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SY58011UMG 数据手册 - Micrel(迈瑞)
制造商:
Micrel(迈瑞)
分类:
时钟缓冲器、驱动器、锁相环
封装:
QFN-16
描述:
MICREL SEMICONDUCTOR SY58011UMG 芯片, 缓冲器/转换器, 7GHZ, 1:2, 16MLF
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SY58011UMG数据手册
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1
SY58011U
Micrel, Inc.
M9999-110311
hbwhelp@micrel.com or (408) 955-1690
1
DESCRIPTION
- Precision 1:2, 400mV CML fanout buffer
- Low jitter performance:
• 49fs
RMS
phase jitter (typ)
- Guaranteed AC performance over temperature/
voltage:
• > 7GHz f
MAX
clock
• < 60ps t
r
/t
f
times
• < 250ps t
pd
• < 15ps max. skew
- Accepts an input signal as low as 100mV
- Unique input termination and V
T
pin accepts DC-
coupled and AC-coupled differential
inputs: LVPECL, LVDS, and CML
- 50ohms source terminated CML outputs
- Power supply 2.5V ±5% and 3.3V ±10%
- Industrial temperature range: –40°C to +85°C
- Available in 16-pin (3mm
∗∗
∗∗
∗ 3mm) QFN package
FEATURES
7GHz, 1:2 CML FANOUT
BUFFER/TRANSLATOR WITH
INTERNAL I/O TERMINATION
Precision Edge
®
SY58011U
APPLICATIONS
- All SONET and GigE clock distribution
- Fibre Channel clock and data distribution
- Backplanes
- Data distribution: OC-48, OC-48+FEC, XAUI
- High-end, low skew, multiprocessor synchronous
clock distribution
Rev.: G Amendment: /0
Issue Date: November 2011
The SY58011U is a 2.5V/3.3V precision, high-speed, fully
differential 1:2 CML fanout buffer. Optimized to provide two
identical output copies with less than 15ps of skew and only
49fs
RMS
phase jitter, the SY58011U can process clock
signals as fast as 7GHz or data patterns up to 10.7Gbps.
The differential input includes Micrel’s unique, 3-pin input
termination architecture that interfaces to LVPECL, LVDS,
or CML differential signals, (AC-coupled or DC-coupled) as
small as 100mV without any level-shifting or termination
resistor networks in the signal path. For AC-coupled input
interface applications, an on-board output reference voltage
(V
REF
-AC) is provided to bias the V
T
pin. The outputs are
compatible with 400mV typical swing into 50ohms loads,
with extremely fast rise/fall times guaranteed to be less than
60ps.
The SY58011U operates from a 2.5V ±5% supply or 3.3V
±10% supply and is guaranteed over the full industrial
temperature range (–40°C to +85°C). For applications that
require LVPECL outputs, consider the SY58012U or
SY58013U 1:2 fanout buffer with 800mV and 400mV output
swing, respectively. The SY58011U is part of Micrel’s high-
speed, Precision Edge
®
product line. Datasheets and
support documentation can be found on Micrel’s web site at
www.micrel.com.
FUNCTIONAL BLOCK DIAGRAM
TYPICAL PERFORMANCE
Precision Edge is a registered trademark of Micrel, Inc.
IN
/IN
Q1
/Q1
Q0
/Q0
V
T
50Ω
50Ω
V
REF
-AC
2GHz Output
TIME (70ps/div.)
Output Swing
(100mV/div.)
V
CC
= 2.5V
2GHz with 100mV Input
Precision Edge
®
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