TDA7440 datasheet(4/17 Pages) STMICROELECTRONICS

4 / 17 page

TDA7440D

4/17

Figure 4. Test Circuit

AUDIO OUTPUTS

VCLIP

Clipping Level

d = 0.3%

2.1

2.6

Vrms

Output Load Resistance

Ω

Output Impedance

Ω

VDC

DC Voltage Level

3.5

3.8

4.1

GENERAL

ENO

Output Noise

All gains = 0dB;

µV

BW = 20Hz to 20KHz flat

Total Tracking Error

AV = 0 to -24dB

AV = -24 to -47dB

S/N

Signal to Noise Ratio

All gains 0dB; VO = 1Vrms

106

Channel Separation Left/Right

100

dDistortion

AV = 0; VI = 1Vrms

0.01

0.08

BUS INPUT

VIL

Input Low Voltage

VIH

Input High Voltage

IIN

Input Current

VIN = 0.4V

-5

µA

Output Voltage SDA

Acknowledge

IO = 1.6mA

0.4

0.8

Table 5. Electrical Characteristcs (continued)

Refer to the test circuit Tamb = 25°C, VS = 9V, RL = 10KΩ, RG = 600Ω, all controls flat (G = 0dB), unless

otherwise specified.

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

µF

5.6nF

100nF

5.6K

2.2

µF

5.6nF

2.2

µF

100nF

5.6K

0.47

µF

0.47

µF

0.47

µF

0.47

µF

0.47

µF

0.47

µF

0.47

µF

0.47

µF

0/30dB

2dB STEP

MUXOUTL

INL

VOLUME

TREBLE

TREBLE(L)

MUXOUTR

INR

TREBLE(R)

BOUT(L)

SPKR ATT

LEFT

LOUT

SCL

SDA

DIG_GND

ROUT

D98AU885

2CBUS DECODER + LATCHES

100K

L-IN1

L-IN2

L-IN3

L-IN4

100K

R-IN1

R-IN2

R-IN3

R-IN4

INPUT MULTIPLEXER

+ GAIN

BASS

BIN(L)

BASS

SPKR ATT

RIGHT

BOUT(R)

BIN(R)

SUPPLY

CREF

AGND

VREF

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