LA76832N datasheet(10/39 Pages) SANYO

部品番号	LA76832N

部品情報	Monolithic Linear IC I2C Bus Control IC

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メーカー	SANYO [Sanyo Semicon Device]

ホームページ	https://www.sanyo-av.com/us/

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10 / 39 page

LA76832N

No.0069-10/39

Audio Block Input Signals and Test Conditions

Unless otherwise specified, the following conditions apply when each measurement is made.

1. Bus control condition : AUDIO. MUTE = ”0”, AUDIO. SW = ”1”, VOL. FIL = ”0” , SIF. SYS = ”00”,

IF. AGC. SW = ”1”

2. Input 4.5MHz, 90dB

µ and CW at pin 54.

3. Enter an input signal from pin 51.

Parameter

Symbol

Test

point

Input

signal

Test method

Bus conditions

Maximum gain

AGMAX

1

1kHz, CW

500mVrms

Measure the 1kHz component (V1 : mVrms)

at the pin 1 and calculate as follows :

AGMAX = 20Log (V1/500) [dB]

VOLUME =

"1111111"

Variable range

ARANGE

1

1kHz, CW

500mVrms

Measure the 1kHz component (V2 : mVrms)

at the pin 1 and calculate as follows :

ARANGE = 20Log (V1/V2) [dB]

VOLUME =

"0000000"

Frequency characteristics

AF

1

20kHz, CW

500mVrms

Measure the 20kHz component (V3 : mVrms)

at the pin 1 and calculate as follows :

AF = 20Log (V3/V1) [dB]

VOLUME =

"1111111"

Mute

AMUTE

1

20kHz, CW

500mVrms

Measure the 20kHz component (V4 : mVrms)

at the pin 1 and calculate as follows :

AMUTE = 20Log (V3/V4) [dB]

VOLUME =

"1111111"

AUDIO.MUTE = ”1”

Distortion

ATHD

1

1kHz, CW

500mVrms

Measure the distortion of the 1kHz component at

the pin 1.

VOLUME =

"1111111"

S/N

ASN

1

No signal

Measure the noise level (DIN AUDIO, V5 :

mVrms) at the pin 1 and calculate as follows :

ASN = 20Log (V1/V5) [dB]

VOLUME =

"1111111"

Crosstalk

ACT

1

1kHz, CW

500mVrms

Measure the 1kHz component (V6 : mVrms) at

the pin 1 and calculate as follows :

ACT = 20Log (V1/V6) [dB]

VOLUME =

"1111111"

AUDIO. SW = "0"

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