Overview
The NB3N51034DTR2G, produced by onsemi, is a high-precision, low-phase-noise clock generator designed to support spread spectrum and is particularly suited for PCI Express applications. This device utilizes a 25 MHz fundamental mode parallel resonant crystal to generate four differential HCSL (High-Speed Current Steering Logic) or LVDS (Low-Voltage Differential Signaling) outputs at frequencies of 100 MHz or 200 MHz. It is compliant with PCIe Gen 1, Gen 2, Gen 3, and Gen 4 specifications, making it a versatile component for various high-speed applications.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Operating Supply Voltage Range | 3.3 V ±5% | V |
| Operating Temperature Range | −40°C to +85°C | °C |
| Input Clock/Crystal Frequency | 25 MHz | MHz |
| Output Clock Frequency | 100/200 MHz | MHz |
| Phase Noise (SS OFF) @ 100 MHz | −110 dBc/Hz @ 100 Hz, −123 dBc/Hz @ 1 kHz, −134 dBc/Hz @ 10 kHz, −137 dBc/Hz @ 100 kHz, −138 dBc/Hz @ 1 MHz, −154 dBc/Hz @ 10 MHz | dBc/Hz |
| Power Supply Current (200 MHz output, −1.5% spread) | 135 mA | mA |
| Output to Output Skew | 40 ps | ps |
| Phase RMS Jitter (Integration Range 12 kHz to 20 MHz) | 0.4 ps | ps |
| Spread Spectrum Modulation Frequency | 30 to 33.33 kHz | kHz |
Key Features
- Uses 25 MHz fundamental mode parallel resonant crystal
- Power Down Mode
- 4 low skew HCSL or LVDS outputs
- OE tri-states outputs
- Selectable spread options of −0.5%, −1.0%, −1.5%, and no spread
- PCIe Gen 1, Gen 2, Gen 3, Gen 4 compliant
- Functionally compatible with IDT557-05, IDT5V41066, IDT5V41236 with enhanced performance
- Pb-free device
Applications
- Networking
- Consumer electronics
- Computing and peripherals
- Industrial equipment
- PCIe clock generation for Gen 1, Gen 2, Gen 3, and Gen 4
End products include switches and routers, set-top boxes, LCD TVs, servers, desktop computers, and automated test equipment.
Q & A
- What is the primary function of the NB3N51034DTR2G?
The NB3N51034DTR2G is a high-precision, low-phase-noise clock generator that generates 4 differential HCSL or LVDS outputs from a 25 MHz crystal input.
- What are the output frequencies supported by the NB3N51034DTR2G?
The device supports output frequencies of 100 MHz and 200 MHz.
- What spread spectrum options are available on the NB3N51034DTR2G?
The device offers selectable spread options of −0.5%, −1.0%, −1.5%, and no spread.
- Is the NB3N51034DTR2G compliant with PCIe specifications?
- What is the operating temperature range of the NB3N51034DTR2G?
The operating temperature range is −40°C to +85°C.
- What is the typical power supply current for the NB3N51034DTR2G at 200 MHz output with −1.5% spread?
The typical power supply current is 135 mA.
- How many output channels does the NB3N51034DTR2G have?
The device has 4 differential HCSL or LVDS output channels.
- What is the phase RMS jitter of the NB3N51034DTR2G?
The phase RMS jitter is 0.4 ps over an integration range of 12 kHz to 20 MHz.
- What are the typical applications of the NB3N51034DTR2G?
Typical applications include networking, consumer electronics, computing and peripherals, industrial equipment, and PCIe clock generation.
- Is the NB3N51034DTR2G Pb-free?
