CY25100ZXI31 Cypress Semiconductor Corp, CY25100ZXI31 Datasheet - Page 3

• Manufacturer Part Number: CY25100ZXI31
• Description: IC FLD/FACTORY PROG SSCLK 8TSSOP
• Manufacturer: Cypress Semiconductor Corp
• Type: Fanout Distribution, Spread Spectrum Clock Generatorr

Specifications of CY25100ZXI31

• Number Of Circuits: 1
• Package / Case: 8-TSSOP
• Pll: Yes
• Input: CMOS, Crystal
• Output: CMOS
• Ratio - Input:output: 1:2
• Differential - Input:output: No/No
• Frequency - Max: 200MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.13 V ~ 3.45 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Frequency-max: 200MHz
• Maximum Input Frequency: 166 MHz
• Minimum Input Frequency: 8 MHz
• Output Frequency Range: 3 MHz to 200 MHz
• Supply Voltage (max): 3.45 V
• Supply Voltage (min): 3.13 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: CY3690 - SOCKET ADAPTER FOR CY25100CY3691 - SOCKET ADAPTER FOR CY25100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

provides the ability to program the CY25100SXCF and
CY25100SXIF (SOIC). The CY3690 and CY3691 are separate
orderable items, so the existing users of the CY3672
programmer need to order only the specific socket adapter to
program the CY25100.
Factory Programmable CY25100
Factory programming by Cypress is available for high volume
orders. All requests must be submitted to the local Cypress Field
Application Engineer (FAE) or sales representative. After the
request is processed, you will receive a new part number,
samples, and data sheet with the programmed values. This part
number is used for additional sample requests and production
orders.
Product Functions
Input Frequency (XIN, Pin 3 and XOUT, Pin 2)
The input to the CY25100 can be a crystal or a clock. The input
frequency range for crystals is 8 to 30 MHz, and for clock signals
is 8 to 166 MHz.
C
The CY25100 has internal load capacitors at Pin 3 (C
Pin 2 (C
mable from 12 pF to 60 pF, in 0.5 pF increments.This feature
eliminates the need for external crystal load capacitors.
The following formula is used to calculate the value of C
C
C
where C
manufacturer and C
node of the crystal.
For example, if a crystal with C
C
Document #: 38-07499 Rev. *H
XOUT
XIN
XIN
XIN
= C
and C
and C
for matching the crystal load (C
XOUT
L
XOUT
is the crystal load capacitor as specified by the crystal
XOUT
XOUT
) C
= 2C
XIN
are calculated as:
(Pin 3 and Pin 2)
always equals C
L
P
– C
is the parasitic PCB capacitance on each
P
L
of 16 pF is used, and C
XOUT
L
):
, and they are program-
P
XIN
XIN
is 2 pF,
) and
and
C
If using a driven reference, set C
value 12 pF, connect the reference to XIN/CLKIN, and leave
XOUT unconnected.
Output Frequency (SSCLK, Pin 7)
The modulated frequency at the SSCLK output is produced by
synthesizing the input reference clock. The modulation can be
stopped by SSON# digital control input (SSON# = HIGH, no
modulation). If modulation is stopped, the clock frequency is the
nominal value of the synthesized frequency without modulation
(spread percentage = 0). The range of synthesized clock is from
3 to 200 MHz.
Spread Percentage (SSCLK, Pin 7)
The SSCLK spread can be programmed at any percentage value
from ±0.25% to ±2.5% for center spread and from –0.5% to
–5.0% for down spread.
Reference Output (REFOUT, Pin 6)
The reference clock output has the same frequency and the
same phase as the input clock. This output can be programmed
to be enabled (clock on) or disabled (High Z, clock off). If this
output is not required, it is recommended that the disabled (High
Z, Clock Off) option be selected.
Modulation Frequency
The modulation frequency is 31.5 kHz for all SSCLK frequencies
from 3 to 200 MHz.
Power Down or Output Enable (PD# or OE, Pin 4)
The part can be programmed to include either PD# or OE
function. PD# function powers down the oscillator and PLL. The
OE function disables the outputs.
XIN
= C
XOUT
= (2 x 16) – 2 = 30 pF
XIN
and C
XOUT
to the minimum
CY25100
Page 3 of 14
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