SY87700LZI Micrel Inc, SY87700LZI Datasheet

IC CLOCK/DATA RECOVERY 28-SOIC

SY87700LZI

Manufacturer Part Number
SY87700LZI
Description
IC CLOCK/DATA RECOVERY 28-SOIC
Manufacturer
Micrel Inc
Type
Clock and Data Recovery (CDR)r
Datasheet

Specifications of SY87700LZI

Input
PECL, TTL
Output
PECL, TTL
Frequency - Max
1.25GHz
Voltage - Supply
3.15 V ~ 3.45 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-SOIC (7.5mm Width)
Frequency-max
1.25GHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SY87700LZI
Manufacturer:
TI
Quantity:
839
Part Number:
SY87700LZI
Manufacturer:
SYNCMOS
Quantity:
20 000
M9999-111406
hbwhelp@micrel.com or (408) 955-1690
Micrel, Inc.
AnyRate is a registered trademark of Micrel, Inc.
FEATURES
BLOCK DIAGRAM
Industrial temperature range (–40
3.3V power supply
SONET/SDH/ATM compatible
Clock and data recovery from 32Mbps up to
175Mbps NRZ data stream, clock generation from
32Mbps to 175Mbps
Two on-chip PLLs: one for clock generation and
another for clock recovery
Selectable reference frequencies
Differential PECL high-speed serial I/O
Line receiver input: no external buffering needed
Link Fault indication
100k ECL compatible I/O
Complies with Bellcore, ITU/CCITT and ANSI
specifications for applications such as OC-1 and
OC-3 as well as proprietary applications
Available in 32-pin EPAD-TQFP and 28-pin SOIC
packages (28-pin SOIC is available, but is not
recommended for new designs.)
REFCLK
(PECL)
(PECL)
RDINN
RDINP
(TTL)
CD
°
BY 8, 10, 16, 20
DIVSEL 1/2
C to +85
FREQUENCY
DETECTOR
DIVIDER
FREQUENCY
(TTL)
DETECTOR
DETECTOR
PHASE/
Use lower-power SY87700AL for new designs
PHASE/
PHASE
°
C)
PLLS P/N
CHARGE
CLOCK AND DATA RECOVERY
PUMP
0
1
3.3V 32-175Mbps AnyRate
SY87700L
PLLR P/N
CHARGE
PUMP
1
VCO
Retiming integrated circuit for data rates from 32Mbps
up to 175Mbps NRZ. The device is ideally suited for
SONET/SDH/ATM applications and other high-speed data
transmission systems.
synchronizing the on-chip VCO directly to the incoming
data stream. The VCO center frequency is controlled by
the reference clock frequency and the selected divide
ratio. On-chip clock generation is performed through the
use of a frequency multiplier PLL with a byte rate source
as reference.
circuit.
site at: www.micrel.com.
DESCRIPTION
APPLICATIONS
The SY87700L is a complete Clock Recovery and Data
Clock recovery and data retiming is performed by
The SY87700L also includes a link fault detection
All support documentation can be found on Micrel’s web
SONET/SDH/ATM OC-1 and OC-3
Fast Ethernet, SMPTE 259
Proprietary architecture up to 175Mbps
FREQSEL 1/2/3
(TTL)
VCO
CLKSEL
DETECTOR
(TTL)
1
0
FAULT
LINK
®
(PECL)
RCLKP
RCLKN
(TTL)
TCLKP
(PECL)
V
V
RDOUTP
RDOUTN
LFIN
TCLKN
V
GND
(PECL)
CC
CCA
CCO
Rev.: H
Issue Date: September 2006
SY87700L
Amendment: /0
SY87700L

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SY87700LZI Summary of contents

Page 1

Micrel, Inc. FEATURES Industrial temperature range (–40 3.3V power supply SONET/SDH/ATM compatible Clock and data recovery from 32Mbps up to 175Mbps NRZ data stream, clock generation from 32Mbps to 175Mbps Two on-chip PLLs: one for clock generation and another for ...

Page 2

... RCLKP RCLKN VCCO TCLKP TCLKN 2 (1) Package Range Marking Industrial SY87700LZI Industrial SY87700LZI Industrial SY87700LHI Industrial SY87700LHI Industrial SY87700LZG with Pb-Free bar line indicator Pb-Free Industrial SY87700LZG with Pb-Free bar line indicator Pb-Free Industrial SY87700LHG with Pb-Free bar line indicator Pb-Free ...

Page 3

Micrel, Inc. PIN DESCRIPTIONS Pin Number Pin Number SOIC TQFP Pin Name FREQSEL1 FREQSEL2 FREQSEL3 3 32 DIVSEL1 DIVSEL2 ...

Page 4

Micrel, Inc. FUNCTIONAL DESCRIPTION Clock Recovery Clock Recovery, as shown in the block diagram generates a clock that is at the same frequency as the incoming data bit rate at the Serial Data input. The clock is phase aligned by ...

Page 5

Micrel, Inc. CHARACTERISTICS Performance The SY87700L PLL complies with the jitter specifications proposed for SONET/SDH equipment defined by the Bellcore Specifications: GR-253-CORE, Issue 2, December 1995 and ITU-T Recommendations: G.958 document, when used with differential inputs and outputs. Input Jitter ...

Page 6

Micrel, Inc. FREQUENCY SELECTION TABLE FREQSEL1 FREQSEL2 Notes: 1. SY87700L operates from 32-175MHz. For higher speed applications, the SY87701L operates from 32MHz to 1250MHz ...

Page 7

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) .................................. –0.5V to +4.0V CC Input Voltage (V ) ......................................... –0. Output Current (I ) OUT Continuous ............................................................. 50mA Surge .................................................................... 100mA Lead Temperature (soldering, 20 sec.) ..................... ...

Page 8

Micrel, Inc. AC ELECTRICAL CHARACTERISTICS 3.3V ±5 –40°C to +85°C; unless noted. CC CCO CCA A Symbol Parameter f VCO Center Frequency VCO ∆f VCO Center Frequency Tolerance VCO t Acquisition Lock ...

Page 9

Micrel, Inc. 32-PIN APPLICATION EXAMPLE R13 V CC LED D2 R12 Q1 2N2222A V EE DIODE 1N4148 R10 CLKSEL 4 DIVSEL1 R11 EE 1kΩ GND Ferrite Bead BLM21A102 V CC ...

Page 10

Micrel, Inc. 28-PIN APPLICATION EXAMPLE LED R8 D2 130Ω GND V CC Capacitor Pads (1206 format RDIN See Table 1 GND LOOP FILTER NETWORK 1.5µF REFCLK (TTL) NC 0.1µ 120Ω R21 For ...

Page 11

Micrel, Inc. BILL OF MATERIALS (32-PIN EPAD-TQFP) Item Part Number C1, C2 VJ0603Y105JXJAT C3, C4 VJ0603Y105JXJAT C5 ECS-T1ED226R C6 ECU-V1H104KBW C7, C8, C9, C10 ECS-T1EC685R C19 ECJ-3YB1E105K C11, C13 ECU-V1H104KBW C15, C17 ECU-V1H104KBW C20 ECU-V1H104KBW C12, C14 ECU-V1H103KBW C16, C18 ...

Page 12

Micrel, Inc. 28 LEAD SOIC .300" WIDE (Z28-1) Note: The 28 Lead SOIC package is NOT recommended for new designs. M9999-111406 hbwhelp@micrel.com or (408) 955-1690 12 SY87700L Rev. 02 ...

Page 13

Micrel, Inc. 32 LEAD EPAD TQFP (DIE UP) (H32-1) Heat Dissipation PCB Thermal Consideration for 32-Pin EPAD-TQFP Package M9999-111406 hbwhelp@micrel.com or (408) 955-1690 Package EP- Exposed Pad Die CompSide Island Heat Dissipation V EE Heavy Copper Plane V EE Heavy ...

Page 14

Micrel, Inc. Layout and General Suggestions 1. Establish controlled impedance stripline, microstrip, or co-planar construction techniques. 2. Signal paths should have, approximately, the same width as the device pads. 3. All differential paths are critical timing paths, where skew should ...

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