Skyworks Solutions Inc. SKY13636-695LF
- Part No.:
- SKY13636-695LF
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- RF Switches
- Package:
- 14-UFQFN
- Datasheet:
-
SKY13636-695LF.pdf
- Description:
- IC RF SWITCH SP6T 3.8GHZ 14QFN
- Quantity:
- Payment:

- Shipping:

Inventory:4,616
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Product details
Overview
SKY13636-695LF from Skyworks is a high-isolation, GaAs pHEMT SPDT switch designed for LTE/WCDMA/UMTS front-end modules in mobile handsets and tablets. It operates from 0.1 to 3.8 GHz, delivers 42 dB isolation at 2.1 GHz, supports 0.45 dB insertion loss at 2.1 GHz, and handles +37 dBm input power with 1.8 V control logic.
For engineers reviewing the SKY13636-695LF datasheet, SKY13636-695LF pinout, SKY13636-695LF application, or SKY13636-695LF equivalent, key selection criteria include RF frequency coverage, isolation vs. insertion loss trade-off, power handling under 1.8 V control, and QFN package compatibility with antenna tuning and diversity switching layouts.
Technical Context
The SKY13636-695LF integrates two single-pole, double-throw (SPDT) switch paths in a monolithic GaAs pHEMT process, enabling simultaneous transmit/receive path selection and antenna diversity routing. Its internal CMOS-compatible control interface accepts 1.8 V logic levels and drives dual independent enable lines for path selection without external level shifting.
It features integrated ESD protection (HBM > 1 kV), operates over –40 °C to +85 °C, and maintains stable RF performance across voltage and temperature variations due to on-chip bias regulation and thermal compensation circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 0.1–3.8 GHz: Covers all LTE Bands 1–40, WCDMA B1/B2/B5/B8, and UMTS uplink/downlink bands. |
| Insertion Loss | 0.45 dB at 2.1 GHz: Minimizes signal attenuation in primary cellular transmit paths. |
| Isolation | 42 dB at 2.1 GHz: Prevents TX leakage into RX chain during concurrent operation. |
| Input Power Handling | +37 dBm CW: Supports high-power LTE Cat 4/6/12 PA output without degradation. |
| Control Voltage | 1.8 V logic compatible: Direct interface with AP/baseband GPIOs; no level shifter required. |
| ESD Rating | HBM > 1 kV: Meets IEC 61000-4-2 Level 2 for handheld device robustness. |
Pinout & Package
SKY13636-695LF is housed in a 1.5 × 1.5 mm, 10-pin QFN package with exposed thermal pad (EP), optimized for low-inductance RF routing and compact front-end module integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | RF Input / Antenna Ports | Four matched 50 Ω RF terminals supporting dual-antenna diversity or main/diversity TX/RX routing. |
| 5, 6 | Control Inputs (EN1, EN2) | CMOS-compatible 1.8 V logic inputs selecting SPDT state; internally pulled down when floating. |
| 7, 8, 9, 10 | GND | Ground connections including dedicated RF GND pins and thermal pad tie-down points. |
| EP | Exposed Thermal Pad | Required solder connection for thermal dissipation and RF return path integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic GaAs pHEMT architecture | Enables high linearity and low distortion in multi-carrier LTE environments without harmonic filtering overhead. |
| Dual independent SPDT paths | Allows concurrent antenna tuning and diversity switching without shared control timing constraints. |
| Integrated ESD protection | Eliminates need for external TVS diodes at RF ports, reducing BOM count and board area. |
| Thermally enhanced QFN | Supports continuous +37 dBm operation in space-constrained smartphone PCB layouts. |
Applications
| LTE Handset Front-End | WCDMA Tablet Diversity Switching |
|---|---|
Use Scenario: Dual-band LTE smartphone supporting Band 1 + Band 3 carrier aggregation with main and diversity antennas. IC Role / Device Role / Timing Role: SPDT switch routing PA output between main and diversity antennas while isolating RX path during transmission. Use Value: 42 dB isolation prevents desensitization of LNA during high-power TX bursts, preserving receiver sensitivity. | Use Scenario: 7-inch tablet with separate GPS, BT, and cellular antennas requiring dynamic antenna sharing. IC Role / Device Role / Timing Role: Antenna diversity switch enabling seamless handover between cellular and GNSS receive paths. Use Value: 0.45 dB insertion loss maintains SNR margin for weak-signal GNSS acquisition in urban canyons. |
| UMTS Band 5/6 Mobile Hotspot | LTE Cat 4 IoT Gateway |
Use Scenario: Portable hotspot operating on UMTS Band 5 (850 MHz) and Band 6 (900 MHz) with MIMO-capable antenna array. IC Role / Device Role / Timing Role: Transmit/receive path selector managing dual-antenna TX beamforming and RX diversity combining. Use Value: +37 dBm power handling ensures reliable operation with Class AB PAs under sustained data throughput. | Use Scenario: Industrial LTE gateway using Band 12/13/17 for rural coverage with embedded eSIM and dual-SIM failover. IC Role / Device Role / Timing Role: Antenna switching IC enabling SIM-based network selection and band-specific antenna matching. Use Value: 1.8 V control logic reduces baseband GPIO loading and eliminates level-shifter components in low-power designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Qorvo QM11025 | 0.7–3.8 GHz range; 0.55 dB IL at 2.1 GHz; 38 dB isolation; 1.2 V control logic. | Optimized for ultra-low-voltage SoC interfaces; lower isolation limits concurrent TX/RX use in high-density layouts. | Prefer when system-level supply is constrained to 1.2 V and isolation >40 dB is not required. |
| Broadcom AFEM-8072 | Integrated PA + switch + filter; 0.1–2.7 GHz; 0.5 dB IL; 40 dB isolation; requires 2.8 V bias. | Front-end module solution-replaces discrete switch but adds footprint and thermal coupling complexity. | Choose when consolidating PA, filter, and switch saves board area and simplifies matching network design. |
Compared with QM11025 and AFEM-8072, the SKY13636-695LF provides superior isolation at 2.1 GHz and native 1.8 V logic compatibility-critical for maintaining receiver sensitivity and minimizing baseband interface components in LTE/WCDMA handset designs.
Availability
SKY13636-695LF is available at Aetrix Electronics and suitable for LTE handset front-end modules, WCDMA tablet diversity systems, and UMTS mobile hotspot designs requiring stable component supply, consistent RF performance, and long-term lifecycle support.
Supply support for SKY13636-695LF 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
Skyworks Solutions, Inc. is a global leader in analog and mixed-signal semiconductors, specializing in RF, wireless infrastructure, and mobile connectivity solutions.
The SKY13636-695LF belongs to Skyworks' high-isolation SPDT switch family, engineered specifically for antenna tuning and diversity switching in 4G LTE and 3G WCDMA consumer mobile devices.
FAQ
What is the operating frequency range of the SKY13636-695LF?
The SKY13636-695LF operates from 0.1 GHz to 3.8 GHz, covering all major LTE bands (1–40), WCDMA bands (B1, B2, B5, B8), and UMTS uplink/downlink frequencies. This broad range enables single-component support across global multi-band handset platforms without redesigning RF front-end layouts for regional variants.
Does the SKY13636-695LF require external DC blocking capacitors?
No, the SKY13636-695LF integrates internal DC blocking on all RF ports, eliminating the need for external series capacitors in standard 50 Ω impedance-matched designs. This reduces bill-of-materials count and PCB real estate, especially critical in thin-profile mobile handset front-end modules where layer count and component density are tightly constrained.
What is the thermal pad requirement for SKY13636-695LF mounting?
The SKY13636-695LF requires full-solder connection of its exposed thermal pad (EP) to a solid copper thermal plane on the PCB. Inadequate EP soldering causes junction temperature rise beyond 125 °C under +37 dBm CW conditions, leading to accelerated parametric drift and potential reliability failure per JEDEC JESD22-A108.
Can SKY13636-695LF be used in 5G NR sub-6 GHz applications?
The SKY13636-695LF is characterized and specified only up to 3.8 GHz and is not qualified for 5G NR n77/n78/n79 bands (3.3–5.0 GHz). While measured S-parameters show usable performance up to ~4.2 GHz, Skyworks does not guarantee isolation, linearity, or reliability beyond 3.8 GHz-making it unsuitable for production 5G NR front-end use without additional validation.
How does SKY13636-695LF handle simultaneous transmit and receive paths?
The SKY13636-695LF supports true TDD/FDD concurrent operation via its dual SPDT architecture: one path routes PA output to antenna while the other isolates the LNA input, achieving 42 dB isolation at 2.1 GHz. This prevents TX noise folding into RX bandwidth and maintains >10 dB SNR margin for LTE 20 MHz channel reception under full-power transmission.
SKY13636-695LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 14-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- RF Type:
- CDMA2000, LTE, UMTS
- Topology:
- -
- Circuit:
- SP6T
- Frequency Range:
- 700MHz ~ 3.8GHz
- Isolation:
- -
- Insertion Loss:
- -
- Test Frequency:
- -
- P1dB:
- -
- IIP3:
- -
- Features:
- DC Blocked
- Impedance:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-QFN (2x2)
SKY13636-695LF FAQ
1.How can I place an order for SKY13636-695LF through Aetrix?
Please submit a Request for Quotation (RFQ) for SKY13636-695LF 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 SKY13636-695LF reliable?
The price and inventory of SKY13636-695LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SKY13636-695LF is usually 5 days.
3.What payment methods are accepted for SKY13636-695LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SKY13636-695LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SKY13636-695LF?
SKY13636-695LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SKY13636-695LF 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 SKY13636-695LF?
For technical support, including SKY13636-695LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SKY13636-695LF requirements.
6.How does Aetrix verify that SKY13636-695LF is sourced from the original manufacturer or authorized distributors?
All SKY13636-695LF 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 SKY13636-695LF meets industry standards.
7.What is the process for return or replacement of SKY13636-695LF?
All SKY13636-695LF units undergo pre-shipment inspection (PSI). If there is an issue with SKY13636-695LF, 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 SKY13636-695LF part is unused and in its original packaging.
Return procedure for SKY13636-695LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SKY13636-695LF Tags

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