MC34119

LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD

2 of 8

www.unisonic.com.tw

QW-R107-038.K

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M ARK I N G

DIP-8

SOP-8

TSSOP-8

DFN3030-8

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PI N CON FI GU RAT I ON

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PI N DESCRI PT I ON

PIN NO.

PIN NAME

DESCRIPTION

1

Mute

This pin can be used to power down the IC to converse power, or for muting, or both. When

at a logic “LOW” (less than 0.8V), the IC is enabled for normal operation. When at a logic

2

Ripple

Rejection

A capacitor at this pin increase power supply rejection, and affects turn-on time. This pin

can be left open if the capacitor at pin 3 is sufficient.

3

Input(+)

Analog Ground for the amplifiers. A 1

μF capacitor at this pin (with a 5μF capacitor at pin 2)

provides 52dB( typ) 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 alternative input.

4

Input(-)

Amplifier input. The input capacitor and resistor set low frequency roll-off and input

impedance. The feedback resistor is connected between this pin and output 1.

5

Output 1

6

7

GND

Ground pin.

8

Output 2

Amplifier output 2. This signal is equal in amplitude, but 180°out of phase with that output 1,

the DC level is about (Vcc~0.7V)/2.