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參數(shù)資料
| 型號： | SY87701VZHTR |
| 廠商： | MICREL INC |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | 5V/3.3V 32-1250Mbps AnyRate CLOCK AND DATA RECOVERY |
| 中文描述： | CLOCK RECOVERY CIRCUIT, PDSO28 |
| 封裝： | 0.300 INCH, LEAD FREE, SOIC-28 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 161K |
| 代理商： | SY87701VZHTR |
SY87701V
1
Micrel, Inc.
M9999-111406
hbwhelp@micrel.com or (408) 955-1690
DESCRIPTION
FEATURES
■
3.3V and 5V power supply options
■
Clock and data recovery from 32Mbps up to
1.25Gbps NRZ data stream, clock generation from
32Mbps to 1.25Gbps
■
Complies with Bellcore, ITU/CCITT and ANSI
specifications for applications such as OC-1, OC-3,
OC-12, ATM, FDDI, Fibre Channel and Gigabit
Ethernet, as well as proprietary applications
■
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
■
Available in 32-pin EPAD-TQFP and 28-pin SOIC
packages (28-pin SOIC is available, but not
recommended for new designs)
The SY87701V is a complete Clock Recovery and Data
Retiming integrated circuit for data rates from 32Mbps
up to 1.25Gbps NRZ. The device is ideally suited for
SONET/SDH/ATM and Fibre Channel applications and
other high-speed data transmission systems.
Clock recovery and data retiming is performed by
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.
The SY87701V also includes a link fault detection
circuit.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
APPLICATIONS
■
SONET/SDH/ATM OC-1, OC-3, OC-12, OC-24
■
Fibre Channel, Escon, SMPTE 259
■
Gigabit Ethernet/Fast Ethernet
■
Proprietary architecture up to 1.25Gbps
PHASE
DETECTOR
PHASE/
DETECTOR
CHARGE
PUMP
VCO
CHARGE
PUMP
VCO
LINK
DFAULT
DIVIDER
BY 8, 10, 16, 20
REFCLK
(TTL)
CD
RDINN
RDINP
(PECL)
PLLR P/N
CLKSEL
(TTL)
RDOUTP
(PECL)
RCLKP
(PECL)
RCLKN
RDOUTN
LFIN
(TTL)
FREQSEL 1/2/3
(TTL)
PLLS P/N
DIVSEL 1/2
(TTL)
SY87701V
TCLKP
(PECL)
TCLKN
V
CC
V
CCA
V
CCO
GND
1
0
(PECL)
0
1
PHASE/
DETECTOR
BLOCK DIAGRAM
Rev.: M
Issue Date:
Amendment: /0
November 2006
AnyRate is a registered trademark of Micrel, Inc.
AnyRate
SY87701V
5V/3.3V 32-1250Mbps AnyRate
CLOCK AND DATA RECOVERY
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