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參數(shù)資料
| 型號： | HA12211 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| 中文描述： | 音頻信號處理器卡座（甲板1片） |
| 文件頁數(shù)： | 8/34頁 |
| 文件大?。?/td> | 204K |
| 代理商： | HA12211 |
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HA12211NT
Rev.2, Jun. 1997, page 8 of 34
Operating Mode Control
This IC provides fully electronic switching circuits. And each operating mode control is controlled by
parallel data (DC voltage).
Table 2
Threshold Voltage (Vth)
Pin No.
Lo
Mid
Hi
Unit
Test Condition
20, 21, 22, 23
0.0 to 2.5
—
4.0 to V
CC
V
Input Pin
Measure
V
24
Note:
0.0 to 1.0
2.0 to 3.0
4.0 to V
CC
V
1. 20 to 23 pins are pulled down Lo level, and 24 pin is pulled to Mid level by the inside resistor
100k
.
2. Over shoot level and under shoot level of input signal must be the standardized.
(High: V
CC
, Low: –0.2V)
Block Diagram
This IC can be constructed for simple system which has little external parts by used the head serving both
as Recording and Play back because of REC return SW built-in.
With output Hi-Z of REC-EQ and input muting, this IC is realized not only REC mute attenuation
sufficiently but reducing pop noise in REC muting.
Note:
Referring to Parallel Data Format also.
PB IN (A)
PB IN (B)
R1
RECOUT
Hi-Z SW
RETURN SW
B
A
B head
A head
Vref
REC - EQ
C9
C11
Tape IN
AUX IN
R7
C7
Normal Speed
Normal Tape
PB - A, Tape IN Select
R18
R9
PBOUT
+
–
+
–
–
+
4
2
5
8
10
12
14
17
19
27
29
Figure 2 Block Diagram (Lch)
相關PDF資料 |
PDF描述 |
|---|---|
| HA12211NT | Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| HA12215 | HEATSHRINK, 1/8" ALPHA, FIT 221 1/8 |
| HA12215F | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
| HA12217F | Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.) |
| HA12216F | Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HA12211NT | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| HA12212F | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) |
| HA12215 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
| HA12215F | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
| HA12216F | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.) |
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