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Product Detailed Parameters
- Description：IC OSC PCI EXPRESS 2OUT 10TDFN
- Series：-
- PLL：Yes
- Mfr：Skyworks Solutions Inc.
- Main Purpose：PCI Express (PCIe)
- Input：Clock, Crystal
- Output：HCSL
- Number of Circuits：1
- Ratio - Input:Output：1:02
- Differential - Input:Output：No/Yes
- Frequency - Max：100MHz
- Voltage - Supply：2.97V ~ 3.63V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-TDFN (3x3)
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Overview
The SI52112-A2-GM2R is a PCIe Gen 1 dual-output clock generator from Skyworks Solutions. It sources two differential HCSL clocks from a 25 MHz crystal or clock input, supporting up to 100 MHz output frequency. The device features a triangular spread spectrum profile with -0.5% down-spread for EMI reduction. Operating on a 3.3 V supply (2.97 V to 3.63 V), it consumes 17 mA and operates within an extended temperature range of –40 °C to +85 °C. It is housed in a 10-pin TDFN package and supplied in tape and reel format.
Feature Summary
- PCIe Gen 1 compliant dual-output clock generation
- -0.5% triangular spread spectrum for EMI reduction
- Low power consumption: 17 mA at 3.3 V
- HCSL differential outputs without termination resistors
Applications
- Network Attached Storage
- Multi-function Printers
- Wireless Access Points
- Routers
Procurement Notes
Verify the 'GM2R' suffix indicates the 10-pin TDFN package in tape and reel configuration. Confirm the 'A2' designation ensures the inclusion of the -0.5% spread spectrum feature. Check current availability status as this component may be subject to discontinuation notices.
Selection Notes
Select the SI52112-A2 variant over A1 if spread spectrum functionality is required for EMI compliance. Ensure the design accommodates the 10-pin TDFN footprint. For higher speed requirements such as PCIe Gen 2 or Gen 3, consider the B-series variants like the SI52112-B3 or B5.
Part Context
This part belongs to the Si52112-A1/A2 family designed specifically for PCI-Express Gen 1 applications. It provides a compact solution for consumer and embedded systems requiring low-power clocking. The 'R' suffix denotes the specific tape and reel packaging method used for automated assembly.
Replacement Considerations
Skyworks recommends the SI52112-B6-GT as a manufacturer-recommended alternative. Verify compatibility regarding package type and electrical specifications before substitution.
FAQ
Does the SI52112-A2 support spread spectrum?
Yes, the SI52112-A2 supports a -0.5% down spread profile. The SI52112-A1 does not support spread spectrum.
What is the maximum output frequency?
The maximum output frequency is 100 MHz.
Is termination resistance required for the outputs?
No, the device utilizes low power HCSL differential output buffers that do not require termination resistors.
