參數(shù)資料
型號: XWM8191CFT
廠商: Wolfson Microelectronics
英文描述: 14-bit 6MSPS CIS/CCD Analogue Front End/Digitiser
中文描述: 14位6MSPS獨(dú)聯(lián)體/防治荒漠化公約模擬前端/數(shù)字轉(zhuǎn)換器
文件頁數(shù): 7/27頁
文件大小: 355K
代理商: XWM8191CFT
Advanced Information
WM8191
WOLFSON MICROELECTRONICS LTD
AI Rev 3.1 April 2001
7
INPUT VIDEO SAMPLING
MCLK
VSMP
INPUT
VIDEO
t
PER
t
MCLKH
t
MCLKL
t
VSMPSU
t
VSMPH
t
VSU
t
VH
t
RSU
t
RH
Figure 1 Input Video Timing
Test Conditions
AVDD1 = AVDD2 = DVDD1 = 4.75 to 5.25V, DVDD2 = DVDD3 = 2.97 to 3.63V, AGND = DGND = 0V, T
A
= 0 to 70
°
C,
MCLK = 12MHz unless otherwise stated.
PARAMETER
MCLK period
SYMBOL
t
PER
TEST CONDITIONS
MIN
83.3
TYP
MAX
UNITS
ns
MCLK high period
t
MCLKH
37.5
ns
MCLK low period
t
MCLKL
37.5
ns
VSMP set-up time
t
VSMPSU
10
ns
VSMP hold time
t
VSMPH
5
ns
Video level set-up time
t
VSU
15
ns
Video level hold time
t
VH
5
ns
Reset level set-up time
t
RSU
15
ns
Reset level hold time
t
RH
5
ns
Notes:
1.
t
VSU
and t
RSU
denote the set-up time required after the input video signal has settled.
Parameters are measured at 50% of the rising/falling edge.
2.
OUTPUT DATA TIMING
MCLK
OP[13:0]
t
PD
Figure 2 Output Data Timing
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