參數(shù)資料
型號: ADAU1761BCPZ-RL
廠商: Analog Devices Inc
文件頁數(shù): 56/92頁
文件大?。?/td> 0K
描述: IC SIGMADSP CODEC PLL 32LFCSP
設計資源: Stereo Digital Microphone Input Using ADAU1761 and ADMP421 (CN0078)
標準包裝: 5,000
系列: SigmaDSP®
類型: 音頻編解碼器
數(shù)據(jù)接口: 串行
分辨率(位): 24 b
ADC / DAC 數(shù)量: 2 / 2
三角積分調變:
電壓 - 電源,模擬: 1.8 V ~ 3.65 V
電壓 - 電源,數(shù)字: 1.63V ~ 3.65V
工作溫度: -40°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)
配用: EVAL-ADAU1761Z-ND - BOARD EVAL FOR ADAU1761
ADAU1761
Rev. C | Page 6 of 92
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
Interchannel Isolation
83
dB
Common-Mode Rejection Ratio
100 mV rms, 1 kHz
65
dB
100 mV rms, 20 kHz
65
dB
MICROPHONE BIAS
MBIEN = 1
Bias Voltage
0.65 × AVDD
AVDD = 1.8 V, MBI = 1
1.17
V
AVDD = 3.3 V, MBI = 1
2.145
V
0.90 × AVDD
AVDD = 1.8 V, MBI = 0
1.62
V
AVDD = 3.3 V, MBI = 0
2.97
V
Bias Current Source
AVDD = 3.3 V, MBI = 0, MPERF = 1
3
mA
Noise in the Signal Bandwidth
AVDD = 3.3 V, 1 kHz to 20 kHz
MBI = 0, MPERF = 0
42
nV/√Hz
MBI = 0, MPERF = 1
85
nV/√Hz
MBI = 1, MPERF = 0
25
nV/√Hz
MBI = 1, MPERF = 1
37
nV/√Hz
DIGITAL-TO-ANALOG CONVERTERS
DAC performance excludes mixers and
headphone amplifier
DAC Resolution
All DACs
24
Bits
Digital Attenuation Step
0.375
dB
Digital Attenuation Range
95
dB
DAC TO LINE OUTPUT
Full-Scale Output Voltage (0 dB)
Scales linearly with AVDD
AVDD/3.3
V rms
AVDD = 1.8 V
0.50 (1.41)
V rms (V p-p)
AVDD = 3.3 V
0.92 (2.60)
V rms (V p-p)
Analog Volume Control Step
Line output volume control
0.75
dB
Analog Volume Control Range
Line output volume control
57
1
+6
dB
Mute Attenuation
87
dB
Dynamic Range
20 Hz to 20 kHz, 60 dB input, line
output mode
With A-Weighted Filter (RMS)
AVDD = 1.8 V
96
dB
AVDD = 3.3 V
101
dB
No Filter (RMS)
AVDD = 1.8 V
93.5
dB
AVDD = 3.3 V
98
dB
Total Harmonic Distortion + Noise
1 dBFS, line output mode
dB
AVDD = 1.8 V
90
dB
AVDD = 3.3 V
92
dB
Signal-to-Noise Ratio
Line output mode
With A-Weighted Filter (RMS)
AVDD = 1.8 V
96
dB
AVDD = 3.3 V
101
dB
No Filter (RMS)
AVDD = 1.8 V
93.5
dB
AVDD = 3.3 V
98
dB
Power Supply Rejection Ratio
CM capacitor = 20 μF
100 mV p-p @ 217 Hz
56
dB
100 mV p-p @ 1 kHz
70
dB
Gain Error
3
%
Interchannel Gain Mismatch
0.005
dB
Offset Error
0
mV
Interchannel Isolation
1 kHz, 0 dBFS input signal
100
dB
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