參數(shù)資料
型號: HA12228F
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: 音頻信號處理器。為汽車甲板(只解碼杜比B型鉛放大器星期日)
文件頁數(shù): 15/51頁
文件大?。?/td> 304K
代理商: HA12228F
HA12228F/HA12229F
Rev.2, Dec. 2000, page 15 of 51
The Tolerances of External Components for Dolby NR
(Only HA12228F)
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(R)
HA12228F
5
R10
18k
±
2%
BIAS
C14
0.1
μ
F
±
10%
8
C7
0.1
μ
F
±
10%
DET(L)
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
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.
Note:
ref
EQOUT
+
HA12228F
NFI
SG
FIN
1000 p
AC VM
wait DIN/AUDIO
0.01
μ
M-OUT
180
270 k
13 k
Figure 7 Test Circuit
相關(guān)PDF資料
PDF描述
HA12229F Audio Signal Processor for Car Deck(Decode only Dolby B-type NR with PB Amp.)
HA12230 Audio Signal Processor for Cassette Deck
HA12230NT Audio Signal Processor for Cassette Deck
HA12231 Audio Signal Processor for Car Deck (PB 1 Chip)
HA12231FP Audio Signal Processor for Car Deck (PB 1 Chip)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA12228F/HA12229F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HA12229F 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.)
HA12230 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck
HA12230NT 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck
HA12231 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Car Deck (PB 1 Chip)