SGS Thomson Microelectronics TDA7313ND, TDA7313N Datasheet



DIGITAL CONTROLLED STEREO AUDIO PROCESSOR

INPUTMULTIPLEXER:

- 3 STEREO INPUTS

- SELECTABLEINPUT GAIN FOR OPTIMAL
ADAPTIONTO DIFFERENTSOURCES

LOUDNESSFUNCTION
VOLUMECONTROL IN 1.25dBSTEPS
TREBLEAND BASS CONTROL
FOURSPEAKERATTENUATORS:

- 4 INDEPENDENTSPEAKERSCONTROL

IN 1.25dB STEPS FOR BALANCEAND

FADERFACILITIES

- INDEPENDENTMUTE FUNCTION

ALL FUNCTIONS PROGRAMMABLE VIA SE-

2

RIAL I

DESCRIPTION

The TDA7313N is a vo l ume, tone (bass and treble)
balance (Left/Ri ght) and fader (front/rear) processor
for quality audio applications in car radio and Hi-Fi
systems.

Selectableinput gainand external loudnessfunction

C BUS

TDA7313N

WITH LOUDNESS

DIP28 SO28

ORDERING NUMBERS:

TDA7313N TDA7313ND

are provided. Control is accomplished by serial

2

C busmic r oproces s orinterface.

I
TheACsignalsettingisobtainedbyresistornetwo rks
andswitchescombinedwithoperationalamplifiers.

Thanks to the used BIPOLAR/C MOS Tecnol ogy ,
LowDistortion, LowNoiseandLow DC steppingare
obtained.

PIN CONNECTION (Topview)

November 1999

1/14

TDA7313N

TEST CIRCUIT

THERMAL DATA

Symbol Description SO28 DIP28 Unit

R

thj-pins

Thermal Resistance Junction-pins max 85 65 °C/W

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

T

amb

T

stg

Operating Supply Voltage 10.2 V

S

Operating Ambient Temperature -40 to 85 °C
Storage Temperature Range -55 to +150

QUICK REFERENCE DATA

Symbol Parameter Min. Typ. Max. Unit

V

V

CL

THD Total Harmonic DistortionV = 1Vrms f = 1KHz 0.01 0.1 %

S/N Signal to Noise Ratio 106 dB

S

Supply Voltage 6 9 10 V

S

Max. input signal handling 2 Vrms

Channel Separation f = 1KHz 103 dB

C

Volume Control 1.25dB step -78.75 0 dB
Bass and TrebleControl 2db step -14 +14 dB
Fader and Balance Control 1.25dB step -38.75 0 dB
Input Gain 3.75dB step 0 11.25 dB
Mute Attenuation 100 dB

C

°

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BLOCK DIAGRAM

TDA7313N

BUS

C17

5.6K R2

C11

2.7nF

100nF

100nF

100nF

TREBLE(L)

C15

BIN(L)

BOUT(L)

C14

LOUD(L)

SPKR

4

18

19

12

ATT

FRONT

OUT LEFT

25

RB

MUTE

ATT

SPKR

TREBLE

BASS

VOL

REAR

OUT LEFT

23

+ LOUD

MUTE

SCL

SDA

282726

SERIAL BUS DECODER + LATCHES

DIGGND

SPKR

RIGHT
OUT

24

ATT

BASS TREBLE

VOL

+ LOUD

FRONT

MUTE

ATT

SPKR

RIGHT

REAR

OUT

22

RB

MUTE

D98AU888

TREBLE(R)

5

BOUT(R) BIN(R)

21 20

LOUD(R)

8

C13

100nF

C12

100nF

C16

2.7nF

5.6K R1

C10

100nF

C9 2.2µF

17 16

OUT(L) IN(L)

INPUT

+ GAIN

SELECTOR

3x

2.2µF

L1 15L1L2 14L2L3 13

C1

C2

LEFT

INPUTS

C3

L3

R3 9R3R2 10R2R1 11

C4

C5

RIGHT

INPUTS

C6

R1

3x

2.2µF

76

OUT(R) IN(R)

SUPPLY

AGND CREF

231

V

C8 2.2µF

22µFC7

S

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TDA7313N

ELECTRICALCHARACTERISTICS (refer tothe test circuit T

R

= 600Ω, all controlsflat(G = 0), f = 1KHz unless otherwise specified)

G

=25°C, VS= 9V,RL= 10KΩ,

amb

Symbol Parameter Test Condition Min. Typ. Max. Unit

SUPPLY

V

S

I

S

SVR Ripple Rejection 60 80 dB

Supply Voltage 6 9 10 V
Supply Current 8 11 mA

INPUT SELECTORS

G
G
G

V

R

II

V

CL

S

IN

R

L

INmin

INmax

STEP

e

IN

DC

Input Resistance Input 1, 2, 3 35 50 70 KΩ
Clipping Level 2 2.5 Vrms
Input Separation (2) 80 100 dB
Output Load resistance pin 7, 17 2 KΩ
Min. Input Gain -1 0 1 dB
Max. Input Gain 11.25 dB
Step Resolution 3.75 dB
Input Noise G = 11.25dB 2
DC Steps adjacent gain steps 4 20 mV

G = 18.75 to Mute 4 mV

VOLUMECONTROL

R

IV

C

RANGE

A

VMIN

A

VMAX

A

STEP

E

A

E

T

V

DC

Input Resistance 20 33 50 kΩ
Control Range 70 75 80 dB
Min. Attenuation -1 0 1 dB
Max. Attenuation 70 75 80 dB
Step Resolution 0.5 1.25 1.75 dB
Attenuation Set Error Av = 0 to -20dB

Av = -20 to -60dB

-1.25

-3

0 1.25

2
Tracking Error 2dB
DC Steps adjacent attenuation steps

From 0dB to Av max

0

0.5

3

7.5

SPEAKERATTENUATORS

µ

dB
dB

mV
mV

V

C
S

A

range
STEP

E

MUTE

V

DC

A

Control Range 35 37.5 40 dB
Step Resolution 0.5 1.25 1.75 dB
Attenuation set error 1.5 dB
Output Mute Attenuation 80 100 dB
DC Steps adjacent att. steps

from 0 to mute

0
1

BASS CONTROL(1)

Gb Control Range Max. Boost/cut +12 +14 +16 dB

B

STEP

R

B

Step Resolution 1 2 3 dB
Internal Feedback Resistance 34 44 58 KΩ

TREBLECONTROL(1)

Gt Control Range Max. Boost/cut +13 +14 +15 dB

Step Resolution 1 2 3 dB

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T

STEP

10

3

mV
mV

TDA7313N

ELECTRICALCHARACTERISTICS (continued)

Symbol Parameter Test Condition Min. Typ. Max. Unit

AUDIO OUTPUTS

V

OCL

R

L

C

L

R

OUT

V

OUT

Clipping Level d = 0.3% 2 2.5 Vrms
Output Load Resistance 2 KΩ
Output Load Capacitance 10 nF
Output resistance 30 75 120 Ω
DC Voltage Level 4.2 4.5 4.8 V

GENERAL

e

NO

S/N Signal to Noise Ratio all gains = 0dB; V

d Distortion A

Sc Channel Separation left/right 80 103 dB

Output Noise BW = 20-20KHz, flat

output muted
all gains = 0dB

A curve all gains = 0dB 3 µV

O

=0,VIN= 1Vrms

V

A

= -20dB VIN= 1Vrms

Total Tracking error A

V

= 0 to -20dB

V

V

= 0.3Vrms

IN

-20 to -60 dB

2.5
515

µ
µV

= 1Vrms 106 dB

0.01

0.09

0.04

0
0

0.1

0.3

1
2

%
%
%

dB
dB

V

BUS INPUTS

V

IL

V

IH

I

IN

V

O

Notes:

(1) Bass and Trebleresponse seeattached diagram(fig.16). The center frequencyand quality ofthe resonance behaviour can be choosen by

the external circuitry. A standard first order bass response can be realized by a standard feedback network

(2) The selected input is groundedthru the 2.2µF capacitor.

Input Low Voltage 1V
Input High Voltage 3 V
Input Current -5 +5 µA
Output Voltage SDA

IO= 1.6mA 0.4 V

Acknowledge

Figure 1: Loudnessvs. VolumeAttenuation

Figure2: Loudnessvs. Frequency(C

100nF) vs. Volume Attenuation

LOUD

=

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