nb2305a ON Semiconductor, nb2305a Datasheet - Page 5

• Manufacturer Part Number: nb2305a
• Description: 3.3 V Zero Delay Clock Buffer
• Manufacturer: ON Semiconductor

Zero Delay and Skew Control
Delay between input and output. Since the CLKOUT pin is
the internal feedback to the PLL, its relative loading can
adjust the input-output delay.
OUTPUT
OUTPUT
All outputs should be uniformly loaded to achieve Zero
Figure 5. Output - Output Skew
1.4 V
t
Figure 3. Duty Cycle Timing
5
1.4 V
CLKOUT, Device 1
CLKOUT, Device 2
t
2
1.4 V
1.4 V
t
1
1.4 V
t
7
V
Figure 7. Device - Device Skew
2
DD
SWITCHING WAVEFORMS
http://onsemi.com
V
NB2305A
2
DD
OUTPUT
5
outputs, including CLKOUT, must be equally loaded. Even
if CLKOUT is not used, it must have a capacitive load equal
to that on other outputs, for obtaining zero-input-output
delay.
For applications requiring zero input-output delay, all
OUTPUT
INPUT
Figure 4. All Outputs Rise/Fall Time
t
0.8 V
3
2.0 V
Figure 6. Input - Output Propagation Delay
t
6
V
2
DD
V
2.0 V
2
DD
0.8 V
t
4
0 V
3.3 V