The DSC12x1 family of high performance oscillators
utilizes the latest generation of silicon MEMS
technology that improves phase noise and provides
excellent jitter and stability over a wide range of supply
voltages and temperatures. By eliminating the need for
quartz or SAW technology, MEMS oscillators
significantly enhance reliability and accelerate product
development,
while
meeting
stringent
clock
performance criteria for a variety of communications,
storage, and networking applications.
The DSC12x1 family features a control function on
pin 1 or pin 2 that permits either a standby feature
(complete power down when STDBY is low), output
enable (output is tri-stated with OE low), or a frequency
select (choice of two frequencies selected by FS
high/low). See the
Product Identification System
section for detailed information.
All oscillators are available in industry-standard
packages, including the small 2.5 mm x 2.0 mm, and
are “drop-in” replacements for standard 4-pin and 6-pin
CMOS quartz crystal oscillators.
Package Types
DSC1201/1211/1221
6-Lead CDFN/VDFN
Applications
•
•
•
•
•
Storage Area Networks
Passive Optical Networks
10/100G Ethernet
HD/SD/SDI Video and Surveillance
Display Port
OE/STDBY/FS
NC
GND
1
6
VDD
NC
CLK
2
5
3
4
DSC1231/1241/1251
6-Lead CDFN/VDFN
NC
OE/STDBY/FS
GND
1
6
VDD
NC
CLK
2
5
3
4
2019 Microchip Technology Inc.
DS20006010A-page 1
DSC12X1
Functional Block Diagrams
DSC1201/1211/1221
Pin 1
OE/STDBY/FS
DIGITAL
CONTROL
SUPPLY
REGULATION
Pin 6
VDD
Pin 2
NC
MEMS
RESONATOR
TEMP SENSOR +
CONTROL &
COMPENSATION
Pin 5
NC
PLL
OUTPUT
DIV
Pin 3
GND
Pin 4
CLK
DSC1231/1241/1251
Pin 1
NC
DIGITAL
CONTROL
SUPPLY
REGULATION
Pin 6
VDD
Pin 2
OE/STDBY/FS
MEMS
RESONATOR
TEMP SENSOR +
CONTROL &
COMPENSATION
Pin 5
NC
PLL
OUTPUT
DIV
Pin 3
GND
Pin 4
CLK+
DS20006010A-page 2
2019 Microchip Technology Inc.
DSC12X1
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Supply Voltage .......................................................................................................................................... –0.3V to +4.0V
Input Voltage .....................................................................................................................................–0.3V to V
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