參數(shù)資料
型號(hào): AD1939YSTZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 23/32頁(yè)
文件大?。?/td> 0K
描述: IC CODEC 24BIT ADC/DAC 64LQFP
標(biāo)準(zhǔn)包裝: 1
類型: 通用
數(shù)據(jù)接口: 串行
分辨率(位): 24 b
ADC / DAC 數(shù)量: 4 / 8
三角積分調(diào)變:
S/N 比,標(biāo)準(zhǔn) ADC / DAC (db): 94 / 94
動(dòng)態(tài)范圍,標(biāo)準(zhǔn) ADC / DAC (db): 105 / 110
電壓 - 電源,模擬: 3 V ~ 3.6 V
電壓 - 電源,數(shù)字: 3 V ~ 3.6 V
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
包裝: 托盤
產(chǎn)品目錄頁(yè)面: 776 (CN2011-ZH PDF)
Data Sheet
AD1939
Rev. E | Page 3 of 32
SPECIFICATIONS
TEST CONDITIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
Supply voltages (AVDD, DVDD)
3.3 V
Temperature range1
As specified in Table 1 and Table 2
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
1 Functionally guaranteed at 40°C to +125°C case temperature.
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at an ambient temperature of 25°C.
Table 1.
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
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
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
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