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參數(shù)資料
| 型號： | HA12204NT |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processor for Cassette Deck(音頻信號處理器) |
| 中文描述： | 音頻信號處理器卡座（音頻信號處理器） |
| 文件頁數(shù)： | 10/97頁 |
| 文件大?。?/td> | 579K |
| 代理商： | HA12204NT |
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HA12203NT/HA12204NT
10
Reference Voltage
The reference voltage are provided for the left channel and the right channel separately. The block diagram
is shown as figure 1.
V
CC
V
CC
V
EE
V
EE
GND
L channel reference
R channel reference
Music sensor reference
+
–
+
–
+
–
22
42
1
Figure 1 Reference Voltage
Operating Mode Control
HA12203NT / 204NT provide fully electronic switching circuits. And each operating mode control is
controlled by parallel data (DC voltage).
Table 2 Control Voltage
Pin No.
Lo
Mid
Hi
Unit
Test Condition
12, 13, 14, 16,
17, 18, 20
– 0.2 to 1.0
—
4.0 to V
CC
V
Input Pin
V
Measure
15, 19
– 0.2 to 1.0
2.0 to 3.0
4.0 to V
CC
V
Notes: 1. Each pins are on pulled down with 100 k
internal resistor.
Therefore, it will be low-level when each pins are open.
But 19 pin are mid-level when it is open.
2. Over shoot level and under shoot level of input signal must be the standardized (High: V
CC
, Low:
–0.2V).
3. For reduction of pop noise, connect 1
μ
F to 22
μ
F capacitor with mode control pins.
But it is impossible to reduce completely in regard to Line mute, therefore, use external mute at
the same time.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| HA12206 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck |
| HA12206NT | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck |
| HA12207 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck |
| HA12207NT | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck |
| HA12209 | 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) |
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