參數(shù)資料
型號: AD1974YSTZ
廠商: Analog Devices Inc
文件頁數(shù): 20/24頁
文件大?。?/td> 0K
描述: IC ADC 4CH W/ON-CHIP PLL 48LQFP
標準包裝: 1
位數(shù): 24
采樣率(每秒): 192k
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 4
功率耗散(最大): 429mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應商設(shè)備封裝: 48-LQFP(7x7)
包裝: 托盤
輸入數(shù)目和類型: 4 個差分,單極
產(chǎn)品目錄頁面: 777 (CN2011-ZH PDF)
Data Sheet
AD1974
Rev. D | Page 5 of 24
POWER SUPPLY SPECIFICATIONS
Table 5.
Parameter
Conditions/Comments
Min
Typ
Max
Unit
SUPPLIES
Voltage
DVDD
3.0
3.3
3.6
V
AVDD
3.0
3.3
3.6
V
Digital Current
MCLK = 256 fS
Normal Operation
fS = 48 kHz
56
mA
fS = 96 kHz
65
mA
fS = 192 kHz
95
mA
Power-Down
fS = 48 kHz to 192 kHz
2.0
mA
Analog Current
Normal Operation
74
mA
Power-Down
23
mA
DISSIPATION
Operation
MCLK = 256 fS, 48 kHz
All Supplies
429
mW
Digital Supply
185
mW
Analog Supply
244
mW
Power-Down, All Supplies
83
mW
POWER SUPPLY REJECTION RATIO
Signal at Analog Supply Pins
1 kHz, 200 mV p-p
50
dB
20 kHz, 200 mV p-p
50
dB
DIGITAL FILTERS
Table 6.
Parameter
Mode
Factor
Min
Typ
Max
Unit
ADC DECIMATION FILTER
All modes @ 48 kHz
Pass Band
0.4375 fS
21
kHz
Pass-Band Ripple
±0.015
dB
Transition Band
0.5 fS
24
kHz
Stop Band
0.5625 fS
27
kHz
Stop-Band Attenuation
79
dB
Group Delay
22.9844 fS
479
s
TIMING SPECIFICATIONS
40°C < TC < +125°C, DVDD = 3.3 V ± 10%.
Table 7.
Parameter
Condition
Comments
Min
Max
Unit
INPUT MASTER CLOCK (MCLK)
AND RESET
tMH
MCLK duty cycle
ADC clock source = PLL clock @ 256 fS, 384 fS, 512 fS, 768 fS
40
60
%
tMH
ADC clock source = direct MCLK @ 512 fS (bypass
on-chip PLL)
40
60
%
fMCLK
MCLK frequency
PLL mode, 256 fS reference
6.9
13.8
MHz
fMCLK
Direct 512 fS mode
27.6
MHz
tPDR
Low
15
ns
tPDRR
Recovery
Reset to active output
4096
tMCLK
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