LC75055PE-6158-H Просмотр технического описания (PDF) - ON Semiconductor

Номер в каталоге

Компоненты Описание

производитель

LC75055PE-6158-H

Car Audio DSP

ON Semiconductor 

LC75055PE

(9) Analog audio input

LC75055 has 2 ADCs (main/sub) for stereo sounds and 2 ADCs (INTA/INTB) for interruption monaural voices as

analog audio in. In addition, a source select circuitry with gain setting is implemented in each ADC.

As stereo input, one of single end input or op-amp input or the differential input can be chosen.

As monaural voice inputting, one of single end input or the differential input can be chosen.

1) Main and Sub ADC input

In audio main/sub ADC, a source selector of the single end input/op-amp input/differential input, and the Amp that

can set a gain for each input individually are implemented. The gain set point of the main/sub is settable every each

input source. Each amplifier gain is settable independently in the range of -12dB to +19dB (1dB step).

In addition, please do mute processing because a noise may occur when gain setting is changed. About the setting

command, it is shown on software specifications.

single end input

differential input

Lch

Rch

Lch

Rch

Single end: 3

Differential: 1

AIN1LP

AIN1RN

AIN2L

AIN1LN

AIN1RP

AIN2R

AIN3LP, AIN3LN

AIN3RP, AIN3RN

Single end: 1

Differential: 2

AIN2L

AIN2R

AIN1LP, AIN1LN

AIN3LP, AIN3LN

AIN1RP, AIN1RN

AIN3RP, AIN3RN

About the method of these setting, it is appointed on software specifications.

(i) Single end input: 3, differential input: 1

R

Single end (AIN4)

L

R

Single end (AIN5)

L

Single end (AIN2)

Differential (AIN3)

AIN1RP

AIN1RN

AIN1LN

AIN1LP

AIN2R

AIN2L

AIN3RO

AIN3RN

AIN3RP

AIN3LP

AIN3LN

AIN3LO

(ii) Single end input: 1, differential input: 2

Differential (AIN1)

Single end (AIN2)

Differential (AIN3)

AIN1RP

AIN1RN

AIN1LN

AIN1LP

AIN2R

AIN2L

AIN3RO

AIN3RN

AIN3RP

AIN3LP

AIN3LN

AIN3LO

No.A2168-18/26

Share Link: