DATA SHEETSKY53510/SKY53580/SKY535401. Pin Descriptions1.1. SKY53510 7x7 mm 48-QFN Pin Descriptions 1 1 F C TA E UT O TB U b D D 1 U O FO D 1 D D E K K O GN SF OE_R VD R GN VD CL CL SF NC GN 484746454443424140393837 Q0 136 Q5 Q0b 235 Q5b Q1 334 Q6 Q1b 433 Q6b VDDOA 532 VDDOB Q2 6GND31 Q7 Q2b 7PAD30 Q7b VDDOA 829 VDDOB Q3 928 Q8 Q3b 1027 Q8b Q4 1126 Q9 Q4b 1225 Q9b 131415161718192021222324 D 0 D D 0 b 0 XA XB L0 K 0 L1 D TA GN VD GN SE CL K TB U SE GN U O K_ CL K_ O SF CL CL SF Figure 2. SKY53510 7x7 mm 48-QFN PinoutTable 1. SKY53510 7x7mm 48-QFN Pin DescriptionsPinNameType1Description 1 Q0 O Output Clock 0 2 Q0b O Output Clock 0 (complement) 3 Q1 O Output Clock 1 4 Q1b O Output Clock 1 (complement) Output voltage supply—Bank A (Outputs: Q0 to Q4) 5 VDDOA P Bypass with 0.1 µF capacitor and place as close to the VDDOA pin as possible. 6 Q2 O Output Clock 2 7 Q2b O Output Clock 2 (complement) Output voltage supply—Bank A (Outputs: Q0 to Q4) 8 VDDOA P Bypass with 0.1 µF capacitor and place as close to the VDDOA pin as possible. 9 Q3 O Output Clock 3 10 Q3b O Output Clock 3 (complement) 11 Q4 O Output Clock 4 12 Q4b O Output Clock 4 (complement) 13 GND GND Ground Skyworks Solutions, Inc. • Phone [949] 231-3000 • sales@skyworksinc.com • www.skyworksinc.com 207106A • Skyworks Proprietary Information • Products and Product Information are Subject to Change without Notice 3 August 1, 2025 Document Outline Key Features 1. Pin Descriptions 1.1. SKY53510 7x7 mm 48-QFN Pin Descriptions 1.2. SKY53580 6x6 mm 40-QFN Pin Descriptions 1.3. SKY53540 5x5 mm 32-QFN Pin Descriptions 2. Detailed Description 2.1. Overview 2.2. Block Diagrams 2.3. Modes of Operation 2.3.1. Input Clock Stage 2.3.2. Clock Outputs 3. Applications Information 3.1. Driving Clock Inputs (CLK0/CLK1) 3.2. Crystal Interface (XA/XB) 3.3. Clock Output Termination 3.3.1. DC-Coupled Differential Output Driver Terminations 3.3.2. AC-Coupled Differential Output Driver Terminations 4. Power Supply (VDD and VDDOx) 4.1. Power Supply Sequencing 5. Electrical Specifications 6. Typical Performance Characteristics 7. Package and Handling Information 7.1. 48-QFN Package Diagram 7.2. 40-QFN Package Diagram 7.3. 32-QFN Package Diagram 8. Land Patterns 8.1. 48-QFN Land Pattern 8.2. 40-QFN Land Pattern 8.3. 32-QFN Land Pattern 9. Top Markings 9.1. SKY53510/80/40 Top Markings 10. Ordering Guide 11. Revision History