High Performance CMOS MEMS Oscillator for Automotive
Features
•
•
•
•
•
Automotive AEC-Q100 Qualified
Wide Frequency Range: 2.5 MHz to 170 MHz
Very Low RMS Phase Jitter: <650 fs (typ.)
High Stability: ±20 ppm, ±25 ppm, ±50 ppm
Wide Temperature Range:
- Automotive Grade 1: –40°C to +125°C
- Automotive Grade 2: –40°C to +105°C
- Automotive Grade 3: –40°C to +85°C
Small Industry-Standard Footprints
- 2.5 mm x 2.0 mm
- 3.2 mm x 2.5 mm
- 5.0 mm x 3.2 mm
- 7.0 mm x 5.0 mm
Excellent Shock and Vibration Immunity
- Qualified to MIL-STD-883
High Reliability
- 20x Better MTF than Quartz Oscillators
Supply Range of 2.25V to 3.63V
Standby, Frequency Select, and Output Enable
Functions
Lead-Free and RoHS-Compliant
General Description
The DSA12x1 family of high performance oscillators
utilizes the latest generation of silicon MEMS
technology that reduces close-in 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 automotive applications.
The DSA12x1 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
DSA1201/1211/1221
6-Lead CDFN/VDFN
OE/STDBY/FS
NC
GND
1
6
Applications
• Automotive Infotainment
• Automotive ADAS
• In-Vehicle Networking, CAN Bus, Ethernet
VDD
NC
CLK
2
5
3
4
DSA1231/1241/1251
6-Lead CDFN/VDFN
NC
OE/STDBY/FS
GND
1
6
VDD
NC
CLK
2
5
3
4
2020 Microchip Technology Inc.
DS20006385A-page 1
DSA12X1
Functional Block Diagrams
DSA1201/1211/1221
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
DSA1231/1241/1251
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
DS20006385A-page 2
2020 Microchip Technology Inc.
DSA12X1
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Supply Voltage .......................................................................................................................................... –0.3V to +4.0V
Input Voltage .................................................................................................................................... –0.3V to V
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