Features
- PCIe Gen1–7 compliance
- Pin selectable 4:4 mode or dual 2:2 MUX mode
- Input frequency range: 1Hz to 350MHz
- Supports LVPECL, LVDS, HCSL, and LVCMOS input reference clocks
- Configuration strap pin option selecting output impedance of 100Ω or 85Ω for board space optimization
- Three pin-selectable output amplitudes per bank
- Flexible power supply voltage of 1.8V, 2.5V, or 3.3V
- -40 °C to +85 °C operating temperature range
- 5mm × 5mm 32-VFQFPN package; small board footprint
- Easy AC coupling to other logic families. See application note AN-891.
Description
The 9DML4493A is a Gen1–7 compliant 4-input, 4-output clock multiplexer. It can also operate as a dual 2-input, 2-output clock multiplexer. It has very low additive phase jitter and is suitable for all PCIe data rates. The device supports today's complex system power sequencing requirements with Power Down Tolerant (PDT) and Flexible Power Sequencing (FPS) features.
For information regarding evaluation boards and material, please contact your local Renesas sales representative.
Parameters
| Attributes | Value |
|---|---|
| Diff. Outputs | 4 |
| Diff. Output Signaling | LP-HCSL |
| Output Freq Range (MHz) | 1 - 200 |
| Diff. Inputs | 4 |
| Diff. Input Signaling | HCSL, LVPECL, LVDS, LVCMOS |
| Accepts Spread Spec Input | Yes |
| Power Consumption Typ (mW) | 124 |
| Supply Voltage (V) | 3.3 - 3.3, 2.5 - 2.5, 1.8 - 1.8 |
| Output Type | LP-HCSL |
| Diff. Termination Resistors | 0 |
| Package Area (mm²) | 16 |
| Battery Backup | No |
| Battery Seal | No |
| CPU Supervisory Function POR | No |
| Crystal Frequency Trimming | No |
| Frequency Out Pin | No |
| Inputs (#) | 4 |
| Input Freq (MHz) | 1.0E-6 - 350 |
| Additive Phase Jitter Typ RMS (fs) | 78 |
| Function | Multiplexer |
| Input Type | HCSL |
| Output Banks (#) | 2 |
| Core Voltage (V) | 3.3V, 2.5V, 1.8V |
| Output Voltage (V) | 3.3V, 2.5V, 1.8V |
| Product Category | Clock Multiplexers, PCI Express Clocks |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| VFQFPN | 5.0 x 5.0 x 0.9 | 32 | 0.5 |
Applications
- Servers
- Storage
- Networking
- High-Performance computing
- Accelerators