Renesas Electronics 9FGL PCI Express (PCIe) Clock Generators

Renesas Electronics 9FGL PCI Express (PCIe) Clock Generators are high-speed serial communication interfaces with speeds up to 8GB/s. As with any serial communication interface, the most critical clock parameter is phase jitter. This parameter makes Renesas Electronics PCIe clock generators the heart of PCIe timing and the gating factor in system performance and reliability.

Features

Direct connection to 100Ω (xx41) or 85Ω (xx51) transmission lines; saves 32 resistors compared to standard PCIe devices
120mW (9FGL06) and 130mW (9FGL08) typical power consumption; eliminates thermal concerns
SMBus-selectable features allow optimization to customer requirements:
- Control input polarity
- Control input pull up/downs
- Slew rate for each output
- Differential output amplitude
- 33Ω, 85Ω, or 100Ω output impedance for each output
- Spread spectrum amount
P1 device allows factory programming of customer-defined SMBus power-up default; allows exact optimization to customer requirements
1 and 51 devices contain default configuration; SMBus interface not required for device operation

Outputs can optionally be supplied from any voltage between 1.05 and 3.3V; maximum power savings
OE# pins; support DIF power management
25MHz default input frequency; supports tight ppm with 0 ppm synthesis error
Pin/SMBus selectable 0%, -0.25%, or -0.5% spread on DIF outputs %; minimize EMI and phase jitter for each application
DIF outputs blocked until PLL is locked; clean system start-up
Two selectable SMBus addresses; multiple devices can easily share an SMBus segment
Space-saving package options:
- 4mm × 4mm VFQFPN24 (9FGL02x1)
- 5mm × 5mm VFQFPN32 (9FGL04x1)
- 5mm × 5mm VFQFPN40 (9FGL06x1)
- 6mm × 6mm VFQFPN48 (9FGL08x1)