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參數(shù)資料
| 型號(hào)： | HA12203 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
| 中文描述： | 音頻信號(hào)處理器卡座（杜比B型錄音系統(tǒng)星期日） |
| 文件頁(yè)數(shù)： | 11/97頁(yè) |
| 文件大小： | 687K |
| 代理商： | HA12203 |
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HA12203NT/HA12204NT
Rev.3, Jun. 1999, page 11 of 97
Input Block Diagram and Level Diagram
AIN
BIN
RECOUT
300mVrms
300mVrms
REC
PASS
300mVrms
300mVrms
21.3dB
0dB
PBOUT
580mVrms
RIN
42.4mVrms
The each level shown above is typical value
when offering PBOUT level to PBOUT pin.
HA12204NT is not built-in Dolby noise reduction system.
25.9mVrms
C2
0.0047
μ
F
R4
15k
R3
12k
REC
PB
PB/REC,
PASS=0dB/17dB
PASS
PB/REC,
PB=5.7dB/5.7dB
PB
MS
REF
70
μ
s
FLAT
(120
μ
)
DOLBY
B-NR
Figure 2 Input Block Diagram
PB Equalizer
By switching logical input level of 13 pin (for Ain) and 15 pin (for Bin), you can equalize corresponding to
tape position at play back mode.
With the capacity C2 capacitance that we showed for figure 2 70
μ
s by the way figure seem to 3 they are
decided.
Gv
t1 = C2
(12k + 15k)
t2 = C2
15k
t1
t2
f
Figure 3 Frequency Characteristic of PB Equalizer
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| HA12203NT | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA12203NT | 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) |
| HA12203NT/HA12204NT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HA12204NT | 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) |
| HA12206 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck |
| HA12206NT | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck |
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