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參數(shù)資料
| 型號： | HA12207NT |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 150000 SYSTEM GATE 1.8 VOLT FPGA - NOT RECOMMENDED for NEW DESIGN |
| 中文描述： | 音頻信號處理器卡座 |
| 文件頁數(shù)： | 9/27頁 |
| 文件大?。?/td> | 148K |
| 代理商： | HA12207NT |
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HA12207NT
Rev.3, Jun. 1999, page 9 of 27
Level Block Diagram
The gain establishment of PB-EQ considers PB output level {(external AMP+PB AMP)=300mV(Dolby
Level)} like figure 3 as the target.
Regarding REC-EQ adjust the gain in front of input to this IC.
The level diagram of 1kHz is shown figure 4. (Normal speed)
Similarly to PB, it consider Dolby level as a standard. And R1 needs the value more than 5.6k
.
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.
0.6mV
63.6mV
300mV
(Dolby level)
40.5dB
20dB
HA12134A
PB-EQ
Dolby IC
Figure 3 PB Level Block Diagram (Normal Speed, 1kHz)
相關PDF資料 |
PDF描述 |
|---|---|
| HA12209 | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
| HA12209F | Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System) |
| HA12211 | Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| HA12211NT | Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| HA12215 | HEATSHRINK, 1/8" ALPHA, FIT 221 1/8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HA12209 | 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) |
| 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.) |
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