MC34119_12 Datasheet, PDF (2/8 Pages) Unisonic Technologies – LOW POWER AUDIO AMPLIFIER

MC34119
„ PIN CONFIGURATION
LINEAR INTEGRATED CIRCUIT
„ PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
PIN NAME
DESCRIPTION
This pin can be used to power down the IC to converse power, or for muting, or both. When
Mute at a logic “LOW” (less than 0.8V), the IC is enabled for normal operation. When at a logic
“HIGH” (2V to V_CC), the IC is disabled. If Mute is open, that is equivalent to a logic “LOW”.
Ripple A capacitor at this pin increase power supply rejection, and affects turn-on time. This pin
Rejection can be left open if the capacitor at pin 3 is sufficient.
Analog Ground for the amplifiers. A 1μF capacitor at this pin (with a 5μF capacitor at pin 2)
Input(+) 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.
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.
Output 1 Amplifier output 1. The DC level is about (V_CC~0.7V)/2.
V_CC
GND
DC supply voltage is applied to this pin (V_CC=2~16V).
Ground pin.
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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