SKY13489-001 Buy Now
0.7 to 2.7 GHz SPDT High Power Switch (Single Bit Control) in a WLCSP Package

The SKY13489-001 is a single-pole, double-throw (SPDT) LTE/WCDMA/GSM transmit switch. Switching is controlled by an integrated GPIO interface with a single control pin. Depending on the logic voltage level applied to the control pin, the antenna port is connected to one of the switched RF outputs (RF1 or RF2) through a low insertion loss path, while the path between the antenna port and the other RF port is in a high isolation state.

No external DC blocking capacitors are required as long as no DC voltage is applied on any RF path.

The SKY13489-001 is provided in a compact 6-bump, 1.135 x 0.735 x 0.400 mm Wafer Level Chip Scale Package (WLCSP) that meets requirements for board-level assembly. Bump diameters are 217 microns with a minimum bump pitch of 400 microns.


  • Broadband frequency range: 0.7 to 2.7 GHz
  • Low insertion loss: 0.3 dB @ 2.7 GHz
  • High isolation: 22 dB up to 2.7 GHz
  • No external DC blocking capacitors required
  • Single GPIO control line with VDD voltage regulator:
  • VCTL = 1.35 to 3.00 V
  • VDD = 2.45 to 4.80 V
  • Small, 6-bump WLCSP, 217 μm diameter, 400 μm pitch (1.135 x 0.735 x 0.400 mm) package (MSL1, 260 °C per JEDEC J-STD-020)
Data Sheets SKY13489-001: 0.7 to 2.7 GHz SPDT High Power Switch (Single Bit Control) in a WLCSP Package SKY13489_001_202857D.pdf (363 KB)
ProductName : SKY13489-001
Description (Absorptive/ Reflective) : SPDT (R)
Frequency (GHz) Min. : 0.7
Frequency (GHz) Max. : 2.7
Typ. IL (dB) : 0.25
Typ. Isol. (dB) : 32
Typ. IIP3 (dBm) : Typ IMD3, -120
Typ. IP1 dB (dBm) : 39
Control Logic :
Max. TX Power (W) :
Package : WLCSP, 6-bump
Package (mm) : 0.7 x 1.1 x 0.41
Product Information:
Frequency Max.: ≥1 GHz and <2.9 GHz
Frequency Min.: ≥400 MHz
Function: SPDT / SP2T
Package Type: WLCSP
Status: In Production
Status: New
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