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TDA7440D

Table 5. Electrical Characteristcs

otherwise specified.

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

SUPPLY

Supply Voltage

6

9

10.2

V

Supply Current

4

7

10

mA

SVR

Ripple Rejection

60

90

dB

INPUT STAGE

Input Resistance

70

100

130

K

Ω

Clipping Level

THD = 0.3%

2

2.5

Vrms

Input Separation

The selected input is grounded

through a 2.2

µ capacitor

80

100

dB

Minimum Input Gain

-1

0

1

dB

Maximum Input Gain

29

30

31

dB

Step Resolution

1.5

2

2.5

dB

VOLUME CONTROL

Input Resistance

20

33

50

K

Ω

Control Range

45

47

49

dB

Max. Attenuation

45

47

49

dB

Step Resolution

0.5

1

1.5

dB

Attenuation Set Error

-1.0

0

1.0

dB

-1.5

0

1.5

dB

Tracking Error

0

1

dB

0

2

dB

DC Step

adjacent attenuation steps from

0

0.5

3mV

mV

Mute Attenuation

80

100

dB

BASS CONTROL (1)

Gb

Control Range

Max. Boost/cut

+12.0

+14.0

+16.0

dB

Step Resolution

1

2

3

dB

Internal Feedback Resistance

33

44

55

K

Ω

TREBLE CONTROL (1)

Gt

Control Range

Max. Boost/cut

+13.0

+14.0

+15.0

dB

Step Resolution

1

2

3

dB

SPEAKER ATTENUATORS

Control Range

70

76

82

dB

Step Resolution

0.5

1

1.5

dB

Attenuation Set Error

-1.5

0

1.5

dB

-2

0

2

dB

DC Step

adjacent attenuation steps

0

3

mV

Mute Attenuation

80

100

dB

NOTE1:

1) The device is functionally good at Vs = 5V. a step down, on Vs, to 4V does’t reset the device.

2) BASS and TREBLE response: The center frequency and the response quality can be chosen by the external circuitry.