參數(shù)資料
型號(hào)： HA12223F
廠商： Hitachi,Ltd.
英文描述： Audio Signal Processor for Car Deck(Decode only Dolby B type NR with PB Amp.)
中文描述： 音頻信號(hào)處理器。為汽車甲板（解碼杜比乙只用PB安培型降噪）
文件頁(yè)數(shù)： 13/53頁(yè)
文件大小： 343K
代理商： HA12223F
HA12216F/HA12221F Series
Rev.6, Dec. 2000, page 13 of 53
The Tolerances of External Components for Dolby NR
(Only HA12216F Series)
For adequate Dolby NR tracking response, take external components shown below.
Also, leak is small capacity, and please employ a good quality object.
23
DET (L)
HA12216F Series
4
R8
18k
±
2%
BIAS
C10
0.1
μ
F
±
10%
8
C4
0.1
μ
F
±
10%
DET (R)
Figure 6 Tolerance of External Components
Countermeasure of a Cellular Phone Noise
This IC have reinforced a cellular phone noise countermeasure, to show it hereinafter.
However, it is presumed that this effect change it greatly, by a mount set.
Please sufficiently examine an arrangement of positions, shield method, wiring pattern, in order to oftain a
maximum effect.
A high terminal of a noise sensitivity of this IC is FIN, RIN, NFI and RIP.
Test condition
Use for SG by cellular radio for an evaluation use.
SG output mode
Note:
PDC system, burst
UP Tch (Transmission mode on the side of a movement machine)
To evaluate a capacitor of 1000 pF as connecting with it directly.
About EQOUT output, what you measure through DIN/AUDIO filter.
ref
EQOUT
+
HA12216F
NFI
SG
FIN
330k
1000p
12k
AC VM
wait DIN/AUDIO
0.01
μ
680
180
Figure 7 Test Circuit
相關(guān)PDF資料
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HA12219 Audio Signal Processor for Cassette Deck
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HA12220F CD-ROM Drive Head Amplifier IC
HA12226 Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA12226 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)
HA12226F 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)
HA12226F/HA12227F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HA12227F 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)
HA12228F 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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