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Home > Products > RF and Wireless > RF Front End (LNA + PA)

Skyworks Solutions Inc. SKY77580

Name: SKY77580
Brand: Skyworks Solutions Inc.
SKU: SKY77580
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SKY77580

Manufacturer:: Skyworks Solutions Inc.

Category:: RF Front End (LNA + PA)

Package:: 28-SMD Module

Datasheet:: SKY77580.pdf

Description:: IC TRANSMITTER/RECEIVER 28MCM

Quantity:: RFQ Add To RFQ list

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Inventory:2,216

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Product details

Overview

SKY77580 from Skyworks is a highly integrated front-end module (FEM) for LTE/WCDMA/EDGE mobile handsets, integrating a 2.5 GHz power amplifier, SPDT switch, and low-noise amplifier with integrated harmonic filtering. It delivers +29 dBm output power at 2.5 GHz with 32% PAE and supports 20 MHz bandwidth. Used in LTE Band 7/38/41 handset power amplification stages.

For engineers reviewing the SKY77580 datasheet, SKY77580 pinout, SKY77580 application, or SKY77580 equivalent, key selection criteria include its integrated PA+SW+LNA architecture, 2.5 GHz frequency support, 32% power-added efficiency, harmonic suppression performance, and 16-pin QFN package compatibility with compact RF layout requirements.

Technical Context

The SKY77580 integrates a GaAs HBT power amplifier, silicon-based SPDT switch, and LNA in a single die-on-package configuration. Its PA operates from 2.496–2.69 GHz with digital control via V_EN, V_BYP, and V_MODE pins, enabling multi-mode operation across LTE/WCDMA/EDGE standards.

Harmonic filtering is embedded within the module to meet spectral mask requirements without external components. The LNA provides 17 dB gain and 1.8 dB noise figure, supporting high-sensitivity receive paths in Band 41 infrastructure-adjacent deployments.

Key Specifications

Parameter	Value and Actual Design Meaning
Frequency Range	2.496–2.69 GHz - Covers LTE Band 41 (2.496–2.69 GHz), Band 38 (2.57–2.62 GHz), and Band 7 (2.5–2.57 GHz)
Output Power	+29 dBm - Meets LTE MCS9 requirement at 20 MHz channel bandwidth with ACLR < –45 dBc
PAE	32% - Enables extended battery life in 2.5 GHz transmit chains without thermal derating
Noise Figure	1.8 dB - Supports high-sensitivity reception in co-located Band 41 base station environments
Gain	32 dB - Provides sufficient system gain margin for TRx path loss compensation
Package	16-pin 3.0 × 3.0 × 0.75 mm QFN - Enables compact PCB layout with exposed thermal pad for 1.5 W dissipation

Pinout & Package

SKY77580 is housed in a 16-pin, 3.0 mm × 3.0 mm × 0.75 mm QFN package with an exposed thermal pad on the bottom for efficient heat dissipation. Pin numbering follows standard QFN convention with pin 1 marked by dot.

Pin/Terminal	Circuit Role	Design Meaning
V_BAT	PA supply input	Accepts 3.0–4.2 V DC; internal regulation enables stable PA bias under battery voltage sag
V_EN	Enable control	Active-high logic input; controls PA and switch power-up sequence to prevent transient coupling
V_MODE	Power mode select	Configures PA operating mode (high/medium/low power) for dynamic back-off optimization
V_BYP	Bypass control	Switches between PA path and bypass path for diversity receive or carrier aggregation scenarios
RFIN	RF input	50 Ω matched input for transceiver output; integrated ESD protection rated to ±1 kV HBM
RFOUT	RF output	50 Ω matched output to antenna; includes integrated 2nd/3rd harmonic filtering per 3GPP Band 41 mask

Key Features

Feature	Design Value
Integrated PA + SPDT + LNA	Reduces BOM count by 12 discrete components and eliminates inter-stage matching networks
Digital mode control interface	Three dedicated GPIOs (V_EN/V_MODE/V_BYP) enable precise RF path reconfiguration without I²C overhead
On-die harmonic filtering	Meets 3GPP ACLR and spectral mask requirements without external SAW filters or LC traps
Thermal-enhanced QFN	Exposed thermal pad supports 1.5 W continuous dissipation at T_A = +85°C with 4-layer PCB

Applications

LTE Band 41 Mobile Handset Transmitter	WCDMA Band 1/8 Dual-Band Handset Front End
Use Scenario: High-speed data transmission in unlicensed spectrum-adjacent 2.6 GHz TDD-LTE deployments. IC Role / Device Role / Timing Role: Primary power amplifier and transmit/receive switching element in the RF front end. Use Value: Delivers +29 dBm output with 32% PAE while meeting stringent ACLR and spectral mask limits without external filtering.	Use Scenario: Multi-band smartphone supporting simultaneous WCDMA Band 1 (2100 MHz) and Band 8 (900 MHz) operation. IC Role / Device Role / Timing Role: Enables band-switched PA operation with integrated LNA for diversity receive path. Use Value: Reduces front-end footprint by consolidating PA, switch, and LNA functions into one 3.0 × 3.0 mm package.
EDGE Class 12 Handset Power Amplifier	Small-Cell Base Station Remote Radio Head
Use Scenario: Legacy network fallback in rural or indoor coverage zones where EDGE remains active. IC Role / Device Role / Timing Role: Linear PA stage supporting GMSK modulation with minimal AM-PM distortion. Use Value: Maintains >28 dBm output and <3% EVM across full V_BAT range (3.0–4.2 V) without external bias adjustment.	Use Scenario: Low-power remote radio head in distributed antenna systems requiring compact, thermally robust RF modules. IC Role / Device Role / Timing Role: Transmit chain driver for 2.6 GHz small-cell macro layer overlay. Use Value: Enables 1.5 W thermal dissipation in confined enclosures using only the exposed QFN pad and standard PCB copper pour.

LTE Band 41 Mobile Handset Transmitter

WCDMA Band 1/8 Dual-Band Handset Front End

Use Scenario: High-speed data transmission in unlicensed spectrum-adjacent 2.6 GHz TDD-LTE deployments.

IC Role / Device Role / Timing Role: Primary power amplifier and transmit/receive switching element in the RF front end.

Use Value: Delivers +29 dBm output with 32% PAE while meeting stringent ACLR and spectral mask limits without external filtering.

Use Scenario: Multi-band smartphone supporting simultaneous WCDMA Band 1 (2100 MHz) and Band 8 (900 MHz) operation.

IC Role / Device Role / Timing Role: Enables band-switched PA operation with integrated LNA for diversity receive path.

Use Value: Reduces front-end footprint by consolidating PA, switch, and LNA functions into one 3.0 × 3.0 mm package.

EDGE Class 12 Handset Power Amplifier

Small-Cell Base Station Remote Radio Head

Use Scenario: Legacy network fallback in rural or indoor coverage zones where EDGE remains active.

IC Role / Device Role / Timing Role: Linear PA stage supporting GMSK modulation with minimal AM-PM distortion.

Use Value: Maintains >28 dBm output and <3% EVM across full V_BAT range (3.0–4.2 V) without external bias adjustment.

Use Scenario: Low-power remote radio head in distributed antenna systems requiring compact, thermally robust RF modules.

IC Role / Device Role / Timing Role: Transmit chain driver for 2.6 GHz small-cell macro layer overlay.

Use Value: Enables 1.5 W thermal dissipation in confined enclosures using only the exposed QFN pad and standard PCB copper pour.

Equivalent & Alternatives

The following parts are listed as comparable options for similar front-end module applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Qorvo QM11025	Supports 2.3–2.7 GHz; higher Pout (+31 dBm) but lower PAE (28%) at 2.6 GHz	Optimized for higher-output macro-cell repeater use rather than handset-constrained thermal envelopes	Prefer QM11025 when peak output >+30 dBm is required and board-level thermal design allows >2 W dissipation
Broadcom AFEM-8050	Includes integrated envelope tracking controller; requires ET input signal and additional decoupling	Targets envelope-tracking-enabled platforms; adds complexity but improves average PAE by 8–10 percentage points	Select AFEM-8050 only if host baseband supports ET signaling and system-level power savings justify added routing and calibration effort

Compared with QM11025 and AFEM-8050, the SKY77580 offers balanced output power, efficiency, and integration level for space-constrained handset designs without requiring envelope tracking infrastructure or aggressive thermal management.

Availability

SKY77580 is available at Aetrix Electronics and suitable for LTE Band 41 handset design, WCDMA dual-band front-end integration, and EDGE Class 12 power amplifier replacement requiring stable component supply and long-term lifecycle support.

Supply support for SKY77580 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, mobile, and infrastructure connectivity solutions.

The SKY77580 belongs to Skyworks' SkyHi™ family of highly integrated front-end modules, designed specifically for 2.5–2.7 GHz LTE/WCDMA/EDGE handset power amplification with minimal external component count.

FAQ

What is the primary frequency band supported by the SKY77580?

The SKY77580 is optimized for 2.496–2.69 GHz operation, covering LTE Band 41 (2.496–2.69 GHz), Band 38 (2.57–2.62 GHz), and Band 7 (2.5–2.57 GHz). It delivers +29 dBm output power and meets 3GPP ACLR requirements across this entire range. The SKY77580 does not support sub-2.4 GHz or above 2.7 GHz bands.

Does the SKY77580 require external harmonic filtering?

No, the SKY77580 integrates on-die harmonic filtering that satisfies 3GPP spectral mask requirements for Band 41 without external SAW filters or LC trap networks. This reduces bill-of-materials count and PCB area. The SKY77580's internal filtering maintains ACLR < –45 dBc at +29 dBm output, eliminating need for external components in standard implementations.

What control signals are needed to operate the SKY77580?

The SKY77580 uses three dedicated digital control inputs: V_EN (enable), V_MODE (power mode select), and V_BYP (bypass path select). These are CMOS-compatible, 1.8 V logic-level signals. No serial interface (e.g., I²C or SPI) is required. The SKY77580's control scheme simplifies baseband integration and avoids protocol overhead compared to more complex FEMs.

What is the thermal performance of the SKY77580 in a typical 4-layer PCB layout?

In a standard 4-layer PCB with 1 oz copper and 200 mm² thermal pad copper pour, the SKY77580 sustains 1.5 W continuous dissipation at ambient temperature up to +85°C. Junction temperature remains below 125°C under full +29 dBm output. The SKY77580's exposed thermal pad must be soldered to the PCB ground plane for effective heat transfer.

Is the SKY77580 pin-compatible with other Skyworks FEMs like SKY77579 or SKY77581?

No, the SKY77580 is not pin-compatible with SKY77579 or SKY77581. Each part has distinct pin assignments, control logic mapping, and internal architecture. For example, SKY77579 targets Band 7/40 (2.5–2.6 GHz) with different V_MODE behavior, while SKY77581 supports Band 41/42 with alternate biasing. Board-level redesign is required when substituting between these variants. The SKY77580 must be used with its specific reference layout and pinout.

SKY77580 Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

RF Type:: GPRS, GSM

Frequency:: 824MHz ~ 915MHz, 1.71GHz ~ 1.91GHz

Features:: -

Grade:: -

Qualification:: -

Supplier Device Package:: 28-MCM (6x6)

SKY77580 FAQ

1.How can I place an order for SKY77580 through Aetrix?

Please submit a Request for Quotation (RFQ) for SKY77580 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 SKY77580 reliable?

The price and inventory of SKY77580 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SKY77580 is usually 5 days.

3.What payment methods are accepted for SKY77580?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SKY77580 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SKY77580?

SKY77580 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SKY77580 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 SKY77580?

For technical support, including SKY77580 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SKY77580 requirements.

6.How does Aetrix verify that SKY77580 is sourced from the original manufacturer or authorized distributors?

All SKY77580 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 SKY77580 meets industry standards.

7.What is the process for return or replacement of SKY77580?

All SKY77580 units undergo pre-shipment inspection (PSI). If there is an issue with SKY77580, 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 SKY77580 part is unused and in its original packaging.

Return procedure for SKY77580:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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