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參數(shù)資料
| 型號： | HA12170NT |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dolby B- and C-Type Noise Reduction System |
| 中文描述： | 杜比B和C型降噪系統(tǒng) |
| 文件頁數(shù)： | 60/63頁 |
| 文件大?。?/td> | 392K |
| 代理商： | HA12170NT |
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HA12141NT, HA12142NT, HA12170NT, HA12161FP, HA12162FP
Rev.3, Jun. 1999, page 60 of 63
HA12134A/5A/6A (Dolby B NR)
R
22 k
C
19
2200 p
R
17
560
C
17
2200 p
C
10
0.1
μ
C
16
0.1
μ
C
18
C
9
2.2
μ
R
10 k
PB OUT
(L)
2200 p
AUX 2
AUX 1
to V
R
8
22 k
R
9
18 k
15
16
17
18
19
20
21
22
23
24
25
26
27
28
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
14
13
12
11
10
9
8
7
6
5
4
3
2
1
HA12161FP
(Dolby B-C NR)
C
14
2200 p
C
5
0.1
μ
C
15
0.1
μ
R
19
560
C
21
2200 p
R
18
22 k
C
20
2200 p
C
6
2.2
μ
R
4
10 k
PB OUT
(R)
C
11
0.47
μ
+
R
10
10 k
PB IN
(L)
C
0.47
μ
R
5.1 k
C/B/OFF
OFF
R
2
10 k
C
100
μ
C
1
0.47
μ
R
1
5.1 k
PB IN
(R)
C
2
0.47
μ
C
R
3
22 k
C
13
22
μ
C
4
1
μ
+
+
+
+
+
+
+
+
AUX IN
(L)
AUX IN
(R)
B
PB
V
Note: C , C = 0.22
μ
F with HA12134A Series
Figure 3 Application of HA12161FP/162FP
We show such application in figure 3. In this application there is 3dB difference between mode AUX1
and mode AUX2 of controlled terminal’s pin 24.
Another application is show in figure 4. It is put in filter circuit between pin 6 or 23 and pin 7 or 22.
For example AUX1 mode is AM tuner input and AUX2 mode is FM tuner input respectivily.
AUX2
AUX1
3 dB Attenuator
Internal of IC
Filter
6
7
+
+
—
—
Figure 4 Application of AUX Mode
相關PDF資料 |
PDF描述 |
|---|---|
| HA12141 | Dolby B- and C-Type Noise Reduction System |
| HA12173 | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) |
| HA12174 | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) |
| HA12175 | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) |
| HA12177 | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B/C-type NR with PB Amp) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HA12173 | 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/C-type NR with PB Amp) |
| HA12173SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HA12174 | 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/C-type NR with PB Amp) |
| HA12175 | 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/C-type NR with PB Amp) |
| HA12177 | 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/C-type NR with PB Amp) |
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