CY25200:Programmable Spread Spectrum Clock Generator for EMI Reduction

CY25200
Programmable Spread Spectrum
Clock Generator for EMI Reduction
Programmable Spread Spectrum Clock Generator for EMI Reduction
Features
Description
■
Wide Operating Output (SSCLK) Frequency Range
❐ 3 to 200 MHz
■
Programmable Spread Spectrum with Nominal 31.5 kHz
modulation Frequency
■
Center Spread: ±0.25% to ±2.5%
■
Down Spread: –0.5% to –5.0%
■
Input Frequency Range
❐ External crystal: 8 to 30 MHz fundamental crystals
❐ External reference: 8 to 166 MHz clock
The CY25200 is a programmable clock generator with spread
spectrum capability. Spread spectrum modulates the output
clock frequency over a small range, spreading the energy and
reducing the energy peak. This is a powerful technique to reduce
EMI in a variety of applications.
It uses either an external reference clock or a crystal for an input.
It also uses a PLL to generate a spread spectrum output clock
that can be a different frequency than the input. Up to six output
clocks are available and up to two of them can be REFCLKs
(copies of the input clock, without spread).
The CY25200 is highly configurable. Programmable variables
include the input and output frequencies, spread percentage,
center spread or down spread, and control pin functions. The
oscillator pin capacitance can also be programmed to match the
load capacitance requirement (CL) of the crystal, eliminating the
need for external capacitors.
■
Integrated Phase-Locked Loop (PLL)
■
Programmable Crystal Load Capacitor Tuning Array
■
Low Cycle-to-Cycle Jitter
■
3.3 V Operation with 2.5 V Output Clock Drive Option
■
Spread Spectrum On and Off Function
■
Power Down or Output Enable Function
■
Output Frequency Select Option
■
Field-Programmable
Cypress’ web-based CyberClocks Online software is used to
configure the device. Programmability enables fast prototyping,
which is particularly useful when doing EMC testing and
determining the optimal spread settings.
■
Package: 16-pin TSSOP
For a complete list of related documentation, click here.
Available features include Output Enable, Power Down, Spread
On/Off, Frequency Select, and the option to power some output
clocks at 2.5 V.
Logic Block Diagram
7
Divider
Bank 1
XIN/CLKIN 1
OSC.
Q
VCO
XOUT 16
CXOUT
P
CXIN
8 SSCLK2
Output
Select
Matrix

SSCLK1
9
SSCLK3
12 SSCLK4
Divider
Bank 2
PLL
14 SSCLK5/REFOUT/CP2
15 SSCLK6/REFOUT/CP3
2
VDD
Cypress Semiconductor Corporation
Document Number: 38-07633 Rev. *K
•
3
AVDD
5
AVSS
13
VSS
11
VDDL
198 Champion Court
6
VSSL
•
4
CP0
10
CP1
San Jose, CA 95134-1709
•
408-943-2600
Revised January 14, 2015
CY25200
Contents
Pin Configuration ............................................................. 3
Pin Description ................................................................. 3
General Description ......................................................... 4
Programming Description ............................................... 4
Field-Programmable CY25200 .................................. 4
CyberClocks Online Software ................................... 4
Factory-Programmed CY25200 .................................. 4
Product Functions ............................................................ 5
Control Pins (CP0, CP1, CP2 and CP3) ..................... 5
Example ...................................................................... 5
CLKSEL ....................................................................... 5
Input Frequency (XIN, Pin 1 and XOUT, Pin 16) ......... 5
CXIN and CXOUT (Pin 1 and Pin 16) ......................... 5
Output Frequency
(SSCLK1 through SSCLK6 Outputs) .................................. 5
Spread Percentage
(SSCLK1 to SSCLK6 Outputs) ........................................... 6
Modulation Frequency ................................................. 6
Switching Waveforms ...................................................... 7
Informational Graphs ....................................................... 8
Document Number: 38-07633 Rev. *K
Absolute Maximum Ratings ............................................ 9
Recommended Crystal Specifications ........................... 9
Recommended Operating Conditions ............................ 9
DC Electrical Specifications .......................................... 10
AC Electrical Specifications .......................................... 11
Ordering Information ...................................................... 13
Possible Configurations ............................................. 13
Ordering Code Definitions ......................................... 13
Package Drawing and Dimensions ............................... 14
Acronyms ........................................................................ 15
Document Conventions ................................................. 15
Units of Measure ....................................................... 15
Document History Page ................................................. 16
Sales, Solutions, and Legal Information ...................... 17
Worldwide Sales and Design Support ....................... 17
Products .................................................................... 17
PSoC® Solutions ...................................................... 17
Cypress Developer Community ................................. 17
Technical Support ..................................................... 17
Page 2 of 17
CY25200
Pin Configuration
Figure 1. 16-pin TSSOP pinout
Pin Description
Table 1. Pin Summary
Name
Pin Number
Description
XIN
1
Crystal input or Reference Clock input
XOUT
16
Crystal output. Leave this pin floating if external clock is used
VDD
2
3.3 V power supply for digital logic and SSCLK5 and 6 clock outputs
AVDD
3
3.3 V analog–PLL power supply
VSS
13
Ground
AVSS
5
Analog ground
VDDL
11
2.5 V or 3.3 V power supply for SSCLK1/2/3/4 clock outputs
VSSL
6
VDDL power supply ground
SSCLK1
7
Programmable spread spectrum clock output at VDDL level (2.5 V or 3.3 V)
SSCLK2
8
Programmable spread spectrum clock output at VDDL level (2.5 V or 3.3 V)
SSCLK3
9
Programmable spread spectrum clock output at VDDL level (2.5 V or 3.3 V)
SSCLK4
12
Programmable spread spectrum clock output at VDDL level (2.5 V or 3.3 V)
SSCLK5/REFOUT/CP2
14
Programmable spread spectrum clock or buffered reference output at VDD level (3.3 V)
or control pin, CP2
SSCLK6/REFOUT/CP3
15
Programmable spread spectrum clock or buffered reference output at VDD level (3.3 V)
or control pin, CP3
CP0[1]
4
Control pin 0
CP1[1]
10
Control pin 1
Note
1. Pins are programmed to be any of the following control signals: OE: Output Enable, OE = 1, all the SSCLK outputs are enabled; PD#: Power down, PD# = 0, all the
SSCLK outputs are three-stated and the part enters a low power state; SSON: Spread Spectrum Control (SSON = 0, No Spread and SSON = 1, Spread Signal),
CLKSEL: SSCLK Output Frequency Select.See Control Pins (CP0, CP1, CP2 and CP3) for control pins programming options.
Document Number: 38-07633 Rev. *K
Page 3 of 17
CY25200
Table 2. Fixed Function Pins
Pin Function
Output Clock Frequency
Input Frequency
CXIN and CXOUT
Spread Percent
Modulation
Frequency
Pin Name
SSCLK[1:6]
XIN and XOUT
XIN and XOUT
SSCLK[1:6]
SSCLK[1:6]
Pin#
7, 8, 9, 12, 14, 15
1 and 16
1 and 16
7, 8, 9, 12, 14, 15
7, 8, 9, 12, 14, 15
Units
MHz
MHz
pF
% and Center- or
Down-spread
kHz
Program Value
CLKSEL = 0
USER SPECIFIED
USER SPECIFIED
USER SPECIFIED
Program Value
CLKSEL = 1
USER SPECIFIED
USER SPECIFIED USER SPECIFIED
Table 3. Multi-Function Pins
Pin Function
Pin Name
Output Clock/REFOUT/OE/SSON/CLKSEL
SSCLK5/REFOUT/CP2
SSCLK6/REFOUT/CP3
OE/PD#/SSON/CLKSEL
CP0
CP1
Pin#
14
15
4
10
Units
Function
Function
Function
Function
USER SPECIFIED
USER SPECIFIED
USER SPECIFIED
USER SPECIFIED
General Description
Programming Description
The CY25200 is a Spread Spectrum Clock Generator (SSCG) IC
used to reduce Electro Magnetic Interference (EMI) found in
today’s high speed digital electronic systems.
Field-Programmable CY25200
The device uses a Cypress proprietary Phase-Locked Loop
(PLL) and Spread Spectrum Clock (SSC) technology to
synthesize and modulate the frequency of the input clock. By
frequency modulating the clock, the measured EMI at the
fundamental and harmonic frequencies are reduced. This
reduction in radiated energy significantly reduces the cost of
complying with regulatory agency requirements (EMC) and
improves time to market, without degrading system
performance.
The CY25200 uses a factory and field-programmable
configuration memory array to synthesize output frequency,
spread %, crystal load capacitor, clock control pins, PD#, and OE
options.
The spread % is factory and field-programmed to either center
spread or down spread with various spread percentages. The
range for center spread is from ±0.25% to ±2.50%. The range for
down spread is from –0.5% to –5.0%. Contact the factory for
smaller or larger spread % amounts, if required.
The input to the CY25200 is either a crystal or a clock signal. The
input frequency range for crystals is 8 to 30 MHz and for clock
signals is 8 to 166 MHz.
The CY25200 has six clock outputs, SSCLK1 to SSCLK6. The
frequency modulated SSCLK outputs are programmed from 3 to
200 MHz.
The CY25200 products are available in a 16-pin TSSOP
package with a commercial operating temperature range of 0 to
70 C.
Document Number: 38-07633 Rev. *K
The CY25200 is programmed at the package level, and must be
programmed prior to installation on a circuit board. Field
programmable devices are denoted by an “F” in the ordering
code, and are blank when shipped. The CY25200 is Flash
technology based, which allows it to be reprogrammed up to 100
times. This allows for fast and easy design changes and product
updates, and eliminates issues with old and out of date inventory.
Samples and small prototype quantities are programmed on the
CY3672 programmer with the CY3695 socket adapter.
CyberClocks Online Software
CyberClocks Online Software is a web based software
application that allows the user to custom configure the
CY25200. All the parameters in Table 2 and Table 3 are entered
as variables into the software. CyberClocks Online outputs an
industry standard JEDEC file used for programming the
CY25200.
CyberClocks
Online
is
available
at
www.cyberclocksonline.com website.
Factory-Programmed CY25200
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.
Page 4 of 17
CY25200
Product Functions
Control Pins (CP0, CP1, CP2 and CP3)
Four control signals are available through programming of pins
4, 10, 14, and 15.
CP0 (pin 4) and CP1 (pin10) are specifically designed to function
as control pins. However, pins 14 (SSCLK5/REFOUT/CP2) and
15 (SSCLK6/REFOUT/CP3) are multi-functional and can be
programmed to be either a control signal or an output clock
(SSCLK or REFOUT). All of the control pins, CP0, CP1, CP2,
and CP3 are programmable to one of the following functions:
■
OE (Output Enable): if OE = 1, all SSCLK and REFOUT outputs
are enabled.
■
SSON (Spread spectrum control): if SSON = 1, spread is on;
if SSON = 0, spread is off.
■
CLKSEL (Clock select): frequency select for all SSCLK outputs.
■
PD# (Power Down; active low): if PD# = 0, all the outputs are
three-stated and the part enters a low power state.
Note that the PD# function is available only on CP0 or CP1; it is
not available on CP2 or CP3.
Example
Here is an example with three control pins:
frequencies that are derived off of a common PLL frequency.
Specifically, CLKSEL does not change the PLL frequency. It only
changes the output divider. For instance, 33.333 MHz and
66.666 MHz are both derived from a PLL frequency of 400 MHz,
by dividing it down by 12 and 6 respectively. Table 4 on page 6
shows an example of how this is implemented. The PLL
frequency range is 100 to 400 MHz. The two output dividers in
the CY25200 can be any integer between 2 and 130, providing
two different but related frequencies as explained above.
Table 4 on page 6 and Figure 3 on page 6 show an example
configuration using the frequencies just described. In this
example, the configurable pins SSCLK5 (pin 14) and SSCLK6
(pin 15) are used as output clocks.
Input Frequency (XIN, Pin 1 and XOUT, Pin 16)
The input to the CY25200 is a crystal or a clock. The input
frequency range for crystals is 8 to 30 MHz, and for clock signal
is 8 to 166 MHz.
CXIN and CXOUT (Pin 1 and Pin 16)
The CY25200 has internal load capacitors at pin 1 (CXIN) and
pin 16 (CXOUT). CXIN always equals CXOUT, and they are
programmable 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 CXIN and
CXOUT for matching the crystal load (CL):
■
CLKIN = 33 MHz
CXIN = CXOUT = 2CL – CP
■
SSCLK1/2/3/4 = 100 MHz with ±1% spread
■
SSCLK 5 = REFOUT(33 MHz)
Where CL is the crystal load capacitor as specified by the crystal
manufacturer and CP is the parasitic PCB capacitance on each
node of the crystal.
■
CP0 (pin 4) = PD#
■
CP1 (pin 10) = OE
■
CP3 (pin 15) = SSON
For example, if a crystal with CL of 16 pF is used, and CP is 2 pF,
CXIN and CXOUT is calculated as:
CXIN = CXOUT = (2 × 16) – 2 = 30 pF.
The pinout for the above example is shown in Figure 2.
Figure 2. Example Pin Diagram
33.0MHz
VDD
1
16
NC
2
15
AVDD
3
14
PD#
4
13
SSON
REFOUT(33.0MHz)
VSS
AVSS
5
12
100MHz
VSSL
6
11
VDDL
100MHz
7
10
OE
100MHz
8
9
100MHz
CLKSEL
The CLKSEL control pin enables you to select between two
different SSCLK output frequencies. These must be related
Document Number: 38-07633 Rev. *K
If using a driven reference clock, set CXIN and CXOUT to the
minimum value 12 pF, connect the reference to XIN/CLKIN, and
leave XOUT unconnected.
Output Frequency (SSCLK1 through SSCLK6
Outputs)
All the SSCLK outputs are produced by synthesizing the input
reference frequency using a PLL and modulating the VCO
frequency. SSCLK[1:4] are fixed function output clocks (SSCLK).
SSCLK5 and SSCLK6 are also programmable to function the
same as SSCLK[1:4], or as buffered copies of the input reference
(REFOUT), or as control pin as discussed in Control Pins (CP0,
CP1, CP2 and CP3). To use the 2.5 V output drive option on
SSCLK[1:4], VDDL must be connected to a 2.5 V power supply
(SSCLK[1:4] outputs are powered by VDDL). When using the
2.5 V output drive option, the maximum output frequency on
SSCLK[1:4] is 166 MHz.
Page 5 of 17
CY25200
Spread Percentage (SSCLK1 to SSCLK6 Outputs)
Modulation Frequency
The SSCLK frequency is programmed to a percentage value
from ±0.25% to ±2.5% for center spread and from –0.5% to
–5.0% down spread. The granularity is 0.25%.
The default modulation frequency is 31.5 kHz. Other modulation
frequencies available via the configuration software are 30.1 kHz
and 32.9 kHz.
Table 4. Using Clock Select, CLKSEL Control Pin
Input Frequency
(MHz)
CLKSEL
(Pin 4)
SSCLK1
(Pin 7)
SSCLK2
(Pin 8)
SSCLK3
(Pin 9)
SSCLK4
(Pin 12)
REFOUT
(Pin 14)
REFOUT
(Pin 15)
14.318
CLKSEL = 0
33.33
33.33
33.33
33.33
14.318
14.318
CLKSEL = 1
66.66
66.66
66.66
66.66
14.318
14.318
Figure 3. Using Clock Select, CLKSEL Control Pin Configuration pinout
Document Number: 38-07633 Rev. *K
14.318 MHz
1
16
XOUT
VDD
2
15
REFOUT(14.318 MHz)
REFOUT(14.318MHz)
AVDD
3
14
CLKSEL
4
13
VSS
AVSS
5
12
33.33/66.66 MHz
VSSL
6
11
VDDL
33.33/66.66 MHz
7
10
SSON
33.33/66.66 MHz
8
9
33.33/66.66 MHz
Page 6 of 17
CY25200
Switching Waveforms
Figure 4. Duty Cycle Timing (DC = t1A/t1B)
Figure 5. Output Rise and Fall Time (SSCLK and REFCLK)
VDD
OUTPUT
0V
Tr
Tf
Output Rise time (Tr) = (0.6 x VDD)/SR1 (or SR3)
Output Fall time (Tf) = (0.6 x VDD)/SR2 (or SR4)
Refer to AC Electrical Characteristics table for SR (Slew Rate) values.
Figure 6. Power Down and Power Up Timing
POWER
DOWN
VDD
0V
VIH
VIL
tPU
High Impedance
SSCLK
(Asynchronous)
tSTP
Figure 7. Output Enable and Disable Timing
OUTPUT
ENABLE
VDD
0V
VIH
VIL
TOE2
High Impedance
SSCLK
(Asynchronous)
TOE1
Document Number: 38-07633 Rev. *K
Page 7 of 17
CY25200
Informational Graphs
The informational graphs are meant to convey the typical performance levels. No performance specifications is implied or guaranteed.
172.5
171.5
68.5
Spread Spectrum Profile: Fnom=166MHz,
Fmod=30kHz, Spread%= -4%
170.5
169.5
Spread Spectrum Profile: Fnom=66MHz,
Fmod=30kHz, Spread%= -4%
68
67.5
168.5
167.5
166.5
67
66.5
Fnominal
165.5
164.5
163.5
162.5
Fnominal
66
65.5
65
64.5
64
161.5
63.5
160.5
159.5
0
0
20
169.5
169
168.5
168
167.5
167
166.5
166
165.5
165
164.5
164
163.5
163
40
60
80
100
120
Time (us)
140
160
180
20
40
60
80
200
Spread Spectrum Profile: Fnom=166MHz,
Fmod=30kHz, Spread%= +/-1%
67.5
100
120
Time (us)
140
160
180
200
Spread Spectrum Profile: Fnom=66MHz,
Fmod=30kHz, Spread%= +/-1%
67
66.5
Fnominal
Fnominal
66
65.5
65
64.5
162.5
0
20
40
60
80
100 120
Time (us)
Document Number: 38-07633 Rev. *K
140
160
180
200
0
20
40
60
80
100 120
Time (us)
140
160
180
200
Page 8 of 17
CY25200
Junction Temperature ............................. –40 C to +125 C
Absolute Maximum Ratings
Data Retention at Tj = 125 C ..............................> 10 years
Supply Voltage (VDD) ..................................... –0.5 to +7.0 V
Package Power Dissipation ..................................... 350 mW
DC Input Voltage ................................ –0.5 V to VDD + 0.5 V
Static Discharge Voltage
(per MIL-STD-883, Method 3015) ......................... > 2000 V
Storage Temperature
(non-condensing) ..................................... –55 C to +125 C
Recommended Crystal Specifications
Parameter
Description
Comments
Min
Typ
Max
Unit
FNOM
Nominal Crystal Frequency
Parallel resonance, fundamental
mode, AT cut
8
–
30
MHz
CLNOM
Nominal Load Capacitance
Internal load caps
6
–
30
pF
R1
Equivalent Series Resistance
(ESR)
Fundamental mode
–
–
25

R3/R1
Ratio of Third Overtone Mode
Ratio used because typical R1
ESR to Fundamental Mode ESR values are much less than the
maximum specification
3
–
–

DL
Crystal Drive Level
–
0.5
2
mW
No external series resistor assumed
Recommended Operating Conditions
Min
Typ
Max
Unit
VDD
Parameter
Operating Voltage
Description
3.135
3.3
3.465
V
VDDLHI
Operating Voltage
3.135
3.3
3.465
V
VDDLLO
Operating Voltage
2.375
2.5
2.625
V
TAC
Ambient Commercial Temp
0
–
70
C
CLOAD
Maximum Load Capacitance VDD/VDDL = 3.3 V
–
–
15
pF
CLOAD
Maximum Load Capacitance VDDL = 2.5 V
–
–
15
pF
FSSCLK-HighVoltage SSCLK1/2/3/4/5/6 when VDD = AVDD = VDDL = 3.3 V
3
–
200
MHz
FSSCLK-LowVoltage SSCLK1/2/3/4 when VDD = AVDD = 3.3 V and VDDL = 2.5 V
3
–
166
MHz
REFOUT
REFOUT when VDD = AVDD = 3.3 V and VDDL = 3.3 V or 2.5 V
8
–
166
MHz
fREF1
Clock Input
8
–
166
MHz
fREF2
Crystal Input
8
–
30
MHz
tPU
Power up time for all VDDs to reach minimum specified voltage
(power ramps must be monotonic)
0.05
–
500
ms
Document Number: 38-07633 Rev. *K
Page 9 of 17
CY25200
DC Electrical Specifications
Parameter [2]
Min
Typ
Max
Unit
IOH3.3
Output High Current
Name
VOH = VDD – 0.5 V,
VDD/VDDL = 3.3 V
Description
12
24
–
mA
IOL3.3
Output Low Current
VOL = 0.5 V,
VDD/VDDL = 3.3 V
12
24
–
mA
IOH2.5
Output High Current
VOH = VDDL – 0.5 V,
VDDL = 2.5 V
8
16
–
mA
IOL2.5
Output Low Current
VOL = 0.5 V,
VDDL = 2.5 V
8
16
–
mA
VIH
Input High Voltage
CMOS levels, 70% of VDD
0.7
–
1.0
VDD
VIL
Input Low Voltage
CMOS levels, 30% of VDD
0
–
0.3
VDD
IVDD[3]
Supply Current
AVDD/VDD Current
–
–
33
mA
IVDDL2.5[3]
IVDDL3.3[3]
Supply Current
VDDL Current (VDDL = 2.625 V)
–
–
20
mA
Supply Current
VDDL Current (VDDL = 3.465 V)
–
–
26
mA
IDDS
Power Down Current
VDD = VDDL = AVDD = 3.465 V
–
–
50
A
IOHZ
IOLZ
Output Leakage
VDD = VDDL = AVDD = 3.465 V
–
–
10
A
Notes
2. Not 100% tested, guaranteed by design.
3. IVDD currents specified for SSCLK1/2/3/4/5/6 = 33.33 MHz with CLKIN = 14.318 MHz and 15 pF on all the output clocks.
Document Number: 38-07633 Rev. *K
Page 10 of 17
CY25200
AC Electrical Specifications
Parameter
Min
Typ
Max
Unit
Output Duty Cycle
SSCLK, Measured at VDD/2
45
50
55
%
Output Duty Cycle
REFCLK, Measured at VDD/2
Duty Cycle of CLKIN = 50%.
40
50
60
%
SR1
Rising/Falling Edge Slew Rate
SSCLK1/2/3/4 < 100 MHz,
VDD = VDDL = 3.3 V
0.6
–
2.0
V/ns
SR2
Rising/Falling Edge Slew Rate
SSCLK1/2/3/4 100 MHz,
VDD = VDDL = 3.3 V
0.8
–
3.5
V/ns
SR3
Rising/Falling Edge Slew Rate
SSCLK1/2/3/4 < 100 MHz,
VDD = VDDL = 2.5 V
0.5
–
2.2
V/ns
SR4
Rising/Falling Edge Slew Rate
SSCLK1/2/3/4 100 MHz,
VDD = VDDL = 2.5 V
0.6
–
3.0
V/ns
SR5
Rising/Falling Edge Slew Rate
SSCLK5/6 < 100 MHz,
VDD = VDDL = 3.3 V
0.6
–
1.9
V/ns
SR6
Rising/Falling Edge Slew Rate
SSCLK5/6 100 MHz,
VDD = VDDL = 3.3 V
1.0
–
2.9
V/ns
TCCJ1
Cycle-to-Cycle Jitter
SSCLK1/2/3/4
CLKIN = SSCLK1/2/3/4 = 166 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = VDDL = 3.3 V
–
–
110
ps
CLKIN = SSCLK1/2/3/4 = 66.66 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = VDDL = 3.3 V
–
–
170
ps
CLKIN = SSCLK1/2/3/4 = 33.33 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = VDDL = 3.3 V
–
–
140
ps
CLKIN = SSCLK1/2/3/4 = 14.318 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = VDDL = 3.3 V
–
–
290
ps
CLKIN = SSCLK1/2/3/4 = 166 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = VDDL = 3.3 V
–
–
100
ps
CLKIN = SSCLK1/2/3/4 = 66.66 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = VDDL = 3.3 V
–
–
120
ps
CLKIN = SSCLK1/2/3/4 = 33.33 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = VDDL = 3.3 V
–
–
180
ps
CLKIN = SSCLK1/2/3/4 = 14.318 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = VDDL = 3.3 V
–
–
180
ps
DC
TCCJ2
Description
Cycle-to-Cycle Jitter
SSCLK5/6=REFOUT
Document Number: 38-07633 Rev. *K
Condition
Page 11 of 17
CY25200
AC Electrical Specifications (continued)
Parameter
TCCJ3
Description
Cycle-to-Cycle Jitter
SSCLK1/2/3/4
Min
Typ
Max
Unit
CLKIN = SSCLK1/2/3/4 = 166 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = 3.3 V, VDDL = 2.5 V
Condition
–
–
110
ps
CLKIN = SSCLK1/2/3/4 = 66.66 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = 3.3 V, VDDL = 2.5 V
–
–
170
ps
CLKIN = SSCLK1/2/3/4 = 33.33 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = 3.3 V, VDDL = 2.5 V
–
–
190
ps
CLKIN = SSCLK1/2/3/4 = 14.318 MHz,
±2% spread and
SSCLK5/6 = REFOUT,
VDD = 3.3 V, VDDL = 2.5 V
–
–
330
ps
TSTP
Power Down Time
Time from falling edge on PD# to
stopped outputs (Asynchronous)
–
150
300
ns
TOE1
Output Disable Time
Time from falling edge on OE to
stopped outputs (Asynchronous)
–
150
300
ns
TOE2
Output Enable Time
Time from rising edge on OE to outputs
at a valid frequency (Asynchronous)
–
150
300
ns
FMOD
Spread Spectrum Modulation
Frequency
SSCLK1/2/3/4/5/6
30.0
31.5
33.0
kHz
TPU1
Power Up Time,
Crystal is used
Time from rising edge on PD# to
outputs at valid frequency
(Asynchronous)
–
3
5
ms
TPU2
Power Up Time,
Reference clock is used
Time from rising edge on PD# to
outputs at valid frequency
(Asynchronous)
–
2
3
ms
TSKEW [4]
Clock Skew
Output to output skew between related
clock outputs. Measured at VDD/2.
–
–
250
ps
Note
4. Skew and phase alignment is guaranteed within all SSCLK outputs and within both REFOUT outputs. All SSCLK outputs are related, and all REOUT outputs are
related, but SSCLK and REFOUT outputs are not related to each other.
Document Number: 38-07633 Rev. *K
Page 12 of 17
CY25200
Ordering Information
Ordering Code
Package Type
Programming Operating Temperature Range
CY25200KFZXC
16-pin TSSOP (Pb-free)
Field
Commercial, 0 C to 70 C
CY25200KFZXCT
16-pin TSSOP – Tape and Reel (Pb-free)
Field
Commercial, 0 C to 70 C
CY25200KFZXI
16-pin TSSOP (Pb-free)
Field
Industrial, –40 C to 85 C
CY25200KFZXIT
16-pin TSSOP – Tape and Reel (Pb-free)
Field
Industrial, –40 C to 85 C
CY3672-USB
Programmer for Field Programmable Devices
N/A
N/A
CY3695
CY22050/CY22150/CY25200 Socket Adapter
for CY3672-USB
N/A
N/A
Programmer
Some product offerings are factory programmed customer specific devices with customized part numbers. The Possible Configurations table shows the available device types, but not complete part numbers. Contact your local Cypress FAE or Sales Representative
for more information.
Possible Configurations
Ordering Code [5]
Package Type
Programming Operating Temperature Range
CY25200ZXC-xxx
16-pin TSSOP (Pb-free)
Factory
Commercial, 0 C to 70 C
CY25200ZXC-xxxT
16-pin TSSOP – Tape and Reel (Pb-free)
Factory
Commercial, 0 C to 70 C
CY25200ZXI-xxx
16-pin TSSOP (Pb-free)
Factory
Industrial, –40 C to 85 C
CY25200ZXI-xxxT
16-pin TSSOP – Tape and Reel (Pb-free)
Factory
Industrial, –40 C to 85 C
Ordering Code Definitions
CY 25200K X
Z
X
X - xxxw
X
X = blank or T
blank = Tube; T = Tape and Reel
Custom Configuration Code (Factory Programmed Device only)
Temperature Range: X = C or I
C = Commercial; I = Industrial
X = Pb-free
Package: Z = 16-pin TSSOP
Programming: X = F or blank
F = Field Programmable; blank = Factory Programmed
Device part number
Company ID: CY = Cypress
Note
5. “xxx” denotes a specific device configuration, and is referred to as the “dash number”. “w” denotes the configuration revision.
Document Number: 38-07633 Rev. *K
Page 13 of 17
CY25200
Package Drawing and Dimensions
Figure 8. 16-pin TSSOP (4.40 mm Body) Z16.173/ZZ16.173 Package Outline, 51-85091
51-85091 *E
Table 5. 16-pin TSSOP Package Characteristics
Parameter
Name
Value
Unit
JA
theta JA
115
C/W
Document Number: 38-07633 Rev. *K
Page 14 of 17
CY25200
Acronyms
Acronym
Document Conventions
Description
CMOS
Complementary Metal Oxide Semiconductor
EMC
Electromagnetic Compatibility
EMI
Electromagnetic Interference
FAE
Field Application Engineer
OE
Output Enable
OSC
Oscillator
PLL
Phase Locked Loop
SSC
Spread Spectrum Clock
SSCG
Spread Spectrum Clock Generator
TSSOP
Thin Shrunk Small Outline Package
Document Number: 38-07633 Rev. *K
Units of Measure
Symbol
°C
Unit of Measure
degree Celsius
k
kilohm
kHz
kilohertz
MHz
megahertz
µA
microampere
ms
millisecond
mW
milliwatt
ns
nanosecond

ohm
%
percent
pF
picofarad
ps
picosecond
V
volt
Page 15 of 17
CY25200
Document History Page
Document Title: CY25200, Programmable Spread Spectrum Clock Generator for EMI Reduction
Document Number: 38-07633
Rev.
ECN No.
Orig. of
Change
Submission
Date
**
204243
RGL
See ECN
Description of Change
New data sheet.
*A
220043
RGL
See ECN
Minor Change: Corrected letter assignment in the ordering info for Pb free.
*B
267832
RGL
See ECN
Added Field Programmable Devices and Functionality
*C
291094
RGL
See ECN
Added tSKEW spec. and footnote
*D
1821908
DPF /
AESA
See ECN
Corrected FSSCLK-Low Voltage specification on page 7 for SSCLK5/6 to
SSCLK1/2/3/4, as SSCLK5/6 output does not operate at low voltage.
Deleted Tccj4 on page 8 for the same reason as above
*E
2442066
KVM /
AESA
See ECN
Updated template. Added Note “Not recommended for new designs.”
Added part number CY25200KZXC_XXXW, CY25200KZXC_XXXWT,
CY25200KFZXC in ordering information table. Changed package name to
ZZ16.
*F
2758387
KVM /
AESA
09/01/2009
Extensive text edits
Replaced Benefits column on page 1 with Description
Revised Table 2 and Table 3 for clarity
Revised the Modulation Frequency paragraph to align with actual software
options and to delete mention of custom frequencies
Corrected 3.3V IOL and IOH values,
Filled in missing units in AC Electrical table
Revised TSKEW footnote for clarity
Removed specific PD# and OE pin nos. from parameters TSTP, TOE1 and TOE2
Standardized timing parameter names to upper case
Corrected part numbers in Ordering Information Table
Removed part number CY25200FZXCT
Added part number CY25200KFZXCT
Replaced CY3672 and CY3672-PRG with CY3672-USB
*G
2897246
KVM
03/22/10
Removed inactive parts from Ordering Information table. Added note regarding
possible configurations in Ordering Information section. Removed Note 6.
Added Possible Configurations table.
Updated Package Drawing and Dimensions.
*H
3103982
BASH
07/12/2010
Added Ordering Code Definitions.
Updated Package Drawing and Dimensions.
Added Acronyms and Units of Measure.
Minor edits.
Updated to new template.
*I
4209874
CINM
12/16/2013
Updated Ordering Information:
Updated part numbers.
Updated Possible Configurations:
Updated part numbers.
Updated Package Drawing and Dimensions:
spec 51-85091 – Changed revision from *C to *D.
Updated to new template.
Completing Sunset Review.
*J
4581659
AJU
11/28/2014
Added related documentation hyperlink in page 1.
Updated Package Drawing and Dimensions.
*K
4623539
TAVA
01/14/2015
Updated Ordering Information:
Updated Possible Configurations:
Updated details in “Ordering Code” column.
Document Number: 38-07633 Rev. *K
Page 16 of 17
CY25200
Sales, Solutions, and Legal Information
Worldwide Sales and Design Support
Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office
closest to you, visit us at Cypress Locations.
PSoC® Solutions
Products
Automotive
Clocks & Buffers
Interface
Lighting & Power Control
cypress.com/go/automotive
cypress.com/go/clocks
cypress.com/go/interface
cypress.com/go/powerpsoc
cypress.com/go/plc
Memory
cypress.com/go/memory
PSoC
cypress.com/go/psoc
Touch Sensing
PSoC 1 | PSoC 3 | PSoC 4 | PSoC 5LP
Cypress Developer Community
Community | Forums | Blogs | Video | Training
Technical Support
cypress.com/go/support
cypress.com/go/touch
USB Controllers
Wireless/RF
psoc.cypress.com/solutions
cypress.com/go/USB
cypress.com/go/wireless
© Cypress Semiconductor Corporation, 2004-2015. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of
any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for
medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as
critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems
application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),
United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,
and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress
integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without
the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not
assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where
a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer
assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
Document Number: 38-07633 Rev. *K
Revised January 14, 2015
All products and company names mentioned in this document may be the trademarks of their respective holders.
Page 17 of 17