參數(shù)資料
型號: VPX3224E
廠商: MICRONAS SEMICONDUCTOR HOLDING AG
英文描述: Video Pixel Decoders
中文描述: 視頻解碼器像素
文件頁數(shù): 63/92頁
文件大小: 616K
代理商: VPX3224E
ADVANCE INFORMATION
VPX 322xE
MICRONAS INTERMETALL
63
5. Timing Diagrams
5.1. Power-Up Sequence
The reset should not reach high level before the oscillator has started. This requires a reset delay of >1 ms (see Fig.5–1).
t
STARTUP1
Supplies
Crystal
Oscillator
95%
V
IOH
RES
Fig. 5–1:
Power-up sequence
t
STARTUP2
5.2. Default Wake-up Selection
The state of FIELD and OE pins are sampled at the high
(inactive) going edge of RES in order to select between
two power-on parameters. OE determines the I
2
C ad-
dress.
The FIELD pin is internally pulled down. An external pull-
up resistor defines a different power on configuration.
FIELD defines the global wake-up mode of the VPX.
With FIELD pulled down, the VPX goes into low power
mode.
RES
FIELD
OE
V
IOH
V
IOL
V
IOH
V
IOL
Fig. 5–2:
Default wake-up selection
t
s-WU
t
h-WU
t
RES MIN
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