Model No: 9QXL2001BNHGI

Renesas Electronics Corporation 9QXL2001BNHGI

Manufacturer: Renesas Electronics Corporation
SEMICON NO.: 9QXL2001BNHGI
Package: 80-VFQFN
Stock: In stock
Description: Clock Buffer (Distribution) IC 1:20 400 MHz
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 Mfr       Renesas Electronics Corporation 
 Device Type    20-Output DB2000QL PCIe Clock Buffer / Fanout Buffer
 Function   Fanout Buffer (Distribution)
 Number of Circuits     1
 Ratio - Input:Output     1:20
 Number of Outputs     20
 Input Type     HCSL
 Output Type   LP-HCSL 
 Output Impedance   85 Ω 
 Differential - Input:Output     Yes / Yes
 Maximum Frequency   400 MHz
 Input Frequency Range   1 MHz to 400 MHz
 Supply Voltage 3.135 V to 3.465 V (3.3V typical)
 Core Voltage   3.3 V
 Output Voltage   0.7 V
 Power Consumption (Typ)     488 mW
 Operating Temperature -40°C to +85°C
 Package 80-VFQFN
 Mounting Type Surface Mount
 Compliance    
 RoHS Compliant
 
The 9QXL2001BNHGI is an ultra-high-performance clock fanout buffer developed by Renesas Electronics (formerly Integrated Device Technology), engineered to meet the stringent timing requirements of PCI Express Gen4, Gen5, and Intel UPI (Ultra Path Interconnect) applications. As a member of the DB2000QL family, this device provides twenty differential output pairs capable of distributing low-jitter reference clocks across complex high-speed digital systems. 
Fabricated using advanced silicon technology and housed in an 80-pin VFQFN dual-row package, this buffer delivers exceptional additive phase jitter performance in the femtosecond range, ensuring signal integrity at data rates exceeding 32 GT/s. The device operates from a single 3.3V or 2.5V supply and supports both HCSL and LP-HCSL output formats, making it a critical timing component in modern server, networking, and high-performance computing architectures where precise clock distribution is paramount.
Applications
Due to its exceptional jitter performance and flexible output configuration, the 9QXL2001BNHGI is extensively deployed in data center servers, enterprise networking equipment, and high-performance computing platforms requiring precise clock distribution. It serves as the primary clock fanout solution in PCIe Gen5 and Gen6 backplane designs, where multiple endpoints demand synchronous reference clocks with minimal skew and additive noise. The clock buffer is particularly valuable in artificial intelligence and machine learning acceleration platforms, where timing accuracy directly impacts computational throughput and system reliability. In telecommunications infrastructure, it distributes reference clocks across switch fabrics and router line cards, maintaining signal integrity across high-density PCB layouts. Furthermore, the buffer finds application in storage area networks, fiber channel systems, and test measurement equipment, where its low-jitter characteristics and robust output drive capability ensure reliable operation in demanding electromagnetic environments.
Alternative fanout buffer Models
1. Silicon Labs Si53144: This 20-output PCIe Gen5 clock buffer offers comparable jitter performance with flexible output configuration, providing an alternative solution for high-density server clock distribution networks.
2. Microchip SY7557A: This PCIe Gen5-compliant buffer provides sixteen outputs with programmable termination, offering a compact alternative for space-constrained high-speed digital designs.
3. Diodes Inc PI6C557-05: This clock distributor offers similar output count with integrated termination resistors and spread-spectrum tolerance, providing a cost-effective solution for volume production applications.