Features
- LP-HCSL outputs eliminate up to 80 terminated resistors
- PCIe Gen 1–7 compliance
- Drive both source-terminated and double-terminated loads
- Selectable output slew rate via SMBus
- Supports 85Ω output impedance
- Open-drain LOS (Loss-Of-Signal) indication output
- Power down tolerance (PDT)
- Flexible startup sequencing (FSS)
- Automatic clock parking (ACP)
- Dedicated OE# pins to control group output
- 4-wire Side-Band interface and device daisy-chaining
- SMBus write protection features with 9 selectable addresses
- 6mm x 6mm 80-GQFN and 10mm x 10mm 72-VFQFPN packages
Description
The RC19020 is a 20-output PCIe Gen7 buffer that is backward compatible with earlier PCIe generations. The RC19020 provides ultra-low additive jitter and reduced in-to-out delay performance for better design margin and incorporates several features for easier and more robust design.
RC19020 is also pin-compatible to DB2000Q/DB2000QL plus adding Loss-Of-Signal (LOS) indication and an SBI_OUT pin for multiple clock chip daisy-chain.
Parameters
| Attributes | Value |
|---|---|
| Diff. Outputs | 20 |
| Diff. Output Signaling | LP-HCSL |
| Output Freq Range (MHz) | 1 - 400 |
| Diff. Inputs | 1 |
| Power Consumption Typ (mW) | 716 |
| Supply Voltage (V) | 3.3 - 3.3 |
| Output Type | LP-HCSL |
| Battery Backup | No |
| Battery Seal | No |
| CPU Supervisory Function POR | No |
| Crystal Frequency Trimming | No |
| Frequency Out Pin | No |
| Inputs (#) | 1 |
| Input Freq (MHz) | 1 - 400 |
| Adjustable Phase | No |
| Noise Floor (dBc/Hz) | -154 |
| Channels (#) | 2 |
| Additive Phase Jitter Typ RMS (fs) | 30 |
| Function | Fanout Buffer |
| Input Type | LVDS, HCSL |
| Output Banks (#) | 1 |
| Core Voltage (V) | 3.3 |
| Output Voltage (V) | 0.8 |
| Product Category | Clock Buffers & Drivers, PCI Express Clocks |