參數(shù)資料
型號： EVAL-ADAU1781Z
廠商： Analog Devices Inc
文件頁數(shù)： 67/92頁
文件大?。?/td> 0K
描述： BOARD EVAL FOR ADAU1781
標(biāo)準(zhǔn)包裝： 1
系列： SigmaDSP®
主要目的： 音頻編解碼器
嵌入式： 是，DSP
已用 IC / 零件： ADAU1781
主要屬性： 立體聲，24 位，8 ~ 96 kHz 采樣率，GUI 工具
次要屬性： *
已供物品： *
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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