SY89531LHC Micrel Inc, SY89531LHC Datasheet

IC SYNTHESIZR LVPECL/HSTL 64TQFP

SY89531LHC

Manufacturer Part Number
SY89531LHC
Description
IC SYNTHESIZR LVPECL/HSTL 64TQFP
Manufacturer
Micrel Inc
Series
Precision Edge®r
Type
Clock/Frequency Synthesizerr
Datasheet

Specifications of SY89531LHC

Pll
Yes
Input
Crystal
Output
HSTL, LVPECL
Number Of Circuits
1
Ratio - Input:output
1:13
Differential - Input:output
No/Yes
Frequency - Max
500MHz
Divider/multiplier
Yes/No
Voltage - Supply
1.6 V ~ 3.6 V
Operating Temperature
0°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-TQFP Exposed Pad, 64-eTQFP, 64-HTQFP, 64-VQFP
Frequency-max
500MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SY89531LHC
Manufacturer:
Micrel Inc
Quantity:
10 000
Micrel, Inc.
Precision Edge is a registered trademark of Micrel, Inc.
M9999-010808
hbwhelp@micrel.com or (408) 955-1690
FEATURES
APPLICATIONS
Integrated synthesizer plus fanout buffers, clock
drivers, and translator in a single 64-pin package
3.3V 10% power supply
Low jitter: <50ps cycle-to-cycle
Low pin-to-pin skew: <50ps
33MHz to 500MHz output frequency range
Direct interface to crystal: 14MHz to 18MHz
LVPECL/HSTL outputs
TTL/CMOS compatible control logic
3 independently programmable output frequency
banks:
• 9 differential output pairs @BankB (HSTL)
• 2 differential output pairs @BankA (LVPECL)
• 2 differential output pairs @BankC (LVPECL)
ExtVCO input allows synthesizer and crystal
interface to be bypassed
Available in 64-pin EPAD-TQFP
Servers
Workstations
Parallel processor-based systems
Other high-performance computing
Communications
3.3V, PRECISION, 33MHz to 500MHz
PROGRAMMABLE LVPECL AND HSTL BUS
CLOCK SYNTHESIZER
1
part of a 3.3V, high-frequency, precision PLL-based clock
synthesizer family optimized for multi-frequency, multi-
processor server, enterprise networking and other computing
applications that require the highest precision and integration.
The device integrates the following blocks into a single
monolithic IC:
part-to-part skew associated with the discrete alternative,
resulting in superior system-level timing as well as reduced
board space and power. For applications that must interface
to a reference clock, see the SY89536L.
Micrel’s web site at: www.micrel.com.
*Refer to individual data sheet for details.
Device
SY89531L
SY89532L*
SY89533L*
SY89534L*
SY89535L*
SY89536L*
DESCRIPTION
The SY89531L programmable clock synthesizer/driver is
• PLL (Phase-Lock-Loop)-based synthesizer
• Fanout buffers
• Clock generator (dividers)
• Logic translation (LVPECL, HSTL)
This level of integration minimizes the additive jitter and
Datasheets and support documentation can be found on
PRODUCT SELECTION GUIDE
Crystal
X
X
X
Input
Reference
X
X
X
LVPECL
LVPECL LVPECL LVPECL
LVPECL
LVPECL LVPECL LVPECL
LVPECL
LVPECL
BankA
Precision Edge
Precision Edge
Rev.: C
Issue Date: January 2008
Output
BankB
HSTL
LVDS
LVDS
HSTL
Precision Edge
SY89531L
Amendment: /0
SY89531L
LVPECL
LVPECL
LVPECL
LVPECL
BankC
®
®
®

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SY89531LHC Summary of contents

Page 1

Micrel, Inc. FEATURES Integrated synthesizer plus fanout buffers, clock drivers, and translator in a single 64-pin package 3.3V 10% power supply Low jitter: <50ps cycle-to-cycle Low pin-to-pin skew: <50ps 33MHz to 500MHz output frequency range Direct interface to crystal: 14MHz ...

Page 2

... Contact factory for die availability. Dice are guaranteed Tape and Reel. 3. Pb-Free package is recommended for new designs. 2 Precision Edge (1) Operating Package Range Marking Commercial SY89531LHC Commercial SY89531LHC Commercial SY89531LHZ with Pb-Free bar-line indicator Pb-Free Commercial SY89531LHZ with Pb-Free bar-line indicator Pb-Free = Electricals only. A ® SY89531L Lead Finish ...

Page 3

Micrel, Inc. PIN DESCRIPTION Power Pin Number Pin Name 60 CC_Logic 62 V CCA CCO 30, 31 CCO CCO 9, 25, 63, 29 GND (exposed pad) Configuration Pin Number ...

Page 4

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ................................... –0.5V to +4. Pin Potential to Ground Pin (All V CC Input Voltage (except XTAL 1,2 pins) (V XTAL 1, 2 Input Voltage (V ) ...... (V XTAL ...

Page 5

Micrel, Inc. DC ELECTRICAL CHARACTERISTICS LVCMOS/LVTTL Input Control Logic (V Symbol Parameter V Input HIGH Voltage IH V Input LOW Voltage IL I Input HIGH Current IH I Input LOW Current IL ExtVCO (Pins 5, 6) INPUT (All V pins ...

Page 6

Micrel, Inc. AC ELECTRICAL CHARACTERISTICS A/C = +3.3V 10%, V CC_LOGIC CCA CCO Symbol Parameter f Xtal Input Frequency Range IN f Output Frequency Range OUT t Internal VCO Frequency Range VCO External VCO Frequency ...

Page 7

Micrel, Inc. TIMING DIAGRAMS Conditions: Internal VCO, unless otherwise stated. VCO FSEL FOUT OUT_SYNC VCO (ext.) FSEL FOUT OUT_SYNC VCO FSEL FOUT OUT_SYNC M9999-010808 hbwhelp@micrel.com or (408) 955-1690 001 010 t SETUP_FSEL t OUTPUT_RESET t HOLD_FSEL Frequency Programming (Internal VCO ...

Page 8

Micrel, Inc. FUNCTIONAL BLOCK DIAGRAM 1 4 VCO_SEL /ExtVCO 5 Buf 6 ExtVCO Loop Ref 7 8 Loop Filter 14MHz to 18MHz GND 9 Phase Charge 10 XTAL2 Detector Pump Oscillator 11 XTAL1 V —1.425V CC Reference VBB_Ref 12 or ...

Page 9

Micrel, Inc. FUNCTIONAL DESCRIPTION At the core of the SY89531L clock synthesizer is a precision PLL driven by 14MHz to 18MHz series resonant crystal. For users who wish to supply a TTL or LVPECL clock input, please use the SY89536L. ...

Page 10

Micrel, Inc. Crystal Input and Oscillator Interface The SY89531L features a fully integrated on-board oscillator to minimize system implementation costs. The oscillator is a series resonant, multivibrator type design, and thus, a series-resonant crystal is preferred, but not required. A ...

Page 11

Micrel, Inc. Power Supply Filtering Techniques As with any high-speed integrated circuit, power supply filtering is very important minimum, V and all V pins should be individually connected using a CCO via to the power supply plane, and ...

Page 12

Micrel, Inc. FEEDBACK DIVIDE SELECT TABLE (MSEL ...

Page 13

Micrel, Inc. INPUT INTERFACE FOR EXTVCO PINS V V CC(DRIVER) CC TTL EXTVCO LVTTL /EXTVCO 1% SY89531L Figure 5a. 3.3V “TTL” 2.3V to 2.7V 3.0V to 3.6V 2.5V EXTVCO LVTTL /EXTVCO SY89531L 1% Figure 5c. 2.5V “LVTTL” EXTVCO ...

Page 14

Micrel, Inc CC(DRIVER CML 130 130 1% 1% Figure 5g. CML AC-Coupled (Long Trace Lengths) M9999-010808 hbwhelp@micrel.com or (408) 955-1690 V CC EXTVCO /EXTVCO SY89531L 14 Precision Edge SY89531L V CC EXTVCO 100 ...

Page 15

Micrel, Inc. OUTPUT TERMINATION RECOMMENDATIONS +3.3V “Source” Figure 6. PECL Parallel Termination Thevenin Equivalent “Source” Figure 7. LVPECL Three-Resistor “Y-Termination” Note 1. Place termination resistors as close to destination inputs as possible. Note 2. PECL Y-termination is a power-saving alternative ...

Page 16

Micrel, Inc. 64-PIN EPAD-TQFP (DIE UP) (H64-1) +0.03 –0.03 +0.012 –0.012 Heat Dissipation Package Notes: Note 1. Package meets Level 2 moisture sensitivity classification, and is shipped in dry-pack form. Note 2. Exposed pads must be soldered to a ground ...

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