參數(shù)資料
型號: EVAL-AD1937AZ
廠商: Analog Devices Inc
文件頁數(shù): 31/36頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD1937
標(biāo)準(zhǔn)包裝: 1
主要目的: 音頻編解碼器
已用 IC / 零件: AD1937
主要屬性: 24 位,192 kHz,4 ADC: 107dB 動態(tài)范圍,8 DAC: 112dB 動態(tài)范圍
次要屬性: 分時復(fù)用(TDM)、I2C 和 SPI 接口,Popguard? 技術(shù)
已供物品:
AD1937
Rev. B | Page 4 of 36
Parameter
Conditions/Comments
Min
Typ
Max
Unit
Total Harmonic Distortion + Noise
0 dBFS
Two channels running
94
dB
Eight channels running
86
76
dB
Full-Scale Output Voltage
1.76 (4.96)
V rms (V p-p)
Gain Error
10
+10
%
Interchannel Gain Mismatch
0.2
+0.2
dB
Offset Error
25
6
+25
mV
Gain Drift
30
+30
ppm/°C
Interchannel Isolation
100
dB
Interchannel Phase Deviation
0
Degrees
Volume Control Step
0.375
dB
Volume Control Range
95
dB
De-emphasis Gain Error
±0.6
dB
Output Resistance at Each Pin
100
Ω
REFERENCE
Internal Reference Voltage
FILTR pin
1.50
V
External Reference Voltage
FILTR pin
1.32
1.50
1.68
V
Common-Mode Reference Output
CM pin
1.50
V
REGULATOR
Input Supply Voltage
VSUPPLY pin
4.5
5
5.5
V
Regulated Output Voltage
VSENSE pin
3.19
3.37
3.55
V
Specifications measured at 40°C < TC < +125°C, AVDD = 3.3 V ± 10%.
Table 3.
40°C < TC < +125°C, AVDD = 3.3 V ± 10%
Parameter
Conditions/Comments
Min
Max
Units
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
All ADCs
24
Bits
Dynamic Range
20 Hz to 20 kHz, 60 dB
No Filter (RMS)
93
dB
With A-Weighted Filter (RMS)
95
dB
Total Harmonic Distortion + Noise
1 dBFS
85
dB
Full-Scale Input Voltage (Differential)
1.75
2.05
V rms
Gain Error
10
+10
%
Interchannel Gain Mismatch
0.46
+0.25
dB
Offset Error
10
+10
mV
Gain Drift
100
ppm/°C
Interchannel Isolation
105
dB
CMRR
100 mV rms, 1 kHz
42
dB
100 mV rms, 20 kHz
42
dB
Input Resistance
By design
Input Capacitance
By design
pF
Input Common-Mode Bias Voltage
1.45
1.55
V dc
DIGITAL-TO-ANALOG CONVERTERS
DAC Resolution
All DACs
24
Bits
Dynamic Range
20 Hz to 20 kHz, 60 dB
No Filter (RMS)
100
dB
With A-Weighted Filter (RMS)
104
dB
With A-Weighted Filter (Average)
109
dB
Total Harmonic Distortion + Noise
0 dBFS
Two channels
84
dB
Eight channels
76
dB
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