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| 型號(hào)： | HA12194F |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) |
| 中文描述： | 音頻信號(hào)處理器。為汽車(chē)甲板（只解碼杜比B型鉛放大器星期日） |
| 文件頁(yè)數(shù)： | 14/89頁(yè) |
| 文件大?。?/td> | 517K |
| 代理商： | HA12194F |
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HA12192F/HA12197F/HA12212F Series
Rev.5, Jun. 1999, page 14 of 89
Product
G
V
IA
20dB
ATT
G
V
IA + ATT
20dB
HA12192F series
0dB
HA12197F
20dB
0dB
20dB
HA12198F
22.2dB
–2.2dB
20dB
HA12199F
23.5dB
–3.5dB
20dB
1. Search mode (FF or REW)
G
V1
=G
V
IA+20log 1 +
90k
REX1
+ATT [dB]
f
1
=
1
2
π
· CEX1 · REX1
[Hz],
f
2
=25k [Hz]
2. Repeat mode
G
V2
=G
V
IA+20log 1 +Z
+ATT [dB],
Z=REX1 +REX2
·
REX2
f
3
=
1
2
π
·
CEX2
·
REX2
[Hz],
f
4
=25k [Hz]
G
V
IA: Input Amp. G
V
= 20dB
The sensitivity of music sensor (S) is computed by the formula mentioned below.
S=
–
G
V*1
–
20log130
* 2
30
* 3
=12.7
–
G
V
[dB]
Note: 1. Search mode: G
V1
, Repeat mode: G
V2
2. Standard level of DIN pin (Dolby level)
3. Standard sensing level of music sensor
Item
REX1, 2
CEX1, 2
G
V1, 2
33.5dB
f
1, 3
663Hz
f
2, 4
25kHz
S (one-side channel)
Search mode
24k
2.7k
0.01
μ
F
1
μ
F
–14.8dB
Repeat mode
Note:
51.6dB
58.9Hz
25kHz
–33.0dB
S is 6dB down in case of one-side channel. And this MS presented hysteresis lest MSOUT terminal
should turn over again Hi level or Lo level, in case of thresh S level constantly.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HA12197F | Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) |
| HA12198F | Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) |
| HA12199F | Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) |
| HA12203 | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
| HA12203NT | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA12197F | 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) |
| HA12198F | 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) |
| HA12199F | 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) |
| HA-121A | 制造商:NEL 制造商全稱(chēng):Nel Frequency Controls,inc 功能描述:TTL Compatible Enable/Disable |
| HA-121B | 制造商:NEL 制造商全稱(chēng):Nel Frequency Controls,inc 功能描述:TTL Compatible Enable/Disable |
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