LA3161 Stereo Preamplifier
LA3161 Stereo Preamplifier is an integrated 2 channel pre-amplifier intended for car stereo applications. The LA3161 has a built-in voltage regulator which plays a great role in improving ripple rejection. The IC requires the minimum number of external parts and the noise level is very low. The IC LA316 has the high input impedance (around 100K) and is available in an 8 pin SIL package.
LA3161 Stereo Preamplifier Circuit
In the LA3161 Stereo Preamplifier circuit, both of the built-in amplifier section is used. Capacitors C8 and C9 are input coupling capacitors. Capacitors C3 & C6 are noise filter capacitors. The lower cut-off frequency depends on the value of C3 and C6 network comprising of components R1, R2 & C1 defines the frequency characteristics of the left channel and the network consisting of R3, R4 &C2 defines the frequency characteristics of the right channel. C4 and C5 are output coupling capacitors. C7 is the power supply filter capacitor and it must be connected as close as possible to the power input pin (pin 4) of the IC.
LA3161 Preamplifier Datasheet Pdf:
| Part | LA3161 |
| Description | 2-Channel Preamplifier |
| Feature | LA3161; LA3161 Monolithic Linear IC 2-Channel Preamplifier for Car Stereo. |
| Manufacture | ON Semiconductor. |
| Datasheet |
LA3161 Preamplifier Applications:
- It is used for car stereo preamplifier
- La3161 used as stereo tape head preamplifier
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