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參數(shù)資料
| 型號： | HA12219 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processor for Cassette Deck |
| 中文描述： | 音頻信號處理器卡座 |
| 文件頁數(shù)： | 9/29頁 |
| 文件大?。?/td> | 169K |
| 代理商： | HA12219 |
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HA12219NT
Rev.2, Jul. 1998, page 9 of 29
Level Block Diagram
The gain establishment of PB-EQ considers PB output level
{(external AMP+PB AMP <HA12136A>) = 580 mV (Dolby Level)} like figure 3 as the target.
Regarding REC-EQ adjust the gain in front of input to this IC.
Similarly to PB, it consider Dolby level as a standard. And R1 needs the value more than 5.6 k
.
Because mode establishment resistances are built-in, REC-EQ frequency characteristics are respectively
fixed value.
In case the change of the frequency characteristics are necessary, please inquire the responsible agent
because the adjustment of resistors is necessary.
0.6 mV
63.6 mV
580 mV
(Dolby level)
26 dB
HA12136A
Dolby IC
PB-EQ
40.5 dB
Figure 3 PB Level Block Diagram (120
μ
s, 1 kHz)
相關PDF資料 |
PDF描述 |
|---|---|
| HA12219NT | Audio Signal Processor for Cassette Deck |
| HA12220 | CD-ROM Drive Head Amplifier IC |
| HA12220F | CD-ROM Drive Head Amplifier IC |
| HA12226 | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
| HA12227F | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HA12219NT | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck |
| HA12220 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CD-ROM Drive Head Amplifier IC |
| HA12220F | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CD-ROM Drive Head Amplifier IC |
| HA12221F | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Audio Signal Processor for Car Deck (Decode only Dolby B type NR with PB Amp.) |
| HA12222F | 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.) |
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