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TDA5235 Datasheet, PDF (8/259 Pages) Infineon Technologies AG – Enhanced Sensitivity Double-Configuration Receiver with Digital Baseband Processing | |||
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TDA5235
Product Description
1.2
Features
⢠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
1.3
Applications
⢠Remote keyless entry systems
⢠Remote start applications
⢠Tire pressure monitoring
⢠Short range radio data transmission
⢠Remote control units
⢠Cordless alarm systems
⢠Remote metering
Data Sheet
8
V1.0, 2010-02-19
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