Microchip SY58019U Bedienungsanleitung
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SY58019U
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1
Precision Edge
®
SY58019U
Micrel, Inc.
M9999-082707
hbwhelp@micrel.com or (408) 955-1690
DESCRIPTION
■ Guaranteed AC performance over temperature and
voltage:
• DC to 10.7Gbps data throughput
• DC to > 7GHz f
MAX
(clock)
•<240ps propagation delay
•<70ps t
r
/t
f
times
■ Ultra-low crosstalk-induced jitter: 0.7ps
RMS
■ Ultra-low jitter design:
•<1ps
RMS
random jitter
•<10ps
PP
deterministic jitter
•<10ps
PP
total jitter (clock)
■ Unique input termination and V
T
pin accepts DC-
coupled and AC-coupled inputs (CML, PECL, LVDS)
■ 400mV (100k) LVPECL output swing
■ Power supply 2.5V ±5% or 3.3V ±10%
■ –40°C to +85°C temperature range
■ Available in 16-pin (3mm
××
××
× 3mm) MLF
®
package
FEATURES
ULTRA-PRECISION
DIFFERENTIAL 400mV LVPECL 2:1
MUX with INTERNAL TERMINATION
Precision Edge
®
SY58019U
APPLICATIONS
■ Redundant clock distribution
■ OC-3 to OC-192 SONET/SDH clock/data distribution
■ Loopback
■ Fibre Channel distribution
Rev.: D Amendment: /0
Issue Date: August 2007
The SY58019U is a 2.5V/3.3V precision, high-speed, 2:1
differential MUX capable of handling clocks up to 7GHz
and data up to 10.7Gbps.
The differential input includes Micrel’s unique, 3-pin input
termination architecture that allows customers to interface
to any differential signal (AC- or DC-coupled) as small as
100mV without any level shifting or termination resistor
networks in the signal path. The outputs are 400mV, 100k
compatible, LVPECL, with extremely fast rise/fall times
guaranteed to be less than 70ps.
The SY58019U operates from a 2.5V ±5% supply or a
3.3V ±10% supply and is guaranteed over the full industrial
temperature range of –40°C to +85°C. For applications that
require CML outputs, consider the SY58017U or for 800mV
LVPECL outputs the SY58018U. The SY58019U is part of
Micrel’s high-speed, Precision Edge
®
product line.
All 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.
AnyGate is a registered trademark of Micrel, Inc.
Micro
LeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
Precision Edge
®
Q0
/Q0
IN0
/IN0
V
T0
50Ω
50Ω
IN1
/IN1
V
T1
50Ω
50Ω
0
1
MUX
SEL
(TTL/CMOS)
S
TIME (20ps/div.)
(2
23
Ð1PRBS)
Output Swing
(100mV/div.)
2
Precision Edge
®
SY58019U
Micrel, Inc.
M9999-082707
hbwhelp@micrel.com or (408) 955-1690
PACKAGE/ORDERING INFORMATION
Pin Number Pin Name Pin Function
1, 2 IN0, /IN0 Differential Input: These input pairs are the differential signal inputs to the device. They
3, 4 IN1, /IN1 accept differential AC- or DC-coupled signals as small as 100mV. Each pin of a pair internally
terminates to a V
T
pin through 50Ω. Note that these inputs will default to an indeterminate
state if left open. Please refer to the
“Input Interface Applications”
section for more details.
16, 5 VT0, VT1 Input Termination Center-Tap: Each side of the differential input pair terminates to a V
T
pin. The V
T0
and V
T1
pins provide a center-tap to a termination network for maximum
interface flexibility. See
“Input Interface Applications”
section for more details.
6 SEL This single-ended TTL/CMOS compatible input selects the inputs to the multiplexer. Note
that this input is internally connected to a 25kΩ pull-up resistor and will default to a logic
HIGH state if left open.
7NCNo connect.
8, 13 VCC Positive Power Supply: Bypass with 0.1µF0.01µF low ESR capacitors. 0.01µF capacitor
should be as close to V
CC
pin as possible.
12, 9 Q, /Q Differential Outputs: This 100k compatible LVPECL output pair is the output of the device.
Terminate through 50Ω to V
CC
– 2V. See
“Output Interface Applications”
section. It is a
logic function of the IN0, IN1, and SEL inputs. Please refer to the
“Truth Table”
for details.
10, 11, 14, 15 GND, Ground. Ground pins and exposed pad must be connected to the same ground plane.
Exposed Pad
PIN DESCRIPTION
13141516
12
11
10
9
1
2
3
4
8765
IN0
/IN0
IN1
/IN1
Q
GND
GND
/Q
VT0
GND
GND
VCC
VT1
SEL
NC
VCC
16-Pin MLF
®
TRUTH TABLE
SEL Output
0 CH0 Input Selected
1 CH1 Input Selected
Ordering Information
(1)
Package Operating Package Lead
Part Number Type Range Marking Finish
SY58019UMI MLF-16 Industrial 019U Sn-Pb
SY58019UMITR
(2)
MLF-16 Industrial 019U Sn-Pb
SY58019UMG
(3)
MLF-16 Industrial 019U with Pb-Free
Pb-Free bar-line indicator NiPdAu
SY58019UMGTR
(2, 3)
MLF-16 Industrial 019U with Pb-Free
Pb-Free bar-line indicator NiPdAu
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
A
= 25°C, DC electricals only.
2. Tape and Reel.
3. Pb-Free package recommended for new designs.
Produktspezifikationen
| Marke: | Microchip |
| Kategorie: | Nicht kategorisiert |
| Modell: | SY58019U |
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