參數(shù)資料
型號： HA12155NT
廠商： Hitachi,Ltd.
英文描述： Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
中文描述： 音頻信號處理器（杜比B / C型與錄音系統(tǒng)星期日的盒式收錄機(jī)）
文件頁數(shù)： 20/57頁
文件大?。?/td> 463K
代理商： HA12155NT
HA12155NT/HA12157NT
Rev.4, Jun. 1997, page 20 of 57
A deck
PB EQ
PB EQ
B deck
Compensation
of low
frequency
region
REC OUT
PBI
RPI
EQ IN
EQ OUT
VRI
REC IN
PB OUT
REC
PB
HA12155 / 7
Figure 6 Application for Dubbing Deck
Injector Current
HA12155NT/HA12157NT has logic circuit which is fabricated by I
required enough injector current. Injector current goes into from the INJ pin (pin 10) and external resistor
is required to connect to this pin for adequate current. The value of external resistor is obtained by using
following equations. And put them with ±10% tolerance value which is calculated. V
INJ
can allow to
connect to V
CC
shown below. Under the condition of high temperature, the mis-operation of logic is caused
by large injector current. Also, under the condition of low temperature, the stop of logic is caused by small
injector current. Therefore, pay attention to have good stability of V
INJ
.
2
L into IC. To operate this circuit, it is
R
INJ
=
V
INJ
–0.7
3.6
[k
] ---- Single supply
R
INJ
=
V
INJ
+
V
EE
–0.7
3.6
[k
] ---- Split supply
R
3.6 mA
V
HA12155 / 7
10
40
61
a) Single supply use
b) Split supply use
40
61
10
3.6 mA
HA12155 / 7
V
R
V
Figure 7 Injector Current Application
相關(guān)PDF資料
PDF描述
HA12157NT Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
HA12155 Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
HA12160 Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
HA12163 Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
HA12164 Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA12155NT/HA12157NT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HA12157NT 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Dolby B/C-type NR with Recording System)
HA12159 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FM Receiver Circuit
HA12160 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
HA12161FP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dolby B- and C-Type Noise Reduction System
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