Features
- PCIe Gen5 additive phase jitter: 6fs RMS
- PCIe Gen6 additive phase jitter: 4fs RMS
- PCIe Gen7 additive phase jitter: 2.6fs RMS
- DB2000Q additive phase jitter: 10fs RMS
- 12kHz to 20MHz additive phase jitter: 33fs RMS at 156.25MHz
- Power Down Tolerant (PDT) inputs
- Flexible Startup Sequencing (FSS)
- Automatic Clock Parking (ACP) upon loss of CLKIN
- Spread-spectrum tolerant
- CLKIN accepts HCSL or LVDS signal levels
- -40 °C to +105 °C, 1.8V ± 5% operation
- Pin or SMBus selectable:
- 33Ω, 85Ω, or 100Ω differential output impedance
- Output slew rate
- Output amplitude (A001 suffix)
- 9 SMBus addresses plus write protection
Description
The RC19108 is a 1.8V 8-output PCIe Gen7 buffer that is backward compatible with earlier PCIe generations. The RC19108 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.
Parameters
| Attributes | Value |
|---|---|
| Diff. Outputs | 8 |
| Diff. Output Signaling | LP-HCSL |
| Output Freq Range (MHz) | 1 - 400 |
| Diff. Inputs | 1 |
| Power Consumption Typ (mW) | 170 |
| Supply Voltage (V) | 1.8 - 1.8 |
| 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 |
| Additive Phase Jitter Typ RMS (fs) | 33 |
| Function | Fanout Buffer |
| Input Type | LVDS, HCSL |
| Output Banks (#) | 1 |
| Core Voltage (V) | 1.8V, 1.8V |
| Output Voltage (V) | 0.8 |
| Product Category | Clock Buffers & Drivers, PCI Express Clocks |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| VFQFPN | 5.0 x 5.0 x 0.9 | 40 | 0.4 |
Product Comparison
| RC19108A | 9DBL0851 | 9ZXL0851E | RC19008 | |
| Core Voltage (V) | 1.8 | 3.3 | 3.3 | 3.3 |
| Output Impedance | 34, 85, 100 | 85 | 85 | 85, 100 |
| App Jitter Compliance | PCIe Gen1, PCIe Gen2, PCIe Gen3, PCIe Gen4, PCIe Gen5, PCIe Gen6, PCIe Gen7 | PCIe Gen1, PCIe Gen2, PCIe Gen3, PCIe Gen4, PCIe Gen5 | 25G EDR, DB2000Q, IF-UPI, PCIe Gen1, PCIe Gen2, PCIe Gen3, PCIe Gen4, PCIe Gen5, QPI, UPI | PCIe Gen1, PCIe Gen2, PCIe Gen3, PCIe Gen4, PCIe Gen5, PCIe Gen6, PCIe Gen7 |
| VOUT Slew-rate Control | Yes | No | No | Yes |
| Additive Jitter | 4fs | 13fs | - | 4fs |
| VOUT Amplitude Control | Yes | No | No | No |
Applications
- Cloud/High-performance computing
- nVME storage
- Networking
- Accelerators