BL1557 Dual SPDT Analog Switch, 400MHz Bandwidth, QFN10

Shanghai Belling

The BL1557 is a dual SPDT analog switch offering 3.5Ω on-resistance and a 400MHz bandwidth, designed for high-frequency signal routing in portable electronics.
Operating from 1.8V to 5.5V, it is housed in a compact QFN10 (1.8×1.4mm) package for high-density PCB layouts.

Key Specifications

  • Configuration: Dual SPDT (1:2)

  • Supply Voltage (VDD): 1.8V – 5.5V

  • On-Resistance: 3.5Ω

  • Bandwidth: 400MHz

  • Package: QFN10 (1.8×1.4mm)

  • Reference: SGM4717EP

Applications

  • Mobile phones

  • Portable electronic devices

Features

  • High-speed operation

  • Low on-resistance

  • Compact QFN package