參數(shù)資料
型號(hào)： TDA7500
廠商： 意法半導(dǎo)體
英文描述： DIGITAL AM/FM SIGNAL PROCESSOR
中文描述： 數(shù)字調(diào)幅/調(diào)頻信號(hào)處理器
文件頁(yè)數(shù)： 1/14頁(yè)
文件大?。?/td> 153K
代理商： TDA7500
FULL SOFTWARE FLEXIBILITY WITH TWO
24X24 BIT DSP CORES
AM/FM PROCESSING
AUDIO-PROCESSING AND SOUND-PROC-
ESSING
HARDWARE RDS FILTER, DEMODULATOR
& DECODER
INTEGRATED CODEC
IIC AND SPI CONTROL INTERFACES
SPI DEDICATED TO DISPLAY MICRO
6 CHANNEL SERIAL AUDIO INTERFACE SAI
SPDIF RECEIVER WITH SAMPLE RATE
CONVERTER
EXTERNAL MEMORY INTERFACE
DOUBLE DEBUG INTERFACE
ON-CHIP PLL
5V-TOLERANT 3V I/O INTERFACE
MULTIFUNCTION GENERAL PURPOSE I/O PORTS
DESCRIPTION
The TDA7500 is an integrated circuit implement-
ing a fully digital, integrated and advanced solu-
tion to perform the signal processing in front of
the power amplifier and behind the AM/FM tuner
or any other audio sources. The chip integrates
two 43 MIPs DSP cores: one for stereo decoding,
noise blanking, weak signal processing and multi-
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
September 1999
dig. aud. in
CD input
8+3
17
DSP1
X Register
Ram 512
Y Register
Ram 512
Program
Ram 1024
Rom 256
4
4
DSP0
Grp & blk
sync., error
correction
4
4
RDS
2
DSP Orpheus Core
including 12 GPIOs
FM processing,
AM processing,
Traffic mem., Dolby,
Speech synth., etc...
X bus 0
X bus 1
Exchange
Interface
Ext. Memory
Interface
IIC / SPI
Program
Ram 5632
Rom 256
Y Register
Ram 512
X Register
Ram 512
8.55MHz
CLK in
Int
Reset
5
VDD
GND
Test
5
uP control
Main micro
Display uP
Spectrum Analyser
RDS
Error corrected RDS blocks
alternatively:
RDS clk, dat, qual, ARI
128k (4(1 I/O)
DSP Orpheus Core
including 12 GPIOs
Audio processing,
Sound processing
XTAL Osc.,
PLL
RDS
Filter
Debug, Test Interface
SPI
Serial Audio
Interface
4
2
dig. aud. out
Mux
Audio Bus 6 ch.
Audio Bus Synch.
SPDIF
Interface
Sample Rate
Converter
Demod.
Σ
Modulator
Σ
Modulator
Σ
Modulator
Σ
Modulator
SC Filter
SC Filter
SC Filter
SC Filter
SC Filter
SC Filter
Noise
Shaper
Noise
Shaper
Noise
Shaper
Oversampling
Filter
Oversampling
Filter
Oversampling
Filter
Decimation
Filter
Decimation
Filter
Voltage
Ref.
Codec
Ctl Reg.
Test I/F
6
signal/line out
6
supply
2
3
Input Multiplexer,
Analog Level Adjust
analog audio in
2
3
4
2
3
1
tel,navi
AM/FM lev.
RDS mpx
1
Analog Volume Control,
Line Driver
IIC
3
AM
Noise
Detector
VDD GND
3
2
CDC input
MD input
4
4
SPI
Debug, Test Interface
(3 I/O's)
(3 I/O's)
RDS bit/blk Int.
Mute
Cref
2
1 stereo channel
CODEC-ref
VS
SigGnd RefOut
Output
select.
(4 I/O's)
(1 I/O)
(2 I/O's)
(4 I/O's)
2 channel analog bypass
DAC-ref
Data, ctl
(4 I/O's)
(2 I/O's)
BLOCK DIAGRAM
TQFP100 Power with Slug Down
TDA7500
DIGITAL AM/FM SIGNAL PROCESSOR
PRODUCT PREVIEW
1/14
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