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SY89547L
Microchip SY89547L Handleiding
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Precision Edge
®
SY89547L
Micrel, Inc.
M9999-091809
hbwhelp@micrel.com or (408) 955-1690
DESCRIPTION
■ Selects among four differential inputs
■ Provides two copies of the selected input
■ Guaranteed AC performance over temp and voltage:
• DC-to > 3.2Gbps data rate throughput
• < 620ps In-to-Out t
pd
• < 150ps t
r
/t
f
■ Unique input isolation design minimizes crosstalk
■ Ultra-low jitter design:
• < 1ps
RMS
random jitter
• < 10ps
PP
deterministic jitter
• < 10ps
PP
total jitter (clock)
• < 0.7ps
RMS
crosstalk-induced jitter
■ Internal input termination
■ Unique input termination and V
T
pin accepts DC-
coupled and AC-coupled inputs (LVDS, LVPECL,
CML)
■ 350mV LVDS output swing
■ Power supply 3.3V ±10%
■ –40°C to +85°C temperature range
■ Available in 32-pin (5mm x 5mm) MLF
®
package
FEATURES
3.3V, 3.2Gbps DIFFERENTIAL 4:1 LVDS
MULTIPLEXER with 1:2 FANOUT and
INTERNAL TERMINATION
Precision Edge
®
SY89547L
APPLICATIONS
■ SONET/SDH multi-channel select applications
■ Fibre Channel applications
■ GigE applications
Rev.: D Amendment: /0
Issue Date:
September 2009
The SY89547L is a precision, high-speed 4:1 differential
multiplexer that provides two copies of the selected input.
The high speed LVDS (350mV) compatible outputs with a
guaranteed throughput of up to 3.2Gbps over temperature
and voltage.
The SY89547L differential inputs include Micrel’s unique,
3-pin internal termination design that allows access to the
termination network through a V
T
pin. This feature allows
the device to easily interface to different logic standards,
both AC- and DC-coupled without external resistor-bias and
termination networks. The result is a clean, stub-free, low
jitter interface solution.
The SY89547L operates from a single 3.3V supply, and
is guaranteed over the full industrial temperature range
(–40°C to +85°C). For applications that require a 2.5V supply,
consider the SY89546U. For applications that only require
one differential output, consider the SY89544U or SY89545L.
The SY89547L is part of a Micrel’s Precision Edge
®
product
family. All support documentation can be found on Micrel’s
web site at: www.micrel.com.
TYPICAL PERFORMANCE
FUNCTIONAL BLOCK DIAGRAM
Precision Edge
®
IN0
/IN0
V
T0
50Ω
50Ω
IN1
/IN1
V
T1
50Ω
50Ω
Q0
/Q0
0
1
MUX
4:1 MUX
1:2 Fanout
LVDS
IN2
/IN2
V
T2
50Ω
50Ω
2
IN3
/IN3
V
T3
50Ω
50Ω
3
S0
S1
SEL0 (CMOS/TTL)
SEL1 (CMOS/TTL)
Q1
/Q1
Precision Edge is a registered trademark of Micrel, Inc.
Micro
LeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
0
50
100
150
200
250
300
350
400
0 1000 2000 3000 4000 5000 6000
OUTPUT AMPLITUDE (mV)
FREQUENCY (MHz)
Output Amplitude
vs. Frequency
Probleemoplossing Microchip SY89547L
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Specificaties
| Merk: | Microchip |
| Categorie: | Niet gecategoriseerd |
| Model: | SY89547L |