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PDF DSC2044 Data sheet ( Hoja de datos )
| Número de pieza | DSC2044 | |
| Descripción | Low-Jitter Configurable Dual HCSL Oscillator | |
| Fabricantes | Micrel Semiconductor | |
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DSC2044
Low-Jitter Configurable Dual HCSL Oscillator
General Description
The DSC2044 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 DSC2044 has
provision for up to eight user-defined pre-
programmed,
pin-selectable
output
frequency combinations.
DSC2044 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 HCSL Outputs
Pin-Selectable Configurations
o 3-bit Output Frequency Combinations
Short Lead Times: 2 Weeks
Wide Freq. Range:
o HCSL 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
_____________________________________________________________________________________________________________________________ _________________
DSC2044
Page 1
MK-Q-B-P-D-12042614-2
1 page  
DSC2044
Low-Jitter Configurable Dual HCSL Oscillator
Nominal Performance Parameters (Unless specified otherwise: T=25° C, VDD=3.3 V)
2.5
50MHz-HCSL
2.0 106MHz-HCSL
156MHz-HCSL
1.5 212MHz-HCSL
1.0
0.5
0.0
0
200 400 600 800 1000
Low-end of integration BW: x kHz to 20 MHz
HCSL Phase jitter (integrated phase noise)
Output Waveform: HCSL
tR tF
Output
Output
80%
50%
20%
1/f o
Enable
VIL
tEN
tDA
VIH
836075mvmV
_____________________________________________________________________________________________________________________________ _________________
DSC2044
Page 5
MK-Q-B-P-D-12042614-2
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet DSC2044.PDF ] | |
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