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Skyworks Solutions Inc. SL2309SC-1
- Part No.:
- SL2309SC-1
- Manufacturer:
- Skyworks Solutions Inc.
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SL2309SC-1.pdf
- Description:
- IC BUFFER 140MHZ 9CH 3.3V 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,261
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Product details
Overview
SL2309SC-1 from Silicon Laboratories is a 16-pin SOIC zero-delay buffer IC with PLL-based clock distribution, supporting 10–100 MHz operation (standard drive), ≤150 ps output-to-output skew, ≤140 ps cycle-to-cycle jitter, and 3.3 V supply. It delivers nine synchronized clock outputs (4+4+1) for high-speed timing in printers, digital copiers, and network infrastructure.
For engineers reviewing the SL2309SC-1 datasheet, SL2309SC-1 pinout, SL2309SC-1 application, or SL2309SC-1 equivalent, key selection criteria include input frequency range under 15 pF load, tri-state control via S1/S2 pins, SpreadThru™ SSC pass-through capability, and industrial-grade thermal resistance compatibility.
Technical Context
The SL2309SC-1 integrates an on-chip PLL that locks to CLKIN and uses internal feedback from CLKOUT to achieve zero input-to-output delay. Its dual-bank architecture (Bank A: CLKA1–CLKA4; Bank B: CLKB1–CLKB4) enables independent tri-state control per bank via S1 and S2 inputs.
Operation supports three functional modes: full PLL mode (S2=0, S1=0), Bank-A-only mode (S2=0, S1=1), and PLL bypass mode (S2=1, S1=0), where outputs directly follow CLKIN without PLL processing - disabling input frequency detection and enabling DC-to-max-frequency operation per drive level.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 10–100 MHz at 3.3 V, 15 pF load (standard drive -1); higher frequencies require -1H variant. |
| Cycle-to-Cycle Jitter | ≤150 ps max at 66 MHz, 15 pF, standard drive - ensures stable timing margin in synchronous logic. |
| Output-to-Output Skew | ≤150 ps max across all nine outputs - critical for simultaneous sampling in multi-lane interfaces. |
| Power Supply | 3.3 V ±10% - regulated internally to 1.8 V for PLL stability; decoupling requires 0.1 µF capacitor per VDD pin. |
| Supply Current | 26 mA max at 66 MHz, all outputs active - enables low-power clock fanout in embedded systems. |
| Input Detection | Auto-shutdown to <12 µA if CLKIN is DC or floating - prevents spurious output during power-up or fault conditions. |
| Package | 16-pin SOIC (150-mil), commercial grade (0°C to 70°C) - compatible with standard PCB assembly processes. |
Pinout & Package
SL2309SC-1 is housed in a 16-pin SOIC (150-mil) package with exposed pad not present; thermal resistance θJA = 120°C/W (still air). Pin functions are validated per Silicon Labs Rev 2.0 datasheet (May 2008).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CLKIN | Reference clock input | Weak pull-down (250 kΩ); triggers PLL lock or bypass mode based on S1/S2 state. |
| 2–3,14–15 CLKA1–CLKA4 | Bank A clock outputs | Tri-statable via S1/S2; matched loading required for zero delay and minimal skew. |
| 6–7,10–11 CLKB1–CLKB4 | Bank B clock outputs | Independent tri-state control; same drive strength and timing specs as Bank A. |
| 16 CLKOUT | Internal PLL feedback output | Connected to CLKIN internally; load adjustment here fine-tunes input-to-output delay. |
| 4,13 VDD | 3.3 V power supply | Dual VDD pins reduce IR drop; each requires local 0.1 µF decoupling. |
| 5,12 GND | Power ground | Dual GND pins improve return path integrity for low-noise clock distribution. |
| 8 S2, 9 S1 | Mode select inputs | Weak pull-up (250 kΩ); decode four states including PLL bypass and full tri-state. |
Key Features
| Feature | Design Value |
|---|---|
| SpreadThru™ PLL | Passes spread-spectrum modulation (SSCG) from CLKIN to all outputs without degradation - reduces EMI in DTV and PC platforms. |
| Select-mode tri-state | S1/S2 pins enable dynamic power reduction by disabling unused banks - cuts jitter and current draw in partial-load configurations. |
| Zero-delay architecture | Adjustable input-to-output delay via CLKOUT load tuning - achieves precise phase alignment across multiple clock domains. |
| Low-power shutdown | Draws ≤12 µA when CLKIN is invalid - eliminates need for external enable logic in sleep-aware systems. |
| Load-matched skew control | Output-to-output skew ≤150 ps only when all outputs share identical capacitive load - guides PCB layout for timing-critical applications. |
Applications
| Printers and MFPs | Digital Copiers |
|---|---|
Use Scenario: Synchronizing image sensor readout, print engine motors, and USB/Ethernet interface clocks in multi-function peripherals. IC Role / Device Role / Timing Role: Zero-delay buffer distributing one master oscillator to nine subsystems while maintaining sub-150 ps skew. Use Value: Eliminates inter-subsystem timing misalignment that causes image banding or data corruption during high-speed scanning/printing. | Use Scenario: Coordinating document feeder timing, laser diode pulsing, and memory controller clocks in high-volume digital reproduction systems. IC Role / Device Role / Timing Role: PLL-based clock fanout IC providing phase-aligned clocks to real-time imaging pipelines and storage interfaces. Use Value: Enables deterministic latency between scan capture and page rendering - essential for consistent copy quality at 60+ ppm. |
| PCs and Workstations | Routers and Switches |
Use Scenario: Distributing reference clocks to PCIe slots, SATA controllers, and USB hubs on desktop motherboard designs. IC Role / Device Role / Timing Role: Low-jitter clock buffer delivering nine synchronized outputs from single crystal source. Use Value: Meets PCIe Gen2/Gen3 jitter budgets (<1.0 ps RMS) when loaded with 15 pF and properly decoupled. | Use Scenario: Driving clock inputs for multiple Ethernet PHYs, packet processors, and DDR memory interfaces in Layer 2/3 switching hardware. IC Role / Device Role / Timing Role: High-drive zero-delay buffer ensuring simultaneous clock edge arrival across distributed ASICs. Use Value: Reduces bit-error rate in 1 GbE links by minimizing clock domain crossing uncertainty between MAC and PHY layers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zero-delay clock buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT5V9885BGI | 8-output, 3.3 V, 10–133 MHz; no SpreadThru™; higher typical jitter (200 ps) | Lacks SSC pass-through; unsuitable for EMI-sensitive DTV or laptop platforms requiring spread spectrum. | Choose when fewer outputs suffice and SSC compatibility is not required. |
| ICS8302AM-01LFT | 9-output, 3.3 V, 10–125 MHz; no PLL bypass mode; fixed 1.5 ns input-to-output delay | Cannot operate in non-zero-delay mode; lacks S1/S2 tri-state flexibility for partial-load power savings. | Prefer when deterministic fixed delay is acceptable and dynamic bank control is unnecessary. |
Compared with SL2309SC-1, IDT5V9885BGI offers lower channel count and no spread-spectrum support, while ICS8302AM-01LFT provides fixed delay instead of adjustable zero-delay - making SL2309SC-1 uniquely suited for EMI-constrained, multi-bank, phase-tunable clock distribution.
Availability
SL2309SC-1 is available at Aetrix Electronics and suitable for printers and MFPs, digital copiers, and network infrastructure equipment requiring stable component supply and legacy-compatible timing solutions.
Supply support for SL2309SC-1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Silicon Laboratories Inc. is a U.S.-based semiconductor company specializing in timing, MCU, and wireless solutions, with headquarters in Austin, Texas.
The SL2309 product line delivers low-skew, low-jitter clock distribution ICs optimized for high-speed digital systems including office automation, computing, and communications infrastructure.
FAQ
What is the maximum operating frequency of the SL2309SC-1 under standard drive conditions?
The SL2309SC-1 supports up to 100 MHz at 3.3 V with 15 pF load in standard drive (-1) configuration. At 30 pF load, the maximum drops to 66 MHz. These limits are defined in the switching specifications table of the Rev 2.0 datasheet and apply specifically to the SL2309SC-1 variant, which uses the standard drive option and commercial temperature grade.
Does the SL2309SC-1 support spread-spectrum clocking (SSC)?
Yes, the SL2309SC-1 implements SpreadThru™ technology, allowing spread-spectrum clock signals applied to CLKIN to be passed through the PLL to all nine outputs without distortion of spread percentage, profile, or modulation frequency. This feature is explicitly documented for the SL2309 family and confirmed for SL2309SC-1 in the General Description section of the datasheet.
How does the SL2309SC-1 achieve zero input-to-output delay?
The SL2309SC-1 achieves zero delay by using CLKOUT as internal PLL feedback. Delay is adjusted by matching capacitive load on CLKOUT to that on CLKA/B outputs; increasing CLKOUT load adds delay, decreasing it reduces delay. This mechanism is described in the "Zero Delay and Skew Control" section and applies directly to the SL2309SC-1's SOIC packaging and drive characteristics.
What happens to the SL2309SC-1 outputs when CLKIN is disconnected or held static?
When CLKIN is DC (GND or VDD) or floating, the SL2309SC-1 detects loss of valid clock and forces all nine outputs into high-impedance (Hi-Z) state while shutting down the PLL. Supply current drops to ≤12 µA (C-grade), as specified in the DC Electrical Specifications table - a behavior confirmed for SL2309SC-1 in the "Input Frequency Detection" section.
Can the SL2309SC-1 be used in industrial temperature environments?
No, the SL2309SC-1 is rated for commercial temperature range only (0°C to 70°C), as indicated in the Ordering Information table where "SC" denotes SOIC commercial grade. For industrial operation (–40°C to +85°C), the SL2309BSI-1 or SL2309SI-1 variants must be selected - the SL2309SC-1 itself is not qualified for extended temperature use.
SL2309SC-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- -
- PLL:
- Yes with Bypass
- Input:
- Clock
- Output:
- LVCMOS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:9
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 140MHz
- Divider/Multiplier:
- No/No
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
SL2309SC-1 FAQ
1.How can I place an order for SL2309SC-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SL2309SC-1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SL2309SC-1 reliable?
The price and inventory of SL2309SC-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SL2309SC-1 is usually 5 days.
3.What payment methods are accepted for SL2309SC-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SL2309SC-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SL2309SC-1?
SL2309SC-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SL2309SC-1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SL2309SC-1?
For technical support, including SL2309SC-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SL2309SC-1 requirements.
6.How does Aetrix verify that SL2309SC-1 is sourced from the original manufacturer or authorized distributors?
All SL2309SC-1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SL2309SC-1 meets industry standards.
7.What is the process for return or replacement of SL2309SC-1?
All SL2309SC-1 units undergo pre-shipment inspection (PSI). If there is an issue with SL2309SC-1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SL2309SC-1 part is unused and in its original packaging.
Return procedure for SL2309SC-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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