vpx3224d ETC-unknow, vpx3224d Datasheet - Page 60

• Manufacturer Part Number: vpx3224d
• Description: Video Pixel Decoders
• Manufacturer: ETC-unknow

60
VPX 3225D, VPX 3224D
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).
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
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.
Supplies
Crystal
Oscillator
RES
Fig. 5–1: Power-up sequence
95%
2
C ad-
t
STARTUP1
RES
FIELD
OE
Fig. 5–2: Default wake-up selection
t
RES MIN
t
s-WU
t
STARTUP2
PRELIMINARY DATA SHEET
t
h-WU
V
IOH
V
V
V
V
Micronas
IOH
IOL
IOH
IOL