YGV629 Datasheet, PDF (16/26 Pages) YAMAHA CORPORATION – VC1 Video Controller 1

YGV629









z AC Characteristics
Measurement Conditions
ɾInput Voltage: 0V to VDD
ɾInput Transition Time: 1ns (Transition time is regulated between VDD×0.2 and VDD×0.8)
ɾMeasurement Reference Voltage: Input V_IL or V_IH
Output VDD×0.5 [V]
ɾOutput Load Capacitance: 20pF
z Clock Input
No.
Items
Symbol Min. Typ. Max. Unit Note
1 ^{XIN Input Clock Frequency}
XIN Clock Cycle Time
f_XIN
6
t_XIN
25
40 MHz
166 ns
2 ^{DTCKIN Input Clock Frequency}
DTCKIN Clock Cycle Time
f_DTCKIN
t_DTCKIN
25
40 MHz
ns
3 XIN, DTCKIN Clock High Level Pulse Width t_whCLK 7.5
ns
4 XIN, DTCKIN Clock Low Level Pulse Width
t_wlCLK
7.5
ns
5 SYCLK(PLL Out) Clock Cycle Time
t_SYCLK
12.5
16.6 ns 1
6 DCLK Clock Cycle Time
t_DCLK
25
ns 2
Note1) SYCLK is an internal clock generated in the PLL. t_SYCLK is a regulation to the value that is found by the
following formula, to the input clock to XIN pin.
t_SYCLK = t_XIN × k ÷ n
(1 ≤ k ≤ 4, 1 ≤ n ≤ 16)
Note2) DCLK is a Dot Clock that is used inside.
1, 2
3
4
V_IH

7_%%
Y
0.5
V_IL
-16-
4GV629A50