CY7B9945V-2AXI Cypress Semiconductor Corp, CY7B9945V-2AXI Datasheet - Page 10

• Manufacturer Part Number: CY7B9945V-2AXI
• Description: CY7B9945V-2AXI
• Manufacturer: Cypress Semiconductor Corp
• Series: RoboClock™r
• Type: Clock Buffer, Fanout Distributionr

Specifications of CY7B9945V-2AXI

• Pll: Yes
• Input: LVPECL, LVTTL
• Output: LVTTL
• Number Of Circuits: 1
• Ratio - Input:output: 4:10
• Differential - Input:output: Yes/No
• Frequency - Max: 200MHz
• Divider/multiplier: Yes/Yes
• Voltage - Supply: 2.97 V ~ 3.63 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-LQFP
• Frequency-max: 200MHz
• Number Of Elements: 1
• Supply Current: 250mA
• Pll Input Freq (min): 24MHz
• Pll Input Freq (max): 200MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TQFP
• Output Frequency Range: 24 to 200MHz
• Operating Supply Voltage (min): 2.97V
• Operating Supply Voltage (max): 3.63V
• Operating Temperature Classification: Industrial
• Pin Count: 52
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-2247; CY7B9945V-2AXI

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Document Number: 38-07336 Rev. *J
Notes
14. Guaranteed by statistical correlation. Tested initially and after any design or process changes that affects these parameters.
15. Rise and fall times are measured between 2.0 V and 0.8 V.
16. f
17. t
18. UI = unit interval. Examples: 1 UI is a full period. 0.1UI is 10% of period.
19. Measured at 0.5 V deviation from starting voltage.
20. For t
21. These figures are for illustration purposes only. The actual ATE loads may vary.
REF TO DEVICE 1 and 2
FB DEVICE2
FB DEVICE1
NOM
PWH
REF
t
FB
PD
Q
OZA
must be within the frequency range defined by the same FS state.
is measured at 2.0 V. t
minimum, C
t
PDELTA
L
= 0 pF. For t
t
t
REFpwh
PD
2.0 V
t
PWL
PWH
For LOCK output only
R1 = 910 Ω
R2 = 910 Ω
C
is measured at 0.8 V.
L
OZA
< 30 pF
maximum, C
(Includes fixture and
probe capacitance)
t
REFpwl
t
PDELTA
GND
3.3 V
< 1 ns
Figure 4. AC Test Loads and Waveforms
t
L
CCJ1-3,4-12
= 25 pF to 185 MHz or 10 pF to 200 MHz
t
PWL
0.8 V
(b) TTL Input Test Waveform
PRELIMINARY
Figure 5. AC Timing Diagram
For all other outputs
R1 = 100Ω
R2 = 100Ω
C
L
< 25 pF to 185 MHz
0.8 V
2.0 V
or 10 pF at 200 MHz
(a) LVTTL AC Test Load
[1:2]Q[0:3]
[1:2]Q[0:3]
Q
t
Other Q
SKEW0,1
t
t
SKEWBNK
SKEWPR
OUTPUT
2.0 V
0.8 V
< 1 ns
C
t
L
ODCV
3.3 V
t
ODCV
t
t
SKEW0,1
SKEWBNK
t
SKEWPR
R1
R2
RoboClock
CY7B9945V
[1:2]Q[0,2]
[1:2]Q[1,3]
Page 10 of 15
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