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PDF DSC2042 Data sheet ( Hoja de datos )
| Número de pieza | DSC2042 | |
| Descripción | Low-Jitter Configurable HCSL-LVPECL Oscillator | |
| Fabricantes | Micrel | |
| Logotipo |  |
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DSC2042
Low-Jitter Configurable HCSL-LVPECL Oscillator
General Description
The DSC2042 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 high output isolation. The
frequencies of the outputs can be identical or
independently derived from a common PLL
frequency source. The DSC2042 has
provision for up to eight user-defined pre-
programmed, pin selectable output frequency
combinations.
DSC2042 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 HCSL & LVPECL
Pin-Selectable Configurations
o 3-bit Output Frequency Combinations
Short Lead Times: 2 Weeks
Wide Freq. Range:
o HCSL Output: 2.3 – 460 MHz
o LVPECL Output: 2.3 – 460 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
_____________________________________________________________________________________________________________________________ _________________
DSC2042
Page 1
MK-Q-B-P-D-12042612-2
1 page  
DSC2042
Low-Jitter Configurable HCSL-LVPECL Oscillator
Output Waveform: HCSL
Output
Output
80%
50%
20%
tR
tF
1/f o
Enable
VIL
tEN
tDA
VIH
683705 mmvV
Output Waveform: LVPECL
tR tF
Output
Output
80%
50%
20%
1/f o
Enable
VIL
tEN
tDA
VIH
830 mv
Solder Reflow Profile
260°C
20-40
Sec
217°C
200°C
150°C
25°C
60-180
Sec
Pre heat
8 min max
60-150
Sec
Reflow
Cool
Time
MSL 1 @ 260°C refer to JSTD-020C
Ramp-Up Rate (200°C to Peak Temp) 3°C/Sec Max.
Preheat Time 150°C to 200°C
60-180 Sec
Time maintained above 217°C
60-150 Sec
Peak Temperature
255-260°C
Time within 5°C of actual Peak
20-40 Sec
Ramp-Down Rate
6°C/Sec Max.
Time 25°C to Peak Temperature
8 min Max.
_____________________________________________________________________________________________________________________________ _________________
DSC2042
Page 5
MK-Q-B-P-D-12042612-2
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet DSC2042.PDF ] | |
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