ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

VOLUME CONTROL

Max Gain

20

dB

Max Attenuation

79

dB

Step Resolution

1

dB

Attenuation Set Error

G = -20 to 20dB

-1.25

0

1.25

dB

G = -60 to 20dB

-4

0

3

dB

Tracking Error

2dB

DC Steps

Adjacent Attenuation Steps

0.1

3

mV

0.5

5

mV

LOUDNESS CONTROL

Step Resolution

1

dB

Max. Attenuation

15

dB

Lower Center Frequency

200

Hz

Higher Center Frequency

400

Hz

SOFT MUTE

Mute Attenuation

70

100

dB

Delay Time

T1

0.48

ms

T2

0.96

ms

T3

40.4

ms

T4

324

ms

Low Threshold for SM Pin

(1)

1V

High Threshold for SM Pin

2.5

V

Internal Pull-up Resistor

70

100

130

K

Ω

Pull-up Voltage

4.7

V

SOFT STEP

Switch Time

10

ms

BASS CONTROL

Control Range

±14

dB

Step Resolution

2

dB

Center Frequency

60

Hz

70

Hz

80

Hz

100

(2)

Hz

Quality Factor

1

1.25

1.5

2

Bass-Dc-Gain

DC = off

0

dB

DC = on

4.4

dB

1) SM pin is active low (mute condition)

2) See description of Audioprocessor Part - Bass & Treble filter characteristics programming

TDA7403

5/26