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Maxim >
Products >
Timekeeping, Timers, and Counters
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Highly Accurate TCXO Integrates Tuning and Control DAC
12.8MHz to 51.84MHz TCXO Provides Better than 2ppb Tuning Resolution
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The DS4026 is an extremely accurate TCXO for wireless applications, SONET/SDH systems, instrumentation, and test systems. It is guaranteed accurate and stable to better than ±1ppm over the -40°C to +85°C industrial temperature range and better than ±4.6ppm under all conditions. With an integrated 16-bit control DAC, frequency trimming is accomplished through an I²C interface with resolutions better than 1ppb (typical). The device operates from a 3.3V ±5% supply voltage and is packaged in a standard 300-mil, 16-pin SO.
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Key Features
- ±1ppm Frequency Accuracy Over -40°C to +85°C
- Standard Frequencies: 12.8, 19.44, 20.0, 38.88, 40.0, 51.84MHz
- Maximum ±4.6ppm Deviation Over 10 Years
- Minimum ±8ppm Digital Frequency Tuning Through an I²C Interface
- Pb Free, RoHS Compliant
Customer Benefits
- On-Chip Temperature Sensor Lookup Table
- Automatically Compensates for Frequency Changes Due to Temperature, No Calibration Required
- Surface-Mount, 16-Pin SO Package
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Applications
- Reference Clock Generation
- Telecom/Datacom/SATCOM
- Test and Measurement
- Wireless
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| Ordering Information |
| Part |
Temp Range
(°C) |
Output (fNOM)
(MHz, CMOS) |
Package |
Top Mark |
| DS4026+BCN |
-40 to +85 |
12.8 |
16-SO |
DS4026-BCN |
| DS4026+HCN |
-40 to +85 |
19.44 |
16-SO |
DS4026-HCN |
| DS4026+JCN |
-40 to +85 |
20.0 |
16-SO |
DS4026-JCN |
| DS4026S+MCN |
-40 to +85 |
38.88 |
16-SO |
DS4026-MCN |
| DS4026S+PCN |
-40 to +85 |
40.0 |
16-SO |
DS4026-PCN |
| DS4026S+QCN |
-40 to +85 |
51.84 |
16-SO |
DS4026-QCN |
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