Key facts
- Brand
- Analog Devices
- Model
- AD9540
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD9540 655 MHz Low Jitter Clock Generator Datasheet
The AD9540 clock generator is designed for high‑performance data‑converter and networking applications, providing a 655 MHz CML‑mode, PECL‑compliant output driver with programmable slew rates. It supports external VCO frequencies up to 2.7 GHz and features a flexible 200 MHz phase‑frequency detector, programmable charge‑pump current, and a 25 Mb/s serial I/O interface.
Key specifications include ultra‑low jitter (720 fs rms for a 105 MHz ADC clock), wide‑range programmable input dividers (M,N = 1‑16), RF divider options (R = 1, 2, 4, 8), and a total power consumption of 400 mW. The device operates over an extended automotive temperature range of –40 °C to +85 °C and is supplied in a 48‑lead LFCSP package.
Analog Devices AD9540 specifications
| Phase Noise @ 10 Hz offset | 80 dBc/Hz |
|---|---|
| Programmable RF Divider | R = 1, 2, 4, 8 (bypassable) |
| External VCO Frequency Range | Up to 2.7 GHz |
| Total Power Consumption (all functions on) | 400 mW |
| Operating Temperature Range | -40 °C to +85 °C |
Source: Analog Devices AD9540 655 MHz Low Jitter Clock Generator Datasheet
All Analog Devices AD9540 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum external VCO frequency the AD9540 can handle?
The AD9540 supports external VCO rates up to 2.7 GHz.
From: Analog Devices AD9540 655 MHz Low Jitter Clock Generator Datasheet
How much power does the AD9540 consume when all functions are on?
It consumes 400 mW total power with all functions active.
From: Analog Devices AD9540 655 MHz Low Jitter Clock Generator Datasheet
What temperature range can the AD9540 operate in?
The AD9540 is specified to operate over the extended automotive range of –40 °C to +85 °C.
From: Analog Devices AD9540 655 MHz Low Jitter Clock Generator Datasheet
How much power does the AD9540 consume when all functions are on?
Total power consumption with all functions on is 400 mW.
From: Analog Devices AD9540 655 MHz Low Jitter Clock Generator Datasheet