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CY28419 Datasheet(PDF) 14 Page - Cypress Semiconductor

Part No. CY28419
Description  Clock Synthesizer with Differential SRC and CPU Outputs
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Maker  CYPRESS [Cypress Semiconductor]
Homepage  http://www.cypress.com
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CY28419 Datasheet(HTML) 14 Page - Cypress Semiconductor

 
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CY28419
Document #: 38-07444 Rev. *D
Page 14 of 16
Test and Measurement Set-up
For Differential CPU and SRC Output Signals
The following diagram shows lumped test load configurations
for the differential Host Clock Outputs.
CP UT
T
PC B
T
PC B
CP UC
33Ω
33Ω
49 .9 Ω
49 .9 Ω
M eas ur em ent
Po in t
2p F
4 75Ω
IR E F
M eas ur em ent
Po in t
2p F
Figure 7. 0.7V Load Configuration
2.0V
0.8V
3.3V
0V
Tr
Tf
1.5V
3.3V sig n a ls
tD C
P robe
O u tput under T e st
Load C a p
-
-
Figure 8. Lumped Load For Single-ended Output Signals (for AC Parameters Measurement)
Table 10. CPU Clock Current Select Function
Board Target Trace/Term Z
Reference R, Iref – VDD (3*Rr)
Output Current
Voh @ Z
50 Ohms
RREF = 475 1%, IREF = 2.32 mA
Ioh = 6*Iref
0.7V @ 50
Ordering Information
Part Number
Package Type
Product Flow
CY28419OC
56-pin Shrunk Small Outline package (SSOP)
Commercial, 0
° to 70°C
CY28419OCT
56-pin Shrunk Small Outline package (SSOP) – Tape and Reel
Commercial, 0
° to 70°C
CY28419ZC
56-pin Thin Shrunk Small Outline package (TSSOP)
Commercial, 0
° to 70°C
CY28419ZCT
56-pin Thin Shrunk Small Outline package (TSSOP) – Tape and Reel Commercial, 0
° to 70°C


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