CY29943 Cypress Semiconductor, CY29943 Datasheet - Page 4

• Manufacturer Part Number: CY29943
• Description: 1:18 Clock Distribution Buffer
• Manufacturer: Cypress Semiconductor

AC Parameters
Notes:
Document #: 38-07285 Rev. *C
10. Across temperature and voltage ranges, includes output skew.
11. For a specific temperature and voltage, includes output skew.
6.
7.
8.
9.
Fmax
Tpd
FoutDC
Tskew
Tskew(pp)
Tskew(pp)
Tr/Tf
Parameter
Parameters are guaranteed by design and characterization. Not 100% tested in production. All parameters specified with loaded outputs.
Outputs driving 50 transmission lines.
Outputs loaded with 15 pF each.
See Figure 1.
Input Frequency
PECL_CLK to Q Delay
Output Duty Cycle
Output-to-Output Skew
Part-to-Part Skew
Part-to-Part Skew
Output Clocks Rise/Fall
Time
[6]
Z = 50 ohm
Differential
Generator
(V
Figure 1. PECL_CLK CY29943 Test Reference for V
Pulse
[7, 8]
DD
= 3.3V ±5% or 2.5V ±5%, V
Description
PECL_CLK
PECL_CLK
Figure 2. Propagation Delay (TPD) Test Reference
[10]
[11]
[7, 8, 9]
Q
Zo = 50 ohm
Zo = 50 ohm
[7, 8]
[7, 8]
VTT
R
T
= 50 ohm
V
V
V
V
0.8V to 2.0V,
V
0.5V to 1.8V,
V
DD
DD
DD
DD
DD
DD
DDC
t
PD
V
= 3.3V
= 2.5V
= 3.3V
= 2.5V
= 3.3V
= 2.5V
PP
= 3.3V ±5% or 2.5V ±5%, over the specified temperature range)
CY29943 DUT
Conditions
CC
= 3.3V and V
GND
VCC
V
VCC /2
CMR
Zo = 50 ohm
Min.
2.0
2.6
0.2
40
R
T
= 50 ohm
CC
= 2.5V
Typ.
3.5
4.0
VTT
Max.
200
200
4.0
5.2
1.7
2.2
1.0
1.1
60
CY29943
Page 4 of 7
MHz
Unit
ns
ps
ns
ns
ns
%