TDA7442 - TDA7442D

4/17

TREBLE CONTROL

Control Range

Max. Boost/cut

+13.0

+14.0

+15.0

dB

Step Resolution

1

2

3

dB

EFFECT CONTROL

Control Range

- 21

- 6

dB

Step Resolution

0.5

1

1.5

dB

SURROUND SOUND MATRIX PHASE

Phase Shifter 1: D1 = 0, D0 = 0

8.3

11.8

15.2

K

Ω

Phase Shifter 1: D1 = 0, D0 = 1

10

14.1

18.3

K

Ω

Phase Shifter 1: D1 = 1, D0 = 0

12.6

17.9

23.3

K

Ω

Phase Shifter 1: D1 = 1, D0 = 1

26.4

37.3

48.85

K

Ω

SURROUND SOUND MATRIX

TEST CONDITION (Phase Resistor Selection D0=0, D1=1, D2=0. D3=1, D4=0, D5=1, D6=0, D7=1

In-phase Gain (OFF)

Mode OFF, Input signal of

-1

0

1

dB

LR In-phase Gain Difference

(OFF)

Mode OFF, Input signal of 1kHz,

-1

0

1

dB

In-phase Gain (Music)

Music mode, Effect Ctrl = -6dB

7dB

LR In-phase Gain Difference

(Music)

Music mode, Effect Ctrl = -6dB

0dB

SPEAKER ATTENUATORS

Control Range

79

dB

Step Resolution

-0.5

1

1.5

dB

Attenuation set error

Av = 0 to -20dB

-1.5

0

1.5

dB

Av = -20 to -79dB

-3

0

2

dB

DC Steps

adjacent att. steps

-3

0

3

mV

Output Mute Condition

+70

100

dB

Input Impedance

21

30

39

K

Ω

AUDIO OUTPUTS

Output Noise (OFF)

Output Mute, Flat

4

5

µVrms

µVrms

Output Noise (Music)

Mode = Music ,

30

mVrms

30

mVrms

d

Distorsion

0.01

0.1

%

Channel Separation

70

90

dB

Clipping Level

d = 0.3%

2

2.5

Vrms

Output Resistance

10

30

50

Ω

Table 5. Electrical Characteristics (continued)

0dB), Effect Ctrl = -6dB, MODE = OFF; f = 1KHz unless otherwise specified.

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit