參數(shù)資料
型號(hào)： HA12211
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(hào)處理器卡座（甲板1片）
文件頁(yè)數(shù)： 9/34頁(yè)
文件大小： 204K
代理商： HA12211
HA12211NT
Rev.2, Jun. 1997, page 9 of 34
Level Diagram
It is the target that total play back output level is adjusted to 300mV; Dolby level, which the PB system
gain in all is included of external amplifier’s (Dolby IC etc.) as follows figure 3. Though A head
adjustment is independent of B, select the value of R9, R18 adequately.
Regarding REC-EQ adjust the gain in front of input to this IC.
The level diagram at 1kHz is shown by figure 4.
Note: 1. R1 needs the value more than 1kHz.
2. Depending on the employed REC/PB head and test tape characteristics, there is rare case that
the REC-EQ frequency characteristics of this IC can not be matched to the required
characteristics because of built-in resistors which determined the REC-EQ parameters in this
case, please inquire the responsible agent because of the adjustment of built-in resistors is
necessary.
0.6mV
11.3mV
23.9mV
300mV
(Dolby Level)
25.5dB
0 to 20.8dB
20dB
10k
100k
VR
Dolby IC
100k
VR = 11k
HA12134A
+
–
Figure 3 PB Level Diagram (Normal Speed, Normal Tape, 1kHz)
相關(guān)PDF資料
PDF描述
HA12211NT Audio Signal Processor for Cassette Deck (Deck 1 Chip)
HA12215 HEATSHRINK, 1/8" ALPHA, FIT 221 1/8
HA12215F Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
HA12217F Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.)
HA12216F Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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)
HA12215F 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)
HA12216F 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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