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Atmel Electronic Components Datasheet



T0797

65 - 300 MHz SiGe IF Receiver / Demodulator



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T0797 pdf
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
Description
The T0797 is a multi-purpose demodulator RFIC. The silicon monolithic integrated cir-
cuit 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.
T0797
Block Diagram
Figure 1.
GC1
5
GC2
4
IFP 8
IFN 9
2
BBIP
1 BBIN
ϕ
13 12
16 BBQP
15 BBQN
Rev. A2, 03-Dec-01
Preliminary Information 1 (10)



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T0797 pdf
Preliminary Information
Ordering Information
Extended Type Number
T0797
Package
TSSOP16
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 BBQP
15 BBQN
14 VCC
13 LOP
12 LON
11 GND
10 VCC
9 IFN
Pin Description
Pin Symbol
1 BBIN
2 BBIP
3 VCC
4 GC2
5 GC1
6 GND
7 VCC
8 IFP
9 IFN
10 VCC
11 GND
12 LON
13 LOP
14 VCC
15 BBQN
16 BBQP
Baseband I-axis negative output
Baseband I-axis positive output
5 V power supply
Gain control input, stage 2
Gain control input, stage 1
Ground
5 V power supply
IF positive input
IF negative input
5 V power supply
Ground
Local oscillator, negative input
Local oscillator, positive input
5 V power supply
Baseband Q-axis negative output
Baseband Q-axis positive output
Function
Remarks
2 (10) T0797
Rev. A2, 03-Dec-01



Part Number T0797
Description 65 - 300 MHz SiGe IF Receiver / Demodulator
Maker ATMEL Corporation - ATMEL Corporation
Total Page 10 Pages
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