Features
- Integrated crystal in the package for board space saving
- Configurable OE pin functions as OE, PD#, PPS, or DFC control function
- Configurable PLL bandwidth/minimizes jitter peaking
- PPS: Proactive Power Saving features save power during the end device power down mode
- PPB: Performance Power Balancing feature allows minimum power consumption based on required performance
- DFC: Dynamic Frequency Control feature allows up to 4 different frequencies to switch dynamically
- Spread spectrum clock support to lower system EMI
- I²C interface
- Supported by Renesas' Timing Commander™ software tool
Description
The 5X35023 VersaClock® programmable clock generator is designed for low-power, consumer, and high-performance PCI Express applications. The device is a three-PLL architecture design, and each PLL is individually programmable and allows for up to five unique frequency outputs.
The 5X35023 has built-in unique features such as Proactive Power Saving (PPS), Performance-Power Balancing (PPB), Overshoot Reduction Technology (ORT), and Extreme Low Power DCO. An internal OTP memory allows the user to store the configuration in the device without programming after power up, then program the 5X35023 again through the I²C interface.
The device has programmable VCO and PLL source selection to allow the user to do power-performance optimization based on the application requirements. It also supports one single-ended output and two pairs of differential outputs that support LVCMOS, LP-HCSL, LVDS, and LVPECL. A low-power 32.768kHz clock is supported with only less than 2μA current consumption for a system RTC reference clock.
Parameters
| Attributes | Value |
|---|---|
| App Jitter Compliance | PCIe Gen1, PCIe Gen2, PCIe Gen3 |
| Outputs (#) | 5 |
| Output Type | LVCMOS, LVPECL, LP-HCSL, LVDS |
| Output Freq Range (MHz) | 0.032768 - 500 |
| Input Freq (MHz) | 25 - 25 |
| Inputs (#) | 1 |
| Input Type | Crystal (integrated) |
| Output Banks (#) | 3 |
| Core Voltage (V) | 3.3 |
| Output Voltage (V) | 1.8V, 2.5V, 3.3V |
| Phase Jitter Typ RMS (ps) | 1 |
| Prog. Interface | I2C, OTP |
| Spread Spectrum | Yes |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| VFQFPN | 4.0 x 4.0 x 1.5 | 24 | 0.5 |
Product Comparison
| 5X35023 | 5L35021 | 5L35023 | 5P35023 | |
| Outputs (#) | 5 | 5 | 7 | 7 |
| Output Type | LP-HCSL, LVCMOS, LVDS, LVPECL | LP-HCSL, LVCMOS | LP-HCSL, LVCMOS | LP-HCSL, LVCMOS, LVDS, LVPECL |
| Core Voltage (V) | 3.3 | 1.8 | 1.8 | 3.3 |
| Output Voltage (V) | 1.8, 2.5, 3.3 | 1.8 | 1.8 | 1.8, 2.5, 3.3 |
| Pkg. Dimensions (mm) | 4.0 x 4.0 x 1.5 | 3.0 x 3.0 x 1.0 | 4.0 x 4.0 x 0.9 | 4.0 x 4.0 x 0.9 |
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Additional Applications
- PCIe Gen 1/2/3 clock generator
- Consumer application crystal replacements
- Smart device, handheld, computing, and consumer applications