HA12193F Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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Компоненты Описание

производитель

HA12193F

Audio Signal Processor for Car Deck (Decode only Dolby B-type NR with PB Amp.)

Hitachi -> Renesas Electronics 

HA12192F/HA12197F/HA12212F Series

Input Block Diagram and Level Diagram

R6

5.1kΩ

R5

5.1kΩ

R2

330kΩ

R1

180Ω

R4

12kΩ

R3

C1 18kΩ

0.01µF

PBOUT Level

HA12192F/HA12197F : 300mVrms (−8.2dBs)

HA12193F/HA12198F : 387.5mVrms (−6.0dBs)

HA12194F/HA12199F : 450mVrms (−4.7dBs)

C2

0.1µF

EQ OUT

M-OUT

DIN

30mVrms

(−28.2dBs)

EQ Amp.

NFI

−

RIN

VREF

+

0.6mVrms

(−62.2dBs)

Input Amp.

+

−

NR circuit*1

PBOUT

FIN

Note: 1. HA12197F series is not built-in Dolby B-NR.

The each level shown above is typical value

when offering PBOUT level to PBOUT pin.

(EQ Amp. GV = 40dB, f=1kHz)

Figure 3 Input Block Diagram

Adjustment of Playback Dolby Level

After replace R5 and R6 with a half-fix volume of 10kΩ, adjust playback Dolby level.

Rev.5, Jun. 1999, page 12 of 89

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