TELEFUNKEN Semiconductors
U2795B
2.5-GHz Double Balanced Mixer
Description
U2795B is a 2.5-GHz mixer for WLAN and RF telecom-
munications equipment, e.g., DECT and PCN, built with
TELEFUNKEN鈥檚 advanced bipolar technology. 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.
Features
D
Supply voltage range: 2.7 to 5.5 V
D
Single-ended output, no balun required
D
Single-ended input for RF and LO
D
Exellent isolation characteristics
D
Power down mode
D
IP3 and compression point programmable
D
2.5-GHz operating frequency
D
SO-8 package
Benefits
D
Reduced system costs due to few external component
(no balun) requirements
D
Standard independent product
D
3-V operation reduces the battery count and saves
space
Block Diagram
VS
2
RFi
3
P
R1
VH
VH
VR
Voltage
regulator
PD
8
R2
IFo
5
So
4
LO i 7
GND 6
VS
1
93 7811 e
Rev. A2: 08.06.1995
1 (13)