SI52202-A01BGM

Product Overview

The SI52202-A01BGM from Skyworks Solutions Inc. is a PCI Express (PCIe) clock generator integrated circuit supplied in a 20-QFN (3x3) surface-mount package with an exposed pad. The device is intended for PCIe timing applications and provides one output circuit with a maximum frequency of 100 MHz. Its input can be clock or crystal, while the output formats are HCSL and LVCMOS. The part operates from a 1.5 V to 1.8 V supply and is specified for an ambient temperature range of -40°C to 85°C.

Key Features

• PCI Express (PCIe) clock generator with PLL support
• One output circuit and maximum output frequency of 100 MHz
• Clock or crystal input; HCSL and LVCMOS output formats
• Input-to-output ratio of 1:2 with differential output capability
• 1.5 V to 1.8 V supply range and -40°C to 85°C operating temperature
• Surface-mount 20-VFQFN exposed-pad package, supplier package 20-QFN (3x3)

Applications

• PCIe reference clock generation for embedded controllers and I/O subsystems
• HCSL or LVCMOS clock delivery to PCIe devices in board-level timing networks
• Crystal-based or external-clock-based PCIe timing synchronization in compact surface-mount designs

Design & Procurement Notes

Designers should confirm that the PCIe clock tree requires a single-output generator with HCSL or LVCMOS formatting and a maximum frequency of 100 MHz. The 1.5 V to 1.8 V supply range, -40°C to 85°C operating temperature, and 20-QFN (3x3) exposed-pad package should be matched to the board power, thermal, and land-pattern constraints. The 1:2 input-to-output ratio and No/Yes differential input-to-output specification are useful when evaluating crystal or clock input conditioning and output termination. Since the package is surface mount, soldering and reflow profiles should be reviewed for the exposed pad.