9DML0441
9DML0441 is 2:4 3.3V PCIe Gen1-5 Clock Mux manufactured by Renesas.
Description
The 9DML0441 and 9DML0451 devices are 3.3V members of Renesas' Full-Featured PCIe family. They support PCIe Gen1- 6 mon Clocked (CC), Separate Reference no Spread (SRn S), and Independent Reference (IR) clock architectures. The parts provide a choice of asynchronous or glitch-free, gapped-clock switching modes, and offer a choice of integrated output terminations for direct connection to 85Ω or 100Ω transmission lines.
Applications
- Servers
- ATE
- Storage
- Master/Slave applications
Output Features
- Four 1- 200MHz Low-Power HCSL (LP-HCSL) DIF pairs
- 9DML0441 default ZOUT = 100
- 9DML0451 default ZOUT = 85
- See AN-891 for easy termination to other logic levels
Features
- Direct connection to 100 (xx41) or 85 (xx51) transmission lines saves up to 16 resistors
- 79m W typical power consumption
- Spread Spectrum Clocking (SSC) patible
- OE# pins for each output
- HCSL-patible differential inputs
- Selectable asynchronous or glitch-free, gapped-clock switching; allows the mux to be selected at power up even if both inputs are not running, then transition to glitch-free switching mode
- Space saving 4 × 4 mm 24-VFQFPN
- Contact factory for customized versions
Key Specifications
- PCIe Gen1- 6 CC support
- PCIe Gen1- 6 IR support
- Output-to-output skew < 50ps
- PCIe Gen6 additive jitter (CC) is < 0.02ps rms
- 12k Hz- 20MHz additive phase jitter 281fs rms typical at156.25MHz
Block Diagram
^OE(3:0)#
DIF_INA# DIF_INA DIF_INB# DIF_INB v S W_MO DE ^SE L_A_B #
VDDR3.3 x2 4
VDD3.3
Note: Default resistors are internal on 41/51 devices.
GNDR x2 EPAD/GND
DIF3# DIF3 DIF2# DIF2 DIF1# DIF1 DIF0# DIF0
9DML0441 / 9DML0451 DECEMBER 12, 2024
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