for Audio Applications

4

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Note 1:

All voltages are referenced to ground. Currents entering the IC are specified positive, and currents exiting the IC are negative.

Note 2:

Note 3:

Input resistance during mute and power-down is approximately one-half of the active-mode resistance.

Note 4:

Each output is capable of driving a 100nF capacitive load to ground using an external 10Ω series resistor. However, output

capacitance should be minimal for optimal distortion performance.

Note 5:

Guaranteed by design.

Note 6:

This is the time it takes for the output to become active after exiting standby mode.

Note 7:

mode timing.

Note 8:

Note 9:

Note 10: Gain accuracy specified assuming the output impedance of signal source driving of the DS4420 is ≤ 2.5kΩ.

Typical Operating Characteristics

70

74

72

78

76

82

80

84

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(STANDBY MODE ENABLED)

SUPPLY VOLTAGE (V)

4.50

4.75

5.00

5.25

5.50

NO LOAD

IN+ AND IN- SHORTED

TOGETHER

+25°C

+70°C

-20°C

1.8

1.7

1.6

1.5

1.4

4.50

5.00

4.75

5.25

5.50

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(SETTING AT -11dB)

SUPPLY VOLTAGE (V)

NO LOAD

IN+ AND IN- SHORTED

TOGETHER

+25°C

-20°C

+70°C

0

0.6

0.4

0.2

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0

5

10

15

20

SUPPLY CURRENT vs. GAIN SETTING

GAIN SETTING

IN+ AND IN- SHORTED

TOGETHER

NO LOAD