CY25568SXC Cypress Semiconductor Corp, CY25568SXC Datasheet - Page 4

• Manufacturer Part Number: CY25568SXC
• Description: IC CLOCK GEN 3.3V SS 16-SOIC
• Manufacturer: Cypress Semiconductor Corp
• Type: Clock/Frequency Synthesizer, Fanout Distribution, Frequency Modulator, Spread Spectrum Clock Generatorr

Specifications of CY25568SXC

• Number Of Circuits: 1
• Package / Case: 16-SOIC (3.9mm Width)
• Pll: Yes
• Input: Clock, Crystal, Resonator
• Output: Clock
• Ratio - Input:output: 1:4
• Differential - Input:output: No/No
• Frequency - Max: 128MHz
• Divider/multiplier: Yes/Yes
• Voltage - Supply: 2.9 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Frequency-max: 128MHz
• Maximum Input Frequency: 32 MHz
• Minimum Input Frequency: 4 MHz
• Output Frequency Range: 4 MHz to 128 MHz
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.9 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 428-2224-5; CY25568SXC

Input Frequency Range and Selection
The CY25568 input frequency range is 4 to 32 MHz. This range is divided into 3 segments and controlled by 3-Level FRSEL pin as
given in
Table 1. Input Frequency Selection
Output Clocks
The CY25568 provides 4 separate output clocks, REFOUT, SSCLK1, SSCLK2 and SSCLK3, for use in a wide variety of applications.
Each clock output is described in detail.
REFOUT
REFOUT is a 3.3-volt CMOS level non-modulated copy of the clock at XIN/CLKIN.
SSCLK1, 2 and 3
SSCLK1, SSCLK2 and SSCLK3 are Spread Spectrum clock outputs used for the purpose of reducing EMI in digital systems. Each
clock can drive separate nets with a capacitive load of up to 20 pF.
The frequency function of these clock outputs are selected by using 3-Level D0 and D1 digital inputs and are given in
Table 2. Output Clocks Function Selection
REF is the same non-modulated frequency as the input clock.
1x, 2x, or 4x are modulated and multiplied (in the case of 2x and 4x) frequency of the input clock.
Document Number: 38-07111 Rev. *C
D0
M
M
M
FRSEL
0
0
0
1
1
1
M
Table
0
1
1.
D1
M
M
M
0
1
0
1
0
1
INPUT FREQUENCY RANGE
16.0 to 32.0 MHz
8.0 to 16.0 MHz
4.0 to 8.0 MHz
REFOUT
REF
REF
REF
REF
REF
REF
REF
REF
REF
SSCLK1
REF
REF
REF
REF
REF
REF
1x
1x
1x
SSCLK2
REF
1x
2x
2x
1x
2x
4x
2x
2x
SSCLK3
CY25568
REF
Table
1x
2x
2x
2x
4x
4x
4x
4x
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