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PDF DSC2031 Data sheet ( Hoja de datos )
| Número de pieza | DSC2031 | |
| Descripción | Low-Jitter Configurable Dual LVDS-CMOS Oscillator | |
| Fabricantes | Micrel | |
| Logotipo |  |
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DSC2031
Low-Jitter Configurable Dual LVDS-CMOS Oscillator
General Description
The DSC2031 series of high performance
dual output oscillators utilize a proven silicon
MEMS technology to provide excellent jitter
and stability while incorporating additional
device functionality. The two outputs are
controlled by separate supply voltages to
allow for independent voltage level control.
The frequencies of the outputs can be
identical or independently derived from a
common PLL frequency source.
The
DSC2031 has provision for up to eight user-
defined pre-programmed, pin-selectable
output frequency combinations.
The
DSC2031 is also equipped with independent
pin-selectable output drive strengths for the
CMOS output to reduce EMI and noise.
DSC2031 is packaged in a 14-pin 3.2x2.5
mm QFN package and available in
temperature grades from Ext. Commercial to
Industrial.
Block Diagram
Features
Low RMS Phase Jitter: <1 ps (typ)
High Stability: ±10, ±25, ±50 ppm
Wide Temperature Range
o Industrial: -40° to 85° C
o Ext. commercial: -20° to 70° C
High Supply Noise Rejection: -50 dBc
Two Independent Outputs
o LVDS and CMOS
Pin-Selectable Configurations
o 3-bit Output Drive Strength (CMOS)
o 3-bit Output Frequency Combinations
Short Lead Times: 2 Weeks
Wide Frequency Range
o LVDS Output: 2.3 to 460 MHz
o CMOS Output: 2.3 to 170 MHz
Miniature Footprint of 3.2x2.5mm
Excellent Shock & Vibration Immunity
o Qualified to MIL-STD-883
High Reliability
o 20x better MTF than quartz oscillators
Supply Range of 2.25 to 3.6 V
Lead Free & RoHS Compliant
Applications
Storage Area Networks
o SATA, SAS, Fibre Channel
Passive Optical Networks
o EPON, 10G-EPON, GPON, 10G-PON
Ethernet
o 1G, 10GBASE-T/KR/LR/SR, and FCoE
HD/SD/SDI Video & Surveillance
PCI Express
_____________________________________________________________________________________________________________________________ _________________
DSC2031
Page 1
MK-Q-B-P-D-12042607-2
1 page  
DSC2031
Low-Jitter Configurable Dual LVDS-CMOS Oscillator
Nominal Performance Parameters (Unless specified otherwise: T=25° C, VDD=3.3 V)
2.5 2.5
156MHz-LVDS
25MHz-CMOS
2.0
212MHz-LVDS
2.0
50MHz-CMOS
320MHz-LVDS
106MHz-CMOS
1.5
410MHz-LVDS
1.5
125MHz-CMOS
1.0 1.0
0.5 0.5
0.0
0
200 400 600 800 1000
Low-end of integration BW: x kHz to 20 MHz
LVDS Phase jitter (integrated phase noise)
0.0
0
200 400 600 800 1000
Low-end of integration BW: x kHz to 20 MHz
CMOS Phase jitter (integrated phase noise)
Output Waveform: LVDS
tR tF
Output
Output
80%
50%
20%
1/f o
Enable
VIL
Output Waveform: CMOS
tR tF
Output
VOH
VOL
1/fo
Enable
VIL
tEN
tDA
VIH
tEN
tDA
VIH
385300 mmvV
_____________________________________________________________________________________________________________________________ _________________
DSC2031
Page 5
MK-Q-B-P-D-12042607-2
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet DSC2031.PDF ] | |
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