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

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Компоненты Описание

производитель

LA7286

VCR Audio Signal Recording and Playback Processor

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Function name

18

Recording bias

automatic control filter

19

Supply voltage (VCC)

20

Ripple filter

21

EP/LP/SP Control

22

MUTE Control

LA7286

Unit (resistance: Ω)

Internal circuit for pin

Description of function

Wave detection is performed when

connected to GND through a

capacitor.

Power supply

of each

circuit block

VCC max = 14 V

VCC = 8.5 V to 12.5 V

Ripple rejection is performed when

connected to GND through an

electrolytic capacitor for the filter.

When the voltage on

pin 21 is 3.6 V to 6.0 V: EP;

when 1.8 V to 2.6 V: LP;

when 0 V to 1.0 V: SP

Switch On Pin Number

REC PB

EP 16 16

LP 16, 5 5

SP 5 5

When the voltage on

pin 22 is 2.5 V to 6.0 V: MUTE on;

when 0 V to 1.5 V: MUTE off

23

EE/PB Control

24

REC/EE Control

When the voltage on

pin 23 is 3.0 V to 6.0 V: EE;

when 0 V to 1.0 V: PB

When the voltage on

pin 24 is 3.0 V to 6.0 V: REC;

when 0V to 1.0 V: EE

However, REC mode is entered only

when the voltage on pin 23 is 3.0 V

to 6.0 V.

No.4750-9/10

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