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參數(shù)資料
| 型號(hào)： | MSP4458 |
| 廠商： | MICRONAS SEMICONDUCTOR HOLDING AG |
| 英文描述： | Multistandard Sound Processor |
| 中文描述： | 多標(biāo)準(zhǔn)聲音處理器 |
| 文件頁數(shù)： | 29/85頁 |
| 文件大?。?/td> | 665K |
| 代理商： | MSP4458 |
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PRELIMINARY DATA SHEET
MSP 44x8G
Micronas
29
MAIN AND AUX PROCESSING
00 00
hex
00 06
hex
Volume Main
Volume Aux
bit[15:8]
volume table with 1 dB step size
7F
hex
+
12 dB (maximum volume)
7E
hex
+
11 dB
...
74
hex
+
1 dB
73
hex
0 dB
72
hex
1 dB
...
02
hex
113 dB
01
hex
114 dB
00
hex
Mute (reset condition)
FF
hex
Fast Mute (needs about 75 ms until the signal is com-
pletely ramped down)
bit[7:5]
higher resolution volume table
0
+
0 dB
1
+
0.125 dB increase in addition to the volume table
...
7
+
0.875 dB increase in addition to the volume table
bit[4:0]
not used
must be set to 0
With large scale input signals, positive volume settings may lead to signal clipping.
The MSP 44x8G Main and Aux volume function is divided into a digital and an
analog section. With Fast Mute, volume is reduced to mute position by digital vol-
ume only. Analog volume is not changed. This reduces any audible DC plops. To
turn volume on again, the volume step that has been used before Fast Mute was
activated must be transmitted.
VOL_MAIN
VOL_AUX
0029
hex
Automatic Volume Correction (AVC)
bit[15]
0
1
AVC off, reset of internal variables
AVC on
bit[14]
0
1
AVC in Main path
AVC in Mixer path
bit[13:12]
0
must be set to zero
bit[11:8]
8
4
2
1
8 s decay time
4 s decay time (recommended)
2 s decay time
20 ms decay time (should be used for approx. 100 ms
after channel change)
AVC
AVC_DECAY
00 34
hex
Preemphasis Aux Channel
bit[15:8]
00
hex
7F
hex
FF
hex
Preemphasis OFF
Preemphasis 50
μ
s (
3 dB scaling)
Preemphasis 75
μ
s (
3 dB scaling)
PREEMP_AUX
Table 3–11:
Write Registers on I
2
C Subaddress 12
hex
, continued
Register
Address
Function
Name
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSP4458G | Multistandard Sound Processor |
| MSP44X8G | Multistandard Sound Processor |
| MSP5000 | MSP for Multi-Service Platforms and Intelligent IADs |
| MSP50C30PJM | MIXED-SIGNAL PROCESSOR |
| MSP50C34N | MIXED-SIGNAL PROCESSORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSP-450-12 | 制造商:Mean Well 功能描述:AC to DC Switching Enclosed Medical Power Supply Single Outp 制造商:Mean Well 功能描述:Linear and Switching Power Supplies 12V 37.5A 450W 85-264Vin Medical PS |
| MSP-450-15 | 制造商:Mean Well 功能描述:AC to DC Switching Enclosed Medical Power Supply Single Outp 制造商:Mean Well 功能描述:Linear and Switching Power Supplies 15V 30A 450W 85-264Vin Medical PS |
| MSP-450-24 | 制造商:Mean Well 功能描述:AC to DC Switching Enclosed Medical Power Supply Single Outp |
| MSP-450-3.3 | 制造商:Mean Well 功能描述:AC to DC Switching Enclosed Medical Power Supply Single Outp |
| MSP-450-36 | 制造商:Mean Well 功能描述:AC to DC Switching Enclosed Medical Power Supply Single Outp |
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