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參數(shù)資料
| 型號(hào)： | HA12164 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp) |
| 中文描述： | 音頻信號(hào)處理器為汽車甲板和卡座（杜比B型鉛放大器星期日） |
| 文件頁(yè)數(shù)： | 15/66頁(yè) |
| 文件大?。?/td> | 578K |
| 代理商： | HA12164 |
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HA12163 Series
Rev.4, Jun. 1999, page 15 of 66
Application Note
1. Power Supply Range
HA12163 series are provided with four line output level, which will permit on optimum overload
margin for power supply conditions. And this series are designd to operate on single supply only.
In case of split supply use, please consult with sales engineer.
Table 1
Supply Voltage
HA12163
HA12164
HA12165
HA12160
Single supply
6.5 V to 16.0 V
7.2 V to 16.0 V
8.5 V to 16.0 V
8.2 V to 16.0 V
A. The lower limit of supply voltage depends on the line output reference level.
The minimum value of the overload margin is specified as 12 dB by Dolby Laboratories.
B. In the reverse-voltage conditions such as ‘D-GND is higher than V
CC
’ or ‘D-GND is lower than
GND’, excessive current flows into the D-GND to destory this IC. To prevent such destruction, pay
attention to the followings on using.
Short-circuit the D-GND and GND directory on the board mounting this IC.
2. Reference Voltage
These devices provide the reference voltage of half the supply voltage that is the signal grounds. As the
peculiarity of these devices, the capacitor for the ripple filter is very small about 1/100 compared
with their usual value. The Reference voltage are provided for the left channel and the right channel
separately. The block diagram is shown as figure 1.
V
CC
1
μ
C22
RIP
+
GND 49
50
40
52
MS V
30
47
L channel
reference
Music sensor
reference
R channel
reference
22
+
–
+
–
+
–
V
REF
(L)
V
REF
(R)
REF
Figure 1 The Block Diagram of Reference Voltage Supply
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| HA12165 | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp) |
| HA12166F | Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA12165 | 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) |
| HA12166F | 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) |
| HA12167FB | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
| HA12167FB/HA12169FB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HA12169FB | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Audio Signal Processor for Cassette Deck (Deck 1 Chip) |
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