HA12206 View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

MFG CO.

HA12206

Audio Signal Processor for Cassette Deck

Hitachi -> Renesas Electronics 

HA12206NT

PB Equalizer

By switching logical input level of pin17 (for Ain) or pin18 (for Bin), you can equalize corresponding to

tape position at play back mode.

Frequency characteristics of high position (TYPE II) depends on capacitor C1 on the block diagram figure.

Figure 1 is shown by a motive of the NAB standard.

GV

τ1 = C1 • (10.6k+14.9k)

τ2 = C1 • 14.9k

f

τ1

τ2

Figure 1 Frequency Characteristics of PB Equalizer

Music Sensor

VCC

to ALC

0.33µ

330k

13

100k

C4 L

23

C4 R

8

100k

100k

100k

43p

100k

+

–

100k

MS

DET

D VCC

(5V)

22k

16

to ALC

LR addend stage

12

Detection stage Output stage

R5 68k

C5 2200p

Amplification stage

Figure 2 Music Sensor Block Diagram

Rev.3, Jun. 1999, page 11 of 32

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