CY2308SI-1 Cypress Semiconductor Corp, CY2308SI-1 Datasheet - Page 4

• Manufacturer Part Number: CY2308SI-1
• Description: IC CLK ZDB 8OUT 133MHZ 16SOIC
• Manufacturer: Cypress Semiconductor Corp
• Type: Fanout Distribution, Zero Delay Bufferr

Specifications of CY2308SI-1

• Pll: Yes with Bypass
• Input: LVCMOS, LVTTL
• Output: LVCMOS
• Number Of Circuits: 1
• Ratio - Input:output: 1:8
• Differential - Input:output: No/No
• Frequency - Max: 133.3MHz
• Divider/multiplier: No/No
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Frequency-max: 133MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1351

Available CY2308 Configurations
Zero Delay and Skew Control
To close the feedback loop of the CY2308, the user has to
connect any one of the eight available output pins to FBK pin.
The output driving the FBK pin drives a total load of 7 pF plus
any additional load that it drives. The relative loading of this
output to the remaining outputs adjusts the input-output delay as
shown in the
For applications requiring zero input-output delay, all outputs
including the one providing feedback is equally loaded.
Document Number: 38-07146 Rev. *L
Notes
CY2308–1
CY2308–1H
CY2308–2
CY2308–2
CY2308–3
CY2308–3
CY2308–4
CY2308–5H
5. User has to select one of the available outputs that drive the feedback pin and need to connect selected output pin to FBK pin externally.
6. Output phase is indeterminant (0° or 180° from input clock). If phase integrity is required, use CY2308–2.
Figure 2. REF. Input to CLKA/CLKB Delay Versus Difference in Loading Between FBK Pin and CLKA/CLKB Pins
Device
Figure
2.
Bank A or Bank B
Bank A or Bank B
Bank A
Bank B
Bank A
Bank B
Bank A or Bank B
Bank A or Bank B
Feedback From
[5]
Reference
Reference
Reference
2 x Reference
2 x Reference
4 x Reference
2 x Reference
Reference /2
Bank A Frequency
If input-output delay adjustments are required, use the
Delay and Skew Control
between the feedback output and remaining outputs.
For zero output-output skew, outputs are loaded equally. For
further information on using CY2308, refer to the application note
CY2308: Zero Delay
Reference
Reference
Reference/2
Reference
Reference
2 x Reference
2 x Reference
Reference /2
Buffer-AN1234.
graph to calculate loading differences
[6]
Bank B Frequency
CY2308
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Zero
[+] Feedback