HA12211 PDF даташит
Спецификация HA12211 изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «Audio Signal Processor for Cassette Deck (Deck 1 Chip)». |
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Детали детали
Номер произв | HA12211 |
Описание | Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
Производители | Hitachi Semiconductor |
логотип |
30 Pages
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HA12211NT
Audio Signal Processor for Cassette Deck (Deck 1 Chip)
ADE-207-223A (Z)
2nd. Edition
June 1997
Description
HA12211NT is silicon monolithic bipolar IC providing REC equalizer system, PB equalizer system and
each electronic control switch in one chip.
Functions
• PB equalizer × 2 channel
• REC equalizer × 2 channel
• Each electronical control switch to change equalizer characteristics
• REC mute
• REC head return switch
Features
• REC equalizer is very small number of external parts.(4 types of frequency characteristics built-in)
• PB equalizer built-in. (A/B input changing system, 4 types of frequency characteristics)
• Independent PB sensitivity for A deck, B deck.
• Normal-speed/high-speed, normal tape/chrome tape 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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HA12211NT
Pin Description, Equivalent Circuit (VCC = 10.5V, Vref = 5.25V, 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
V
3 RECOUT (R)
4 REC-RETURN V = Vref
V’ = Vref
GND
VCC REC Return
I
V
5 pin, 6 pin
5 PB-IN B (L)
6 PB-IN B (R)
7 VREF
V = Vref
V’ = VCC / 2
I
GND
10k
4 V’
PB B Deck input
VCC Reference
V V’
10k
GND
8
PB-IN A(L)
V = Vref
VCC PB A Deck input
9 PB-IN A(R)
V
Rev.2, Jun. 1997, page 2 of 34
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HA12211NT
Pin Description, Equivalent Circuit (VCC = 10.5V, Vref = 5.25V, Ta = 25°C, No signal,
The value in the table show typical value.) (cont)
Pin No. Pin Name
10 PB-NF (L)
Note
V = Vref
Equivalent Circuit
VCC
Pin Description
PB EQ Feed back
V
11 PB-NF (R)
12 PB-EQ (L) V = Vref
139k
NAB Output
V
13 PB-EQ (R)
14
PB-Cal A(L)
V = Vref
15 PB-Cal A(R)
16 PB-Cal B(R)
17 PB-Cal B(L)
26 AUX (R)
V = Vref
GND
VCC
Vref 7
10k
V
VCC
Feed back input
for gain
adjustment
REC-EQ input
27 AUX (L)
28 TAPE (R)
29 TAPE (L)
100k
Vref 7
V
Rev.2, Jun. 1997, page 3 of 34
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Номер в каталоге | Описание | Производители |
HA12211 | Audio Signal Processor for Cassette Deck (Deck 1 Chip) | Hitachi Semiconductor |
HA12211NT | Audio Signal Processor for Cassette Deck (Deck 1 Chip) | Hitachi Semiconductor |
HA12212F | Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) | Hitachi Semiconductor |
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