|
|
PDF SY89231U Data sheet ( Hoja de datos )
| Número de pieza | SY89231U | |
| Descripción | Clock Divider | |
| Fabricantes | Micrel | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SY89231U (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
|
No Preview Available !
SY89231U
3.2GHz Precision, LVDS ÷3, ÷5 Clock Divider
General Description
The SY89231U is a precision, low jitter 3.2GHz ÷3,
÷5 clock divider with a LVDS output. The differential
input includes Micrel’s unique, 3-pin internal
termination architecture that allows the input to
interface to any differential signal (AC- or DC-
coupled) as small as 100mV (200mVPP) without any
level shifting or termination resistor networks in the
signal path. The outputs are 325mV, 100K-
compatible LVDS with fast rise/fall times guaranteed
to be less than 200ps.
The SY89231U operates from a 2.5V ±5% supply
and is guaranteed over the full industrial
temperature range of –40°C to +85°C. The
SY89231U 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.
Block Diagram
Features
Precision Edge®
• Accepts a high-speed input and provides a precision
÷3 and ÷5 sub-rate, LVDS output
• Guaranteed AC performance over temperature and
supply voltage:
– DC-to >3.2GHz throughput
– <810ps Propagation Delay (In-to-Q)
– <200ps Rise/Fall times
• Ultra-low jitter design:
– <1psRMS random jitter
– <1psRMS cycle-to-cycle jitter
– <10psPP total jitter (clock)
– <0.7psRMS MUX crosstalk induced jitter
• Unique patented internal termination and VT pin
accepts DC- and AC-coupled inputs (CML, PECL,
LVDS)
• Wide input voltage range VCC to GND
• 325mV LVDS output
• 45% to 55% Duty Cycle (÷ 3)
• 47% to 53% Duty Cycle (÷ 5)
• 2.5V ±5% supply voltage
• -40°C to +85°C industrial temperature range
• Available in 16-pin (3mm x 3mm) QFN package
Applications
• Fail-safe clock protection
Markets
• LAN/WAN
• Enterprise servers
• ATE
• Test and measurement
Precision Edge is a registered trademark of Micrel, Inc.
.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
November 2007
M9999-110507-A
[email protected] or (408) 955-1690
Free Datasheet http://www.datasheet4u.com/
1 page  
Micrel, Inc.
SY89231U
LVDS Outputs DC Electrical Characteristics(7)
VCC = +2.5V ±5%, RL = 100Ω across the outputs; TA = –40°C to +85°C, unless otherwise stated.
Symbol Parameter
Condition
Min Typ Max
VOUT
VDIFF_OUT
VOCM
∆VOCM
Output Voltage Swing (Q, /Q)
Differential Output Voltage Swing |Q – /Q|
Output Common Mode Voltage (Q, /Q)
Change in Common Mode Voltage (Q, /Q)
See Figure 2a
See Figure 2b
See Figure 5a
See Figure 5b
250
500
1.125
–50
325
650
1.20 1.275
+50
Units
mV
mV
V
mV
LVTTL/CMOS DC Electrical Characteristics(7)
VCC = 2.5V ±5%; TA = –40°C to + 85°C, unless otherwise stated.
Symbol Parameter
Condition
Min Typ Max
VIH Input HIGH Voltage
2.0
VIL Input LOW Voltage
0.8
IIH Input HIGH Current
-125
30
IIL Input LOW Current
-300
Note:
7. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
Units
V
V
µA
µA
November 2007
5 M9999-110507-A
[email protected] or (408) 955-1690
Free Datasheet http://www.datasheet4u.com/
5 Page 
Micrel, Inc.
SY89231U
Functional Characteristics
VCC = 2.5V, GND = 0V, VIN = 350mV, Q = Divide by 3, tr/tf ≤ 300ps, RL = 100Ω across the outputs; TA = 25°C, unless otherwise
stated.
November 2007
11 M9999-110507-A
[email protected] or (408) 955-1690
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet SY89231U.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SY89231U | Clock Divider | Micrel |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |