cy7b9945v Cypress Semiconductor Corporation., cy7b9945v Datasheet - Page 8

• Manufacturer Part Number: cy7b9945v
• Description: High-speed Multi-phase Pll Clock Buffer
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-07336 Rev. *E
AC Test Loads and Waveforms
AC Timing Diagram
Notes:
Ordering Information
20. UI = unit interval. Examples: 1 UI is a full period. 0.1UI is 10% of period.
21. Measured at 0.5V deviation from starting voltage.
22. For t
23. These figures are for illustration purposes only. The actual ATE loads may vary.
Propagation
Delay (ps)
REF TO DEVICE 1 and 2
FB DEVICE2
FB DEVICE1
REF
t
FB
PD
Q
250
500
250
500
OZA
minimum, C
t
PDELTA
Max. Speed
L
= 0 pF. For t
(MHz)
200
200
200
200
t
t
REFpwh
PD
2.0V
t
For LOCK output only
R1 = 910 Ω
R2 = 910 Ω
C
PWH
L
< 30 pF
OZA
(Includes fixture and
probe capacitance)
maximum, C
CY7B9945V-2AC
CY7B9945V-5AC
CY7B9945V-2AI
CY7B9945V-5AI
Ordering Code
GND
3.3V
t
REFpwl
t
PDELTA
[23]
< 1 ns
t
L
CCJ1-3,4-12
= 25 pF to 185 MHz or 10 pF to 200 MHz.
(b) TTL Input Test Waveform
t
PWL
0.8V
For all other outputs
R1 = 100Ω
R2 = 100Ω
C
L
< 25 pF to 185 MHz
0.8V
Package Name
2.0V
or 10 pF at 200 MHz
(a) LVTTL AC Test Load
A52
A52
A52
A52
[1:2]Q[0:3]
[1:2]Q[0:3]
Q
t
Other Q
52-lead Thin Quad Flat Pack
52-lead Thin Quad Flat Pack
52-lead Thin Quad Flat Pack
52-lead Thin Quad Flat Pack
SKEW0,1
OUTPUT
t
t
SKEWBNK
SKEWPR
2.0V
0.8V
Package Type
< 1 ns
C
L
t
ODCV
3.3V
t
ODCV
t
t
SKEW0,1
SKEWBNK
t
SKEWPR
R1
R2
RoboClock
CY7B9945V
Operating Range
Commercial
Commercial
Industrial
Industrial
Page 8 of 10
[1:2]Q[0,2]
[1:2]Q[1,3]
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