CXB1454R
VCCA/G/T
TTLout
Cprobe
VCC
CXB1454R
CL'
VEEA/G/T
oscillo-
scope
CL' + Cprobe = 10pF
Fig. 4. Pixel/Sync/Cntl/DE waveform measurement
Timing Chart
1/Fsftclk
2.0V
SFTCLK
Vth
0.8V
Torc
Tofc
Setup/hold time is refered from
rising edge in CLKPOL = GND
falling edge in CLKPOL = Vcc or OPEN
Tsetup
REDxx
GRNxx
BLUxx
H/Vsync
CNTL
DE
Tord
2.0V
0.8V
Tofd
Dsftclk/Fsftclk
Thold
Fig. 5. TTL output timing
Pixel
Sync/Cntl/DE
SftClk
REFRQP
REFRQN
SDATAP
SDATAN
error
TAclk
Indeterminate
Indeterminate
TDclk
Fig. 6. Refclk request timing
–7–