TDA7501 Datasheet TDA7501 | P1-P3

January 2007 Rev 5 1/29

TDA7501

Line driver for digital car radio

Signal processor (DSPLD)

Features

■ Inputs:

– Quasi differential stereo input for CD

– Differential stereo inputs for phone,

navigation, FM, AM

– Single-ended input for cassette- four

independent input multiplexer and gain

stages

– Envelope-detector for AM noise-blanking

– Mixing of phone and navigation

– DC connection to DSP

– Dual MPX inputs

■ Outputs:

– 6 Output channels with independent

volume control

– 4 Main output channels with additional

input selector for phone and/or navigation

or CD

– Outputs level up to 4V rms

– AC connection from DSP

■ Digital control:

– SPI bus or I

C bus interface (selectable)

– Direct mute for the output stages and/or

high impedance mpx mute

Description

The line driver handles all analog input and output

signals for the digital car radio signal processor

TDA7501. The device contains four independent

input multiplexers to select the sources for the

DSP's four AD converters. Four additional gain

stages allow an adaptation to run the ADCs in

best S/N condition.

The six outputs have independent volume stages

with a large dynamic range. Using a 12V supply

the outputs are able to drive up to 4Vrms .

LQFP44

Order codes

Part number Package Packing

TDA7501 LQFP44 (10 x 10 x 1.4 mm) Tray

TDA7501TR LQFP44 (10 x 10 x 1.4 mm) Tape and Reel

www.st.com

Obsolete Product(s) - Obsolete Product(s)

Contents TDA7501

2/29

Contents

1 Block diagram and pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Description of the input part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1 Input Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.2 Dual MPX mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3 Additional quasi differential Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.4 Transfer function of the AM/FM level inputs . . . . . . . . . . . . . . . . . . . . . . . 12

4 Description of the output part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 Overall gain structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.2 Speaker (linedriver) outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5 Reference concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.1 Dual supply mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5.2 Single supply mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6 Digital interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7 SPI bus mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7.1 Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

8 I2C bus mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8.1 Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

9 Software specification for both modes . . . . . . . . . . . . . . . . . . . . . . . . . 19

9.1 Auto increment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

9.2 Reset condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

9.3 Programming modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

10 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Obsolete Product(s) - Obsolete Product(s)

TDA7501 List of tables

3/29

List of tables

Table 1. Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 4. Electrical characteristcs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 5. Switching characteristics (SPI mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 6. Subaddresses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 7. Input selector 1L..3R, bits D7 ..D3 (subaddresses 0..3) . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 8. Input selector 1L, bits D2 ..D0 (subaddresses 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 9. Input selector 1R, bits D2 ..D0 (subaddresses 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 10. Input selector 2L, bits D2 ..D0 (subaddresses 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 11. Input selector 2R, bits D2 ..D0 (subaddresses 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table 12. Phone navigation (subaddress 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 13. Mode select (subaddress 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 14. Configuration (subaddress 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table 15. Output selector (subaddress 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 16. Volume speaker outputs (subaddresses 8...13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Table 17. FM level range (subaddress 14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Table 18. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Obsolete Product(s) - Obsolete Product(s)

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P29

TDA7501

Mfr. #:

Buy TDA7501

Manufacturer:

STMicroelectronics

Description:

Audio DSPs Digit Car Radio Sig

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet

TDA7501