21-bit Sigma-Delta Fractional-N PLL synthesizer with high resolution of 10.5 Hz
Up to 2 parallel parameter sets for autonomous scanning and receiving from different
sources reduces significantly host processor power consumption and system
standby power consumption
One frequency channels per parameter set is supported with 10.5 Hz resolution
Autonomous receive mode leads to reduced noise of host processor and improved
system performance
Ultrafast Wake-up on RSSI
Fast synchronization on incoming data stream typically within first 4 bits of a telegram
Selectable IF filter bandwidth and optional external filters possible
Double down conversion image reject mixer
ASK and FSK capability
Automatic Frequency Control (AFC) for carrier frequency offset compensation
Supports bi-phase line codes like Manchester, bi-phase mark/space and differential
Manchester
NRZ data pre-processing capability
Digital base band receiver with clock synch, frame synch, format decoding and FIFO
Separate outputs for recovered data and clock
RSSI peak detectors
Wake-up generator and polling timer unit
Message ID scanning
Unique 32-bit serial number
On-chip temperature sensor
Integrated timer usable for external watch unit
Integrated 4-wire SPI interface bus
Supply voltage range 3.0 Volts to 3.6 Volts or 4.5 Volts to 5.5 Volts
Operating temperature range -40 to +105°C
ESD protection +/- 2 kV on all pins
Package PG-TSSOP-28
Remote keyless entry systems
Remote start applications
Tire pressure monitoring
Short range radio data transmission
Remote control units
Cordless alarm systems
Remote metering
Features
Applications
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Product Description
V1.0, 2010-02-19
TDA5235