SN65EL11DGK Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN65EL11DGK is a PECL/NECL 1:2 fanout buffer and low-skew clock driver from Texas Instruments in an 8-pin SOIC package. It features differential ECL inputs, two true outputs, and supports NECL mode with VEE from -4.2V to -5.7V for high-speed clock distribution. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- SN65EL11DGK Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- PECL/NECL 1:2 fanout buffer with differential ECL-compatible inputs for high-speed clock signal distribution with minimal additive jitter
- Low-skew dual output clock driver enabling precise synchronous signal routing in high-frequency communications and computing systems
- Supports both PECL (VCC = 3.3V or 5V) and NECL mode (VCC = 0V, VEE = -4.2V to -5.7V) for flexible power supply configurations
Applications
The SN65EL11DGK is used in high-speed clock distribution networks for telecommunications, networking, and high-performance computing systems where low-skew differential ECL signals must be distributed to two loads. It is well suited for driving clock lines in SONET/SDH equipment, Ethernet line cards, and SERDES reference clock trees where signal integrity is critical.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | NECL MODE: VCC = 0V WITH VEE = -4.2V TO -5.7V |
| Family | 65EL |
| Input Conditioning | DIFFERENTIAL |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Logic IC Type | LOW SKEW CLOCK DRIVER |
| Number of Functions | 1 |
| Number of True Outputs | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 26mA |
| Prop. Delay@Nom-Sup | 0.3ns |
| Propagation Delay (tpd) | 0.3ns |
| Qualification Status | Not Qualified |
| Same Edge Skew-Max (tskwd) | 0.015ns |
| Supply Voltage-Max (Vsup) | 5.7V |
| Supply Voltage-Min (Vsup) | 4.2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | 5A991.B.1 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN65EL11DGK:
Low Skew Clock Driver, 65EL Series, 2 True Output(s), 0 Inverted Output(s), PDSO8
Frequently Asked Questions
What logic standard does the SN65EL11DGK use?
The SN65EL11DGK uses ECL (Emitter-Coupled Logic) compatible differential signaling, supporting both PECL (Positive ECL) with a positive supply and NECL (Negative ECL) mode using a negative supply of -4.2V to -5.7V with VCC at 0V. This flexibility allows integration with various ECL-based system designs.
How many outputs does the SN65EL11DGK provide?
The SN65EL11DGK is a 1:2 fanout buffer providing two true differential ECL outputs from a single differential input. Both outputs are matched for low skew, making this device ideal for distributing a single reference clock to two downstream devices with minimal timing difference.
What package does the SN65EL11DGK come in?
The SN65EL11DGK is housed in an 8-pin SOIC (Small Outline Integrated Circuit) surface-mount package. This compact package is standard for board-level high-speed signal distribution and is compatible with standard SMT assembly processes on high-frequency PCBs.
What are typical applications for the SN65EL11DGK?
Typical applications include clock distribution in SONET/SDH equipment, Ethernet switch line cards, high-speed SERDES reference clock networks, and test and measurement equipment. Its low-skew 1:2 fanout capability makes it useful wherever a single differential ECL clock must drive two synchronous loads with matched timing.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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