CK98R (100/133MHz) RCC spread
spectrum system clock generator
Product specification
Supersedes data of 2000 Dec 01
ICL03 — PC Motherboard ICs; Logic Products Group
2001 Apr 02
Page 2
Philips SemiconductorsProduct specification
CK98R (100/133MHz) RCC spread spectrum
system clock generator
FEA TURES
•Mixed 2.5 V and 3.3 V operation
•Four CPU clocks at 2.5 V
•Eight PCI clocks at 3.3 V, one free-running
(synchronous with CPU clocks)
•Four 3.3 V fixed clocks @ 66 MHz
•Two 2.5 V CPUDIV2 clocks @
1
/2 CPU clock frequency
•Three 2.5 V IOAPIC clocks @ 16.67 MHz
•One 3.3 V 48 MHz USB clock
•Two 3.3 V reference clocks @ 14.318 MHz
•Reference 14.31818 MHz Xtal oscillator input
•133 MHz or 100 MHz operation, 133.01 MHz in 133 mode
•Power management control input pins
•CPU clock jitter ≤ 250 ps cycle-cycle
•CPU clock skew ≤ 175 ps pin-pin
•0.0 ns – 1.5 ns CPU–3V66 delay
•1.5 ns – 3.5 ns 3V66–PCI delay
•1.5 ns – 4.0 ns CPU–IOAPIC delay
•1.5 ns – 4.0 ns CPU–PCI delay
•Available in 56-pin SSOP package
•±0.6% center spread spectrum capability via select pins
•–0.6% down spread spectrum capability via select pins
DESCRIPTION
The PCK2010RA is a clock generator (frequency synthesizer) chip
for a Pentium II and other similar processors.
The PCK2010RA has four CPU clock outputs at 2.5 V, two
CPUDIV2 clock outputs running at
(66 MHz or 50 MHz depending on the state of SEL133/100) and four
3V66 clocks running at 66MHz. There are eight PCI clock outputs
running at 33 MHz. One of the PCI clock outputs is free-running.
Additionally, the part has three 2.5 V IOAPIC clock outputs at
16.67 MHz and two 3.3 V reference clock outputs at 14.318 MHz. All
clock outputs meet Intel’s drive strength, rise/fall time, jitter,
accuracy, and skew requirements.
The part possesses dedicated power-down, CPUSTOP
PCISTOP
input pins for power management control. These inputs
are synchronized on-chip and ensure glitch-free output transitions.
When the CPUSTOP input is asserted, the CPU clock outputs and
3V66 clock outputs are driven LOW. When the PCISTOP
asserted, the PCI clock outputs are driven LOW.
1
/2 CPU clock frequency
, and
input is
Finally, when the PWRDWN input pin is asserted, the internal
reference oscillator and PLLs are shut down, and all outputs are
driven LOW.
PIN CONFIGURATION
REF0
REF1
V
DD
XTAL_IN
XTAL_OUT
V
PCICLK_F
PCICLK1
V
DD
PCICLK2
PCICLK3
PCICLK4
PCICLK5
V
DD
PCICLK6
PCICLK7
V
3V66_0
3V66_1
VDD3V
V
3V66_2
3V66_3
VDD3V
1
SS
2
3
4
3V
5
6
7
SS
8
9
10
3V
11
1245
13
SS
14
15
16
3V
17
1839
1938V
SS
20
SS
21
22
23
24
SS
2532
2631
2730
2829SEl133/100
PCK2010RA
56V
VDD25V
55
APIC2
54
APIC1
APIC0
53
52
V
SS
51
25V
V
DD
50
CPUDIV2_1
CPUDIV2_0
49
48
V
SS
47
VDD25V
CPUCLK3
46
CPUCLK2
V
44V
SS
VDD25V
43
CPUCLK1
42
CPUCLK0
41
V
40
SS
3V
V
DD
V
SS
37
PCISTOP
CPUSTOP
36
35
PWRDWN
SPREAD
34
SEL1
33
SEL0
VDD3V
48MHz_USB
V
SS
SW00892
ORDERING INFORMA TION
PACKAGESTEMPERATURE RANGEORDER CODEDRAWING NUMBER
56-Pin plastic SSOP0 to +70 °CPCK2010RADLSOT371-1
Intel and Pentium are registered trademarks of Intel Corporation.
1. LOW means outputs held static LOW as per latency requirement below
2. ON means active.
3. PWRDWN
4. All 3V66 clocks as well as CPU clocks should stop cleanly when CPUSTOP is pulled LOW.
5. CPUDIV2, IOAPIC, REF, 48 MHz signals are not controlled by the CPUSTOP functionality and are enabled all in all conditions except when
PWRDWN
pulled LOW, impacts all outputs including REF and 48 MHz outputs.
is LOW.
POWER MANAGEMENT REQUIREMENTS
LATENCY
NO. OF RISING EDGES OF FREE RUNNING PCICLK
CPUSTOP
PCISTOP
PWRDWN
NOTES:
1. Clock ON/OFF latency is defined as the number of rising edges of free running PCICLKs between the clock disable goes HIGH/LOW to the
first valid clock that comes out of the device.
2. Power up latency is when PWRDWN
goes inactive (HIGH) to when the first valid clocks are driven from the device.
0 (DISABLED)1
1 (ENABLED)1
0 (DISABLED)1
1 (ENABLED)1
1 (NORMAL OPERATION)3 ms
0 (POWER DOWN)2 MAX
2001 Apr 02
5
Page 6
Philips SemiconductorsProduct specification
SYMBOL
PARAMETER
CONDITION
UNIT
SYMBOL
PARAMETER
CONDITIONS
UNIT
C
CK98R (100/133MHz) RCC spread spectrum
PCK2010RA
system clock generator
ABSOLUTE MAXIMUM RATINGS
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to VSS (VSS = 0 V).
V
DD3
V
DDQ3
V
DDQ2
I
IK
V
I
OK
V
O
I
O
T
stg
P
tot
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
DC 3.3 V core supply voltage–0.5+4.6V
DC 3.3 V I/O supply voltage–0.5+4.6V
DC 2.5 V I/O supply voltage–0.5+3.6V
DC input diode currentVI < 0–50mA
DC input voltageNote 2–0.55.5V
I
DC output diode currentVO > VCC or VO < 0±50mA
DC output voltageNote 2–0.5VCC + 0.5V
DC output source or sink currentVO = 0 to V
Storage temperature range–65+150°C
Power dissipation per package
plastic medium-shrink (SSOP)
1, 2
CC
For temperature range: –40 to +125 °C
above +55 °C derate linearly with 11.3 mW/K
LIMITS
MINMAX
±50mA
850mW
RECOMMENDED OPERATING CONDITIONS
V
DD3V
V
DD25V
V
f
REF
T
V
amb
DC 3.3 V core supply voltage3.1353.465V
DC 2.5 V I/O supply voltage2.3752.625V
Capacitive load on:
48MHZ(0–1) CLOCK OUTPUT (LUMP CAPACITANCE TEST LOAD = 20 pF)
LIMITS
T
= 0 to +70 °C
SYMBOLPARAMETER
amb
133 MHz MODE100 MHz MODE
MINMAXMINMAX
T
HKP
T
HKH
T
HKL
T
(tR)Output rise edge rate1414ns
HRISE
T
(tF)Output fall edge rate1414ns
HFALL
48 MHz clock period20.82920.8320.82920.83ns2
48 MHz clock HIGH time7.57n/a7.57n/ans
48 MHz clock LOW time7.17n/a7.17n/ans
DUTY CYCLE (tD)Duty Cycle45554555%
T
JITTER
T
(fST)Frequency stabilization from Power-up (cold start)3ms
HSTB
CLK cycle-cycle jitter500500ps
NOTES:
1. See Figure 5 for measure points.
2. Average period over 1 µs.
2001 Apr 02
9
LIMITS
T
= 0 to +70 °C
amb
UNITNOTES
Page 10
Philips SemiconductorsProduct specification
TEST CONDITIONS
SYMBOL
PARAMETER
UNIT
NOTES
CK98R (100/133MHz) RCC spread spectrum
PCK2010RA
system clock generator
AC CHARACTERISTICS (Continued)
LIMITS
T
= 0 to +70 °C
amb
Measurement loads
(lumped)
T
HPOFFSET
T
HPOFFSET
T
HPOFFSET
T
HPOFFSET
CPUCLK to 3V66 CLK,
CPU leads
3V66 CLK to PCICLK,
3V66 leads
CPUCLK to IOAPIC,
CPU leads
CPUCLK to PCICLK ,
CPU leads
CPU@20 pF,
3V66@30 pF
3V66@30 pF,
PCI@30 pF
CPU@20 pF,
IOAPIC@20 pF
CPU@20 pF
PCI@30 pF
NOTES:
1. Output drivers must have monotonic rise/fall times through the specified V
2. Period, jitter, offset and skew measured on rising edge @1.25 V for 2.5 V clocks and @ 1.5 V for 3.3 V clocks.
3. The PCICLK is the CPUCLK divided by four at CPUCLK = 133 MHz. The 3V66 CLK is internal VCO frequency divided by three at
CPUCLK = 100 MHz.
4. 3V66 CLK is internal VCO frequency divided by two at CPUCLK = 133 MHz. The 3V66 CLK is internal VCO frequency divided by three at
CPUCLK = 100 MHz.
5. T
6. T
7. The time is specified from when V
8. T
is measured at 2.0 V for 2.5 V outputs, 2.4 V for 3.3 V outputs as shown in Figure 4.
HKH
is measured at 0.4 V for all outputs as shown in Figure 4.
HKL
stable and operating within specification.
and T
HRISE
specification. T
(1 mA) JEDEC specification.
are measured as a transition through the threshold region VOL = 0.4 V and VOH = 2.4 V for 3 V outputs (1 mA) JEDEC
HFALL
and T
HRISE
HFALL
achieves its nominal operating level (typical condition V
DDQ
are measured as a transition through the threshold region VOL = 0.4 V and VOH = 2.0 V for 2.5 V outputs
9. The average period over any 1 µs period of time must be greater than the minimum specified period.
10.Calculated at minimum edge-rate (1V/ns) to guarantee 45/55% duty-cycle. Pulse width is required to be wider at faster edge-rate to ensure
duty-cycle specification is met.
11.Output (see Figure 5 for measure points).
Measure pointsMINTYPMAX
CPU@1.25 V ,
3V66@1.5 V
3V66@1.5 V ,
PCI@1.5 V
3CPU@1.25 V ,
IOAPIC@1.25 V
CPU@1.25 V
PCI@1.5 V
levels.
OL/VOH
0.00.451.5ns1
1.52.03.5ns1
1.52.44.0ns1
1.52.74.0ns
= 3.3 V) until the frequency output is
DDQ
2001 Apr 02
10
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Philips SemiconductorsProduct specification
Function
48 MHz PLL
CK98R (100/133MHz) RCC spread spectrum
PCK2010RA
system clock generator
SPREAD SPECTRUM FUNCTION TABLE
SPREAD#SEL133/100#SEL1SEL0
pin 34pin 28pin 33pin 32
0 (active)0 (100 MHz)003-State to High ImpedanceInactive
0 (active)0 (100 MHz)01100 MHz, Center Spread ±0.6%Active
0 (active)0 (100 MHz)10100 MHz, Down Spread –0.6%Inactive
0 (active)0 (100 MHz)11100 MHz, Down Spread –0.6%Active
0 (active)1 (133 MHz)00Test ModeActive
0 (active)1 (133 MHz)01133 MHz, Center Spread ±0.6%Active
0 (active)1 (133 MHz)10133 MHz, Down Spread –0.6%Inactive
0 (active)1 (133 MHz)11133 MHz, Down Spread –0.6%Active
1 (inactive)0 (100 MHz)003-State to High ImpedanceInactive
1 (inactive)0 (100 MHz)01100 MHz, No Spread SpectrumActive
1 (inactive)0 (100 MHz)10100 MHz, No Spread SpectrumInactive
1 (inactive)0 (100 MHz)11100 MHz, No Spread SprectrumActive
1 (inactive)1 (133 MHz)00Test ModeActive
1 (inactive)1 (133 MHz)01133 MHz, No Spread SprectrumActive
1 (inactive)1 (133 MHz)10133 MHz, No Spread SprectrumInactive
1 (inactive)1 (133 MHz)11133 MHz, No Spread SprectrumActive
2001 Apr 02
11
Page 12
Philips SemiconductorsProduct specification
CK98R (100/133MHz) RCC spread spectrum
system clock generator
AC WAVEFORMS
VM = 1.25 V @ V
VX = VOL + 0.3 V
VY = VOH –0.3 V
VOL and VOH are the typical output voltage drop that occur with the
output load.
CPUCLK
@133MHz
3v66
@66MHz
3V66
@ 66MHz
PCICLK
@ 33MHz
CPUCLK
@ 133MHz
IOAPIC
@ 16.6MHz
and 1.5 V @ V
DDQ2
T
1.25V
1.5V
HPOFFSET
DDQ3
CPU leads 3V66
Figure 1. CPUCLK to 3V66 offset
1.5V
1.5V
T
HPOFFSET
3V66 leads PCICLK
Figure 2. 3V66 to PCI offset
1.25V
1.25V
CPUCLK leads IOAPIC
T
HPOFFSET
Figure 3. CPU to IOAPIC offset
V
DDQ2
V
SS
V
DDQ3
V
SS
SW00354
V
DDQ3
V
SS
V
DDQ3
V
SS
SW00356
V
DDQ2
V
SS
V
DDQ2
V
SS
SW00357
PCK2010RA
T
HKP
DUTY CYCLE
T
HKH
2.5V CLOCKING
INTERFACE
3.3V CLOCKING
INTERFACE
(TTL)
COMPONENT
MEASUREMENT
POINTS
COMPONENT
MEASUREMENT
POINTS
Figure 5. Component versus system measure points
V
I
SEL133/100,
SEL1, SEL0
GND
V
DD
OUTPUT
LOW-to-OFF
OFF-to-LOW
V
OL
V
OH
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
V
SS
2.0
1.25
0.4
T
T
T
T
FALL
PKP
FALL
HKL
T
PKL
1.5
0.4
2.4
T
RISE
T
PKH
T
RISE
Figure 4. 2.5V/3.3V clock waveforms
V
OL
V
OL
2.5 V MEASUREMENT POINTS
V
= 2.0 V
OH
= 0.4 V
V
SS
3.3 V MEASUREMENT POINTS
VOH = 2.4 V
= 0.4 V
V
SS
V
M
t
PLZ
V
t
PHZ
outputs
enabled
X
V
V
DDQ2
= 1.7 V
V
IH
1.25 V
V
= 0.7 V
IL
V
DDQ3
= 2.0 V
V
IH
1.5 V
V
= 0.7 V
IL
t
PZL
t
PZH
Y
outputs
disabled
SW00242
SYSTEM
MEASUREMENT
POINTS
SYSTEM
MEASUREMENT
POINTS
SW00243
V
M
V
M
outputs
enabled
2001 Apr 02
SW00454
Figure 6. 3-State enable and disable times
12
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Philips SemiconductorsProduct specification
CK98R (100/133MHz) RCC spread spectrum
system clock generator
V
DD
V
PULSE
GENERATOR
I
R
T
D.U.T.
TESTS
t
PLH/tPHL
t
PLZ/tPZL
t
PHZ/tPZH
2<V
1
Open
V
SS
V
DD
PCK2010RA
S
1
2<V
DD
Open
V
SS
O
C
L
500Ω
500Ω
PWRDWN
CPUCLK
(INTERNAL)
PCICLK
(INTERNAL)
PWRDWN
CPUCLK
(EXTERNAL)
PCICLK
(EXTERNAL)
OSC & VCO
VDD = V
DDQ2
or V
, DEPENDS ON THE OUTPUT
DDQ3
Figure 7. Load circuitry for switching times
SW00238
2001 Apr 02
USB (48MHz)
SW00244
Figure 8. Power Management
13
Page 14
Philips SemiconductorsProduct specification
CK98R (100/133MHz) RCC spread spectrum
PCK2010RA
system clock generator
SSOP56: plastic shrink small outline package; 56 leads; body width 7.5 mmSOT371-1
2001 Apr 02
14
Page 15
Philips SemiconductorsProduct specification
CK98R (100/133MHz) RCC spread spectrum
system clock generator
NOTES
PCK2010RA
2001 Apr 02
15
Page 16
Philips SemiconductorsProduct specification
CK98R (100/133MHz) RCC spread spectrum
system clock generator
Data sheet status
Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make changes at any time without notice in order to
improve design and supply the best possible product.
This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.
[1]
PCK2010RA
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury . Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Copyright Philips Electronics North America Corporation 2001
All rights reserved. Printed in U.S.A.
Date of release: 04–01
Document order number:9397 750 08212
2001 Apr 02
16
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