Overview
The LTC6902IMS#PBF, produced by Analog Devices Inc., is a precision, low-power, and easy-to-use multiphase oscillator. This device is designed to provide multiphase outputs in a compact 10-lead MSOP package. It is highly versatile, offering a wide range of frequencies and programmable features that make it suitable for various applications. The oscillator frequency can be set by a single external resistor, and it also includes an optional spread spectrum frequency modulation (SSFM) capability to improve electromagnetic compatibility (EMC) performance.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Operating Supply Range | 2.7V to 5.5V | |
| Frequency Range | 5kHz to 20MHz | |
| Phase Outputs | 2-, 3-, or 4-phase | |
| Frequency Error | < 1.5% Max (5kHz to 10MHz, TA = 25°C) < 2% Max (5kHz to 10MHz, TA = 0°C to 70°C) | |
| Temperature Stability | ±40ppm/°C | |
| Supply Current | 400µA Typical (V+ = 3V, 1MHz) | |
| Start-Up Time | 50µs to 1.5ms | |
| Output Driver | 100Ω CMOS | |
| Package | 10-Lead MSOP |
Key Features
- Single external resistor sets the oscillator frequency.
- Optional spread spectrum frequency modulation (SSFM) for improved EMC performance.
- Programmable multiphase circuit provides 2-, 3-, or 4-phase waveforms.
- Low power consumption with a typical supply current of 400µA.
- Fast start-up time ranging from 50µs to 1.5ms.
- Operates from a single supply voltage of 2.7V to 5.5V.
- Compact 10-lead MSOP package.
Applications
- Switching power supply clock reference.
- Portable and battery-powered equipment.
- PDAs and cell phones.
- Clocking switched capacitor filters.
Q & A
- What is the operating supply range of the LTC6902IMS#PBF?
The operating supply range is from 2.7V to 5.5V.
- How is the oscillator frequency set in the LTC6902IMS#PBF?
The oscillator frequency is set by a single external resistor connected from the SET pin to the V+ pin.
- What is the purpose of the spread spectrum frequency modulation (SSFM) in the LTC6902IMS#PBF?
The SSFM modulates the oscillator's frequency to spread the oscillator's energy over a wide frequency band, improving electromagnetic compatibility (EMC) performance.
- What are the available phase output configurations for the LTC6902IMS#PBF?
The device can provide 2-, 3-, or 4-phase outputs.
- What is the typical supply current of the LTC6902IMS#PBF?
The typical supply current is 400µA at V+ = 3V and 1MHz.
- How long does the LTC6902IMS#PBF take to start up?
The start-up time ranges from 50µs to 1.5ms.
- What type of output driver does the LTC6902IMS#PBF have?
The device has a 100Ω CMOS output driver.
- In what package is the LTC6902IMS#PBF available?
The device is available in a 10-lead MSOP package.
- What are some common applications of the LTC6902IMS#PBF?
Common applications include switching power supply clock references, portable and battery-powered equipment, PDAs, cell phones, and clocking switched capacitor filters.
- How does the temperature stability of the LTC6902IMS#PBF affect its performance?
The device has a temperature stability of ±40ppm/°C, ensuring stable performance over a range of temperatures.
