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ATAR862 Datasheet(PDF) 4 Page - ATMEL Corporation

Part # ATAR862
Description  Microcontroller with UHF ASK/FSK Transmitter
PDF  112 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATAR862 Datasheet(HTML) 4 Page - ATMEL Corporation

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4
4589G–4BMCU–09/06
ATAR862-8
3.
UHF ASK/FSK Transmitter Block
4.
Features
• Integrated PLL Loop Filter
• High Output Power (5.5 dBm) with Low Supply Current (8.5 mA Typically)
• 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
• 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
5.
Description
The PLL transmitter block 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.



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