U2759B
IF Signal Processing for DAB
Description
The U2759B is a bipolar integrated IF signal processing circuit. It is designed for DAB (Digital
Audio Broadcasting)
applications.
Features
D
High linearity of the complete circuit
D
3-stage gain controlled wideband amplifier
D
Internal AGC loops
D
AGC time constants and thresholds adjustable
D
Mixer: double balanced high current Gilbert Cell
Block Diagram
DC
11
IF1IN
IF1IN
16
6 IF2OUT
1
7
3
14
4
GND
15
8
LO
LO
Figure 1.
9
5
AGCT
10
THRIF
12
VREF
BG
13
GND
NC
VS
9144
AGCPRE
THRPRE
Bandgap
2
Ordering and Package Information
Extended Type Number
U2759B-A
U2759B-AFL
U2759B-AFLG3
Package
DIP16
SO24
SO24
Remarks
Taping according ICE-286-3
TELEFUNKEN Semiconductors
Rev. A1, 06-Sep-96
1 (9)
Preliminary Information
TEMIC [ TEMIC SEMICONDUCTORS ]
