Elektronische Bauelemente

SGSC34119

Low Power Audio Amplifier

17-Dec-2009 Rev. A

Page 2 of 9

PIN FUNCTION DESCRIPTION

ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

VALUE

UNIT

Supply Voltage

-1.0 to 18

Vdc

±250

mA

Vdc

Junction Temperature

-55, 140

°C

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

MIN

MAX

UNIT

Supply Voltage

Voltage @ CD (PIN 1)

2.0

0

16

Vdc

Load Impedance

8.0

-

Peak Load Current

-

±200

mA

Differential Gain (5.0kHz Bandwidth)

AVD

0

46

dB

Ambient Temperature

-20

70

°C

SYMBOL

PIN

DESCRIPTION

CD

1

Chip Disable-Digital input. A Logic “0” (<0.8V) sets normal operation. A

Logic “1” (≧2V) sets the power down mode. Input impedance is

nominally 90k .

FC2

2

A capacitor at this pin increases power supply rejection, and affects

turn-on time. This pin can be left open if the capacitor at FC1 is sufficient.

FC1

3

Analog ground for the amplifiers. A 1.0

µF capacitor at this pin (with a

5.0

µF capacitor at Pin 2) provides (typically) 52dB of power supply

rejection. Turn-on time of the circuit is affected by the capacitor on this

pin. This pin can be used as an alternate input.

4

Amplifier input. This input capacitor and resistor set low frequency rolloff

and input impedance. The feedback resistor is connected to this pin and

5

Amplifier Output #1. The dc level is

6

DC supply voltage (+2V to +16V) is applied to this pin.

GND

7

Ground pin for the entire circuit.

8

Amplifier Output #2. This signal is equal in amplitude, but 180°