TDA7420 datasheet(5/29 Pages) STMICROELECTRONICS

5 / 29 page

ELECTRICAL CHARACTERISTICS (continued.)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

TREBLE CONTROL

CRANGE

Control Range

+17

+18

+19

ASTEP

Step Resolution

0.5

1.5

Internal Feedback Resistance

Ω

SPEAKER ATTENUATORS

CRANGE

Control Range

ASTEP

Step Resolution

AV = 0 to -40dB

0.5

1.5

AMUTE

Output Mute Attenuation

100

Attenuation Set Error

AV = 0 to -40dB

1.50

VDC

DC Step

Adjacent Attenuation Steps

0.1

AUDIO OUTPUTS

VCLIP

Clipping Level

d = 0.3%

2.0

2.5

VRMS

Output Load Resistance

Ω

ROUT

Output Impedance

100

200

300

Ω

VDC

DC Voltage Level

3.35

3.6

3.85

GENERAL

ENO

Output Noise

BW = 20Hz to 20KHz, flat

Output Muted

All gains = 0dB

4.0

5.0

µV

S/N

Signal to Noise Ratio

All gains 0dB; VO =1VRMS ;

106

Distortion

VI =1VRMS ;

0.01

0.08

Channel Separation Left/Right

Total Tracking Error

AV = 0 to -20dB;

AV = -20 to -40dB;

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

0.1

0.4

SUPPLY

VIL

Supply Voltage

6.5

8.5

10.0

Supply Current

Stereo Decoder = ON

Stereo Decoder = OFF

SVR

Ripple Rejection

Cref =22

µF

Audioprocessor

Stereo Decoder + Audioprocessor

TDA7420

5/29

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