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TDA7255V SAMPLES

INFINEON SP000698114

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INFINEON

TDA7255V ASK/FSK TRANSC. 433MHZ
Supplier: Infineon Technologies
Matchcode: TDA7255V SAMPLES
Rutronik No.: ISM1307
Unit Pack: 1
MOQ: 2500
package: PG-VQFN-40
Packaging: REEL
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On request
2.28 $
5,700.00 $
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TDA7255V ASK/FSK TRANSC. 433MHZ Description

The TDA7255V is an ASK/FSK single-channel transceiver for 433- 435 MHz frequency band in a tiny VQFN-40 package. Due to the very high level of integration the device requires only a few external components. The extreme low current consumption in receive, transmit and especially in power down mode and the wide supply voltage range make TDA7255V the ideal choice for small, battery driven applications. The device contains a low noise amplifier (LNA), a double balanced mixer, a fully integrated VCO, a PLL synthesizer, a crystal oscillator with FSK modulator, a limiter with RSSI generator, a FSK demo dulator, a data filter, a data comparator (slicer), a positive and a negative data peak detector, a highly efficient power amplifier and a complex digital timing and control unit with I2 C/3-wire microcontroller interface. Additionally there is a power downfeature to save battery power. The transmit section uses direct ASK modulation by switching the power amplifier, and crystal oscillator detuning for FSK modulation. The necessary detuning load capacitors are external. The capacitors for fine tuning are integrated. The receive section is using a novel single-c onversion/direct-conversion scheme that is combining the advantages of both receive topologies. The IF is contained on the chip, no RF channel filters are necessary as the channel filter is also on the chip. The self-polling logic can be used to let the device operate autonomously as a master for a decoding microcontroller.

Parameter

Frequency
433 MHz
Function
ASK FSK
Datarate
64 kbps
Operat.temp.
-40 +85 °C
Package
PG-VQFN-40
Supply voltage
2,1 - 5,5 V
Encryption
Y Y/N
P(out)
13 dBm
Automotive
NO
Leadfree Defin.
RoHS-conform
Packaging
REEL
Low power
Y Y/N
Supplier Part
SP000698114
ECCN
EAR99
Customs Tariff No.
85176200900
Country
Germany
Supplier Leadtime
22 weeks
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