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參數(shù)資料
| 型號： | AD1981BJST-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 11/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CODEC STEREO MICPREAMP 48LQFP |
| 標準包裝： | 1 |
| 系列： | SoundMAX® |
| 類型： | 音頻編解碼器 '97 |
| 數(shù)據(jù)接口： | 串行 |
| 分辨率（位）： | 16，20 b |
| ADC / DAC 數(shù)量： | 4 / 2 |
| 三角積分調變： | 無 |
| 動態(tài)范圍，標準 ADC / DAC (db)： | 85 / 90 |
| 電壓 - 電源，模擬： | 4.5 V ~ 5.5 V |
| 電壓 - 電源，數(shù)字： | 3 V ~ 3.47 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-LQFP |
| 供應商設備封裝： | 48-LQFP（7x7） |
| 包裝： | 標準包裝 |
| 其它名稱： | AD1981BJSTREELDKR |
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AD1981B
Rev. C | Page 19 of 32
RECORD SELECT CONTROL REGISTER
Index 0x1A
Reg No.
Name
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
0x1A
Record Select
X
LS2
LS1
LS0
X
RS2
RS1
RS0
0x0000
All registers are not shown, and bits containing an X are assumed to be reserved. Used to select the record source independently for right and left. The default value is
0x0000, which corresponds to MIC In. Refer to Table 24 for examples.
Table 23.
Bit
Function
RS [2:0]
Right Record Select
LS [2:0]
Left Record Select
Table 24. Settings for Record Select Control
LS [10:8]
Left Record Source
RS [2:0]
Right Record Source
000
MIC
000
MIC
001
CD_L
001
CD_R
010
Muted
010
Muted
011
AUX_L
011
AUX_R
100
LINE_IN_L
100
LINE_IN_R
101
Stereo Mix (L)
101
Stereo Mix (R)
110
Mono Mix
110
Mono Mix
111
PHONE_IN
111
PHONE_IN
RECORD GAIN REGISTER
Index 0x1C
Reg No.
Name
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default
0x1C
Record Gain
IM
X
LIM3
LIM2
LIM1
LIM0
RM1
X
RIM3
RIM2
RIM1
RIM0
0x8000
1 For AC ’97 compatibility, Bit D7 (RM) is available only by setting the MSPLT bit, Register 0x76. The MSPLT bit enables separate mute bits for the left and right channels.
If MSPLT is not set, the RM bit has no effect. All registers are not shown, and bits containing an X are assumed to be reserved. Refer to Table 24 for examples.
Table 25.
Bit
Mnemonic
Function
RIM [3:0]
Right Input Mixer Gain
Control
Each LSB represents 1.5 dB, 0000 = 0 dB, and the gain range is 0 dB to 22.5 dB.
RM
Right-Channel Mute
Once enabled by the MSPLT bit in Register 0x76, this bit mutes the right channel separately from the
IM bit. Otherwise, this bit always reads 0 and has no affect when set to 1.
LIM [3:0]
Left Input Mixer Gain
Control
Each LSB represents 1.5 dB, 0000 = 0 dB, and the gain range is 0 dB to 22.5 dB.
IM
Input Mute
When this bit is set to 1, both the left and right channels are muted, unless the MSPLT bit in
Register 0x76 is set to 1, in which case this mute bit affects only the left channel.
OBSOLETE
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相關代理商/技術參數(shù) |
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|---|---|
| AD1981BJSTZ | 制造商:Analog Devices 功能描述:IC AUDIO CODEC |
| AD1981BJSTZ1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:AC 97 SoundMAX Codec |
| AD1981BJSTZ2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:AC ’97 SoundMAX Codec |
| AD1981BJSTZ-REEL | 制造商:Analog Devices 功能描述:Audio Codec 4ADC / 2DAC 20-Bit 48-Pin LQFP T/R 制造商:Rochester Electronics LLC 功能描述:AC'97 SOUNDMAX CODEC W/STEREO MIC PREAMP - Tape and Reel 制造商:Analog Devices 功能描述:IC AUDIO CODEC |
| AD1981BJSTZ-REEL2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:AC ’97 SoundMAX Codec |
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