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PDF TDA5250D2 Data sheet ( Hoja de datos )
| Número de pieza | TDA5250D2 | |
| Descripción | ASK/FSK 868MHz Wireless Transceiver | |
| Fabricantes | Infineon Technologies | |
| Logotipo |  |
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Data Sheet, Version 1.7, 2007-02-26
TDA5250 D2
ASK/FSK 868MHz Wireless
Transceiver
Wireless Components
Never stop thinking.
1 page  
ASK/FSK 868MHz Wireless Transceiver
TDA5250 D2
Version 1.7
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
■ Low supply current (Is = 9mA typ. receive,
Is = 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
■ 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
■ Datarates up to 64kBit/s Manchester
encoded
■ 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
TDA5250 D2
Ordering Code
SP000012956
Package
<Dev_Package1>
Data Sheet 5 2007-02-26
5 Page 
2 Functional Description
2.1 Pin Configuration
TDA5250 D2
Version 1.7
Functional Description
VCC
BUSMODE
LF
____
ASKFSK
__
RxTx
LNI
LNIx
GND1
GNDPA
PA
VCC1
PDN
PDP
SLC
VDD
BUSDATA
BUSCLK
VSS
XOUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Figure 2-1 Pin Configuration
TDA5250
38 CI1
37 CI1x
36 CQ1
35 CQ1x
34 CI2
33 CI2x
32 CQ2
31 CQ2x
30 GND
29 RSSI
28 DATA
___
27 PWDDD
26 CLKDIV
______
25 RESET
___
24 EN
23 XGND
22 XSWA
21 XIN
20 XSWF
5250D1_pin_conf.wmf
Data Sheet 11 2007-02-26
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TDA5250D2.PDF ] | |
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