器件名称: U2795B-FP
功能描述: 2.5-GHz Double Balanced Mixer
文件大小: 350.49KB 共13页
简 介:TELEFUNKEN Semiconductors
U2795B
2.5-GHz Double Balanced Mixer
Description
U2795B is a 2.5-GHz mixer for WLAN and RF telecommunications equipment, e.g., DECT and PCN, built with TELEFUNKEN’s 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)
U2795B
Pin Description
Pin 1 2 3 4 5 6 7 8
TELEFUNKEN Semiconductors
VS RFI P SO
1 2 3 4
94 7890 e
8 7 6 5
PD LOi GND IFO
Symbol VS RFi P SO IFO GND LOi PD
Function Supply voltage RF input Progamming port IP3, CP Output symmetry IF output Ground LO input Power down
Functional Description
Supply Voltage
The IC is designed for a supply voltage of 2.7 to 5.5 V. As the IC is internally stabilized, the performance of the circuit is nearly independ……
