LA4166M Ver la hoja de datos (PDF) - SANYO -> Panasonic

Número de pieza

componentes Descripción

Fabricante

LA4166M

Recording and Playback System for Microcassette Players

SANYO -> Panasonic 

Typical Application

LA4166M

Figure 1. Application circuit

Note the external components are used to determine the

LA4166M operating characteristics. For example, C2

determines the playback equalization characteristic, R8

determines the preamplifier gain, C8 and R4 determine

the ALC attack and recovery times and C17 determines

the power supply ripple rejection. The ripple rejection

decreases as the capacitance C17 is decreased.

Other components are used to determine the overall cir-

cuit characteristics. For example, C1 and R1 determine

the recording current and C7 prevents output oscillations.

Note also that LA4166M internal components determine

other LA4166M characteristics. For example, the 2.2kΩ

PRE IN input resistor determines the ALC range, and

the 1kΩ and 30kΩ resistors at the power amplifier in-

verting input determine amplifier gain.

In addition, LED DRIVE should be left open when not

using the LED indicator function, the double-pole switch

that controls LED DRIVE is normally closed, the NC

pins should be left open, and the GND pins should be

tied to ground

No.3977–6/7

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