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SKY65111-348LF

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Skyworks Solutions RF Amplifiers, TQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SKY65111-348LF

Skyworks Solutions · RF Amplifiers · TQFN-16-EP(3x3)

SKY65111-348LF from Skyworks Solutions, in a TQFN-16-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin that must be connected to the PCB common ground plane with the lowest possible impedance.
2 RF IN input RF input port, which the application circuit matches with a DC-blocking capacitor and a series capacitor (C25) placed as close to the pin as possible to achieve return loss better than -11 dB across 800-1100 MHz.
3 GND power_in Ground pin that must be connected to the PCB common ground plane with the lowest possible impedance.
4 VCC1 power_in DC supply input (collector bias) for the first gain stage, with a supply range of 2.5 V to 5 V (3.5 V nominal) and a 5.5 V absolute maximum for VCC and VREF.
5 VAPC1 input Analog power control voltage for gain stages 1 and 2, with a nominal range of 2.6 V to 2.8 V, 0 V forcing those stages into standby, and a 3.0 V absolute maximum.
6 VAPC2 input Analog power control voltage for gain stage 3, with a nominal range of 2.6 V to 2.8 V, 0 V placing that stage into standby, and a 3.0 V absolute maximum.
7 VREF power_in Bias reference voltage for gain stages 2 and 3, to be operated over the same voltage range as VCC with a nominal value of 3.5 V.
8 GND power_in Ground pin that must be connected to the PCB common ground plane with the lowest possible impedance.
9 RF OUT/VCC3 output RF output and DC bias input (collector) for the third gain stage, fed through a transmission line and requiring the specified bypass and output matching capacitors; the datasheet does not state an electrical limit for this pin.
10 RF OUT/VCC3 output RF output and DC bias input (collector) for the third gain stage, fed through a transmission line and requiring the specified bypass and output matching capacitors; the datasheet does not state an electrical limit for this pin.
11 RF OUT/VCC3 output RF output and DC bias input (collector) for the third gain stage, fed through a transmission line and requiring the specified bypass and output matching capacitors; the datasheet does not state an electrical limit for this pin.
12 RF OUT/VCC3 output RF output and DC bias input (collector) for the third gain stage, fed through a transmission line and requiring the specified bypass and output matching capacitors; the datasheet does not state an electrical limit for this pin.
13 OPEN unconnected No connection; leave this pin open and do not connect it to ground.
14 GND power_in Ground pin that must be connected to the PCB common ground plane with the lowest possible impedance.
15 VCC2 power_in DC supply input (collector bias) for the second gain stage, with the same supply range as VCC (2.5 V to 5 V, 3.5 V nominal).
16 VCC2 power_in DC supply input (collector bias) for the second gain stage, with the same supply range as VCC (2.5 V to 5 V, 3.5 V nominal).
17 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Skyworks Solutions
Package TQFN-16-EP(3x3)
Category RF And Wireless
Pins 17

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC 2.5 3.5 5 V 2
Power control voltage VAPC 0 2.7 2.8 V 2
Critical gain /S21/ 36 dB 902-928 MHz, -30 dBm input 2
Saturated power PSAT 30 dBm 915 MHz 2
Frequency range F 800 1100 MHz 3
Supply voltage (VCC & VREF) 5.5 V 2
Power control voltage (VAPC1 & VAPC2) 3 V 2
RF input power 10 dBm 2
Operating temperature -40 85 °C 2
Storage temperature -65 85 °C 2

CAD (KiCad official)

  • Symbol: SKY65111-348LF
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: TQFN-16-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: sky65111-348lf-etched.step / sky65111-348lf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sky65111-348lf.step / sky65111-348lf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Skyworks Solutions datasheet (16 pp, sha256 0144527df4eb87b6, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF