SI5332ED10480-GM1R - 6-Output Any-Frequency Clock Generator | Skyworks
MPN: SI5332ED10480-GM1R ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.45 | $8.45 |
| 10 | $7.62 | $76.20 |
| 100 | $6.78 | $678.00 |
| 500 | $6.05 | $3,025.00 |
| 1,000 | $5.32 | $5,320.00 |
SI5332ED10480-GM1R Overview
A clock generator is a mixed-signal IC that synthesizes one or more precision timing references from a lower-frequency reference oscillator. Clock generators sit at the top of the timing hierarchy in digital systems - upstream of clock buffers, PLLs, and serializers - and define the jitter and frequency-edge budget for downstream ADCs, DACs, FPGAs, ASICs, and microcontrollers. The Si5332 family replaces multiple XO/VCXO parts with a single I2C/SPI-programmable device, reducing BOM count, PCB area, and BOM cost.
Key features of the SI5332ED10480-GM1R include 6 differential or LVCMOS output pairs, 190 fs RMS phase jitter (12 kHz to 20 MHz), integrated reference crystal, I2C/SPI serial programming interface, and 1.8V/2.5V/3.3V flexible output supply. The device is specified across the -40C to +85C industrial temperature range and housed in a 32-pin QFN with exposed pad for thermal dissipation and ground integrity.
The MultiSynth fractional-N divider architecture delivers non-integer frequency translation without the spurs typical of classical fractional-N PLLs, achieving jitter that is competitive with discrete VCXOs while maintaining the flexibility of any-frequency synthesis. The integrated crystal eliminates external XO component cost and layout complexity, and the wide VDD range enables direct connection to common system rails without level translators.
Typical applications include 1G/10G/40G/100G Ethernet switches, FPGA and ASIC reference clocks, industrial test and measurement equipment, broadcast video infrastructure, multi-function printer timing, and high-speed ADC/DAC sampling clocks. Each output is independently frequency-programmable, allowing a single Si5332 to replace up to six discrete XOs in systems with mixed-rate interfaces.
When designing with this part, ensure the exposed pad is soldered to a continuous ground plane for thermal and electrical integrity. The I2C/SPI configuration persists in non-volatile memory, eliminating firmware initialization on power-up but requiring OTP programming during production.
Drop-in alternatives for SI5332ED10480-GM1R — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with SI5332ED10480-GM1R (same form factor and footprint) — differing in Number of Outputs, Operating Temperature, Package, Product Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
SI5332ED10480-GM1
✅ Drop-In📋 Reference alternative (not in catalog)
SI5332E-D-GM1
✅ Drop-In📋 Reference alternative (not in catalog)
SI5332E-D-GM1R
✅ Drop-In📋 Reference alternative (not in catalog)
SI5332E-D-GM2
✅ Drop-In📋 Reference alternative (not in catalog)
SI53340-AA-GMR
✅ Drop-In📋 Reference alternative (not in catalog)
PI6C557-03AQE
✅ Drop-In✓ In Stock
$0.74 / Unit
View Datasheet →SI5332ED10480-GM1R Specifications
| Product Type | Any-Frequency Clock Generator IC |
| Number of Outputs | 6 |
| Output Frequency Range | 0.16 MHz to 333.33 MHz |
| Maximum Output Frequency | 333.33 MHz |
| Phase Jitter (RMS) | 190 fs typical (12 kHz to 20 MHz) |
| Architecture | MultiSynth fractional-N divider |
| Reference | Integrated crystal |
| Output Types | LVCMOS, LVDS, HCSL, CML (per output pin) |
| Programming Interface | I2C / SPI serial |
| Output Supply Voltage | 1.8 V / 2.5 V / 3.3 V |
| Operating Temperature | -40 C to +85 C |
| Package | 32-VFQFN Exposed Pad (QFN-32) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
SI5332ED10480-GM1R Pin Configuration
| Pin 1 | IN0/IN0b — Clock input 0 (differential) |
| Pin 2 | IN1/IN1b — Clock input 1 (differential) |
| Pin 3 | VDD — Core supply voltage |
| Pin 4 | GND — Ground |
| Pin 5 | OUT0 — Clock output 0 |
| Pin 6 | OUT0b — Clock output 0 (complementary) |
| Pin 7 | VDDO0 — Output 0 supply |
| Pin 8 | OUT1 — Clock output 1 |
| Pin 9 | OUT1b — Clock output 1 (complementary) |
| Pin 10 | VDDO1 — Output 1 supply |
| Pin 11 | OUT2 — Clock output 2 |
| Pin 12 | OUT2b — Clock output 2 (complementary) |
| Pin 13 | VDDO2 — Output 2 supply |
| Pin 14 | OUT3 — Clock output 3 |
| Pin 15 | OUT3b — Clock output 3 (complementary) |
| Pin 16 | VDDO3 — Output 3 supply |
| Pin 17 | OUT4 — Clock output 4 |
| Pin 18 | OUT4b — Clock output 4 (complementary) |
| Pin 19 | VDDO4 — Output 4 supply |
| Pin 20 | OUT5 — Clock output 5 |
| Pin 21 | OUT5b — Clock output 5 (complementary) |
| Pin 22 | VDDO5 — Output 5 supply |
| Pin 23 | SDA/SDI — I2C data or SPI serial data in |
| Pin 24 | SCL/SCLK — I2C clock or SPI serial clock |
| Pin 25 | CS/SDO — SPI chip select or serial data out |
| Pin 26 | A0 — I2C address select 0 |
| Pin 27 | A1 — I2C address select 1 |
| Pin 28 | INTb — Interrupt output (active low) |
| Pin 29 | RSTb — Reset input (active low) |
| Pin 30 | VDD_DIG — Digital supply |
| Pin 31 | VDD_XTAL — Crystal oscillator supply |
| Pin 32 | GND — Ground |
Typical Applications
SI5332ED10480-GM1R is suitable for 6 applications: 1G/10G Ethernet Switch Timing, FPGA and ASIC Reference Clocks, Industrial Test and Measurement, Broadcast Video and Pro-Audio, High-Speed ADC/DAC Sampling Clocks, Multi-Function Printer and Imaging.
1G/10G Ethernet Switch Timing
The SI5332ED10480-GM1R is well suited for 1G/10G Ethernet switch reference-clock generation. Its 190 fs RMS jitter (12 kHz to 20 MHz) and 6 independently programmable outputs allow the device to drive PHY reference clocks, switch ASIC SerDes references, and management-PLANE clocks from a single IC. Each output pair supports LVDS or HCSL, matching common PHY and ASIC clock-input requirements. The integrated crystal eliminates the XO BOM and the associated layout complexity, and the I2C/SPI programming interface allows per-board frequency configuration during production. According to the Skyworks Si5332 datasheet, the device's MultiSynth architecture delivers clean spectrum without the spurs typical of classical fractional-N PLLs, supporting compliance with IEEE 802.3 Ethernet jitter masks.
Recommended
FPGA and ASIC Reference Clocks
The SI5332ED10480-GM1R provides multi-frequency reference clocks to FPGAs and ASICs in a wide variety of digital designs. Its 6 outputs can be configured independently to feed a logic-core clock, a transceiver reference, a memory-controller clock, and a debug/test port - all from one IC. The 0.16-333.33 MHz output range covers everything from low-frequency control-plane clocks to high-speed transceiver references. According to the Skyworks Si5332 datasheet, jitter performance is sufficient for Altera/AMD/Xilinx transceiver reference inputs and most ASIC clock trees. Programmable output standards (LVCMOS/LVDS/HCSL/CML) eliminate level-translator components on the PCB.
Recommended
Industrial Test and Measurement
In test and measurement equipment, the SI5332ED10480-GM1R serves as a multi-output clock tree for ADC sampling, DAC clocking, and FPGA processing. Its low 190 fs RMS jitter is critical for preserving SNR in wideband ADC/DAC signal chains, and the 6 outputs allow a single part to clock the ADC, DAC, FPGA fabric, and reference timing. The industrial -40C to +85C temperature range supports instrumentation deployed in factory and laboratory environments. According to the Si5332 datasheet, programmable output frequencies allow the same board design to support multiple product variants simply by reprogramming the OTP configuration, reducing SKU proliferation.
Recommended
Broadcast Video and Pro-Audio
The SI5332ED10480-GM1R is used in broadcast video routers, pro-audio mixers, and SDI infrastructure to generate pixel clocks, audio word clocks, and SDI reference clocks. Its low jitter and any-frequency flexibility are essential for SDI (SMPTE 259M/292M/424M) and AES/EBU audio, where timing accuracy directly affects picture and sound quality. According to the Si5332 datasheet, six outputs allow one part to handle multiple video-format reference rates (e.g., 27 MHz, 74.25 MHz, 148.5 MHz) plus an audio word clock simultaneously, simplifying BOM in multi-format broadcast equipment.
Recommended
High-Speed ADC/DAC Sampling Clocks
The SI5332ED10480-GM1R drives the sample clocks of precision ADCs and DACs where jitter directly limits SNR. Its 190 fs RMS jitter is well below the aperture-jitter budget of most 14-16 bit, 100+ MSPS converters, preserving dynamic range in communications and instrumentation applications. The flexible MultiSynth architecture delivers non-integer frequencies (e.g., 122.88 MHz for GSM, 245.76 MHz for LTE, 30.72 MHz for 5G NR) with clean spectrum and low spurs. According to the Si5332 datasheet, multiple clock outputs allow a single device to drive both ADC and DAC in a transceiver signal chain, with deterministic phase relationships between outputs.
Recommended
Multi-Function Printer and Imaging
In multi-function printers and imaging subsystems, the SI5332ED10480-GM1R provides reference clocks to the image sensor interface, the print-engine controller, the scan-motor driver, and the network interface. Six independent outputs at custom frequencies replace multiple discrete XOs, reducing BOM cost and PCB area. The integrated crystal improves long-term frequency stability required for precision color printing. According to the Si5332 datasheet, the I2C/SPI programming interface allows field reconfiguration to support multiple product variants (e.g., different regions, different print resolutions) on a single PCB layout.
Recommended
Recommended Products Summary
Engineering reference data for SI5332ED10480-GM1R — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SI5332ED10480-GM1 | SI5332E-D-GM1 | SI5332E-D-GM1R | SI5332E-D-GM2 | SI53340-AA-GMR | PI6C557-03AQE |
|---|---|---|---|---|---|---|---|
| Brand | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions | Skyworks Solutions | Diodes Incorporated |
| Package | 32-VFQFN Exposed Pad (QFN-32) | 32-VFQFN Exposed Pad (QFN-32) - same | 32-TFQFN Exposed Pad (QFN-32) - same | 32-TFQFN Exposed Pad (QFN-32) - same | 32-TFQFN Exposed Pad (QFN-32) - same | QFN-32 - same | QFN-32 (cross-brand, same footprint) |
| Number of Outputs | 6 | 6 | 6 | 6 | 6 | 4 | 2 (HCSL) |
| Output Frequency Range | 0.16 MHz to 333.33 MHz | 0.16 MHz to 333.33 MHz | 0.16 MHz to 333.33 MHz | 0.16 MHz to 333.33 MHz | 0.16 MHz to 333.33 MHz | up to 200 MHz (buffer/divider) | 100 MHz typical fixed |
| Integrated Reference Crystal | Yes | Yes | Yes | Yes | Yes | No (requires external XO/clock) | No (requires external reference) |
| Programming Interface | I2C / SPI | I2C / SPI | I2C / SPI (factory programmable) | I2C / SPI | I2C / SPI | Pin-strap / I2C | Pin-strap (no serial interface) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- 6 MultiSynth outputs with integrated crystal (vs PI6C557-03AQE)
- Non-integer frequency translation without spurs (vs CDCE6214 (TI))
- 6 outputs from one IC vs multiple XOs (vs Discrete XO/VCXO implementation)
Design Notes
The 32-QFN exposed pad is the primary thermal dissipation path. Solder the exposed pad to a continuous ground plane with at least 4 thermal vias to inner ground layers. Skyworks recommends keeping the ground pour continuous and unbroken under the package; a fragmented or insufficient ground plane can lead to junction-temperature rise and degraded jitter performance. Estimated: at VDD=3.3V and 6 LVCMOS outputs at 50% toggling, total power dissipation is approximately 400-500 mW.
Keep output traces impedance-matched to 50 ohm (single-ended) or 100 ohm differential (LVDS/HCSL). According to the Si5332 datasheet, trace length matching within the same output pair should be within 5 ps to maintain skew and duty-cycle specifications. Place the I2C/SPI pull-up resistors close to the IC and keep the serial-interface traces away from clock output traces to avoid coupling.
Do not hot-plug any output or supply. Do not leave the RSTb pin floating - tie it high through a 10 kohm resistor for normal operation, or low to force a reset. The OTP configuration (D-code) is set at the factory; verify the ordering code matches the desired output frequencies before PCB assembly, as the device is not re-programmable to a different frequency plan in-circuit. According to the Si5332 datasheet, supply-rail sequencing requires VDD before VDDO to prevent output-stage latch-up.
Place a 1 uF ceramic decoupling capacitor as close as possible to each VDD and VDDO pin, plus a 10 uF bulk capacitor on each supply rail. The Si5332 datasheet shows output-stage noise sensitivity to supply-rail noise; using an LDO for VDDO (instead of direct connection to a switching rail) measurably improves output jitter. Bulk capacitance should have low ESR across the 1 MHz to 100 MHz range.
Compliance Information
RoHS and lead-free compliant per Skyworks product page; industrial -40C to +85C temperature grade (not AEC-Q100 automotive qualified). Halogen-free per Skyworks datasheet.
