參數(shù)資料
型號(hào): AD1981BJST-REEL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 3/32頁(yè)
文件大?。?/td> 0K
描述: IC CODEC STEREO MICPREAMP 48LQFP
標(biāo)準(zhǔn)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(diào)變: 無(wú)
動(dòng)態(tài)范圍,標(biāo)準(zhǔn) 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(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: AD1981BJSTREELDKR
AD1981B
Rev. C | Page 11 of 32
Pin No.
Mnemonic
I/O
Description
22
MIC2
I
Microphone 2 Input (Mono) or Right Channel when 2-Channel Mode Selected
(Stereo MIC).
23
LINE_IN_L
I
Line-In Left Channel.
24
LINE_IN_R
I
Line-In Right Channel.
35
LINE_OUT_L
O
Line-Out (Front) Left Channel.
36
LINE_OUT_R
O
Line-Out (Front) Right Channel.
37
MONO_OUT
O
Monaural Output to Telephony Subsystem Speaker Phone.
39
HP_OUT_L
O
Headphone Left-Channel Output.
41
HP_OUT_R
O
Headphone Right-Channel Output.
FILTER/REFERENCE2
27
VREF
O
Voltage Reference Filter.
28
VREFOUT
O
Voltage Reference Output 5 mA Drive (Intended for MIC Bias and Power Amp Bias).
29
AFILT1
O
Antialiasing Filter Capacitor—ADC Right Channel.
30
AFILT2
O
Antialiasing Filter Capacitor—ADC Left Channel.
31
AFILT3
O
Antialiasing Filter Capacitor—Mixer ADC Right Channel.
32
AFILT4
O
Antialiasing Filter Capacitor—Mixer ADC Left Channel.
POWER AND GROUND SIGNALS
1
DVDD1
I
Digital VDD, 3.3 V.
4
DVSS1
I
Digital GND.
7
DVSS2
I
Digital GND.
9
DVDD2
I
Digital VDD, 3.3 V.
25
AVDD1
I
Analog VDD, 5.0 V.
26
AVSS1
I
Analog GND.
38
AVDD2
I
Analog VDD, 5.0 V.
40
AVSS2
I
Analog GND.
43
AVDD3
I
Analog VDD, 5.0 V.
44
AVSS3
I
Analog GND.
34
AVDD4
I
Analog VDD, 5.0 V.
33
AVSS4
I
Analog GND.
NO CONNECTS
12
NC
No Connect.
42
NC
No Connect.
1 These pins can also be used to select an external clock. See Table 44.
2 These signals are connected to resistors, capacitors, or specific voltages.
OBSOLETE
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