TDA5250XT Infineon Technologies, TDA5250XT Datasheet - Page 5

• Manufacturer Part Number: TDA5250XT
• Manufacturer: Infineon Technologies

Specifications of TDA5250XT

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 4.4mm
• Product Length (mm): 9.7mm
• Operating Supply Voltage (min): 2.1V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / Rohs Status: Compliant

ASK/FSK 868MHz Wireless Transceiver
TDA5250 D2
Product Info
General Description
The IC is a low power consumption single chip FSK/ASK
Transceiver for half duplex low datarate communication in the
868-870MHz band. The IC offers a very high level of integration
and needs only a few external components. It contains a highly
efficient power amplifier, a low noise amplifier (LNA) with AGC,
a double balanced mixer, a complex direct conversion stage, I/
Q limiters with RSSI generation, an FSK demodulator, a fully
integrated VCO and PLL synthesizer, a tuneable crystal
oscillator, an onboard data filter, a data comparator (slicer),
positive and negative peak detectors, a data rate detection
circuit and a 2/3-wire bus interface. Additionally there is a power
down feature to save battery power.
Features
Application
Data Sheet
Type
TDA5250 D2
Low supply current (I s = 9mA typ. receive,
I s = 12mA typ. transmit mode)
Supply voltage range 2.1 - 5.5V
Power down mode with very low supply cur-
rent consumption
FSK and ASK modulation and demodula-
tion capability
Fully integrated VCO and PLL
synthesizer and loop filter on-chip with on
chip crystal oscillator tuning
I
Low Bitrate Communication
Systems
Keyless Entry Systems
Remote Control Systems
2
C/3-wire µController Interface
Ordering Code
SP000012956
5
On-chip low pass channel select filter and
data filter with tuneable bandwidth
Data slicer with self-adjusting threshold and
2 peak detectors
FSK sensitivity <-109dBm, ASK sensitivity
< –109dBm
Transmit power up to +13dBm
Datarates up to 64kBit/s Manchester
encoded
Self-polling logic with ultra fast data rate
detection
Alarm Systems
Telemetry Systems
Electronic Metering
Home Automation Systems
Package
<Dev_Package1>
Version 1.7
2007-02-26