Low-Jitter Precision LVDS Oscillator for Automotive
Features
• Automotive AEC-Q100 Qualified
• Wide Frequency Range: 2.3 MHz to 460 MHz
(LVDS)
• Low RMS Phase Jitter: <1 ps (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
• High Supply Noise Rejection: –50 dBc
• Small Industry Standard Footprints
- 2.5 mm x 2.0 mm (VDFN)
- 3.2 mm x 2.5 mm (VDFN & Wettable Flank)
- 5.0 mm x 3.2 mm (CDFN)
• Excellent Shock and Vibration Immunity
- Qualified to MIL-STD-883
• High Reliability
- 20x Better MTBF than Quartz Oscillators
• Low Current Consumption
• Supply Range of 2.25 to 3.63V
• Standby and Output Enable Function
• Lead-Free and RoHS Compliant
General Description
The DSA1103 and DSA1123 series of high
performance oscillators utilize a proven silicon MEMS
technology to provide 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
automotive applications like in-vehicle networking and
autonomous driving.
DSA1103 has a standby feature that allows it to
completely power-down when pin 1 is pulled low. For
DSA1123, only the outputs are disabled when pin 1 is
low. Both oscillators are available in industry standard
packages, including the small 2.5 mm x 2.0 mm, and
are drop-in replacements for standard 6-pin LVDS
crystal oscillators.
Functional Block Diagram
Pin 1
OE/STDBY/FS
DIGITAL
CONTROL
SUPPLY
REGULATION
Pin 6
VDD
Applications
•
•
•
•
Automotive Infotainment
Automotive ADAS
In-Vehicle Networking
Autonomous Driving
Pin 2
NC
MEMS
RESONATOR
TEMP SENSOR +
CONTROL &
COMPENSATION
PLL
OUTPUT
DIV
Pin 3
GND
Pin 5
CLK–
Pin 4
CLK+
2019 Microchip Technology Inc.
DS20005891A-page 1
DSA1103/23
1.0
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Input Voltage, V
IN
.............................................................................................................................. –0.3V to V
DD
+0.3V
Supply Voltage ......................................................................................................................................... –0.3V to + 4.0V
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Microcontroller MCU
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