參數(shù)資料
型號(hào)： LM4931
廠商： National Semiconductor Corporation
英文描述： Audio Subsystem with Mono High Efficiency Loudspeaker and Stereo Headphone Amplifiers
中文描述： 與單聲道音頻子系統(tǒng)高效揚(yáng)聲器和立體聲耳機(jī)放大器
文件頁(yè)數(shù)： 21/47頁(yè)
文件大?。?/td> 1640K
代理商： LM4931
Clock Divider Configuration Registers
This register is used to control the multiplexers in the clock module.
DEFAULT CHART FOR CLK_MUX (08h)
DATA BIT
DEFAULT
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
CLK_MUX (08h) (SET = LOGIC 1, CLEAR = LOGIC 0)
Address
Register
Description
0
PLL_INPUT
Programs the PLL input multiplexer to select. (Note 12)
PLL_INPUT
0
1
If set the master clock is divided by two, for example allowing for a
24.576MHz or PCI clock to be used. (Note 12, 15)
FAST_CLOCK
0
1
Selects which clock is passed to the audio sub-system: (Note 12)
AUDIO_CLK_SEL
PLL Input Source
MCLK
I
2
S Input Clock
1
FAST_CLOCK
MCLK Frequency
Normal
Divided by 2
2
AUDIO_CLK_SEL
Audio Sub-system
Input Source
PLL Output
MCLK / MCLK/2
0
1
3
VOICE_CLK_SEL
Selects which clock is passed to the voice sub-system: (Note 12)
VOICE_CLK_SEL
Audio Sub-system
Input Source
PLL Output
MCLK / MCLK/2
0
1
4
PLL_DISABLE
Powers down the PLL if it is not required.
Programs the Q divider (divides from the PLL output frequency of
12.288MHz).
6:5
00
01
10
11
RESERVED (Note 14)
6:5
Q_DIV
Divide Value
12 (1.024MHz/8kHz)
8 (1.536MHz/12kHz)
6 (2.048MHz/16kHz)
4 (3.072MHz/24kHz)
7
RSVD
Note 15:
For inputs greater than 50Mhz, the input clock divider FAST_CLOCK should be set.
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4931_06 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Audio Subsystem with Mono High Efficiency Loudsperker and Stereo Headphone Amplifiers
LM4931ITL/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4931ITLBD 功能描述:BOARD EVALUATION LM4931ITL RoHS:否 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:-
LM49321 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Audio Sub-System with Stereo DAC, Mono Class AB Loudspeaker Amplifier, OCL/SE Stereo Headphone Output and RF Suppression
LM49321RL 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Audio Sub-System with Stereo DAC, Mono Class AB Loudspeaker Amplifier, OCL/SE Stereo Headphone Output and RF Suppression
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