65 - 300 MHz SiGe IF Receiver / Demodulator
Features
• • • •
Gain control in 20-dB steps Very low I/Q amplitude and phase errors High input P1dB Buffered IF OUT ava...
Description
Features
Gain control in 20-dB steps Very low I/Q amplitude and phase errors High input P1dB Buffered IF OUT available through baseband output
Applications
Infrastructure digital communication systems GSM/cellular transceivers ISM band transceivers
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Electrostatic sensitive device. Observe precautions for handling.
65 - 300 MHz SiGe IF Receiver / Demodulator T0797
Description
The T0797 is a multi-purpose demodulator RFIC. The silicon monolithic integrated circuit is a designed in Atmels advanced SiGe technology. This demodulator is capable of both quadrature demodulation or direct IF output. Features include switchable gain control on a frequency range from 65 MHz to 300 MHz. The device performs a very low amplitude as well as phase error and allows high input P1dB. The T0797 targets a variety of system applications for communications including 3G wireless.
Block Diagram
Figure 1.
GC1
5
GC2
4 2 1
BBIP BBIN
IFP IFN
8 9
ϕ
16 15 13 12
BBQP BBQN
LOP LON
Rev. A2, 03-Dec-01
Preliminary Information
1 (10)
Preliminary Information
Ordering Information
Extended Type Number T0797 Package TSSOP16 Remarks
Pin Configuration
Figure 2.
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BBIN BBIP VCC GC2 GC1 GND VCC IFP
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
BBQP BBQN VCC LOP LON GND VCC IFN
Pin Description
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol BBIN BBIP VCC GC2 GC1 GND VCC IFP IFN VCC GND LON LOP VCC BBQN BBQP Baseband I-axis negative output Baseband I-axi...
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