DSC400 Datasheet PDF - Micrel
Part Number | DSC400 | |
Description | Clock Generator | |
Manufacturers | Micrel | |
Logo | ||
There is a preview and DSC400 download ( pdf file ) link at the bottom of this page. Total 15 Pages |
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Configurable Four Output, Low Jitter Crystal-less™ Clock Generator
General Description
The DSC400 is a four output crystal-less™
clock generator. It utilizes Micrel’s proven
PureSilicon™ MEMS technology to provide
excellent jitter and stability while
incorporating additional device functionality.
The frequencies of the outputs can be
identical or independently derived from
common PLLs.
Each output may be configured
independently to support a single ended
LVCMOS interface or a differential interface.
Differential options include LVPECL, LVDS, or
HCSL.
The DSC400 provides two independent select
lines for choosing between two sets of pre-
configured frequencies per bank. It also has
two OE pins to allow for enabling and
disabling outputs.
The DSC400 is packaged in a 20-pin QFN
(5mm x 3.2mm) and is available in extended
commercial and industrial temperature
grades.
Features
Low RMS Phase Jitter: <1 ps (typ)
High Stability: ±25ppm, ±50ppm
Wide Temperature Range
o Ext. commercial: -20°C to 70°C
o Industrial: -40°C to 85°C
High Supply Noise Rejection: -50 dBc
Four format configurable outputs:
o LVPECL, LVDS, HCSL, LVCMOS
Available Pin-Selectable frequency table
o 1 pin per bank for 2 frequency sets
Wide Freq. Range:
o 2.3 MHz – 460 MHz
20 QFN Footprint (5mm x 3.2mm)
Excellent Shock & Vibration Immunity
o Qualified to MIL-STD-883
High Reliability
o 20x better MTF than quartz based devices
Wide Supply Range of 2.25 to 3.6 V
Lead Free & RoHS Compliant
AEC-Q100 Automotive Qualified
Block Diagram
Applications
Communications and Networks
Ethernet
o 1G, 10GBASE-T/KR/LR/SR, and FCoE
Storage Area Networks
o SATA, SAS, Fibre Channel
Passive Optical Networks
o EPON, 10G-EPON, GPON, 10G-PON
HD/SD/SDI Video & Surveillance
Automotive
Media and Video
Embedded and Industrial
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DSC400
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DSC400 Configurable Four Output, Low Jitter Crystal-less™ Clock Generator
Absolute Maximum Ratings
Item
Min Max Unit Condition
Supply Voltage -0.3 +4.0
V
Input Voltage
Junction Temp
-0.3 VDD+0.3
- +150
V
°C
Storage Temp -55 +150
°C
Soldering Temp -
+260
°C 40sec max.
ESD
-
V
HBM
4000
MM 400
CDM
1500
Note: 1000+ years of data retention on internal memory
Specifications (Unless specified otherwise: Ta =25° C, VDD = 3.3V)
Parameter
Supply Voltage1
Supply Current – Core2
Symbol
VDD
IDDcore
Frequency Stability
Aging – first year
Aging – after first year
Startup Time3
Input Logic Levels
Input logic high
Input logic low
Output Disable Time4
Output Enable Time4
Pull-Up Resistor
Δf
ΔfY1
ΔfY2+
tSU
VIH
VIL
tDA
tEN
RPU
Condition
OE(1:2) = 0
All outputs are disabled
All temp and VDD ranges
1 year @25°C
Year 2 and beyond @25°C
T=25°C
OE(1:2) transition from 1 to 0
OE(1:2) transition from 0 to 1
All input pins have an internal pull-
up
Min.
2.25
Typ.
40
Max.
3.6
44
Unit
V
mA
±25
±50
±5
<±1/yr
5
ppm
ppm
ppm
ms
0.75xVDD
-
-
0.25xVDD
5
20
V
ns
ns
40 kΩ
Notes:
1. VDD pins should be filtered with a 0.1µF capacitor connected between VDD and VSS.
2. The addition of IDDcore and IDDio provides total current consumption of the device
3. tsu is time to 100 ppm stable output frequency after VDD is applied and outputs are enabled.
4. Output Waveform figures below the parameters. See Output Waveform section
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DSC400
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for DSC400 electronic component. |
Information | Total 15 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ DSC400.PDF Datasheet ] |
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