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參數(shù)資料
| 型號(hào)： | HA12165 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp) |
| 中文描述： | 音頻信號(hào)處理器為汽車甲板和卡座（杜比B型鉛放大器星期日） |
| 文件頁(yè)數(shù)： | 20/66頁(yè) |
| 文件大?。?/td> | 578K |
| 代理商： | HA12165 |
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HA12163 Series
Rev.4, Jun. 1999, page 20 of 66
A. Normal mode
Gv1
=
20log 1
+
R27
R28
[dB]
f1
=
1
2
π
C14
100k[Hz],f2
=
25k[Hz]
B. 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.
C
30
10
A
S
=
20log
1
[dB]
A = MS AMP. gain (B dB)
C = The sensing level of music sensor
S = –7.3–B [dB]
S is 6 dB up in case of the both channels.
C = 130 mVrms (typ.)
8. Music Sensor Output (MS OUT)
As for the internal circuit of music sensor block, music sensor output pin is connected to the collector of
NPN Type directly, therefore, output level will be “high” when sensing no signal. And output level
will be “l(fā)ow” when sensing signal.
Connection with microcomputer, design I
L
at 1 mA typ.
I
L
=
DV
CC
–MSOUT
Lo
*
R
L
* MSOUT
Lo
: sensing signal (about 1 V)
Notes: 1. Supply voltage of MS OUT pin must be less than V
CC
voltage.
2. MS V
CC
pin and V
CC
pin are required the same voltage.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA12166F | 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-type NR with PB Amp) |
| HA12167FB | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| HA12167FB/HA12169FB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HA12169FB | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| HA-1217 | 制造商:NEL 制造商全稱:Nel Frequency Controls,inc 功能描述:TTL Compatible Enable/Disable |
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