參數(shù)資料
型號: EVAL-AD1937AZ
廠商: Analog Devices Inc
文件頁數(shù): 23/36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 3 of 36
SPECIFICATIONS
TEST CONDITIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
Table 1.
Parameter
Value
Supply Voltages (AVDD, DVDD)
3.3 V
Temperature
As specified in Table 2 and Table 3
Master Clock
12.288 MHz (48 kHz fS, 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)
±1 mA or 1.5 kΩ to DVDD supply
Input Voltage High
2.0 V
Input Voltage Low
0.8 V
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at a TA of 25°C.
Table 2.
Parameter
Conditions/Comments
Min
Typ
Max
Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
All ADCs
24
Bits
Dynamic Range
20 Hz to 20 kHz, 60 dB input
No Filter (RMS)
96
102
dB
With A-Weighted Filter (RMS)
98
105
dB
Total Harmonic Distortion + Noise
1 dBFS
96
87
dB
Full-Scale Input Voltage (Differential)
1.9
V rms
Gain Error
10
+10
%
Interchannel Gain Mismatch
0.25
+0.25
dB
Offset Error
10
0
+10
mV
Gain Drift
100
ppm/°C
Interchannel Isolation
110
dB
CMRR
100 mV rms, 1 kHz
55
dB
100 mV rms, 20 kHz
55
dB
Input Resistance
14
Input Capacitance
10
pF
Input Common-Mode Bias Voltage
1.5
V
DIGITAL-TO-ANALOG CONVERTERS
DAC Resolution
All DACs
24
Bits
Dynamic Range
20 Hz to 20 kHz, 60 dB input
No Filter (RMS)
102
107
dB
With A-Weighted Filter (RMS)
105
110
dB
With A-Weighted Filter (Average)
112
dB
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