cy29949ait Cypress Semiconductor Corporation., cy29949ait Datasheet - Page 4

• Manufacturer Part Number: cy29949ait
• Description: 2.5v Or 3.3v 200-mhz 1 15 Clock Distribution Buffer
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-07289 Rev. *D
AC Parameters
Notes:
10. Part-to-Part skew at a given temperature and voltage.
Fmax
Tpd
FoutDC
tpZL, tpZH
tpLZ, tpHZ
Tskew
Tskew(pp)
Tr/Tf
6. Parameters are guaranteed by design and characterization. Not 100% tested in production. All parameters specified with loaded outputs.
7. Outputs driving 50 transmission lines.
8. 50% input duty cycle.
9. See Figures 1 and 2.
Parameter
Input Frequency
PECL_CLK to Q Delay
TCLK to Q Delay
PECL_CLK to Q Delay
TCLK to Q Delay
Output Duty Cycle
Output Enable Time (all outputs)
Output Disable Time (all outputs)
Output-to-Output Skew
Part-to-Part Skew
Output Clocks Rise/Fall Time
(V
Figure 1. LVCMOS_CLK CY29949 Test Reference for V
DD
Figure 2. PECL_CLK CY29949 Test Reference for V
Z = 50 ohm
Differential
Generator
Description
= V
Pulse
Z = 50 ohm
Generator
DDC
Pulse
[7]
[7]
[7]
[10]
[7, 8]
= 3.3V ±10% or 2.5V ±5%, over the specified temperature range)
[7]
[7]
[7, 9]
Zo = 50 ohm
Zo = 50 ohm
[9]
Zo = 50 ohm
VTT
V
V
V
V
Measured at VDD/2
PECL_CLK to Q
TCLK to Q
0.8V to 2.0V,
V
0.6V to 1.8V,
V
R
R
T
DD
DD
DD
DD
DD
DD
T
= 50 ohm
= 50 ohm
= 3.3V
= 2.5V
= 3.3V
= 2.5V
= 3.3V
= 2.5V
Conditions
CY29949 DUT
VTT
CY29949 DUT
CC
CC
Min.
0.10
0.10
= 3.3V and V
4.0
4.2
6.0
6.2
Zo = 50 ohm
45
–
–
2
2
–
–
–
= 3.3V and V
Zo = 50 ohm
R
T
R
= 50 ohm
T
= 50 ohm
Typ.
250
1.5
2.0
CC
–
–
–
–
–
–
–
–
–
–
–
VTT
CC
= 2.5V
= 2.5V
[6]
VTT
Max.
10.5
10.6
10.5
2.75
200
170
350
8.6
4.0
1.0
1.3
55
10
10
CY29949
Page 4 of 7
MHz
Unit
ns
ns
ns
ps
ns
ns
%
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