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參數(shù)資料
| 型號： | HA12175 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) |
| 中文描述： | 音頻信號處理器（杜比B / C型與鉛放大器為汽車甲板上午和卡座） |
| 文件頁數(shù)： | 17/66頁 |
| 文件大?。?/td> | 1116K |
| 代理商： | HA12175 |
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HA12173 Series
Rev.1, Nov. 1992, page 17 of 66
f
1
f
2
f
4
f
3
1 k
100
10
10 k
25 k
100 k
f [Hz]
Gv1
Gv2
Gv
[dB]
FF or REV
Normal speed
Figure 5 Frequency Response
1. Normal mode
Gv1
=
20log 1
+
R27
R28
[dB]
f1
=
1
2
π
C14
100k[Hz],f2
=
25k[Hz]
2. FF or REW mode
Gv2
=
20log 1
+
R25
R26
[dB]
f3
=
1
2
π
C28
R26[Hz],f4
=
25k [Hz]
A standard level of TAI pin is 30 mVrms and the gain for TAI to MS AMP input is 10, therefore, the
other channel sensitivity of music sensor (S) is computed by the formula mentioned below.
S
=
20logC
30
1
10
A[dB]
A = MS AMP. gain (B dB)
S = –7.3–B [dB]
S is 6 dB up in case of the both channels.
C = The sensing level of music sensor
C = 130 mVrms (typ.)
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| HA12177 | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) |
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| HA12181FP | AM Radio Noise Reduction System |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HA12177 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) |
| HA12179F | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processer for Car Deck and Cassette Deck(Dolby B-type NR with PB Amp) |
| HA12181FP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:AM Radio Noise Reduction System |
| HA12187 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Bus Interface Driver/Receiver IC |
| HA12187DP-EL-E | 制造商:Renesas Electronics Corporation 功能描述:MCU - Trays |
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