ics8536-01 Integrated Device Technology, ics8536-01 Datasheet

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ics8536-01

Manufacturer Part Number
ics8536-01
Description
Xtal, Lvcmos, Differential Input Lvpecl Output 1 6 266-mhz Buffer
Manufacturer
Integrated Device Technology
Datasheet
LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-
TO-3.3V, 2.5V LVPECL FANOUT BUFFER
B
IDT
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
XTAL_OUT
G
ICS8536-01 has selectable crystal, single ended or differen-
tial clock inputs. The single ended clock input accepts LVCMOS
or LVTTL input levels and translates them to LVPECL levels.
The CLK1, nCLK1 pair can accept most standard differential
input levels. The output enable is internally synchronized to
eliminate runt pulses on the outputs during asynchronous
assertion/deassertion of the clock enable pin.
Guaranteed output and part-to-part skew characteristics make
the ICS8536-01 ideal for those applications demanding well
defined performance and repeatability.
CLK_SEL0
CLK_SEL1
HiPerClockS™
IC S
XTAL_IN
CLK_EN
LOCK
ENERAL
nCLK1
CLK0
CLK1
/ ICS
Pullup
Pulldown
Pulldown
Pulldown
Pulldown
Pullup
3.3V, 2.5V LVPECL FANOUT BUFFER
D
The ICS8536-01 is a low skew, high performance
1-to-6 Selectable Crystal, Single-Ended, or Differ-
ential Input-to-3.3V, 2.5V LVPECL Fanout Buffer
and a member of the HiPerClockS™ family of High
Perfor mance Clock Solutions from IDT. The
IAGRAM
OSC
D
ESCRIPTION
00
01
1X
D
LE
Q
6 LVPECL Outputs
Q0
nQ0
Q5
nQ5
1
F
• Six 3.3V, 2.5V LVPECL outputs
• Selectable crystal oscillator, differential CLK1/nCLK1 pair
• CLK1/nCLK pair can accept the following differential
• Maximum output frequency: 266MHz
• Crystal frequency range: 14MHz - 40MHz
• Full 3.3V or 2.5V supply mode
• 0°C to 70°C ambient operating temperature
or LVCMOS/LVTTL clock input
input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL
Output skew: 35ps (typical)
Part-to-part skew: TBD
Additive phase jitter, RMS: 0.19ps (typical)
Propagation delay: 2.11ns (typical), CLK1/nCLK1
Industrial temperature information available upon request
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
EATURES
XTAL_OUT
CLK_SEL0
P
XTAL_IN
CLK_EN
4.40mm x 7.8mm x 0.92mm
IN
nQ2
nQ1
nQ0
V
V
Q2
Q1
Q0
ICS8536AG-01 REV. B NOVEMBER 3, 2006
CC
EE
A
24-Lead TSSOP
ICS8536-01
package body
G Package
SSIGNMENT
Top View
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
PRELIMINARY
Q3
nQ3
V
Q4
nQ4
V
Q5
nQ5
CLK_SEL1
nCLK1
CLK1
CLK0
CC
CC
ICS8536-01

Related parts for ics8536-01

ics8536-01 Summary of contents

Page 1

... LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL- TO-3.3V, 2.5V LVPECL FANOUT BUFFER G D ENERAL ESCRIPTION The ICS8536- low skew, high performance IC S 1-to-6 Selectable Crystal, Single-Ended, or Differ- HiPerClockS™ ential Input-to-3.3V, 2.5V LVPECL Fanout Buffer and a member of the HiPerClockS™ family of High Perfor mance Clock Solutions from IDT. The ICS8536-01 has selectable crystal, single ended or differen- tial clock inputs ...

Page 2

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER ABLE IN ESCRIPTIONS ...

Page 3

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER T 3A ABLE ONTROL NPUT UNCTION ...

Page 4

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER BSOLUTE AXIMUM ATINGS Supply Voltage Inputs, V -0. Outputs Continuous Current 50mA Surge Current 100mA Package Thermal Impedance, JA Storage Temperature, T -65°C to 150°C STG T 4A ABLE OWER UPPLY ...

Page 5

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER T 4D ABLE IFFERENTIAL HARACTERISTICS ...

Page 6

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER T 6A ABLE HARACTERISTICS ...

Page 7

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER The spectral purity in a band at a specific offset from the fundamental compared to the power of the fundamental is called the dBc Phase Noise. This value is normally expressed using a Phase noise plot and is most often the specified plot in many applications ...

Page 8

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER P ARAMETER LVPECL V EE -1.3V±0.165V 3.3V LVPECL UTPUT OAD EST V CC nCLK1 V Cross Points PP CLK1 IFFERENTIAL NPUT EVELS PART 1 nQx Qx PART 2 nQy Qy t sk( ART TO ART KEW IDT ™ / ICS ™ ...

Page 9

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER nCLK1 CLK1 nQ0:nQ5 Q0: ROPAGATION ELAY IFFERENTIAL NPUT 80% Clock 20% Outputs UTPUT ISE ALL IME IDT ™ / ICS ™ 3.3V, 2.5V LVPECL FANOUT BUFFER CLK0 nQ0:nQ5 Q0: ROPAGATION 80 20 PRELIMINARY ...

Page 10

... R1, R2 and C1. This bias circuit should be located as close as possible to the input pin. The ratio F IGURE RYSTAL NPUT NTERFACE The ICS8536-01 has been characterized with 18pF parallel resonant crystals. The capacitor values shown in Figure 2 below 18pF Parallel Crystal IDT ™ / ICS ™ 3.3V, 2.5V LVPECL FANOUT BUFFER A I ...

Page 11

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER LVCMOS XTAL I TO NTERFACE The XTAL_IN input can accept a single-ended LVCMOS signal through an AC coupling capacitor. A general interface diagram is shown in Figure 3. The XTAL_OUT pin can be left floating. The input edge rate can be as slow as 10ns. For LVCMOS inputs ...

Page 12

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER T LVPECL O ERMINATION FOR UTPUTS The clock layout topology shown below is a typical termination for LVPECL outputs. The two different layouts mentioned are recommended only as guidelines. FOUT and nFOUT are low impedance follower outputs that generate ECL/LVPECL compatible outputs ...

Page 13

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER T 2.5V LVPECL O ERMINATION FOR Figure 5A and Figure 5B show examples of termination for 2.5V LVPECL driver. These terminations are equivalent to terminating 2V. For V = 2.5V, the very close to ground 2.5V VCC=2.5V R1 250 Ohm Ohm 2,5V LVPECL Driv ...

Page 14

... Equations and example calculations are also provided. 1. Power Dissipation. The total power dissipation for the ICS8536-01 is the sum of the core power plus the power dissipated in the load(s). The following is the power dissipation for V NOTE: Please refer to Section 3 for details on calculating power dissipated in the load. ...

Page 15

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER 3. Calculations and Equations. The purpose of this section is to derive the power dissipated into the load. LVPECL output driver circuit and termination are shown in Figure calculate worst case power dissipation into the load, use the following equations which assume a 50 voltage ...

Page 16

... ABLE VS IR LOW ABLE FOR JA Multi-Layer PCB, JEDEC Standard Test Boards T C RANSISTOR OUNT The transistor count for ICS8536-01 is: 513 IDT ™ / ICS ™ 3.3V, 2.5V LVPECL FANOUT BUFFER R I ELIABILITY NFORMATION 24 L TSSOP EAD by Velocity (Meters per Second 70°C/W ...

Page 17

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER ACKAGE UTLINE UFFIX FOR IDT ™ / ICS ™ 3.3V, 2.5V LVPECL FANOUT BUFFER TSSOP EAD ABLE ACKAGE IMENSIONS ...

Page 18

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER T 10 ABLE RDERING NFORMATION ...

Page 19

... ICS8536-01 LOW SKEW, 1-TO-6, CRYSTAL/LVCMOS/DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 (outside U.S.) © ...

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