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CY28408 Datasheet(PDF) 17 Page - Cypress Semiconductor

Part No. CY28408
Description  Clock Synthesizer with Differential CPU Outputs
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Maker  CYPRESS [Cypress Semiconductor]
Homepage  http://www.cypress.com
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CY28408 Datasheet(HTML) 17 Page - Cypress Semiconductor

 
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CY28408
Document #: 38-07617 Rev. **
Page 17 of 19
For Single-Ended Output Signals
Buffer Characteristics
Current Mode CPU Clock Buffer Characteristics
The current mode output buffer detail and current reference
circuit details are contained in the previous table of this data
sheet. The following parameters are used to specify output
buffer characteristics:
1. Output impedance of the current mode buffer circuit – Ro
(see Figure 14).
2. Minimum and maximum required voltage operation range
of the circuit – Vop (see Figure 14).
3. Series resistance in the buffer circuit – Ros (see Figure 14).
4. Current accuracy at given configuration into nominal test
load for given configuration.
2.4V
0.4V
3.3V
0V
Tr
Tf
1.5V
3.3V signals
tDC
Probe
Output under Test
Load Cap
-
-
Figure 13.
1.2V
0V
Iout
Iout
Ros
Ro
VDD3 (3.3V +/- 5%)
Vout = 1.2V max
Vout
Slope ~ 1/R
0
Figure 14.


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