MC34119_05 Datasheet, PDF (2/8 Pages) Unisonic Technologies – LOW POWER AUDIO AMPLIFIER

MC34119
„ PIN CONFIGURATION
MUTE 1
RR 2
IN ⁺ 3
IN
4
LINEAR INTEGRATED CIRCUIT
8 OUT2
7 GND
6
VCC
5 OUT1
PIN NAME
DESCRIPTION
This pin can be used to power down the IC to converse power, or for muting, or
1
Mute
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 A capacitor at this pin increase power supply rejection, and affects turn-on time.}
Rejection This pin 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
3 Input(+) ^{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.
Amplifier input. The input capacitor and resistor set low frequency roll-off and
4 Input(-) 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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R107-038,E