Rev. 4692CS–DECT–06/04
5.8-GHz Down
Converter IC
ATR2809
Summary
Preliminary
Features
Versatile GHz Frequency Range Down Converter
Low Power Building Block
Triple Balanced Mixer with High LO Rejection
Benefits
Low Current Consumption
Single Supply
Wide Supply Voltage Range of 2.7 V to 4.6 V
Easy to Use and Handle
Fully Integrated 5.8 GHz RF Port Matching
Integrated Coupling Capacitors at RF- and LO-ports
Open Collector IF Output Port
Wide Useful Frequency Ranges
RF: 2 GHz to 7 GHz
LO: 1 GHz to 4 GHz
IF: 0 GHz to 3 GHz
Electrostatic sensitive device.
Observe precautions for handling.
Description
The down converter IC ATR2809 is fabricated in Atmel's powerful SiGe bipolar
process.
The single ended RF input signal is differentially converted and down (or up) con-
verted by a triple balanced Gilbert-cell mixer.
Figure 1. Block Diagram
RF_P 15
RF_N 14
LO_P 10
LO_N 11
6 IF_P
7 IF_N
Note: This is a summary document. A complete document
is available under NDA. For more information, please con-
tact your local Atmel sales office.