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參數(shù)資料
| 型號： | 935269846112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | 6.10 MM, PLASTIC, MO-153, SOT-362-1, TSSOP-48 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 89K |
| 代理商： | 935269846112 |
Philips Semiconductors
Product data
PCK2022RA
CK00 (100/133 MHz) spread spectrum
differential system clock generator
2
2001 Jun 12
853–2257 26484
FEATURES
3.3 V operation
Eight differential CPU clock pairs
One IO clock at 33 MHz and 66 MHz
Two 48 MHz clocks at 3.3 V
One 14.318 MHz reference clock
Power management control pins
Host clock jitter less than 200 ps cycle-to-cycle
Host clock skew less than 150 ps pin-to-pin
Spread Spectrum capability
Optimized frequency and spread spectrum performance
DESCRIPTION
This part replaces PCK2022R with improved frequency and spread
spectrum performance.
The PCK2022RA is a clock synthesizer/driver for a Pentium III
and
other similar processors.
The PCK2022RA has eight differential pair CPU current source
outputs, one 33/66 MHz output which is configurable on power-up,
two 48 MHz clocks which can be disabled on power-up, and one
3.3 V reference clock at 14.318 MHz which can also be disabled on
power-up. 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. In addition, the part can be
configured to disable the 48 MHz outputs for lower power operation
and an increase in the performance of the functioning outputs. The
IOCLK and REFCLK can also be disabled for the highest
performance of the Host outputs.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
37
38
39
40
41
42
43
44
45
46
47
48
IOCLK
48M_0/SELA
48M_1/SELB
VSS
VDD
HCLK0
HCLKB0
VSS
HCLK1
HCLKB1
SEL100/133
VSS
VDDA
VSSA
PWRDWN
VDD
HCLK4
VSS
HCLKB4
HCLK5
HCLKB5
VDD
13
14
15
16
17
18
31
32
33
34
35
36
HCLK2
HCLKB2
VSS
HCLK3
HCLKB3
HCLK6
VSS
HCLKB6
HCLK7
HCLKB7
VDD
19
30
VDD
REFCLK/SELC
20
21
22
23
24
25
26
27
28
29
SPREAD
VSS
XIN
XOUT
VDD
MULTSEL0
VSSA
MULTSEL1
IREF
VDDA
VDD
VSS
SW00665
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
ORDER CODE
DRAWING NUMBER
48-Pin Plastic TSSOP
0 to +70
°C
PCK2022RADGG
SOT362-1
Intel and Pentium III are trademarks of Intel Corporation.
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