MC34119

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

2 of 8

www.unisonic.com.tw

QW-R107-038,E

PIN CONFIGURATION

IN

GND

OUT1

1

2

3

4

8

7

5

6

IN

+

MUTE

RR

OUT2

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 “HIGH” (2V to Vcc), the IC is disabled. If Mute is open,

that is equivalent to a logic “LOW”.

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 Amplifier output 1. The DC level is about (Vcc~0.7V)/2.

6

Vcc

DC supply voltage is applied to this pin(Vcc=2~16V).

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.