參數(shù)資料
型號(hào): PCK2020
廠商: NXP Semiconductors N.V.
英文描述: CK00 100/133MHz spread spectrum differential system clock generator
中文描述: CK00 100/133MHz微分系統(tǒng)的擴(kuò)頻時(shí)鐘發(fā)生器
文件頁(yè)數(shù): 2/16頁(yè)
文件大小: 110K
代理商: PCK2020
Philips Semiconductors
Product specification
PCK2020
CK00 (100/133MHz) spread spectrum
differential system clock generator
2
2000 Nov 13
853-2209 25006
FEATURES
3.3 V operation
Four differential CPU clock pairs
Ten PCI clocks at 3.3 V
Four 66 MHz clocks at 3.3 V
Two 48 MHz clocks at 3.3 V
Two 14.318 MHz reference clocks
100 or 133 MHz operation
Power management control pins
CPU clock skew less than 200 ps cycle-to-cycle
CPU clock skew less than 150 ps pin-to-pin
1.5 ns to 3.5 ns delay on PCI pins
Spread Spectrum capability
DESCRIPTION
The PCK2020 is a clock synthesizer/driver for a Pentium III and
other similar processors.
The PCK2020 has four differential pair CPU current source outputs,
two Mref clock outputs running at 1/2 the CPU clock frequency
depending on the state of SEL133/100 pin and four 3V66 clocks
running at 66 MHz. There are ten PCI clock outputs running at
33 MHz and two 48 MHz clocks. Finally, there are two 3.3 V
reference clocks at 14.318 MHz. All clock outputs meet Intel’s drive
strength, rise/fall times, jitter, accuracy, and skew requirements.
The part possesses a dedicated power-down input pin for power
management control. This input is synchronized on-chip and
ensures glitch-free output transitions.
PIN CONFIGURATION
SW00577
1
2
3
4
5
6
7
8
9
10
11
12
45
46
47
48
49
50
51
52
53
54
55
56
V
SS
Ref
Ref1/MultSel1
V
DD
3.3Ref
XTAL_IN
XTAL_OUT
V
SS
PCI
PCICLK0
PCICLK1
V
DD
3.3PCI
PCICLK2
V
DD
3.3M
3VMref
3VMref_b
V
SS
M
SPREAD
CPUCLK0
CPUCLK0
CPUCLK1
V
DD
3.3CPU
CPUCLK1
V
SS
CPU
CPUCLK2
PCICLK3
13
14
15
16
17
18
39
40
41
42
43
44
V
SS
PCI
PCICLK4
PCICLK5
V
DD
3.3PCI
PCICLK6
CPUCLK2
CPUCLK3
V
DD
3.3CPU
CPUCLK3
V
SS
CPU
PCICLK7
19
38
I_REF
V
SS
PCI
20
21
22
23
24
25
32
33
34
35
36
37
PCICLK8
PCICLK9
V
DD
3.3PCI
SEL100/133
V
SS
USB
V
DD
3.3Core
3V66_0
V
SS
Core
3V66_1
V
SS
V
SS
48MHz0/SelA
26
31 3V66_2
48MHz1/SelB
27
30 3V66_3
V
DD
3.3USB
28
29
PWRDWN
V
DD
3.3
Ref0/MultSel0
V
DD
3.3
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE (
°
C)
ORDER CODE
DRAWING NUMBER
56-Pin Plastic SSOP
0 to +70
PCK2020 DL
SOT371-1
Intel and Pentium are registered trademarks of Intel Corporation.
相關(guān)PDF資料
PDF描述
PCK2020DL CK00 100/133MHz spread spectrum differential system clock generator
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PCK2021 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CK00 100/133 MHz spread spectrum differential system clock generator