參數(shù)資料
型號: ADAU1781BCPZ-RL7
廠商: Analog Devices Inc
文件頁數(shù): 67/92頁
文件大?。?/td> 0K
描述: IC SIGMADSP CODEC LN 32LFCSP
標準包裝: 1,500
系列: SigmaDSP®
類型: 立體聲音頻
數(shù)據(jù)接口: I²C,串行,SPI?
分辨率(位): 24 b
ADC / DAC 數(shù)量: 2 / 2
三角積分調(diào)變:
S/N 比,標準 ADC / DAC (db): 100 / 105(差分),100 / 103(單端)
動態(tài)范圍,標準 ADC / DAC (db): 99.2 / 105(差分),99.2 / 103(單端)
電壓 - 電源,模擬: 1.8 V ~ 3.65 V
電壓 - 電源,數(shù)字: 1.63 V ~ 3.65 V
工作溫度: -25°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
供應商設備封裝: 32-LFCSP-VQ
包裝: 帶卷 (TR)
ADAU1781
Rev. B| Page 7 of 92
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
Dynamic Range
60 dB input
With A-Weighted Filter (RMS)
AVDD = 1.8 V
99
dB
AVDD = 3.3 V
94
103
dB
No Filter (RMS)
AVDD = 1.8 V
97
dB
AVDD = 3.3 V
92
100
dB
Total Harmonic Distortion + Noise
3 dBFS
dB
AVDD = 1.8 V
88
dB
AVDD = 3.3 V
88
dB
Signal-to-Noise Ratio
With A-Weighted Filter (RMS)
AVDD = 1.8 V
99
dB
AVDD = 3.3 V
103
dB
No Filter (RMS)
AVDD = 1.8 V
97
dB
AVDD = 3.3 V
100
dB
Power Supply Rejection Ratio
CM capacitor = 10 μF
AVDD = 3.3 V, 100 mV p-p at 217 Hz
55
dB
AVDD = 3.3 V, 100 mV p-p at 1 kHz
63
dB
Gain Error
AVDD = 3.3 V
1
dB
Interchannel Gain Mismatch
AVDD = 3.3 V
50
mdB
Offset Error
AVDD = 3.3 V
10
mV
DAC TO SPEAKER OUTPUT PATH
P
O = output power
Differential Full-Scale Output Voltage
(0 dB)
Scales linearly with AVDD
AVDD/1.65
V rms
AVDD = 1.8 V
1.1 (3.12)
V rms (V p-p)
AVDD = 3.3 V
2.0 (5.66)
V rms (V p-p)
Total Harmonic Distortion + Noise
4 Load
AVDD = 1.8 V, P
O = 50 mW
60
dB
AVDD = 3.3 V, P
O = 175 mW
60
dB
8 Load
AVDD = 1.8 V, P
O = 50 mW
60
dB
AVDD = 3.3 V, P
O = 175 mW
60
dB
AVDD = 3.3 V, P
O = 330 mW
60
dB
AVDD = 3.3 V, P
O = 440 mW
16
dB
Dynamic Range
60 dB input
With A-Weighted Filter (RMS)
AVDD = 1.8 V
100
dB
AVDD = 3.3 V
94
105
dB
No Filter (RMS)
AVDD = 1.8 V
98
dB
AVDD = 3.3 V
92
103
dB
Signal-to-Noise Ratio
With A-Weighted Filter (RMS)
AVDD = 1.8 V
100
dB
AVDD = 3.3 V
105
dB
No Filter (RMS)
AVDD = 1.8 V
98
dB
AVDD = 3.3 V
103
dB
Power Supply Rejection Ratio
CM capacitor = 10 μF
AVDD = 3.3 V,100 mV p-p at 217 Hz
55
dB
AVDD = 3.3 V, 100 mV p-p at 1 kHz
55
dB
Differential Offset Error
AVDD = 3.3 V
2
mV
Mono Mixer Mute Attenuation,
DAC to Mixer Path Muted
Mute set by Register 0x401F, Bit 0
90
dB
BEEP TO SPEAKER OUTPUT PATH
P
O = output power
Differential Full-Scale Output Voltage
(0 dB)
Scales linearly with AVDD
AVDD/1.65
V rms
AVDD = 1.8 V
1.1 (3.12)
V rms (V p-p)
AVDD = 3.3 V
2.0 (5.66)
V rms (V p-p)
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