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ICS8761CYLFT Datasheet

  • ICS8761CYLFT

  • LOW VOLTAGE, LOW SKEW, PCI / PCI-X CLOCK GENERATOR

  • 15頁

  • ICS

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Integrated
Circuit
Systems, Inc.
ICS8761
L
OW
V
OLTAGE
, L
OW
S
KEW
,
PCI / PCI-X C
LOCK
G
ENERATOR
F
EATURES
鈥?/div>
Fully integrated PLL
鈥?/div>
17 LVCMOS/LVTTL outputs, 15鈩?typical output impedance
鈥?/div>
Selectable crystal oscillator interface or
LVCMOS/LVTTL REF_CLK
鈥?/div>
Maximum output frequency: 166.67MHz
鈥?/div>
Maximum crystal input frequency: 38MHz
鈥?/div>
Maximum REF_CLK input frequency: 83.33MHz
鈥?/div>
Individual banks with selectable output dividers for
generating 33.333MHz, 66.66MHz, 100MHz and
133.333MHz simultaneously
鈥?/div>
Separate feedback control for generating PCI / PCI-X
frequencies from a 20MHz or 25MHz crystal or 33.333MHz
or 66.666MHz reference frequency
鈥?/div>
Cycle-to-cycle jitter: 70ps (maximum)
鈥?/div>
Period jitter, RMS: 17ps (maximum)
鈥?/div>
Output skew: 230ps (maximum)
鈥?/div>
Bank skew: 40ps (maximum)
鈥?/div>
Static phase offset: 0 鹵 150ps (maximum)
G
ENERAL
D
ESCRIPTION
The ICS8761 is a low voltage, low skew PCI /
PCI-X Clock Generator and a member of the
HiPerClockS鈩?/div>
HiPerClockS鈩?family of High Performance Clock
Solutions from ICS. The ICS8761 has a selectable
REF_CLK or crystal input. The REF_CLK input
accepts LVCMOS or LVTTL input levels. The ICS8761 has a
fully integrated PLL along with frequency configurable clock
and feedback outputs for multiplying and regenerating clocks
with 鈥渮ero delay鈥? Using a 20MHz or 25MHz crystal or a
33.333MHz or 66.666MHz reference frequency, the ICS8761
will generate output frequencies of 33.333MHz, 66.666MHz,
100MHz and 133.333MHz simultaneously.
ICS
The low impedance LVCMOS/LVTTL outputs of the ICS8761
are designed to drive 50鈩?series or parallel terminated
transmission lines.
B
LOCK
D
IAGRAM
OEA
MR
D_SELA0
D_SELA1
REF_CLK
XTAL1
OSC
1
0
梅3
梅4
梅6
梅12
00
01
10
11
鈥?/div>
Full 3.3V or 3.3V core, 2.5V multiple output supply modes
鈥?/div>
0擄C to 85擄C ambient operating temperature
鈥?/div>
Lead-Free package available
QA0
QA1
0
1
P
IN
A
SSIGNMENT
V
DDOC
V
DDOC
V
DDOD
V
DDOD
GND
GND
GND
GND
QC0
QC1
QC2
QC3
QD0
QD1
QD2
QA3
REF_CLK
1
2
3
4
5
6
7
8
9
XTAL2
XTAL_SEL
FB_IN
PLL_SEL
OEB
D_SELB1
D_SELB0
PLL
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
48
47
46
45
44
43
42
QD3
QA2
GND
FB_OUT
V
DDOFB
FB_IN
V
DD
FBDIV_SEL0
FBDIV_SEL1
MR
V
DD
D_SELD0
D_SELD1
OED
OEB
D_SELB0
D_SELB1
GND
00
01
10
11
QB0
QB1
QB2
QB3
GND
XTAL1
XTAL2
V
DD
XTAL_SEL
PLL_SEL
V
DDA
QC0
OEC
00
01
10
11
QC1
ICS8761
41
40
39
38
37
36
35
34
D_SELC1
D_SELC0
OED
00
01
10
11
V
DD
QC2
D_SELC0
QC3
D_SELC1
OEC
OEA
D_SELA0
D_SELA1
GND
10
11
12
13
14
15
QD0
QD1
QD2
QD3
33
16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
QA0
QA1
QA2
QA3
QB0
QB1
QB2
V
DDOA
V
DDOA
V
DDOB
V
DDOB
GND
GND
GND
GND
QB3
D_SELD1
D_SELD0
梅6
梅12
梅16
梅20
00
01
10
11
FB_OUT
FBDIV_SEL1
FBDIV_SEL0
8761CY
64-Lead LQFP
10mm x 10mm x 1.4mm package body
Y package
Top View
www.icst.com/products/hiperclocks.html
1
REV. C SEPTEMBER 7, 2004

ICS8761CYLFT 產(chǎn)品屬性

  • ICS8761

  • 500

  • 集成電路 (IC)

  • 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器

  • HiPerClockS™

  • 時(shí)鐘發(fā)生器

  • 帶旁路

  • LVCMOS，LVTTL，晶體

  • LVCMOS，LVTTL

  • 1

  • 2:16

  • 無/無

  • 166.67MHz

  • 是/是

  • 3.135 V ~ 3.465 V

  • 0°C ~ 85°C

  • 表面貼裝

  • 64-LQFP

  • 64-TQFP（10x10）

  • 帶卷 (TR)

  • 8761CYLFT

ICS8761CYLFT相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    LOW SKEW, 1-TO-2 LVCMOS / LVTTL FANOUT BUFFER
    ICS
  • 英文版
    LOW SKEW, 1-TO-2 LVCMOS / LVTTL FANOUT BUFFER
    ICST [Inte...
  • 英文版
    LOW SKEW, 1-TO-4 LVCMOS / LVTTL FANOUT BUFFER
    ICSI
  • 英文版
    LOW SKEW, 1-TO-4 LVCMOS / LVTTL FANOUT BUFFER
    ICST [Inte...
  • 英文版
    LOW SKEW, 1-TO-4, MULTIPLEXED DIFFERENTIAL/ LVCMOS-TO-LVCMOS...
    ICS
  • 英文版
    LOW SKEW, 1-TO-4, MULTIPLEXED DIFFERENTIAL/ LVCMOS-TO-LVCMOS...
    ICST [Inte...
  • 英文版
    LOW SKEW, 1-TO-12 LVCMOS / LVTTL FANOUT BUFFER
    ICSI
  • 英文版
    LOW SKEW, 1-TO-12 LVCMOS / LVTTL FANOUT BUFFER
    ICST [Inte...
  • 英文版
    LOW SKEW, 1-TO-16, LVCMOS / LVTTL FANOUT BUFFER W/1.2V LVCMO...
    ICST [Inte...
  • 英文版
    Low Skew 1-to-16 Fanout Buffer
    ICS
  • 英文版
    Low Skew 1-to-16 Fanout Buffer
    ICST [Inte...
  • 英文版
    LOW SKEW, 1-TO-24 DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER
    ICS
  • 英文版
    LOW SKEW, 1-TO-24 DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER
    ICST [Inte...
  • 英文版
    350MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER
    ICS
  • 英文版
    350MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER
    ICST [Integrate...
  • 英文版
    700MHZ, CRYSTAL OSCILLATOR-TO-DIFFERENTIAL LVDS FREQUENCY SY...
    ICSI
  • 英文版
    700MHZ, CRYSTAL OSCILLATOR-TO-DIFFERENTIAL LVDS FREQUENCY SY...
    ICST [Integrate...
  • 英文版
    Low Skew 1-to-16 Differential Current Mode Fanout Buffer
    ICS
  • 英文版
    Low Skew 1-to-16 Differential Current Mode Fanout Buffer
    ICST [Integrate...
  • 英文版
    LOW SKEW, 1-TO-16 DIFFERENTIAL-TO-LVDS CLOCK DISTRIBUTION CH...
    ICS

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