ics86953 Integrated Device Technology, ics86953 Datasheet

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ics86953

Manufacturer Part Number
ics86953
Description
Lvpecl-input Lvcmos-output 1 9 110-mhz Clock Zero-delay Buffer
Manufacturer
Integrated Device Technology
Datasheet
G
ferential input levels. With output frequencies up to 110MHz,
the ICS86953I is targeted for high performance clock applica-
tions. Along with a fully integrated PLL, the ICS86953I contains
frequency configurable outputs and an external feedback input
for regenerating clocks with “zero delay”.
P
B
86953BYI
HiPerClockS™
ICS
IN
LOCK
ENERAL
VCO_SEL
nBYPASS
PLL_SEL
FB_CLK
A
FB_CLK
MR/nOE
nPCLK
PCLK
PCLK
GND
SSIGNMENT
V
DDA
nc
nc
nc
nc
D
The ICS86953I is a low voltage, low skew 1-to-9
Differential-to-LVCMOS/LVTTL Clock Generator
and a member of the HiPerClockS™ family of High
Performance Clock Solutions from ICS. The
PCLK, nPCLK pair can accept most standard dif-
7mm x 7mm x 1.4mm package body
IAGRAM
Integrated
Circuit
Systems, Inc.
D
1
2
3
4
5
6
7
8
ESCRIPTION
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
32-Lead LQFP
ICS86953I
Y package
Top View
Detector
Phase
D
www.icst.com/products/hiperclocks.html
24
23
22
21
20
19
18
17
IFFERENTIAL
LPF
Q1
V
Q2
GND
Q3
V
Q4
GND
DDO
DDO
VCO
-
1
TO
F
• 9 single ended LVCMOS/LVTTL outputs;
• PCLK, nPCLK pair can accept the following differential
• Maximum output frequency: PLL Mode, 110MHz
• VCO range: 200MHz to 500MHz
• Output skew: 75ps (maximum)
• Cycle-to-cycle jitter: 50ps (maximum)
• Static phase offset: 90ps ± 110ps
• 3.3V supply voltage
• -40°C to 85°C ambient operating temperature
• Pin compatible to the MPC953
-LVCMOS / LVTTL Z
(8) clocks, (1) feedback
input levels: LVPECL, CML, SSTL
0
1
EATURES
÷2
0
1
÷4
0
1
ERO
L
OW
ICS86953I
D
S
ELAY
KEW
7
REV. B APRIL 23, 2004
/
QFB
Q0:Q6
Q7
, 1-
B
UFFER
TO
-9

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ics86953 Summary of contents

Page 1

... PCLK, nPCLK pair can accept most standard dif- ferential input levels. With output frequencies up to 110MHz, the ICS86953I is targeted for high performance clock applica- tions. Along with a fully integrated PLL, the ICS86953I contains frequency configurable outputs and an external feedback input for regenerating clocks with “zero delay”. ...

Page 2

... www.icst.com/products/hiperclocks.html 2 ICS86953I KEW D ERO ELAY ...

Page 3

... www.icst.com/products/hiperclocks.html 3 ICS86953I KEW D ERO ELAY = -40°C 85° ...

Page 4

... www.icst.com/products/hiperclocks.html 4 ICS86953I KEW D ERO ELAY = -40°C 85° ...

Page 5

... UTPUT nPCLK 2V PCLK 0. Q0:Q7, QFB P ROPAGATION nPCLK PCLK 2 FB_CLK (where t (Ø) is any random sample, and t (Ø) of the sampled cycles measured on controlled edges HASE ITTER ERIOD www.icst.com/products/hiperclocks.html 5 ICS86953I KEW D ERO ELAY I NFORMATION V Cross Points NPUT EVEL V DDO 2 V DDO 2 ...

Page 6

... T OWER UPPLY ILTERING ECHNIQUES As in any high speed analog circuitry, the power supply pins are vulnerable to random noise. The ICS86953I provides separate power supplies to isolate any high switching noise from the outputs to the internal PLL. V and V DDA DDO connected to the power supply plane through vias, and bypass capacitors should be used for each pin ...

Page 7

... H N NPUT RIVEN IGURE 3.3V 3.3V R4 125 LVDS CLK nCLK HiPerClockS Input R2 84 PCLK 3D NPUT RIVEN IGURE RIVER www.icst.com/products/hiperclocks.html 7 ICS86953I KEW D ERO ELAY 2.5V 3.3V 2. 120 120 SSTL Ohm PCLK Ohm nPCLK R1 R2 120 120 PCLK/ PCLK I ...

Page 8

... Circuit Systems, Inc AYOUT UIDELINE The schematic of the ICS86953I layout example is shown in Figure 4A. The ICS86953I recommended PCB board layout for this example is shown in Figure 4B. This layout example is used as a general guideline. The layout in the actual system will VDD 10u ...

Page 9

... The series termination resistors should be located as close to the driver pins as possible. 50 Ohm Trace Ohm Trace 4B. PCB IGURE OARD AYOUT OR www.icst.com/products/hiperclocks.html 9 ICS86953I KEW D ERO ELAY GND VDD VIA Other signals C5 C4 ICS86953I REV. B APRIL 23, 2004 , UFFER ...

Page 10

... Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs RANSISTOR OUNT The transistor count for ICS86953I is: 1758 86953BYI D - -LVCMOS / LVTTL Z IFFERENTIAL TO ...

Page 11

... ° www.icst.com/products/hiperclocks.html 11 ICS86953I KEW D ERO ELAY ...

Page 12

... www.icst.com/products/hiperclocks.html 12 ICS86953I KEW D ERO ELAY ° ...

Page 13

... www.icst.com/products/hiperclocks.html 13 ICS86953I KEW D ERO ELAY ...

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