TDA7505 Datasheet, PDF (7/38 Pages) STMicroelectronics – Car radio DSP for advanced signal processing

TDA7505
2
Block diagram
Block diagram
Figure 1. Block diagram
analog audio in
CD
CC
24
Navi. AM/FM Mpx
Tel.
Mpx RDS AM/FMLevel
2
2
3
Qdiff. Diff. Diff.
Qdiff.
analog audio out
ADC-ref
ADCVDD
ADCGND
AVDD
AGND
CLK in
8.55MHz
6 Ch. Audio Bus
2
receive bit&wordclk
digital audio in
SPDIF audio in
Input Source Selector
ΣΔ
ΣΔ
Decimation
Audio
ΣΔ
ΣΔ
Decimation
FM/Audio
AM/FM
level
ADC
PLL Clock
Generator
Crystal
Oscillator
SAI 6ch.
Receiver
SPDIF 2ch.
Interface
SINCOS
2ch sample
rate converter
SC
SC
Filter Filter
Noise
Shaper
Oversampl.
Filter
SC
SC
Filter Filter
Noise
Shaper
Oversampl.
Filter
SC
SC
Filter Filter
Noise
Shaper
Oversampl.
Filter
RDS
Filter
Demod.
Grp & blk
sync., error
correction
SPI/
IIC
10 word SPI 1
receive stack
IIC / SPI 1
SPI 2
SAI Transmitter
External Memory Interface
SRAM 4Mx8
DRAM 64Mx4
DSP1 Orpheus Core
Including 12 GPIO´s
AM processing,
FM processing,
CD compression,
Dolby B,
MP3
Debug Interface
X Ram 4096
X Rom 4096
Y Ram 40969
P Ram 4096
P Rom 16384
Xchg
Interface
X Ram 4096
Y Ram 4096
P Ram 4096
P Rom 16384
DSP0 Orpheus Core
Including 12 GPIO´s
Audio processing,
Sound processing,
TAM,
Echo & noisecancell.
Debug Interface
DAC-ref
DACVDD
DACGND
RDS Int.
RDSCS
4 _{μP control}
4
Display μP
3
2
6 Channel
Audio Bus
8+3
17
INT
NRESET
4
VDD
4
GND
Debug/Test
5
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