Features
- Direct connection to 100 ohm transmission lines; saves 24 resistors compared to standard PCIe devices
- 47 mW typical power consumption in PLL mode; minimal power consumption
- Outputs can optionally be supplied from any voltage between 1.05 and 1.5 V; maximum power savings
- OE# pins; support DIF power management
- HCSL-compatible differential input; can be driven by common clock sources
- Spread spectrum tolerant; allows reduction of EMI
- LP-HCSL differential clock outputs; reduced power and board space
- Programmable slew rate for each output; allows tuning for various line lengths
- Programmable output amplitude; allows tuning for various application environments
- Pin/software selectable PLL bandwidth and PLL Bypass; minimize phase jitter for each application
- Outputs blocked until PLL is locked; clean system start-up
- Configuration can be accomplished with strapping pins; SMBus interface not required for device control
- 3.3 V tolerant SMBus interface works with legacy controllers
- Space-saving 5x5 mm 40-pin VFQFPN; minimal board space
- 3 selectable SMBus addresses; multiple devices can easily share an SMBus segment
Description
The 9DBU0641 is a member of IDT's 1.5 V Ultra-Low-Power (ULP) PCIe family. It has integrated output terminations providing Zo=100 ohms for direct connection to 100 ohm transmission lines. The device has 6 output enables for clock management and 3 selectable SMBus addresses.
Parameters
| Attributes | Value |
|---|---|
| Diff. Outputs | 6 |
| Diff. Output Signaling | LP-HCSL |
| Output Freq Range (MHz) | 1 - 167 |
| Diff. Inputs | 1 |
| Diff. Input Signaling | HCSL |
| Accepts Spread Spec Input | Yes |
| Power Consumption Typ (mW) | 47 |
| Supply Voltage (V) | 1.05 - 1.5, 1.5 - 1.5 |
| Output Type | LP-HCSL |
| Package Area (mm²) | 25 |
| Battery Backup | No |
| Battery Seal | No |
| CPU Supervisory Function POR | No |
| Crystal Frequency Trimming | No |
| Frequency Out Pin | No |
| Input Freq (MHz) | 30 - 175 |
| Additive Phase Jitter Typ RMS (fs) | 313 |
| Function | Zero Delay Buffer |
| Input Type | HCSL |
| Output Banks (#) | 1 |
| Core Voltage (V) | 1.5 |
| Output Voltage (V) | 0.8 |
| Product Category | 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 |