參數(shù)資料
型號: AD6645ASVZ-80
廠商: Analog Devices Inc
文件頁數(shù): 21/24頁
文件大?。?/td> 0K
描述: IC ADC 14BIT 80MSPS 52TQFP
設(shè)計資源: Low Jitter Sampling Clock Generator for High Performance ADCs Using AD9958/9858 and AD9515 (CN0109)
標(biāo)準(zhǔn)包裝: 1
位數(shù): 14
采樣率(每秒): 80M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 4
功率耗散(最大): 1.75W
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 52-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 52-TQFP-EP(10x10)
包裝: 托盤
輸入數(shù)目和類型: 1 個差分,雙極
AD6645
Rev. D | Page 6 of 24
Test
AD6645ASQ-80/
AD6645ASV-80
AD6645ASQ-105/
AD6645ASV-105
Parameter
Symbol
Temp
Level
Min
Typ
Max
Min
Typ
Max
Unit
DATA-READY (DRY4)/DATA(D13:0),, OVR
Data-Ready to DATA Delay (Hold Time)
tH_DR
Full
V
Note 55
50% Duty Cycle
Full
V
6.6
7.2
7.9
5.1
5.7
6.4
ns
Data-Ready to DATA Delay (Setup Time)
tS_DR
Full
V
Note 55
Note 55
50% Duty Cycle
Full
V
2.1
3.6
5.1
0.6
2.1
3.5
ns
APERTURE DELAY
tA
25°C
V
500
ps
APERTURE UNCERTAINTY (JITTER)
tJ
25°C
V
0.1
ps rms
1 Several timing parameters are a function of tENC and tENCH.
2 Several timing parameters are a function of tENCL and tENCH.
3 ENCODE TO DATA Delay (Hold Time) is the absolute minimum propagation delay through the ADC, tE_RL = tH_E.
4 DRY is an inverted and delayed version of the encode clock. Any change in the duty cycle of the clock will correspondingly change the duty cycle of DRY.
5 Data-ready to DATA Delay (tH_DR and tS_DR) is calculated relative to rated speed grade and is dependent on tENC and duty cycle.
tS_DR
tA
AIN
N
N + 1
N + 2
N + 3
N + 4
tENC
tENCH
tENCL
tE_FL
tE_RL
tE_DR
tS_E
tH_E
tDR
tH_DR
N
N – 1
N – 3
D[13:0], OVR
DRY
N + 4
N + 3
N + 2
N + 1
N
ENCODE,
ENCODE
N – 2
26
47
-00
2
0
Figure 2. Timing Diagram
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