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PDF TDA5251F1 Data sheet ( Hoja de datos )
| Número de pieza | TDA5251F1 | |
| Descripción | ASK/FSK 315MHz Wireless Transceiver | |
| Fabricantes | Infineon Technologies | |
| Logotipo |  |
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Data Sheet, Version 1.1, 2007-02-26
TDA5251 F1
ASK/FSK 315MHz Wireless
Transceiver
Wireless Components
Never stop thinking.
1 page  
ASK/FSK 315MHz Wireless Transceiver
TDA5251 F1
Version 1.1
Product Info
General Description
The IC is a low power consumption single chip FSK/ASK
Transceiver for half duplex low datarate communication in the
315MHz 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
– Low supply current (Is = 9mA typ. receive, Is
= 13mA typ. transmit mode)
– Supply voltage range 2.1 - 5.5V
– Power down mode with very low supply
current consumption
– FSK and ASK modulation and demodulation
capability
– Fully integrated VCO and PLL
synthesizer and loop filter on-chip with on
chip crystal oscillator tuning
– I2C/3-wire µController Interface
– 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
– Self-polling logic with ultra fast data rate
detection
Application
– Low Bitrate Communication
Systems
– Keyless Entry Systems
– Remote Control Systems
– Alarm Systems
– Telemetry Systems
– Electronic Metering
– Home Automation Systems
Type
TDA5251 F1
Data Sheet
Ordering Code
SP000014554
5
Package
PG-TSSOP-38
2007-02-26
5 Page 
2.2 Pin Definitions and Functions
Table 2-1 Pin Definition and Function
Pin No. Symbol Equivalent I/O-Schematic
1 VCC
1 11
15
TDA5251 F1
Version 1.1
Functional Description
Function
Analog supply (antiparallel diodes
between VCC, VCC1, VDD)
2 BUSMODE
Bus mode selection (I²C/3 wire bus
mode selection)
350
2
3 LF
200
3
4 ASKFSK
Loop filter and VCO control voltage
ASK/FSK- mode switch input
350
4
Data Sheet 11 2007-02-26
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TDA5251F1.PDF ] | |
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