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Atmel Electronic Components Datasheet



U2795B

2.5-GHz Double balanced Mixer



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U2795B pdf
Features
Supply-voltage Range: 2.7 V to 5.5 V
Single-ended Output, no Balun Required
Single-ended Input for RF and LO
Excellent Isolation Characteristics
Power-down Mode
IP3 and Compression Point Programmable
2.5-GHz Operating Frequency
Benefits
Reduced System Costs as only Few External Component (no Balun) are Required
Small Package
Very Low Current Consumption
Easy to Use
Electrostatic sensitive device.
Observe precautions for handling.
Description
The U2795B is a 2.5-GHz mixer for WLAN and RF telecommunications equipment,
e.g., DECT and PCN. The IC is manufactured using Atmel's advanced bipolar technol-
ogy. A double-balanced approach was chosen to assure good isolation characteristics
and a minimum of spurious products. The input and output are single-ended, and their
characteristics are programmable. No output transformer or balun is required.
Figure 1. Block Diagram
2
RFi
VS
R2
5 IFo
3
P
R1
VH
4 So
VR
VH Voltage
regulator
8 PD
2.5-GHz
Double-
balanced
Mixer
U2795B
7
LO i
61
GND
VS
Rev. 4654A–CELL–01/03
1



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U2795B pdf
Pin Configuration
Figure 2. Pinning
VS 1
RF 2
P3
SO 4
Pin Description
Pin Symbol
1 VS
2 RFi
3P
4 SO
5 IFO
6 GND
7 LOi
8 PU
Function
Supply voltage
RF input
Progamming port IP3, CP
Output symmetry
IF output
Ground
LO input
Power-up
8 PU
7 LOi
6 GND
5 IFO
2 U2795B
4654A–CELL–01/03



Part Number U2795B
Description 2.5-GHz Double balanced Mixer
Maker ATMEL Corporation - ATMEL Corporation
Total Page 14 Pages
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