ATA5744N-TKQY 19

ATA5744N-TKQY 19 Datasheet


• High Sensitivity, Especially at Low Data Rates<br>• SSO20 and SO20 package<br>• Fully Integrated VCO<br>• Supply Voltage 4.5V to 5.5V, Operating Temperature Range to

Part Datasheet
ATA5744N-TKQY 19 ATA5744N-TKQY 19 ATA5744N-TKQY 19 (pdf)
Related Parts Information
ATA5744N-TGSY ATA5744N-TGSY ATA5744N-TGSY
ATA5744N-TKSY 19 ATA5744N-TKSY 19 ATA5744N-TKSY 19
ATA5744N-TGQY ATA5744N-TGQY ATA5744N-TGQY
PDF Datasheet Preview
• Minimal External Circuitry Requirements, no RF Components on the PC Board Except Matching to the Receiver Antenna
• High Sensitivity, Especially at Low Data Rates
• SSO20 and SO20 package
• Fully Integrated VCO
• Supply Voltage 4.5V to 5.5V, Operating Temperature Range to
+105°C
• Single-ended RF Input for Easy Adaptation to l/4 Antenna or Printed

Antenna on PCB
• Low-cost Solution Due to High Integration Level
• Various Types of Protocols Supported i.e., PWM, Manchester and

Bi-phase
• Distinguishes the Signal Strength of Several Transmitters via RSSI Received Signal

Strength Indicator
• ESD Protection According to MIL-STD. 883 4KV HBM
• High Image Frequency Suppression Due to 1 MHz IF in Conjunction with a SAW

Front-end Filter, up to 40 dB is thereby Achievable with Newer SAWs
• Power Management Polling is Possible by Means of a Separate Pin via the

Microcontroller
• Receiving Bandwidth BIF = 600 kHz

UHF ASK Receiver

ATA5744

The ATA5744 is a PLL receiver device for the receiving range of f0 = 300 MHz to 450 MHz. It is developed for the demands of RF low-cost data communication systems with low data rates and fits for most types of modulation schemes including Manchester, Bi-phase and most PWM protocols. Its main applications are in the areas of telemetering, security technology and keyless-entry systems.

Figure System Block Diagram
1 Li cell

Encoder Keys ATARx9x

UHF ASK/FSK Remote control transmitter

UHF ASK Remote control receiver

U2741B

ATA5744

Demod.

Data interface

Antenna

IF Amp PLL

Microcontroller

Power amp.

Pin Configuration

Figure Pinning SO20 and SSO20
20 DATA 19 ENABLE 18 TEST 17 RSSI 16 MODE 15 DVCC 14 XTO 13 LFGND 12 LF 11 LFVCC

ATA5744

BR_0 1 BR_1 2 CDEM 3 AVCC 4 AGND 5 DGND 6 MIXVCC 7 LNAGND 8 LNA_IN 9

NC 10

Table Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Pin Description Symbol BR_0 BR_1 CDEM AVCC AGND DGND MIXVCC LNAGND LNA_IN NC LFVCC LF LFGND XTO DVCC

MODE

RSSI

TEST

ENABLE

DATA

Function Baud rate select LSB Baud rate select MSB Lower cut-off frequency data filter Analog power supply Analog ground Digital ground Power supply mixer High-frequency ground LNA and mixer RF input Not connected Power supply VCO Loop filter Ground VCO Crystal oscillator Digital power supply Selecting MHz /315 MHz Low 315 MHz USA High MHz Europe Output of the RSSI amplifier Test pin, during operation at GND Selecting operation mode Low sleep mode High receiving mode Data output
2 ATA5744

Figure Block Diagram

CDEM RSSI AVCC AGND DGND
Ordering Information

Extended Type Number ATA5744N-TKSY ATA5744N-TKQY ATA5744N-TGSY ATA5744N-TGQY

Package SSO20 SO20

Remarks Tube, Pb-free Taped and reeled, Pb-free Tube, Pb-free Taped and reeled, Pb-free

Package Information

Package SO20

Dimensions in mm
technical drawings according to DIN specifications
18 ATA5744

ATA5744

Package SSO20

Dimensions in mm
technical drawings according to DIN specifications

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More datasheets: PF21.3 | XBP09-DPUIT-156J | XBP09-DPWIT-156J | XBP09-DPSIT-156J | XBP09-DPUIT-156 | XBP09-DPSIT-156 | XBP09-DPWIT-156 | XBP09-DMDK | ATA5744N-TGSY | ATA5744N-TKSY 19


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Datasheet ID: ATA5744N-TKQY 19 519184