TDA7439

4/19

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

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

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

AUDIO OUTPUTS

Clipping Level

d = 0.3%

2.1

2.6

Output Load Resistance

2

K

Ω

Output Impedance

10

40

70

Ω

DC Voltage Level

3.5

3.8

4.1

V

GENERAL

Output Noise

All gains = 0dB;

BW = 20Hz to 20KHz flat

515

µV

Total Tracking Error

0

1

dB

02

dB

S/N

Signal to Noise Ratio

95

106

dB

Channel Separation Left/Right

80

100

dB

d

Distortion

0.01

0.08

%

BUS INPUT

Input Low Voltage

1V

Input High Voltage

3

V

Input Current

-5

0

5

µA

Output Voltage SDA Acknowledge

0.4

0.8

V

Table 5. Electrical Characteristcs (continued)