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T5753

ATMEL Corporation
Part Number T5753
Manufacturer ATMEL Corporation
Description UHF ASK/FSK TRANSMITTER
Published May 1, 2007
Detailed Description Features • Integrated PLL Loop Filter • ESD Protection (4 kV HBM/ 200 V MM; Except Pin 2: 4 kV HBM/ 100 V MM) also at AN...
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T5753
T5753

Overview
Features • Integrated PLL Loop Filter • ESD Protection (4 kV HBM/ 200 V MM; Except Pin 2: 4 kV HBM/ 100 V MM) also at ANT1/ANT2 • High Output Power (8.
0 dBm) with Low Supply Current (9.
0 mA) • Modulation Scheme ASK/FSK • • • • • • • • – FSK Modulation is Achieved by Connecting an Additional Capacitor Between the XTAL Load Capacitor and the Open Drain Output of the Modulating Microcontroller Easy to Design-in Due to Excellent Isolation of the PLL from the PA and Power Supply Single Li-cell for Power Supply Supply Voltage 2.
0 V to 4.
0 V in the Temperature Range of -40° C to 85° C/125° C Package TSSOP8L Single-ended Antenna Output with High Efficient Power Amplifier CLK Output for Clocking the Microcontroller One-chip Solution with Minimum External Circuitry 125° C Operation for Tire Pressure Systems UHF ASK/FSK Transmitter T5753 Description The T5753 is a PLL transmitter IC which has been developed for the demands of RF low-cost transmission systems at data rates up to 32 kBaud.
The transmitting frequency range is 310 MHz to 330 MHz.
It can be used in both FSK and ASK systems.
Figure 1.
System Block Diagram UHF ASK/FSK Remote control transmitter www.
DataSheet4U.
com UHF ASK/FSK Remote control receiver 1 Li cell T5753 Encoder ATARx9x XTO PLL Antenna Antenna VCO U3741B/ U3745B/ T5743/ T5744 Demod.
1.
.
.
3 Control Keys IF Amp PLL XTO Power amp.
LNA VCO Microcontroller Rev.
4510F–RKE–07/04 Pin Configuration Figure 2.
Pinning TSSOP8L CLK 1 8 ENABLE GND PA_ENABLE 2 T5753 7 ANT2 3 6 VS ANT1 4 5 XTAL Pin Description Pin Symbol Function Configuration VS 1 CLK Clock output signal for microcontroller The clock output frequency is set by the crystal to fXTAL/4 100 100 CLK PA_ENABLE 50k Uref = 1.
1V 2 PA_ENABLE Switches on power amplifier, used for ASK modulation 20 µA ANT1 3 4 ANT2 ANT1 Emitter of antenna output stage Open collector antenna output ANT2 VS 1.
5k 1.
2k VS 5 XTAL Connection for crystal XTAL 182 µA 6 7 8 VS GND ENABL...


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