HA12215 Hitachi Semiconductor, HA12215 Datasheet - Page 63

• Manufacturer Part Number: HA12215
• Description: Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
• Manufacturer: Hitachi Semiconductor

10
8
6
4
2
0
2
5
f = 1kHz, V
RIN
0.01
1.0
0.1
TYPE I, IV
TYPE II
RECOUT, RIN = 192.8mVrms = 0dB
0
5
f = 1kHz, V
TYPE I,IV
(Norm tape, Metal tape)
S
ALC Total Harmonic Distortion vs. Input Level (1)
7.0V, Both channel input (L, Rch)
Input Level Vin (dB) RIN = 192.8mVrms = 0dB
Cal = 0V
Cal = 2.5V
Cal = 5V
0
5
ALC Operate Level vs. Input Level
S
= 7.0V
5
10
Input Level Vin (dB)
cal = 2.5V
cal = 2.5V
cal = 5V
cal = 5V
cal = 0V
cal = 0V
10
15
15
20
20
Vin
Rev.5, Oct. 1999, page 63 of 69
25
25
13k
R4
0dB = 192.8mVrms
0.1
30
C4
R3
2.2k
30
56
55
HA12215F
RIN
ALC
35