OC21A
Part NumberOC21A
ManufacturerJKOE
Description8–100 MHz OCXO featuring high frequency stability, low phase noise, and low aging performance
Supply Status● Available for RFQ
Datasheet
PackageTO-8, 8-DIP Compatible
RoHSCompliant
Stock Status● Contact for availability
REQUEST QUOTEKey Specifications
Manufacturer Part NumberOC21A
ManufacturerJKOE
Oscillator TypeOCXO
Output Frequency Range8–100 MHz
Frequency ModeFundamental
Multiplication Factor1×
Initial Frequency Tolerance±0.1 ppm @ +25°C
Output TypeHCMOS (TTL)
Output Load≥10 kΩ / ≤15 pF @ 10 MHz; ≤5 pF @ 100 MHz
Supply Voltage3.3 V ±5% / 5 V ±5%
Power Consumption230 mW Typ. (Steady State); 1.2 W Max. (Warm-up)
Warm-up Time60 s (Δf/f = 1×10⁻⁷); 120 s (Δf/f = 1×10⁻⁸)
Tuning Range±0.3 ppm Min.; ±1.0 ppm Typ.
Control Voltage Range0–4.2 V @ 5 V Supply; 0–2.8 V @ 3.3 V Supply
Reference Voltage4.2 V @ 5 V Supply; 2.8 V @ 3.3 V Supply
Temperature StabilityDown to ±10 ppb (Ordering Code Dependent)
Supply Voltage Stability±2 ppb Typ.
AgingDown to ±0.1 ppb/day; ±0.015 ppm/year (Ordering Code Dependent)
SSB Phase NoiseSee Phase Noise Table
Allan Deviation5–30 ×10⁻¹² @ 1 s (10 MHz)
G-Sensitivity±0.2 to ±1.0 ppb/G
Retrace±10 ppb @ 10 MHz
Operating TemperatureConfigurable (0°C to +50°C / -40°C to +85°C available)
Storage Temperature-60°C to +85°C
Package TypeTO-8, 8-DIP Compatible
Package DimensionsØ12.7 mm Can; Ø15.3 mm Max. Base; Height up to 10.5 mm
Mounting TypeThrough-Hole
Pin ConfigurationPin 1: Electrical Tuning / Pin 2: Reference Voltage / Pin 4: GND / Pin 5: RF Output / Pin 8: +V Supply
RoHS ComplianceCompliant
Humidity / Sealing95% RH, Non-condensing
PackageTO-8, 8-DIP Compatible
SSB Phase Noise
| Carrier Frequency | Offset Frequency | SSB Phase Noise (dBc/Hz) |
|---|---|---|
| 10 MHz | 1 Hz | -100 to -85 |
| 10 MHz | 10 Hz | -130 to -115 |
| 10 MHz | 100 Hz | -148 to -143 |
| 10 MHz | 1 kHz | -155 to -150 |
| 10 MHz | 10 kHz | -163 to -160 |
| 10 MHz | 100 kHz | -165 to -160 |
Phase Noise Conditions
| Field | Value | Field | Value |
|---|---|---|---|
| Frequency Mode | Fundamental | Multiplication Factor | 1× |
| Supply Voltage | 5 V | Test Conditions | 10 MHz Output |
Product Overview
OC21A is a compact high-performance OCXO designed for precision frequency reference applications. Covering an output frequency range of 8 MHz to 100 MHz, it provides excellent frequency stability, low phase noise, and low aging performance. The device supports HCMOS output, 3.3 V / 5 V supply options, and TO-8 package configuration, making it suitable for telecommunications, instrumentation, navigation, and high-precision timing systems.
Request Quote / RFQ