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MSP3440G 参数 Datasheet PDF下载

MSP3440G图片预览
型号: MSP3440G
PDF下载: 下载PDF文件 查看货源
内容描述: 多标准音频处理器系列 [Multistandard Sound Processor Family]
分类和应用:
文件页数/大小: 106 页 / 1906 K
品牌: MICRONAS [ MICRONAS ]
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MSP 34x0G  
DATA SHEET  
Table 3–11: Write Registers on I2C Subaddress 12hex, continued  
Register  
Address  
Function  
Name  
SUBWOOFER OUTPUT CHANNEL  
00 2Chex Subwoofer Level Adjustment  
SUBW_LEVEL  
bit[15:8] 0Chex  
+12 dB  
...  
01hex  
00hex  
FFhex  
...  
+1 dB  
0 dB (default)  
1 dB  
E3hex  
E2hex  
...  
29 dB  
30 dB  
80hex  
Mute  
bit[7:0]  
00hex  
must be zero  
If Micronas BASS is added onto the main channel, this register should be set to  
00hex  
00 2Dhex  
Subwoofer Corner Frequency  
SUBW_FREQ  
bit[15:8] 5...40dec corner frequency in 10 Hz steps  
(range: 50...400 Hz)  
If Micronas BASS is active, SUBW_FREQ must be set to a value higher than  
the MB Lowpass Frequency (MB_LP). Choosing the corner frequency of the  
subwoofer closer to MB_LP results in a narrower MB frequency range. Recom-  
mended value: 1.5×MB_LP  
Subwoofer Characteristics  
SUBW_CHAR  
bit[7:4]  
0hex  
1hex  
2hex  
3hex  
sharp edge Subwoofer characteristics (default)  
medium edge Subwoofer characteristics  
soft edge Subwoofer characteristics  
very soft edge Subwoofer characteristics  
An adjustable subwoofer filter characterisitic with four different filter sets can be  
selected. Due to the complementary filter design, the output of high- and low-  
pass filter add up to 0db at the crossover region for all filter sets.  
Subwoofer Complementary High-Pass Filter  
SUBW_HP  
bit[3:0]  
0hex  
1hex  
loudspeaker channel unfiltered  
a complementary high-pass is processed in the loud-  
speaker output channel  
2hex  
Micronas BASS added onto main channel  
MICRONAS BASS (MB) CONTROL REGISTERS  
00 68hex Micronas BASS Effect Strength  
MB_STR  
bit[15:8] 00hex  
7Fhex  
Micronas BASS OFF (default)  
maximum Micronas BASS  
bit[7:0]  
00hex  
must be zero  
The Micronas BASS effect strength can be adjusted in 1dB steps. A value of  
44hex will yield a medium Micronas BASS effect.  
38  
May 27, 2003; 6251-476-1DS  
Micronas  
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