參數(shù)資料
型號: LM4930
廠商: National Semiconductor Corporation
英文描述: Audio Subsystem with Stereo Headphone & Mono Speaker Amplifiers
中文描述: 音頻子系統(tǒng)的立體聲耳機
文件頁數(shù): 6/33頁
文件大小: 966K
代理商: LM4930
SYSTEM CONTROL REGISTERS
Gain Config Registers
This register is used to control the gain of the headphone amplifier, the loudspeaker amplifier, and the microphone preampli-
fier. The 7 bit address for the GAINCONFIG register is XX10010.
to logic 1)
GAINCONFIG (XX10010).
(Set = logic 1, Clear = logic 0)
(Continued)
(X = 0 if ADDR is set to logic 0)
(X = 1 if ADDR is set
BIT
RESET
15
0
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
Address
4:0
Register
LOUDSPKR_GAIN
Description
Programs the gain of the loudspeaker amplifier. Gain is set as follows:
4:0
Loudspeaker
Gain
00000
-34.5dB
10000
00001
-33dB
10001
00010
-31.5dB
10010
00011
-30dB
10011
00100
-28.5dB
10100
00101
-27dB
10101
00110
-25.5dB
10110
00111
-24dB
10111
01000
-22.5dB
11000
01001
-21dB
11001
01010
-19.5dB
11010
01011
-18dB
11011
01100
-16.5dB
11100
01101
-15dB
11101
01110
-13.5dB
11110
01111
-12dB
11111
Programs the gain of the headphone amplifier. Gain is set as follows:
9:5
Headphone Gain
9:5
00000
-46dB
10000
00001
-45dB
10001
00010
-43.5dB
10010
00011
-42db
10011
00100
-40.5dB
10100
00101
-39dB
10101
00110
-37.5dB
10110
00111
-36dB
10111
01000
-34.5dB
11000
01001
-33dB
11001
01010
-31.5dB
11010
01011
-30dB
11011
01100
-28.5dB
11100
01101
-27dB
11101
01110
-25.5dB
11110
01111
-24dB
11111
Programs the gain of the microphone amplifier. Gain is set as follows:
4:0
Loudspeaker Gain
-10.5dB
-9dB
-7.5dB
-6dB
-4.5dB
-3dB
-1.5dB
0dB
1.5dB
3dB
4.5dB
6dB
7.5dB
9dB
10.5dB
12dB
9:5
HP_GAIN
Headphone Gain
-22.5dB
-21dB
-19.5dB
-18dB
-16.5dB
-15dB
-13.5dB
-12dB
-10.5dB
-9dB
-7.5dB
-6dB
-4.5dB
-3dB
-1.5dB
0dB
13:10
MIC_GAIN
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4930_04 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Audio Subsystem with Stereo Headphone & Mono Speaker Amplifiers
LM4930ITL 制造商:Texas Instruments 功能描述:Audio Amp Headphone/Microphone/Speaker 1-CH Mono/2-CH Stereo 1W Class-AB 36-Pin uSMD T/R
LM4930ITL/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
LM4930ITLX 制造商:Texas Instruments 功能描述:Audio Amp Headphone/Microphone/Speaker 1-CH Mono/2-CH Stereo 1W Class-AB 36-Pin uSMD T/R
LM4930ITLX/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