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參數(shù)資料
| 型號： | HA12209 |
| 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： | 音頻信號處理器卡座（杜比B型錄音系統(tǒng)星期日） |
| 文件頁數(shù)： | 13/49頁 |
| 文件大?。?/td> | 279K |
| 代理商： | HA12209 |
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HA12209F
Rev.2, Jun. 1999, page 13 of 49
External components shown figure 8 gives frequency response to take 6dB boost. And cut off frequency
can request it, by lower formulas.
Gv
f1
f2
f
f1 =
[Hz]
1
2
π
·
CEX3
·
(REX3 + R0)
1
2
π
·
CEX3
·
REX3
f2 =
[Hz]
R0 =
[
]
REX1
·
REX2
REX1 + REX2
Figure 9 Frequency Characteristic of Low-Boost
Bias Switch
This series built-in DC voltage generator for bias oscillator and its bias switches.
External resistor R8, R10 which corresponded with tape positions and bias out voltage are relater with
below.
Vbias =
×
(VCC
–
0.7) [V]
R9
(R10 or R8) + R9
Bias switch follows to a logic of 14 pin (B 120/70).
Note:
A current that flows at bias out pin, please use it less than 5mA.
BIAS (N)
BIAS (C)
R9
GND
Vbias
R10
R8
26
25
Figure 10 External Components of Bias Block
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| HA12209F | 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) |
| HA12211 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| HA12211NT | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| HA12212F | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.) |
| HA12215 | 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) |
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