LA74303FN Просмотр технического описания (PDF) - SANYO -> Panasonic

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LA74303FN

Audio Interface for DSC

SANYO -> Panasonic 

Continued from preceding page.

Pin No. Pin Name DC voltage

AC voltage

9

VCCA

3.0V

10

PB IN

1.64V Reference input level

=-15dBV

LA74303FN

Description of functions

Power pin for analog signal part

PB input pin

Maximum input level

= -5dBV

In analog input mode

= 3.465Vpp

In ΔΣ input mode

11

A GND

0V

12

REC OUT

1.50V At PB reference input

Output level = -15dBV

GND pin for analog signal part

REC output pin

Equivalent circuit diagram in pin

VCCA(=3.0V)

25kΩ 15kΩ 10kΩ

10

VREF

VCCA(=3.0V)

13

ALC DET

ALC detection pin

500Ω

20kΩ

12

3kΩ

VREF

VCCA(=3.0V)

1kΩ

13

500Ω

14

ALC IN

1.64V At MIC reference input

ALC input pin

Output level = -49dBV

Max input level

=-10dBV

15

MIC OUT

1.6V

At MIC reference input

Output level = -49dBV

MIC output pin

VCCA(=3.0V)

500Ω

14

50kΩ

VREF

VCCA(=3.0V)

500Ω

9.7kΩ

15

1kΩ

VREF

Continued on next page.

No.A1181-11/18

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