receiver鈥?/div>
Programmable controlled IF-gain stage
TQFP44
ORDERING NUMBER: TDA7515
Additional features:
s
s
s
High performance fast PLL for RDS-system
Electronic alignment for the preselection stages
All functions bus-controlled
AM/FM - DSP carradios with 10.7MHz - IF sampling.
It contains mixer and IF amplifiers for AM and FM,
VCO and PLL synthesizer on a single chip.
Use of BICMOS technology allows the implementa-
tion of several tuning functions and a minimum of ex-
ternal components.
DESCRIPTION
The frontend is a high performance tuner circuit for
1
BLOCK DIAGRAM
optional
2
2
AGC
ADJ
2
IF 10.7MHz
2
FM
PM
AGC
DAGC
I
Q
2
AGC
TV1
2
AM
PM
Bus
Interface
TV2
Supply
1/4
1/8
DIV
1/6
1/10
:1/:2/:3
VCO
LPOUT
PLL
REFDIV
LPAM
LPFM
LPHC
Fref
18/100kHz
00AT0037
July 2002
This is preliminary information on a new product now in development. Details are subject to change without notice.
1/5