參數(shù)資料
型號: EVAL-ADAU1381Z
廠商: Analog Devices Inc
文件頁數(shù): 34/84頁
文件大小: 0K
描述: BOARD EVALUATION FOR ADAU1381
標(biāo)準(zhǔn)包裝: 1
主要目的: 音頻編解碼器
嵌入式:
已用 IC / 零件: ADAU1381
已供物品:
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ADAU1381
Rev. B | Page 4 of 84
SPECIFICATIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
Supply voltages AVDD = AVDD1 = AVDD2 = I/O supply = 3.3 V, digital supply = 1.5 V, unless otherwise noted; temperature = 25°C;
master clock (MCLK) = 12.288 MHz (fS = 48 kHz, 256 × fS mode); input sample rate = 48 kHz; measurement bandwidth = 20 Hz to 20 kHz;
word width = 24 bits; load capacitance (digital output) = 20 pF; load current (digital output) = 2 mA; high level input voltage = 0.7 × IOVDD;
and low level input voltage = 0.3 × IOVDD. All power management registers are set to their default states.
RECORD SIDE PERFORMANCE SPECIFICATIONS
Specifications guaranteed at 25°C (ambient).
Table 1.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
All ADCs
24
Bits
Digital Attenuation Step
0.375
dB
Digital Attenuation Range
95
dB
INPUT RESISTANCE
Noninverting Inputs PGA
(LMICP, RMICP)
All gain settings
500
Inverting Inputs PGA (LMICN, RMICN)
0 dB gain
62
6 dB gain
32
10 dB gain
22
14 dB gain
14
17 dB gain
10
20 dB gain
8
26 dB gain
5
32 dB gain
4
Beep Input PGA
0 dB
20
6 dB
9
10 dB
6
14 dB
3.5
23 dB
50
20 dB
2
26 dB
2
32 dB
2
SINGLE-ENDED MICROPHONE INPUT
TO ADC PATH
Full-Scale Input Voltage (0 dB)
Scales linearly with AVDD
AVDD/3.3
V rms
AVDD = 1.8 V
0.55 (1.56)
V rms (V p-p)
AVDD = 3.3 V
1.0 (2.83)
V rms (V p-p)
Dynamic Range
60 dB input
With A-Weighted Filter (RMS)
AVDD = 1.8 V
96
dB
AVDD = 3.3 V
94
99.2
dB
No Filter (RMS)
AVDD = 1.8 V
92
dB
AVDD = 3.3 V
92
96.5
dB
Total Harmonic Distortion + Noise
3 dBFS
AVDD = 1.8 V
88
dB
AVDD = 3.3 V
90
dB
Signal-to-Noise Ratio
With A-Weighted Filter (RMS)
AVDD = 1.8 V
96
dB
AVDD = 3.3 V
100
dB
No Filter (RMS)
AVDD = 1.8 V
92
dB
AVDD = 3.3 V
97
dB
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