Renesas Electronics 9FGL0x Clock Generators

9FGL0x Clock Generators are 3.3V PCIe Gen1-5 generators with 2, 4, and 8 100MHz PCIe output pairs. These buffers come with 2, 4, and 8 100MHz PCIe output versions. The 9FGL0x generators feature integrated terminations for 100Ω and 85Ω systems, 112mW to 206mW typical power consumption (at 3.3V), and 25MHz input frequency. These generators also feature pin-selectable SRnS 0%, CC 0%, CC/SRIS 0.5% spread, and SMBus-selectable CC/SRIS -0.25% spread. Typical applications include nVME storage, networking, accelerators, industrial control, and servers/high-performance computing.

Features

2, 4, or 8 100MHz PCIe output pairs
One 3.3V LVCMOS REF output with Wake-OnLAN (WOL) support
Integrated terminations for 100Ω and 85Ω systems save 4 resistors per output
112mW to 206mW typical power consumption (at 3.3V)
VDDIO rail allows 35% power savings at optional 1.05V (9FGL06 and 9FGL08 only)
Devices contain default configuration; SMBus not required
Contact the factory for custom default configurations
SMBus-selectable features allow optimization to customer requirements:
- Input polarity and pull-up/pull-downs
- Output slew rate and amplitude
- Output impedance (85Ω or 100Ω) for each output

OE# pins support PCIe CLKREQ# function
Pin-selectable SRnS 0%, CC 0%, and CC/SRIS 0.5% spread
SMBus-selectable CC/SRIS -0.25% spread
Clean switching between the CC/SRIS spread settings
DIF outputs are blocked until PLL is locked; clean system start-up
2 selectable SMBus addresses
Space-saving packages:
- 4mm × 4mm 24-VFQFPN (9FGL02x1D)
- 5mm × 5mm 32-VFQFPN (9FGL04x1D)
- 5mm × 5mm 40-VFQFPN (9FGL06x1D)
- 6mm × 6mm 48-VFQFPN (9FGL08x1D)

Specifications

90fs RMS typical jitter (PCIe Gen5 CC)
<50ps cycle-to-cycle jitter on differential outputs
<50ps output-to-output skew on differential outputs

±0ppm synthesis error on differential outputs
25MHz input frequency

Applications

Servers/high-performance computing
nVME storage
Networking

Accelerators
Industrial control

Renesas Electronics 9FGL0x Clock Generators

Features

Specifications

Applications

Block Diagram

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