ics86953i-147 Integrated Device Technology, ics86953i-147 Datasheet

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ics86953i-147

Manufacturer Part Number
ics86953i-147
Description
Low Skew, 1-to-9 Ics86953i-147 Differential-to-lvcmos / Lvttl Zero Delay Buffer
Manufacturer
Integrated Device Technology
Datasheet
ICS86953BYI-147 REVISION B FEBRUARY 26, 2010
G
formance clock applications. Along with a fully integrated PLL, the
ICS86953I-147 contains frequency configurable outputs and an
external feedback input for regenerating clocks with “zero delay”.
P
B
HiPerClockS™
IC S
IN
LOCK
ENERAL
VCO_SEL
nBYPASS
PLL_SEL
A
FB_CLK
MR/nOE
nPCLK
PCLK
SSIGNMENT
FB_CLK
D
The ICS86953I-147 is a low voltage, low skew
1-to-9 Differential-to-LVCMOS/LVTTL Clock Genera-
tor. The PCLK, nPCLK pair can accept most standard
differential input levels. With output frequencies up to
175MHz, the ICS86953I-147 is targeted for high per-
PCLK
GND
V
IAGRAM
DDA
D
nc
nc
nc
nc
7mm x 7mm x 1.4mm package body
ESCRIPTION
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
LOW SKEW, 1-TO-9
DIFFERENTIAL-TO-LVCMOS / LVTTL ZERO
DELAY BUFFER
9 10 11 12 13 14 15 16
ICS86953I-147
32-Lead LQFP
Y package
Top View
Detector
Phase
LPF
24
23
22
21
20
19
18
17
Q1
V
Q2
GND
Q3
V
Q4
GND
DDO
DDO
VCO
1
0
1
F
• Nine single ended LVCMOS/LVTTL outputs;
• PCLK, nPCLK pair can accept the following differential
• Maximum output frequency: PLL Mode, 175MHz
• VCO range: 250MHz to 700MHz
• 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
• Available in both standard (RoHS 5) and lead-free (RoHS 6)
(8) clocks, (1) feedback
input levels: LVPECL, CML, SSTL
packages
EATURES
÷2
0
1
÷4
0
1
©2010 Integrated Device Technology, Inc.
ICS86953I-147
7
/
QFB
Q0:Q6
Q7

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ics86953i-147 Summary of contents

Page 1

... HiPerClockS™ tor. The PCLK, nPCLK pair can accept most standard differential input levels. With output frequencies up to 175MHz, the ICS86953I-147 is targeted for high per- formance clock applications. Along with a fully integrated PLL, the ICS86953I-147 contains frequency configurable outputs and an external feedback input for regenerating clocks with “zero delay”. ...

Page 2

... ICS86953I-147 ABLE IN ESCRIPTIONS ...

Page 3

... ICS86953I-147 BSOLUTE AXIMUM ATINGS Supply Voltage Inputs Outputs Package Thermal Impedance, θ JA Storage Temperature, T STG T 4A ABLE OWER UPPLY HARACTERISTICS ...

Page 4

... ICS86953I-147 T 5. PLL ABLE NPUT EFERENCE HARACTERISTICS ABLE HARACTERISTICS DDA ...

Page 5

... ICS86953I-147 P ARAMETER 1.65V± DDA V DDO LVCMOS GND -1.65V±5% 3. UTPUT OAD EST IRCUIT V DDO Q0:Q7, 2 QFB ➤ tcycle n tjit(cc) = tcycle n – tcycle n+1 1000 Cycles YCLE TO YCLE ITTER 80% 20% Q0:Q7, t QFB UTPUT ISE ALL IME Q0:Q7, QFB PERIOD ...

Page 6

... ECHNIQUES As in any high speed analog circuitry, the power supply pins are vulnerable to random noise. To achieve optimum jitter perfor- mance, power supply isolation is required. The ICS86953I-147 provides separate power supplies to isolate any high switching noise from the outputs to the internal PLL. V individually connected to the power supply plane through vias, and 0.01µ ...

Page 7

... ICS86953I-147 LVPECL LOCK NPUT NTERFACE The PCLK /nPCLK accepts LVPECL, CML, SSTL and other dif- ferential signals. Both differential inputs must meet the V V input requirements. Figures show interface ex- CMR amples for the PCLK/nPCLK input driven by the most common 3 ...

Page 8

... ICS86953I-147 L G AYOUT UIDELINE The schematic of the ICS86953I-147 layout example is shown in Figure 4A. The ICS86953I-147 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 depend VCC Ohm Ohm ...

Page 9

... The series termination resistors should be located as close to the driver pins as possible VCCA U1 Pin Ohm Trace F 4B. PCB IGURE OARD AYOUT 9 the transmission lines. GND 50 Ohm Trace VDD VIA Other signals ICS86953I-147 OR ©2010 Integrated Device Technology, Inc. ...

Page 10

... 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-147 is: 1758 ICS86953BYI-147 REVISION B FEBRUARY 26, 2010 LOW SKEW, 1-TO-9 DIFFERENTIAL-TO-LVCMOS / LVTTL ZERO DELAY BUFFER R I ELIABILITY ...

Page 11

... ICS86953I-147 ACKAGE UTLINE UFFIX FOR T ABLE Reference Document: JEDEC Publication 95, MS-026 ICS86953BYI-147 REVISION B FEBRUARY 26, 2010 LOW SKEW, 1-TO-9 DIFFERENTIAL-TO-LVCMOS / LVTTL ZERO DELAY BUFFER LQFP EAD ACKAGE IMENSIONS ...

Page 12

... ICS86953I-147 ABLE RDERING NFORMATION ...

Page 13

... ICS86953I-147 & ICS86953BYI-147 REVISION B FEBRUARY 26, 2010 ...

Page 14

... ICS86953I-147 www.IDT.com 6024 Silver Creek Valley Road Sales San Jose, CA 95138 800-345-7015 (inside USA) +408-284-8200 (outside USA) Fax: 408-284-2775 www.IDT.com/go/contactIDT DISCLAIMER Integrated Device Technology, Inc. (IDT) and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this document, including descriptions of product features and performace, is subject to change without notice ...

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