adv7152 Analog Devices, Inc., adv7152 Datasheet - Page 6

• Manufacturer Part Number: adv7152
• Description: Cmos 220 Mhz True-color Graphics Triple 10-bit Video Ram-dac
• Manufacturer: Analog Devices, Inc.

ADV7152
Figure 7. Video Data Shift Clock Input (SCKIN) & BLANK vs. Video Data Shift Clock Output (SCKOUT)
CLOCK
(WRITE MODE)
(READ MODE)
SCKOUT
BLANK
R/W, C0, C1
SCKIN
D0–D9
D0–D9
OUTPUTS
CE
ANALOG
t
13
*INCLUDES PIXEL DATA (R0-R7, G0-G7, B0-B7); PALETTE SELECT INPUTS (PS0-PS1); SYNC; BLANK
t
19
IOR, IOR
IOG, IOG
IOB, IOB
I
PLL
Figure 9. Microprocessor Port (MPU) Interface Timing
, SYNCOUT
CONTROL DATA
Figure 8. Analog Output Response vs. CLOCK
VALID
t
15
t
23
t
20
t
END OF SCAN
24
LINE (N)
t
14
t
21
t
16
BLANKING PERIOD
t
17
R/W = 1
t
–6–
R/W = 0
26
NOTE:
THIS DIAGRAM IS NOT TO SCALE. FOR THE PURPOSES OF CLARITY,
THE ANALOG OUTPUT WAVEFORM IS MAGNIFIED IN TIME AND
AMPLITUDE W.R.T. THE CLOCK WAVEFORM.
I
RELEVANT OUTPUT TIMING SPECIFICATION FOR I
PLL
t
18
AND SYNCOUT ARE DIGITAL OUTPUT SIGNALS. t
t
27
t
25
t
22
START OF SCAN
LINE (N+1)
50 %
10 %
WHITE LEVEL
90 %
BLACK LEVEL
PLL
16
AND SYNCOUT.
FULL SCALE
TRANSITION
IS THE ONLY
REV. B