DSA1101/21/05/25
Low-Jitter Precision CMOS Oscillator for Automotive
General Description
Features
• Automotive AEC-Q100 Qualified
• Two Rise/Fall Time Options for EMI Reduction
• Low RMS Phase Jitter: <1 ps (typ.)
• High Stability: ±20 ppm, ±25 ppm, ±50 ppm
• Wide Temperature Range:
The DSA1101 and DSA1121 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
communications, storage, and networking applications.
- 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
• Wide Freq. Range: 2.3 MHz to 170 MHz
• Small Industry Standard Footprints
- 2.5 mm x 2.0 mm
DSA1101 has a standby feature that allows it to
completely power-down when EN pin is pulled low. For
DSA1121, only the outputs are disabled when EN 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 4-pin and 6-pin
CMOS quartz crystal oscillators.
- 3.2 mm x 2.5 mm
- 5.0 mm x 3.2 mm
• Excellent Shock and Vibration Immunity
- Qualified to MIL-STD-883
The DSA1105/25 is functionally equivalent to the
DSA1101/21, but it has lower drive strength for EMI
reduction.
• High Reliability
- 20x Better MTF than Quartz Oscillators
• Low Current Consumption
Functional Block Diagram
• Supply Range of 2.25 to 3.63V
• Standby and Output Enable Function
• Lead-Free and RoHS Compliant
Applications
• Automotive Infotainment
• Automotive ADAS
• Automotive Camera Module
• Automotive LIDAR and RADAR
Benefits
• Replace High Temperature Crystals and Quartz
Oscillators
2018 Microchip Technology Inc.
DS20005890B-page 1