Features
- SMBus write lock feature; increases system security
- PCIe Gen 1–7 compliance
- LP-HCSL outputs; eliminate 24 resistors, save 41mm² of area
- 12 OE# pins; hardware control of each output
- 9 selectable SMBus addresses; multiple devices can share the same SMBus segment
- Selectable PLL BW; minimizes jitter peaking in cascaded PLL topologies
- Hardware/SMBus control of PLL bandwidth and bypass; change mode without power cycle
- Spread spectrum compatible; tracks spreading input clock for EMI reduction
- 100MHz and 133.33MHz PLL mode; UPI and legacy QPI support
- 9mm x 9mm 64-QFN package; small board footprint
9ZXL06x2E-08xxE-12x2E - Block Diagram
Description
The 9ZXL1232E is a second-generation, enhanced-performance DB1200ZL differential buffer. The part is a pin-compatible upgrade to the 9ZXL1232A while offering a much-improved phase jitter performance and an SMBus Write Lock feature for increased system security. A fixed external feedback maintains low drift for critical QPI/UPI applications. The 9ZXL1232E has an SMBus Write Lockout pin for increased device and system security.
Parameters
| Attributes | Value |
|---|---|
| Diff. Outputs | 12 |
| Diff. Output Signaling | LP-HCSL |
| Output Freq Range (MHz) | 1 - 400 |
| Diff. Inputs | 1 |
| Diff. Input Signaling | HCSL |
| Accepts Spread Spec Input | Yes |
| Power Consumption Typ (mW) | 481 |
| Supply Voltage (V) | 3.3 - 3.3 |
| Output Type | LP-HCSL |
| Diff. Termination Resistors | 24 |
| Package Area (mm²) | 81 |
| Battery Backup | No |
| Battery Seal | No |
| CPU Supervisory Function POR | No |
| Crystal Frequency Trimming | No |
| Frequency Out Pin | No |
| Inputs (#) | 1 |
| Input Freq (MHz) | 33 - 150 |
| Function | Zero Delay Buffer |
| Input Type | HCSL |
| Output Banks (#) | 1 |
| Core Voltage (V) | 3.3 |
| Output Voltage (V) | 0.7 |
| Product Category | PCI Express Clocks, Processor Clock Buffers, Zero Delay Buffers |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| VFQFPN | 9.0 x 9.0 x 0.9 | 64 | 0.5 |
Applications
- Servers/High-performance computing
- nVME storage
- Networking
- Accelerators
- Industrial control
Renesas Boards & Kits
EVK9ZXL1951D
Active
Evaluation Kit for 19-Output DB1900Z for PCIe Gen1-4 and QPI/UPI
The evaluation board is designed to help the customer evaluate the 9ZXL1951D. The device is programmable through an SMBus interface. The user guide details the board set and connection, as well as the companion Graphical User Interface (GUI) installation for communicating with the device. The... Read More
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