ATA8401

Manufacturer Part NumberATA8401
ManufacturerATMEL Corporation
ATA8401 datasheet
 
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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
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
UHF ASK/FSK
Remote control transmitter
1 Li cell
ATA8401
Encoder
PLL
ATARx9x
Keys
XTO
VCO
LNA
UHF ASK/FSK
Remote control receiver
ATA3741/
ATA3745/
Demod
Control
ATA5743/
ATA5744/
ATA8201
IF Amp
Antenna
Antenna
PLL
XTO
LNA
VCO
UHF ASK/FSK
Industrial
Transmitter
ATA8401
1 to 3
Micro-
controller
4984A–IND–02/07