HA12207 PDF даташит
Спецификация HA12207 изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «Audio Signal Processor for Cassette Deck». |
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Детали детали
Номер произв | HA12207 |
Описание | Audio Signal Processor for Cassette Deck |
Производители | Hitachi Semiconductor |
логотип |
27 Pages
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HA12207NT
Audio Signal Processor for Cassette Deck
ADE-207-197B (Z)
3rd Edition
Jun. 1999
Description
HA12207NT is silicon monolithic bipolar IC providing PB equalizer, REC equalizer system and each
electronic control switch in one chip.
Functions
• PB equalizer × 2 channel
• REC equalizer × 2 channel
• Each electronic control switch to change REC/PB etc.
• REC MUTE
• REC head return switch
Features
• REC equalizer is very small number of external parts, built-in 2 types of frequency characteristics.
• PB equalizer circuit built-in.
• REC /PB of high speed mode are possible with TYPE 1(Normal tape).
• Controllable from direct micro-computer output.
• Available to reduce substrate-area because of high integration and small external parts.
• As the pins arrangement resembles HA12185NT, it can design the board that is replaced with
HA12185NT.
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HA12207NT
Pin Description, Equivalent Circuit (VCC = 10.5V, Vref = 5.6V, Ta = 25°C, No signal,
The value in the table show typical value.)
Pin No.
1
2
Pin Name
V
CC
RECOUT (L)
Note
V=V
CC
V = Vref
Equivalent Circuit
Pin Description
V pin
CC
VCC REC-EQ output
3 RECOUT (R)
4 REC-RETURN V = Vref
V ’= Vref
GND
VCC REC return
I
V
5 pin, 6 pin
4 V’
I
5 PB-IN B (L)
6 PB-IN B (R)
GND
7 VREF
V = Vref
V’ = VCC / 2
+–
PB-IN
10k
PB B Deck input
Reference
VCC
V
8
PB-IN A (L)
V = Vref
10k
VCC
V'
GND
PB A deck input
9 PB-IN A (R)
V
Rev.3, Jun. 1999, page 2 of 27
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HA12207NT
Pin Description, Equivalent Circuit (VCC = 10.5V, Vref = 5.6V, Ta = 25°C, No signal,
The value in the table show typical value.)
Pin No. Pin Name
10 PB-NF (L)
Note
PB-IN = Vref
Equivalent Circuit
VCC
Pin Description
PB EQ feed back
PB-IN
11 PB-NF (R)
12
PB-EQ (L)
PBOUT = Vref
180
7
330k
NAB output
PBOUT
13 PB-EQ (R)
20
REC IN (R)
V = Vref
21 REC IN (L)
14
PBOUT (R)
V = Vref
GND
VCC
REC-EQ input
100k
Vref 7
V
VCC PB output
15 PBOUT (L)
GND
Rev.3, Jun. 1999, page 3 of 27
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