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ATMEL Corporation - UHF ASK/FSK Industrial Transmitter

Numéro de référence ATA8401
Description UHF ASK/FSK Industrial Transmitter
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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ATA8401 fiche technique
Features
Integrated PLL Loop Filter
ESD Protection (4 kV HBM/200V MM; Except Pin 2: 4 kV HBM/100V 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 2.0V to 4.0V in the Temperature Range of –40°C to +85°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
Applications
Industrial/Aftermarket Remote Keyless Entry Systems
Alarm, Telemetering, and Energy Metering Systems
Remote Control Systems for Consumer and Industrial Markets
Access Control Systems
Home Automation
Home Entertainment
Toys
www.DataSheet4U.com
1. Description
The ATA8401 is a PLL transmitter IC, which has been developed for the demands of
RF low-cost transmission systems for industrial applications at data rates up to
50 kBaud ASK and 32 kBaud FSK modulation scheme. The transmitting frequency
range is 310 MHz to 350 MHz. It can be used in both FSK and ASK systems.
Figure 1-1. System Block Diagram
1 Li cell
Keys
Encoder
ATARx9x
UHF ASK/FSK
Remote control transmitter
UHF ASK/FSK
Remote control receiver
ATA8401
PLL
XTO
VCO
Antenna Antenna
ATA3741/
ATA3745/
ATA5743/
ATA5744/
ATA8201
Demod
IF Amp
Control
1 to 3 Micro-
controller
PLL XTO
LNA
LNA
VCO
UHF ASK/FSK
Industrial
Transmitter
ATA8401
4984A–IND–02/07

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