Overview
The MC12026A, produced by onsemi, is a high-frequency, low-voltage dual modulus prescaler designed for use in phase-locked loop (PLL) applications. This component is particularly useful in CMOS synthesizers that require positive edges to trigger internal counters, enabling tuning signals up to 1.1 GHz in programmable frequency steps.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Toggle Frequency (Sin Wave) | ft | 0.1 | 1.4 | 1.1 | GHz |
| Supply Voltage | VCC | 4.5 | 5.5 | V | |
| Supply Current Output Unloaded | ICC | 4.0 | 5.3 | mA | |
| Operating Temperature Range | TA | -40 | 85 | °C | |
| Modulus Control Input High (MC) | VIH1 | 2.0 | VCC | V | |
| Modulus Control Input Low (MC) | VIL1 | GND | 0.8 | V | |
| Divide Ratio Control Input High (SW) | VIH2 | VCC - 0.5 V | VCC | VCC + 0.5 V | V |
| Modulus Setup Time MC to Out | tSET | 6.0 | 9.0 | ns |
Key Features
- 1.1 GHz toggle frequency
- Supply voltage range of 4.5 to 5.5 V
- Low power consumption: 4.0 mA typical
- Operating temperature range of -40 to 85°C
- Pin compatible with the MC12022
- Short setup time (tset) of 6.0 ns typical at 1.1 GHz
- Modulus control input level compatible with standard CMOS and TTL
- Pb-free, halogen-free, and RoHS compliant
Applications
The MC12026A is primarily used in phase-locked loop (PLL) applications, particularly in CMOS synthesizers. It is suitable for systems requiring high-frequency signal processing and programmable frequency steps. Common applications include telecommunications, wireless communication systems, and other high-frequency electronic circuits.
Q & A
- What is the maximum toggle frequency of the MC12026A?
The maximum toggle frequency of the MC12026A is 1.1 GHz.
- What is the supply voltage range for the MC12026A?
The supply voltage range for the MC12026A is 4.5 to 5.5 V.
- What is the typical power consumption of the MC12026A?
The typical power consumption of the MC12026A is 4.0 mA.
- What is the operating temperature range of the MC12026A?
The operating temperature range of the MC12026A is -40 to 85°C.
- Is the MC12026A pin compatible with other models?
Yes, the MC12026A is pin compatible with the MC12022.
- What is the modulus setup time of the MC12026A?
The modulus setup time (tset) of the MC12026A is typically 6.0 ns at 1.1 GHz.
- Is the MC12026A compatible with CMOS and TTL inputs?
Yes, the modulus control input level of the MC12026A is compatible with standard CMOS and TTL.
- Is the MC12026A environmentally friendly?
Yes, the MC12026A is Pb-free, halogen-free, and RoHS compliant.
- What are the divide ratios available for the MC12026A?
The MC12026A supports divide ratios of 8/9 and 16/17, controlled by the SW and MC pins.
- What is the maximum output current of the MC12026A?
The maximum output current of the MC12026A is 10.0 mA.
