path detection and one for sound processing. An

I2C/SPI interface is implemented for control and

communication with the main micro.

A separate SPI is available to interface the dis-

play micro.

The DSP cores are integrated with their associ-

ated data and program memories. The peripher-

als and interfaces I

(SAI), PLL Oscillator, External Memory Interface,

(EMI), General Purpose I/O register (Port A) and

the D/A registers are connected to and controlled

by DSP0, whereas the A/D registers, the SPDIF

and the General Purpose I/O register (Port B) are

connected to and controlled by DSP1. The Debug

and Test Interface are connected to both DSP

cores.

The TDA7500 is supposed to be used in kit with

the TDA7501 or any other device of the same

family. Thanks to the serial audio interface also

digital sources can be processed and a direct

output to a digital bus is also available.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52

51

TESTEN

TESTSE

NRESET

SCKM

MOSIM

MISOM

SSM

SCKD

MOSID

MISOD

SSD

AVDD

XTI

XTO

CLKIN

AGND

RDSINT

RDSARI_SCLK

RDSDAT_SI

RDSQAL_SO

RDSCLK_SS

INT

SRCCD

SRCMD

GND1

DBCK0OS01

DBIN0OS00

DBOUT0

DBRQN1

DBCK1_OS11

DBIN1_OS10

DBOUT1

LRCKR

SCKR

LRCKT

SCKT

SDI0

SDI1 / SRA<21>

SDI2 / SRA<20>

SDO0 / SRA<19>

SDO1 / SRA<18>

SDO2 / SRA<17>

CASALE

DRD

DWR

SRA<15>

SRA<14>

SRA<13>

CVDD2

SRA<16>

DSP0 GPIO0

DSP0 GPIO2

DSP0 GPIO1

DSP0 GPIO3

DSP0 GPIO4

DSP0 GPIO6

DSP0 GPIO5

DSP0 GPIO7

DSP1 GPIO4

DSP1 GPIO3

DSP1 GPIO1

DSP1 GPIO2

DSP1 GPIO0

DSP0 GPIO9

DSP0 GPIO11

DSP0 GPIO10

DSP0 GPIO8

DSP1 GPIO5

DSP1 GPIO6

DSP1 GPIO7

DSP1 GPIO8

DSP1 GPIO9

DSP1 GPIO11

DSP1 GPIO10

SRCCDC

CODEC

Test

IIC/SPI master

SPI display

PLL oscillator

RDS

SPDIF + Sample Rate Converter

EMI

SAI

Debug DSP1

Debug DSP0

Control Inputs

PIN CONNECTION

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

VDD

VCC

Power supplies

Digital

Analog

4.6

4.6

V

V

Analog Input Voltage

-0.5 to (VDD+0.5)

V

Digital Input Voltage

-0.5 to (VCC+0.5)

V

Operating Temperature Range

-40 to 85

°C

Storage Temperature

-55 to 150

°C

Warning: Operation at or beyond these limit may result in permanent damage to the device.

Normal operation is not guaranteed at these extremes.

TDA7500

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