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參數(shù)資料
| 型號： | HA12203 |
| 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)： | 15/97頁 |
| 文件大?。?/td> | 687K |
| 代理商： | HA12203 |
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HA12203NT/HA12204NT
Rev.3, Jun. 1999, page 15 of 97
REC Equalizer
The outlines of REC Equalizing frequency characteristics are shown by figure 10. Those peak level can be
set up by supplying voltage. (0 V to 5 V, GND = 0 V) to 30pin (GPCAL).
And whole band gain can be set up by supplying voltage (0 V to 5 V, GND = 0 V) to 31pin (RECCAL).
Both setting up range are ± 4.5dB. In case that you don't need setting up, 30 pin, 31pin should be open
bias.
Note:
Depending on the employed REC/PB head and test tape characteristics, there is a rare case that the
REC-EQ characteristics of this LSI can not be matched to the required characteristics because of
built-in resistors which determined the REC-EQ parameters in this care, please inquire the
responsible agent because of the adjustment of built-in resistor is necessary.
Since an output pin and an input pin for REC-EQ are adjacent, it will easily oscillate if patterns run
abreast.
RECCAL
GPCAL
Frequency (Hz)
G
Figure 10 Frequency Characteristics of REC Equalizer
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| HA12203NT | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
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| HA12206 | Audio Signal Processor for Cassette Deck |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HA12203NT | 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) |
| HA12203NT/HA12204NT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HA12204NT | 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) |
| HA12206 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck |
| HA12206NT | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck |
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