TDA7404D datasheet(11/35 Pages) STMICROELECTRONICS

11 / 35 page

TDA7404

Electrical specifications

11/35

Soft-step

TSW

Switch time

TSW1

0.68

TSW2

1.26

TSW3

2.52

TSW4

5.04

Bass control

CRANGE Control range

+14

+15

+16

ASTEP

Step resolution

0.5

1.5

Center frequency

fC1

fC2

fC3

100

110

fC4

180

200

220

QBASS

Quality factor

0.911.1

1.11.251.4

1.3

1.5

1.7

1.822.2

DCGAIN Bass DC gain

DC = off

-1

DC = on

4.4

Treble control

CRANGE Control range

+14

+15

+16

ASTEP

Step resolution

0.5

1.5

Center frequency

fC1

810

kHz

fC2

12.5

kHz

fC3

kHz

fC4

17.5

kHz

Speaker attenuator

CRANGE Control range

-53

-47

ASTEP

Step resolution

Only for attenuation up to 24 dB

0.5

1.5

AMUTE

Output mute attenuation

Attenuation set error

-2

VDC

DC steps

Adjacent attenuation steps

0.10

TZC

Zero cross timer

Data bit D1=1, D2=1

Vth

Zero cross threshold

+20

Table 5.

Electrical characteristics (continued)

(VS =9 V; Tamb=25 °C; RL=10 kΩ; all gains = 0 dB; f = 1 kHz; unless otherwise specified)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

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