HA12206 PDF даташит
Спецификация HA12206 изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «Audio Signal Processor for Cassette Deck». |
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Детали детали
Номер произв | HA12206 |
Описание | Audio Signal Processor for Cassette Deck |
Производители | Hitachi Semiconductor |
логотип |
30 Pages
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HA12206NT
Audio Signal Processor for Cassette Deck
ADE-207-198B (Z)
3rd Edition
Jun. 1999
Description
HA12206NT is silicon monolithic bipolar IC providing music sensor system, ALC, REC equalizer system
and each electronic control switch in one chip.
Functions
• REC equalizer × 2 channel
• Line Amp.
× 2 channel
• ALC (Automatic Level Control)
• MS (Music Sensor)
• Each electronic control switch to change REC equalizer, bias, etc.
• REC mute
Features
• REC equalizer is very small number of external parts, built-in 2 types of frequency characteristics.
• Correspondence with normal position (TYPE I) / high position (TYPE II).
• TYPE I / TYPE II and PB equalizer fully electronic control switching built-in.
• Controllable from direct micro-computer output.
• Available to reduce substrate-area because of high integration and small external parts.
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HA12206NT
Pin Description, Equivalent Circuit (VCC = 7.0V, VEE = –7.0V, Ta = 25°C, No signal,
The value in the table show typical value.)
Pin No. Pin Name
2 PB-Ain (R)
Note
V=0
Equivalent Circuit
Pin Description
A Deck PB input
29 PB-Ain (L)
4 PB-Bin (R)
27 PB-Bin (L)
5 REC-in (R)
26 REC-in (L)
9 EQ-in (R)
22 EQ-in (L)
12 MIMS
3 AB out (R) V = 0
V
100k
14.9k
10.6k
V
B Deck PB input
REC input
Equalizer input
MS Gain control
Time constant for
NAB standard
28 AB out (L)
6
ATT (R)
V=0
25 ATT (L)
7 RPOUT (R)
Variable
impedance for
V attenuation
VCC REC or PB output
24 RPOUT (L)
VEE
Rev.3, Jun. 1999, page 2 of 32
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HA12206NT
Pin Description, Equivalent Circuit (VCC = 7.0V, VEE = –7.0V, Ta = 25°C, No signal,
The value in the table show typical value.) (cont)
Pin No. Pin Name
8 ADD in (R)
Note
Equivalent Circuit
100k
23
100k
100k
Pin Description
Adder input
23 ADD in (L)
10 EQOUT (R) V = 0V
8
100k
100k
Equalizer output
21 EQOUT (L)
11 IREF
V = 1.2V
13
DET MS
V = VCC – 4.2V
100k
V
V
V
Equalizer
reference current
input
Time constant for
rectifier
15 DET ALC V = 2.3V
16 MS
MS output
Rev.3, Jun. 1999, page 3 of 32
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