HA12160 データシートの表示（PDF） - Hitachi -> Renesas Electronics

部品番号

コンポーネント説明

メーカー

HA12160

Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)

Hitachi -> Renesas Electronics 

HA12163 Series

7. The Sensitivity Adjustment of a Music Sensor

Adjusting MS AMP gain by external resistor, the sensitivity of music sensor can set up.

C14

VCC

R28

R27 0.01 µ

DVCC

R24

+ C13

R26

R25

330 k

0.33 µ

C28

IL

4700 p

TAI (L)

X1

MS

VREF

FFI NOI

MA MSI MS

OUT

DET

RL

L·R signal addition circuit

–6 dB

+

–

26 dB

LPF

25 kHz

+

–

MS AMP.

DET

MS OUT

D GND

Microcomputer

X1

TAI (R)

100 k

D GND

Figure 4 Music Sensor Block Diagram

Gv1

Gv

[dB]

Gv2

f1

f2

Normal speed

f3

f4

FF or REV

10

100

1k

10 k

25 k

100 k

f [Hz]

Figure 5 Frequency Response

Rev.4, Jun. 1999, page 19 of 66

Share Link: