LA7286 Просмотр технического описания (PDF) - SANYO -> Panasonic

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Компоненты Описание

производитель

LA7286

VCR Audio Signal Recording and Playback Processor

SANYO -> Panasonic 

Pin Functions

Pin No.

Function name

Recording bias

1

automatic control

output

Head switch

2

(high withstand

voltage)

3

GND

4

EQ AMP input

LA7286

Unit (resistance: Ω)

Internal circuit for pin

Description of function

EE, PB → off

REC → control voltage

EE, PB → on

REC → off

On resistance →10 Ω (typ)

Withstand voltage when off → ±45 V

(f = 80 kHz)

GND for pin 2 head switch and

Equalizer Amplifier only

Input impedance for playback signal

input from head → 120 kΩ (typ)

5

EQ switch 1

6

EQ AMP NFB

7

GND

Switches the Playback Equalizer

Amplifier high-region frequency

voltage gain.

LP, SP → on

EP → off

On resistance → 20 Ω (typ)

Equalizer Amplifier negative

feedback pin

GND for all circuit blocks except the

pin 2 head switch and Equalizer

Amplifier

Continued on next page.

No.4750-6/10

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