Overview
The MC100EL1648DTR2, produced by Onsemi, is a 5 V ECL (Emitter-Coupled Logic) Voltage Controlled Oscillator (VCO) Amplifier. This device is designed to operate within a wide frequency range and is ideal for applications requiring precise frequency generation and control. It utilizes advanced bipolar process technology, enabling it to operate at extended frequency ranges. The MC100EL1648DTR2 requires an external parallel tank circuit consisting of an inductor and capacitor, and optionally, a varactor diode for voltage-controlled tuning.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Operating Frequency | Up to 1100 | MHz |
| Power Supply Current | 19 | mA at 5.0 Vdc |
| PECL Mode Operating Range | VCC = 4.2 V to 5.5 V with VEE = 0 V | |
| NECL Mode Operating Range | VCC = 0 V with VEE = −4.2 V to −5.5 V | |
| Input Capacitance | 6.0 | pF (Typ) |
| Operating Temperature Range | −40 to +85 | °C |
| Storage Temperature Range | −65 to +150 | °C |
| Thermal Resistance (Junction-to-Ambient) | 190 (SOIC-8), 185 (TSSOP-8) | °C/W at 0 lfpm |
| Package | SOIC-8, TSSOP-8 |
Key Features
- Advanced bipolar process technology for extended frequency range operation.
- On-chip termination emitter resistor (RE) with a nominal value of 510 Ω, facilitating direct ac-coupling of the output signal into a transmission line.
- No external pull-down resistor required for output dc current path.
- Low power consumption: 19 mA at 5.0 Vdc.
- Support for both PECL and NECL modes.
- Pb-free devices.
Applications
The MC100EL1648DTR2 is suitable for various high-frequency applications, including:
- Local oscillators in telecommunications and electronic test equipment.
- High-speed digital telecommunications systems.
- Fixed frequency clock generation.
- Voltage-controlled oscillator applications where dynamic tuning is required.
Q & A
- What is the typical operating frequency range of the MC100EL1648DTR2?
The MC100EL1648DTR2 can operate up to 1100 MHz. - What are the power supply requirements for the MC100EL1648DTR2?
The device operates in PECL mode with VCC = 4.2 V to 5.5 V and VEE = 0 V, and in NECL mode with VCC = 0 V and VEE = −4.2 V to −5.5 V. - What is the input capacitance of the MC100EL1648DTR2?
The input capacitance is typically 6.0 pF. - What are the operating and storage temperature ranges for the MC100EL1648DTR2?
The operating temperature range is −40 to +85 °C, and the storage temperature range is −65 to +150 °C. - Does the MC100EL1648DTR2 require an external pull-down resistor for the output?
No, the device has an on-chip termination emitter resistor, so an external pull-down resistor is not required. - What packages are available for the MC100EL1648DTR2?
The device is available in SOIC-8 and TSSOP-8 packages. - Can the MC100EL1648DTR2 be used as a crystal oscillator?
No, the MC100EL1648DTR2 is not usable as a crystal oscillator. - How does the MC100EL1648DTR2 facilitate voltage-controlled tuning?
The device allows for voltage-controlled tuning by incorporating a varactor diode into the external tank circuit, which changes the resonant frequency based on the applied voltage. - What are some typical applications of the MC100EL1648DTR2?
Typical applications include local oscillators, high-speed digital telecommunications systems, and electronic test equipment. - Is the MC100EL1648DTR2 Pb-free?
Yes, the MC100EL1648DTR2 is a Pb-free device.
