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STMicroelectronics Electronic Components Datasheet

TDA7529 Datasheet

RF front-end for AM/FM DSP car-radio

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TDA7529
RF front-end for AM/FM DSP car-radio with IF sampling
Features
Fully integrated VCO for world tuning
High performance PLL for fast RDS system
I/Q mixer for FM IF 10.7MHz with image
rejection and integrated LNA
I/Q mixer for AM IF 10.7MHz up conversion
with high dynamic range
LQFP64
Integrated balun, Which allows saving of
external mixer tank
RF AGC, IF AGC, DAGC
Low noise IF amplifier with switched wide
dynamic AGC range
Description
IF switch for FM / AM / IBOC
Electronic alignment for the preselection
stages
I2C/SPI controlled
The front-end is a high performance tuner circuit
for AM/FM - DSP car-radios with 10.7MHz IF
sampling. It contains mixer and IF amplifiers for
AM and FM, fully integrated VCO and PLL
www.DataSheet4sUy.conmthesizer on a single chip. Use of BiCMOS
single 5v SUPPLY
Alternative frequency control signals to DSP
technology allows the implementation of several
tuning functions and a minimum of external
components.
Table 1. Device summary
Part number
TDA7529
TDA7529TR
Package
LQFP64 exposed pad (10x10x1.4)
LQFP64 exposed pad (10x10x1.4)
Packing
Tray
Tape and reel
March 2007
Rev 1
1/60
www.st.com
1


STMicroelectronics Electronic Components Datasheet

TDA7529 Datasheet

RF front-end for AM/FM DSP car-radio

No Preview Available !

Contents
Contents
TDA7529
1 Functional block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Function description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 IMR Mixer and active balun output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 FM RF-AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 AM RF-AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4 IF AGC and IF amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.5 Dividers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.6 D/A Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.7 VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.8 FREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.9 A/D converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.10 GPIO - general purpose IO interface pins . . . . . . . . . . . . . . . . . . . . . . . . 16
3.11 AFSAMPLE/AFHOLD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.12 Serial BUS interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.3 General key parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.4 FM - section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.5 AM - section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.6 IF - section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.7 VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.8 Reference frequency input buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.9 Dividers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.10 Phase locked loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.11 Phase frequency detector and charge pump . . . . . . . . . . . . . . . . . . . . . . 25
4.12 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.13 D/A-Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2/60


Part Number TDA7529
Description RF front-end for AM/FM DSP car-radio
Maker ST Microelectronics
Total Page 30 Pages
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