ASK datasheet(1/13 Pages) ATMEL

No de pièce	ASK

Description	Transmitter

PDF	13 Pages

Scroll/Zoom	100%

Fabricant	ATMEL [ATMEL Corporation]

Site Internet	http://www.atmel.com

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1 / 13 page

Features

• Integrated PLL Loop Filter

• ESD Protection also at ANT1/ANT2

(4 kV HBM/200V MM; Except Pin 2: 4 kV HBM/100V MM)

• High Output Power (5.5 dBm) with Low Supply Current (8.5 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 2.0V to 4.0V 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

1.

Description

The T5750 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 868 MHz to 928 MHz. It can be used in both FSK and ASK

systems.

Figure 1-1.

System Block Diagram

Micro-

controller

PLL

UHF ASK/FSK

Remote control receiver

UHF ASK/FSK

Remote control transmitter

T5750

T5760/

T5761

LNA

VCO

PLL

XTO

LNA

VCO

Antenna

Demod

Control

1 to 3

Encoder

ATARx9x

XTO

1 Li cell

Keys

Antenna

UHF ASK/FSK

Transmitter

T5750

4546F–RKE–12/08

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