9ZXL1950D Description
The 9ZXL1930D / 9ZXL1950D are second-generation, enhanced-performance DB1900Z-derivative differential buffers. The parts are pin-patible upgrades to the 9ZXL1930B and 9ZXL1950B, while offering a much improved phase jitter performance. A fixed external feedback maintains low drift for critical QPI/UPI applications.
9ZXL1950D Key Features
- 19 Low-Power HCSL (LP-HCSL) output pairs (1930D)
- 19 Low-Power HCSL (LP-HCSL) output pairs with 85Ω Zout
- LP-HCSL outputs; eliminate 38 resistors, save 65mm2 of area (1930D)
- LP-HCSL outputs with 85Ω Zout; eliminate 76 resistors, save 130mm2 of area (1950D)
- SMBus OE bits; software control of each output
- 9 selectable SMBus addresses; multiple devices can share the
- Selectable PLL BW; minimizes jitter peaking in cascaded PLL
- Hardware/SMBus control of PLL bandwidth and bypass
- 10 × 10 mm 72-VFQFPN package; small board footprint
- Cycle-to-cycle jitter: < 50ps