GS2962 Datasheet, PDF (65/82 Pages) Gennum Corporation – Integrated Narrow-Bandwidth PLL

Table 4-15: GSPI AC Characteristics
Parameter
Symbol
Conditions
Min
Typ Max Units
CS low before SCLK rising
t₀
50% levels; 3.3V or 1.8V
1.5
edge
operation
−
−
ns
SCLK period
t₁
12.5
−
−
ns
SCLK duty cycle
t₂
40
50
60
%
Input data setup time
t₃
1.5
−
−
ns
Time between end of
t₄
Command Word (or data in
Auto-Increment mode) and
the first SCLK of the following
Data Word – write cycle.
PCLK
ns
−
−
ns
(MHz)
unlocked
445
13.5
74.2
27.0
37.1
74.25
13.5
148.5
6.7
Time between end of
t₅
Command Word (or data in
Auto-Increment mode) and
the first SCLK of the following
Data Word – read cycle.
PCLK
ns
−
−
ns
(MHz)
unlocked
1187
13.5
297
27.0
148.5
74.25
53.9
148.5
27
Output hold time (15pF load)
t₆
1.5
−
−
ns
CS HIGH after last SCLK falling
t₇
edge
PCLK
ns
−
−
ns
(MHz)
unlocked
445
74.2
74.2
37.10
37.1
74.25
13.5
148.5
6.7
Input data hold time
t₈
1.5
−
−
ns
NOTE: If the application interface performs a Read or Write access after power-up, prior to the application of a valid serial video
input signal, the SCLK frequency must not exceed 10MHz.
GS2962 3G/HD/SD-SDI Serializer with Complete
SMPTE Video Support
Data Sheet
48005 - 7
October 2010
65 of 82