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參數資料
| 型號： | HA12167FB |
| 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： | 23/73頁 |
| 文件大?。?/td> | 524K |
| 代理商： | HA12167FB |
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HA12167FB/HA12169FB
Rev.3, Jun. 1997, page 23 of 73
MPX ON/OFF Switch
MPX-OFF mode means that signal from input amp doesn’t go through the MPX filter, but signal goes
through the NR circuit after being attenuated 3 dB by internal resistor. Refer to figure 5. For not cause any
level difference between MPX-ON mode and MPX-OFF mode, it is requested to use MPX-filter which has
definitely 3 dB attenuated. And when applying other usage except figure 5,
take consideration to give bias voltage to NR-IN terminal by resistor or so on because internal of NR-IN
terminal has no bias resistor.
Application as for the Dubbing Cassette Deck
HA12167FB/HA12169FB series has unprocessor signal from recording out terminals during playback
mode. So, it is simply applied for dubbing cassette decks.
IA
6 k
14 k
MPX ON
MPX OFF
3 dB ATT
X 1
1.5 k
IA OUT
NR IN
TP
Vref
NR
processer
2.4 k
MPX
filter
5.6 k
10 mH
220 P
BIAS TRAP
Figure 5 MPX ON/OFF Switch Block Diagram
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| HA12170NT | Dolby B- and C-Type Noise Reduction System |
| HA12141 | Dolby B- and C-Type Noise Reduction System |
| HA12173 | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) |
| HA12174 | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| HA12170NT | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dolby B- and C-Type Noise Reduction System |
| HA12173 | 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) |
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