CY22800
Universal Programmable Clock Generator
(UPCG)
Features
■
■
Benefits
■
■
■
■
■
■
■
Spread Spectrum, VCXO, and Frequency Select
Input frequency range:
❐
Crystal: 8–30 MHz
❐
CLKIN: 0.5–100 MHz
Output frequency:
❐
Commercial: 1–200 MHz
❐
Industrial: 1–166 MHz
Integrated phase-locked loop
Low jitter, high accuracy outputs
3.3V operation
8-pin SOIC package
Inventory of only one device, CY22800, is needed in various
applications such as HDTV, STB, DVDR, and so on.
Multiple predefined configurations that can be programmed
into a single chip.
Eliminates the need for expensive and difficult to use
higher-order crystal.
High-performance PLL tailored for multiple applications.
Meets critical timing requirements in complex system designs.
Enables application compatibility.
Allows up to three different frequency selects.
■
■
■
■
■
Logic Block Diagram
XIN/CLKIN
XOUT
VCXO
FS2
FS1
FS0
OSC
Q
Φ
VCO
P
CLKC
OUTPUT
DIVIDER
CLKB
CLKA
PLL
(with modulation control)
VDD
VSS
Pin Configuration
Figure 1. CY22800 8-Pin SOIC
XIN/CLKIN
VDD
FS0/VCXO
VSS
1
2
3
4
8
7
6
5
XOUT
CLKC/FS2/VSS
CLKA/FS0
CLKB/FS1
Table 1. Pin Definition
Name
XIN
VDD
FS0/VCXO
VSS
CLKB/FS1
CLKA/FS0
CLKC/FS2/VSS
XOUT
Pin Number
1
2
3
4
5
6
7
8
Description
Reference Input; Crystal or External Clock
3.3V Voltage Supply
Frequency Select 0/VCXO Analog Control Voltage
[1]
Ground
Clock Output B/Frequency Select 1
[1]
Clock Output A/Frequency Select 0
[1]
Clock Output C/Frequency Select 2/VSS
[1]
Reference Output (No Connect when the reference is a clock)
Note
1. Pin definition changes for different configurations. Refer to the specific one-page data sheet for more details.
Cypress Semiconductor Corporation
Document #: 001-07704 Rev. *B
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Revised May 25, 2008
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CY22800
General Description
The CY22800 is a multi-function clock generator that supports
various applications in consumer and communications markets.
The device uses the Cypress proprietary PLL along with Spread
Spectrum and VCXO technology to make it one of the most
versatile clock synthesizers in the marketplace. The CY22800 is
a field-programmable synthesizer that can be programmed using
an easy-to-use programmer dongle, CY36800, with one of many
predefined configuration files for fast sample generation of
prototype builds. The CY22800 is a reprogrammable device that
can be programmed up to 100 times. The latest configurations
available for this device are summarized in
Table 2.
VCXO
One of the key components of the CY22800 device is the VCXO.
The VCXO is used to “pull” the reference crystal higher or lower
in order to lock the system frequency to an external source. This
is ideal for applications where the output frequency needs to
track along with an external reference frequency that is
constantly shifting.
A special pullable crystal must be used in order to have adequate
VCXO pull range. Pullable Crystal specifications are included in
this data sheet.
VCXO Profile
Figure 2
shows an example of what a VCXO profile looks like.
The analog voltage input is on the X-axis and the PPM range is
on the Y-axis. An increase in the VCXO input voltage results in a
corresponding increase in the output frequency. This has the
effect of moving the PPM from a negative to positive offset.
Figure 2. VCXO Profile
200
150
100
Tuning [ppm]
50
0
-50
-100
-150
-200
VCXO input [V]
0
0.5
1
1.5
2
2.5
3
3.5
Spread Spectrum Clock Generation (SSCG)
The CY22800 can generate Spread Spectrum Clocks (SSCG) to
reduce EMI found in today’s high-speed digital electronic
systems.
The device uses proprietary Spread Spectrum Clock (SSC)
technology to synthesize and modulate the frequency of the
input clock. By modulating the frequency of the clock, the
measured EMI at the fundamental and harmonic frequencies is
greatly reduced. This reduction in radiated energy can signifi-
cantly reduce the cost of complying with regulatory agency
(EMC) requirements and improve time to market without
degrading system performance.
The CY22800 uses a preprogrammed configuration of memory
arrays to synthesize output frequency and offers eight different
spread percentages (refer to
Table 2
– Code numbers -015 to
-022), and an additional option to turn the spread on and off.
For the above-mentioned configurations, the modulation
frequency varies with the reference frequency as follows:
f
mod
=
f
ref
1000
Table 2. CY22800 Configurations
Code #
Commercial Temperature Range
CY22800-001A X2 Multiplier
CY22800-002A X3 Multiplier
CY22800-003A X4 Multiplier
CY22800-004A X5 Multiplier
CY22800-005A X6 Multiplier
CY22800-006A X8 Multiplier
CY22800-007A Clock multiplier for consumer & communication applications
CY22800-008A Clock multiplier for consumer & communication applications
CLKIN: 0.5–100
XTAL: 8–30
CLKIN: 0.5–66.66
XTAL: 8–30
CLKIN: 0.5–50
XTAL: 8–30
CLKIN: 0.5–40
XTAL: 8–30
CLKIN: 0.5–33.33
XTAL: 8–30
CLKIN: 0.5–25
XTAL: 8–25
14.318
[2]
14.318
[2]
CLKA: 1–200 or REFOUT
CLKA: 1.5–200 or REFOUT
CLKA: 2–200 or REFOUT
CLKA: 2.5–200 or REFOUT
CLKA: 3–200
CLKB: REFOUT
CLKA: 4–200
CLKB: REFOUT
CLKA: 33.33, 66.66, 50, 75, 80, 100, 133.33
See D/S
CLKA: 12, 24, 48, 60, 62.5, 106.25, 125
See D/S
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Code name
Input Freq. (MHz)
Output Freq. (MHz)
SS
VCXO
Note
2. Fixed CLKIN/Xtal frequency. Refer to the one page data sheet corresponding to the Code # for detailed input and output ranges.
Document #: 001-07704 Rev. *B
Page 2 of 10
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CY22800
Table 2. CY22800 Configurations
(continued)
Code #
Code name
Input Freq. (MHz)
20
[2]
20
[2]
25
[2]
25
[2]
27
[2]
27
[2]
CLKIN: 25.0–100.0
XTAL: 25.0–30.0
CLKIN: 25.0–100.0
XTAL: 25.0–30.1
CLKIN: 25.0–100.0
XTAL: 25.0–30.0
CLKIN: 25.0–100.0
XTAL: 25.0–30.3
CLKIN: 25.0–100.0
XTAL: 25.0–30.0
CLKIN: 25.0–100.0
XTAL: 25.0–30.0
CLKIN: 25.0–100.0
XTAL: 25.0–30.1
CLKIN: 25.0–100.0
XTAL: 25.0–30.0
XTAL: 13.5
Output Freq. (MHz)
CLKA: 33.33, 66.66, 50, 75, 80, 100, 133.33
See D/S
CLKA: 12, 24, 48, 60, 62.5, 106.25, 125
See D/S
CLKA: 33.33, 66.66, 50, 75, 80, 100, 133.33
See D/S
CLKA: 12, 24, 48, 60, 62.5, 106.25, 125
See D/S
CLKA: 33.33, 66.66, 50, 75, 80, 100, 133.33
See D/S
CLKA: 12, 24, 48, 60, 62.5, 106.25, 125
See D/S
CLKA: REF (spread ±0.25% or off)
CLKB: REF or REF/2 (spread ±0.25% or off)
CLKA: REF (spread ±0.5% or off)
CLKB: REF or REF/2 (spread ±0.5% or off)
CLKA: REF (spread ±0.75% or off)
CLKB: REF or REF/2 (spread ±0.75% or off)
CLKA: REF (spread ±1.0% or off)
CLKB: REF or REF/2 (spread ±1.0% or off)
CLKA: REF (spread ±1.25% or off)
CLKB: REF or REF/2 (spread ±1.25% or off)
CLKA: REF (spread ±1.5% or off)
CLKB: REF or REF/2 (spread ±1.5% or off)
CLKA: REF (spread ±1.75% or off)
CLKB: REF or REF/2 (spread ±1.75% or off)
CLKA: REF (spread ±2.0% or off)
CLKB: REF or REF/2 (spread ±2.0% or off)
CLKA: 27
CLKB: 54
CLKC: 27
CLKA:13.5
CLKB: 54
CLKC: 27
CLKB: 27, 27
CLKB: 27, 27
CLKC: 27, 27
CLKB: 27, 27
CLKC: 27, 27.027 (–1 ppm)
CLKB: 27, 27
CLKC: 27, 27.027 (0 ppm)
CLKA: 24.576, 25, 20, 48
CLKB: 27
CLKA: 25, 20
CLKB: 27
CLKC 33.33, 66.66
CLKA: 33.33, 66.66, 100, 133.33
CLKB: 48
CLKA: 74.25, 74.175824, 148.5, 148.351648
CLKB: 27
CLKA: (32K, 44.1K, 48K) X 256
CLKB: 27
CLKA: (32K, 44.1K, 48K) X 384
CLKB: 27
CLKA: (32K, 44.1K, 48K) X 512
CLKB: 27
CLKA: (32K, 44.1K, 48K) X 768
CLKB: 27
CLKA: 33.33, 66.66, 100, 133.33
(–0.5% or off)
CLKA: 33.33, 66.66, 100, 133.33
(–1.0% or off)
SS
N
N
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
N
VCXO
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
CY22800-009A Clock multiplier for consumer & communication applications
CY22800-010A Clock multiplier for consumer & communication applications
CY22800-011A Clock multiplier for consumer & communication applications
CY22800-012A Clock multiplier for consumer & communication applications
CY22800-013A Clock multiplier for consumer & communication applications
CY22800-014A Clock multiplier for consumer & communication applications
CY22800-015A Spread spectrum for consumer and communication applications
CY22800-016A Spread spectrum for consumer and communication applications
CY22800-017A Spread spectrum for consumer and communication applications
CY22800-018A Spread spectrum for consumer and communication applications
CY22800-019A Spread spectrum for consumer and communication applications
CY22800-020A Spread spectrum for consumer and communication applications
CY22800-021A Spread spectrum for consumer and communication applications
CY22800-022A Spread spectrum for consumer and communication applications
CY22800-023A MPEG-2 clock generator for DTV and STB w/ VCXO
CY22800-024A MPEG-2 clock generator for DTV and STB w/ VCXO
XTAL: 13.5
N
Y
CY22800-025A MPEG-2 clock generator for DTV and STB w/ VCXO
CY22800-026A MPEG-2 clock generator for DTV and STB w/ VCXO
CY22800-027A MPEG-2 clock generator for DTV and STB w/ VCXO
CY22800-028A MPEG-2 clock generator for DTV and STB w/ VCXO
CY22800-029A HDTV, STB clock generator (USB/Ethernet/iLink clock)
CY22800-030A HDTV, STB clock generator
(Ethernet/PCI/Microprocessor clock)
CY22800-031A HDTV, STB clock generator (PCI/Microprocessor clock)
CY22800-032A HDTV, STB clock generator (pixel clocks)
CY22800-033A Audio clock generator for HDTV & STB (256fs)
CY22800-034A Audio clock generator for HDTV & STB (384fs)
CY22800-035A Audio clock generator for HDTV & STB (512fs)
CY22800-036A Audio clock generator for HDTV & STB (768fs)
CY22800-037A Spread spectrum clock generator for PCI and ASIC
CY22800-038A Spread spectrum clock generator for PCI and ASIC
XTAL: 13.5/27.0
(Selectable)
XTAL: 13.5/27.0
(Selectable)
XTAL: 27
XTAL: 27
XTAL/CLKIN: 27
XTAL/CLKIN: 27
N
N
N
N
N
N
Y
Y
Y
Y
N
N
XTAL/CLKIN: 48
XTAL/CLKIN: 27
XTAL/CLKIN: 27
XTAL/CLKIN: 27
XTAL/CLKIN: 27
XTAL/CLKIN: 27
XTAL/CLKIN:
14.31818
XTAL/CLKIN:
14.31818
N
N
N
N
N
N
Y
Y
N
N
N
N
N
N
N
N
Document #: 001-07704 Rev. *B
Page 3 of 10
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CY22800
Table 2. CY22800 Configurations
(continued)
Code #
Code name
Input Freq. (MHz)
XTAL/CLKIN:
14.31818
XTAL/CLKIN:
14.31818
XTAL/CLKIN: 27
XTAL/CLKIN: 27
XTAL/CLKIN: 27
XTAL/CLKIN: 27
CLKIN: 35–100
CLKIN: 35–100
CLKIN: 35–100
CLKIN: 35–100
CLKIN: 35–100
XTAL/CLKIN:
14.31818
Output Freq. (MHz)
CLKA: 33.33, 66.66, 100, 133.33
(±0.25% or off)
CLKA: 33.33, 66.66, 100, 133.33
(±0.5% or off)
CLKA: 33, 66 (spread –0.5% or off)
CLKB: 27
CLKA: 33, 66 (spread –1.0% or off)
CLKB: 27
CLKA: 33, 66 (spread ±0.25% or off)
CLKB: 27
CLKA: 33, 66 (spread ±0.5% or off)
CLKB: 27
CLKA: 1x, 2x, 4x or /2 (spread –0.5%)
CLKB: REFOUT
CLKA: 1x, 2x, 4x or /2 (spread –1.0%)
CLKB: REFOUT
CLKA: 1x, 2x, 4x or /2 (spread –1.5%)
CLKB: REFOUT
CLKA: 1x, 2x, 4x or /2 (spread –2.0%)
CLKB: REFOUT
CLKA: 1x, 2x, 4x or /2 (spread –2.5%)
CLKB: REFOUT
CLKA: 33.33, 66.66, 100, 133.33
(–1.5% or off)
SS
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
N
N
N
VCXO
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
CY22800-039A Spread spectrum clock generator for PCI and ASIC
CY22800-040A Spread spectrum clock generator for PCI and ASIC
CY22800-041A Spread spectrum clock generator for Audio / Video Applications
CY22800-042A Spread spectrum clock generator for Audio / Video Applications
CY22800-043A Spread spectrum clock generator for Audio / Video Applications
CY22800-044A Spread spectrum clock generator for Audio / Video Applications
CY22800-045A Spread spectrum clock generator with Multiplier option
CY22800-046A Spread spectrum clock generator with Multiplier option
CY22800-047A Spread spectrum clock generator with Multiplier option
CY22800-048A Spread spectrum clock generator with Multiplier option
CY22800-049A Spread spectrum clock generator with Multiplier option
CY22800-050A Spread spectrum clock generator for PCI and ASIC
CY22800-051A X10 Multiplier
CY22800-052A X12 Multiplier
CY22800-053A X15 Multiplier
CY22800-054A X20 Multiplier
CY22800-055A X25 Multiplier
CY22800-056A 2/3 Multiplier
CY22800-057A 4/3 Multiplier
CY22800-058A 3/4 Multiplier
CY22800-059A 3/2 Multiplier
CY22800-060A 2/5 Multiplier
CY22800-061A 3/5 Multiplier
CY22800-062A 5/6 Multiplier
CY22800-063A 6/5 Multiplier
CY22800-064A 5/8 Multiplier
CY22800-065A 8/5 Multiplier
CY22800-066A Spread spectrum clock generator for Audio / Video Applications
CY22800-067A 5/4 Multiplier
CY22800-068A 4/5 Multiplier
CY22800-069A 66/64 Multiplier
CLKIN: 0.5–20 XTAL: CLKA: 5–200
8–20
CLKB: REFOUT
CLKIN: 0.5–16.66
XTAL: 8–16.66
CLKIN: 0.5–13.33
XTAL: 8–13.33
CLKA: 6–200.0
CLKB: REFOUT
CLKA: 7.5–200
CLKB: REFOUT
CLKIN: 0.5–10 XTAL: CLKA: 10–200
8–10
CLKB: REFOUT
CLKIN: 0.5–8
XTAL: 8
CLKIN: 2.5–133
XTAL: 8–30
CLKIN: 2–100
XTAL: 8–30
CLKIN: 3.5–133
XTAL: 8–30
CLKIN: 1.5–133
XTAL: 8–30
CLKIN: 5–133
XTAL: 8–30
CLKIN: 3.5–133
XTAL: 8–30
CLKIN: 3–80
XTAL: 8–30
CLKIN: 2–66.67
XTAL: 8–30
CLKA: 12.5–200
CLKB: REFOUT
CLKA: 1.67–88.67
CLKB: REFOUT
CLKA: 2.66–133.33
CLKB: REFOUT
CLKA: 2.625–99.75
CLKB: REFOUT
CLKA: 2.25–199.5
CLKB: REFOUT
CLKA: 2–53.2
CLKB: REFOUT
CLKA: 2.1–80
CLKB: REFOUT
CLKA: 2.5– 66.67
CLKB: REFOUT
CLKA: 2.4–80
CLKB: REFOUT
CLKIN: 2.5–80 XTAL: CLKA: 1.56–50
8–30
CLKB: REFOUT
CLKIN: 2–50
XTAL: 8–30
XTAL/CLKIN: 27
CLKIN: 5–133
XTAL: 8–30
CLKIN: 5–33
XTAL: 8–30
CLKIN: 5–133
XTAL: 8–30
CLKA: 3.2–80
CLKB: REFOUT
CLKA: 33, 66 (spread –1.5% or off)
CLKB: 27
CLKA: 6–166
CLKB: REFOUT
CLKA: 4–106
CLKB: REFOUT
CLKA: 5–137
CLKB: REFOUT
Document #: 001-07704 Rev. *B
Page 4 of 10
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CY22800
Table 2. CY22800 Configurations
(continued)
Code #
CY22800-070A 64/66 Multiplier
CY22800-071A 255/238 Multiplier
CY22800-072A 238/255 Multiplier
CY22800-073A 3-Output Fanout Buffer
CY22800-074A X2 Multiplier with Fanout and REFOUT
CY22800-075A X3 Multiplier with Fanout and REFOUT
CY22800-076A X4 Multiplier with Fanout and REFOUT
CY22800-077A /2 Clock Divider
CY22800-078A /3 Clock Divider
CY22800-079A /4 Clock Divider
CY22800-080A /5 Clock Divider
CY22800-081A /6 Clock Divider
CY22800-082A /7 Clock Divider
CY22800-083A /8 Clock Divider
CY22800-084A /9 Clock Divider
CY22800-085A /10 Clock Divider
Industrial Temperature Range
CY22800-115A Spread spectrum for consumer and communication applications
CY22800-116A Spread spectrum for consumer and communication applications
CY22800-117A Spread spectrum for consumer and communication applications
CY22800-118A Spread spectrum for consumer and communication applications
CY22800-119A Spread spectrum for consumer and communication applications
CY22800-120A Spread spectrum for consumer and communication applications
CY22800-121A Spread spectrum for consumer and communication applications
CY22800-145A Spread spectrum clock generator with Multiplier option
CY22800-146A Spread spectrum clock generator with Multiplier option
CY22800-147A Spread spectrum clock generator with Multiplier option
CY22800-148A Spread spectrum clock generator with Multiplier option
CY22800-151A X10 Multiplier
CY22800-152A X12 Multiplier
CY22800-153A X15 Multiplier
CY22800-154A X20 Multiplier
CLKIN: 25– 82.5
XTAL: 25–30
CLKIN: 25–82.5
XTAL: 25–30
CLKIN: 25–82.5
XTAL: 25 - 30
CLKIN: 25–82.5
XTAL: 25–30
CLKIN: 25–82.5
XTAL: 25–30
CLKIN: 25–82.5
XTAL: 25–30
CLKIN: 25–82.5
XTAL: 25–30
CLKIN: 35–82.5
CLKIN: 35–82.5
CLKIN: 35–82.5
CLKIN: 35–82.5
CLKIN: 0.5–16.5
XTAL: 8–16.5
CLKIN: 0.5–13.75
XTAL: 8–13.75
CLKA: REF (spread ±0.25% or off)
CLKB: REF or REF/2 (spread ±0.25% or off)
CLKA: REF (spread ±0.5% or off)
CLKB: REF or REF/2 (spread ±0.5% or off)
CLKA: REF (spread ±0.75% or off)
CLKB: REF or REF/2 (spread ±0.75% or off)
CLKA: REF (spread ±1.0% or off)
CLKB: REF or REF/2 (spread ±1.0% or off)
CLKA: REF (spread ±1.25% or off)
CLKB: REF or REF/2 (spread ±1.25% or off)
CLKA: REF (spread ±1.5% or off)
CLKB: REF or REF/2 (spread ±1.5% or off)
CLKA: REF (spread ±1.75% or off)
CLKB: REF or REF/2 (spread ±1.75% or off)
CLKA: 1x, 2x, 4x or /2 (spread –0.5%)
CLKB: REFOUT
CLKA: 1x, 2x, 4x or /2 (spread –1.0%)
CLKB: REFOUT
CLKA: 1x, 2x, 4x or /2 (spread –1.5%)
CLKB: REFOUT
CLKA: 1x, 2x, 4x or /2 (spread –2.0%)
CLKB: REFOUT
CLKA: 5–165
CLKB: REFOUT
CLKA: 6–165
CLKB: REFOUT
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Code name
Input Freq. (MHz)
CLKIN: 5–133
XTAL: 8–30
CLKIN: 5–133
XTAL: 8–30
CLKIN: 5–133
XTAL: 8–30
CLKIN: 1–133
XTAL: 8–30
CLKIN: 9–100
XTAL: 9–30
CLKIN: 6–66
XTAL: 8–30
CLKIN: 5–50
XTAL: 8–30
CLKIN: 0.5–133
XTAL: 8–30
CLKIN: 0.5–133
XTAL: 8–30
CLKIN: 0.5–133
XTAL: 8–30
CLKIN: 0.5–133
XTAL: 8–30
CLKIN: 0.5–133
XTAL: 8–30
CLKIN: 0.5–133
XTAL: 8–30
CLKIN: 0.5–133
XTAL: 8–30
CLKIN: 0.5–133
XTAL: 8–30
CLKIN: 0.5–133
XTAL: 8–30
Output Freq. (MHz)
CLKA: 5–129
CLKB: REFOUT
CLKA: 5–142
CLKB: REFOUT
CLKA: 5–124
CLKB: REFOUT
CLKA = CLKB = CLKC: REFOUT
CLKA = CLKC: 18–200
CLKB: REFOUT
CLKA = CLKC: 18–200
CLKB: REFOUT
CLKA = CLKC: 20–200
CLKB: REFOUT
CLKA: 0.25–66.5
CLKB = CLKC: 0.25–66.5 or off
CLKA: 0.17–44.3
CLKB = CLKC: 0.17–44.3 or off
CLKA: 0.125–33.25
CLKB = CLKC: 0.125–33.25 or off
CLKA: 0.1–26.6
CLKB = CLKC: 0.1–26.6 or off
CLKA: 0.083–22.2
CLKB = CLKC: 0.083–22.2 or off
CLKA: 0.071–19
CLKB = CLKC: 0.071–19 or off
CLKA: 0.063–16.6
CLKB = CLKC: 0.063–v16.6 or off
CLKA: 0.056–14.8
CLKB = CLKC: 0.056–14.8 or off
CLKA: 0.05–13.3
CLKB = CLKC: 0.05–13.3 or off
SS
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
VCXO
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
CLKIN: 0.5–11 XTAL: CLKA: 7.5–165
8–11
CLKB: REFOUT
CLKIN: 0.5–8.25
XTAL: 8–8.25
CLKA: 10–165
CLKB: REFOUT
Document #: 001-07704 Rev. *B
Page 5 of 10
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