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DSC2233 데이터시트 PDF




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부품번호 DSC2233 기능
기능 SPI Programmable Dual LVDS Oscillator
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DSC2233 데이터시트, 핀배열, 회로
DSC2133 DSC2233
Low-Jitter I2C/SPI Programmable Dual LVDS Oscillator
Datasheet
General Description
The DSC2133 and DSC2233 series of
programmable, high-performance dual LVDS
oscillators utilizes a proven silicon MEMS
technology to provide excellent jitter and
stability while incorporating high output
frequency flexibility. DSC2133 and DSC2233
allow the user to independently modify the
frequency of each output using I2C or SPI
interface, respectively. User can also select
from two pre-programmed default output
frequencies using the control pin.
DSC2133 and DSC2233 are packaged in 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: ±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 LVDS Outputs
I2C/SPI Programmable Frequencies
Short Lead Times: 2 Weeks
Wide Frequency Range:
o LVDS Output: 2.3 to 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
Pin #
3
5
6
7
DSC2133 (I2C)
NC
SDA
SCL
CS_bar
DSC2233 (SPI)
SCLK
MOSI
MISO
SS
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
_____________________________________________________________________________________________________________________________ _________________
DSC2133 DSC2233
Page 1
MK-Q-B-P-D-12050109




DSC2233 pdf, 반도체, 판매, 대치품
DSC2133 DSC2233 Low-Jitter I2C/SPI Programmable Dual LVDS Oscillator
Absolute Maximum Ratings
Item
Min Max Unit
Supply Voltage -0.3 +4.0
V
Input Voltage
Junction Temp
-0.3 VDD+0.3
- +150
Storage Temp -55 +150
Soldering Temp -
+260
ESD
-
HBM
4000
MM 400
CDM
1500
Note: 1000+ years of data retention on internal memory
V
°C
°C
°C
V
Condition
40sec max.
Ordering Code
Prog Mode
1: I2C bus
2: SPI bus
Temp Range
E: -20 to 70
I: -40 to 85
Packing
T: Tape & Reel
: Tube
DSC2 1 33 F I 2 - xxxxx
T
Package
F: 3.2x2.5mm
Stability
1: ±50ppm
2: ±25ppm
Freq (MHz)
See Freq. table
Specifications (Unless specified otherwise: T=25° C)
Parameter
Supply Voltage1
Supply Current
Supply Current2
Frequency Stability
Aging
Startup Time3
Input Logic Levels
Input logic high
Input logic low
Output Disable Time4
Output Enable Time
Pull-Up Resistor2
Condition
VDD
IDD EN pin low outputs are disabled
IDD
EN pin high outputs are enabled
RL=100Ω, FO1=FO2 =156.25 MHz
Includes frequency variations due
Δf to initial tolerance, temp. and
power supply voltage
Δf 1 year @25°C
tSU T=25°C
VIH
VIL
tDA
tEN
Pull-up exists on all digital IO
LVDS Outputs
Output Offset Voltage
R=100Ω Differential
Delta Offset Voltage
Pk to Pk Output Swing
Single-Ended
Output Transition time4
Rise Time
Fall Time
tR
tF
20% to 80%
RL=50Ω, CL= 2pF
Frequency
f0 Single Frequency
Output Duty Cycle
SYM
Differential
Period Jitter5
JPER
FO1=FO2=156.25 MHz
Integrated Phase Noise
200kHz to 20MHz @148.5MHz
JCC 100kHz to 20MHz @148.5MHz
12kHz to 20MHz @148.5MHz
Notes:
1.
2.
3.
4.
5.
Pin 4 VDD should be filtered with 0.01uf capacitor.
Output is enabled if Enable pad is floated or not connected.
tsu is time to 100PPM stable output frequency after VDD is applied and outputs are enabled.
Output Waveform and Test Circuit figures below define the parameters.
Period Jitter includes crosstalk from adjacent output.
Min.
2.25
0.75xVDD
-
1.125
2.3
48
Typ.
21
38
40
350
200
2.5
0.28
0.4
1.7
Max.
3.6
23
Unit
V
mA
mA
±25
±50
±5
5
ppm
ppm
ms
-
0.25xVDD
5
20
V
ns
ns
kΩ
1.4
50
460
52
2
V
mV
mV
ps
MHz
%
psRMS
psRMS
_____________________________________________________________________________________________________________________________ _________________
DSC2133 DSC2233
Page 4
MK-Q-B-P-D-12050109

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DSC2233

SPI Programmable Dual LVDS Oscillator

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