The FSUSB31 is a low-power, single-port, high-speed USB 2.0 switch. Its feature is extremely low on capacitance (CON) of 3.7pF. The wide bandwidth of this device (>720MHz) exceeds the band-width needed to pass the third harmonic, resulting in sig- nals with minimum edge and phase distortion. Superior channel-to-channel crosstalk minimizes interference.
The FSUSB31 is a low‑power, single‑port, high‑speed USB 2.0 switch optimized for 480 Mbps operation. It features very low on‑capacitance (3.7 pF typical) and low on‑resistance (6.5 Ω typical), making it suitable for mobile devices such as cell phones, PDAs, digital cameras, and notebooks. The device includes over‑voltage and power‑off protection and operates over a wide control‑voltage range (2.6 V to 4.3 V).
The datasheet details absolute maximum ratings, recommended operating conditions, DC and AC electrical characteristics, test diagrams, and mechanical drawings for three package options: 8‑lead MicroPak (1.6 × 1.6 mm), 8‑lead US8 (JEDEC MO‑187), and 8‑lead Ultrathin MLP (1.2 × 1.4 mm). It also lists ordering information and trademark/legal notices.
| On‑Capacitance (typical) | 3.7 pF |
|---|---|
| On‑Resistance (typical) | 6.5 Ω |
| Maximum Power Consumption | 1 A |
| Supply Voltage Range | 2.6 V – 4.3 V |
| -3 dB Bandwidth | > 720 MHz |
| Package – MicroPak | 8‑lead, 1.6 × 1.6 mm |
| Package – US8 | 8‑lead, JEDEC MO‑187 |
| Package – Ultrathin MLP | 8‑lead, 1.2 × 1.4 mm |
The typical on‑capacitance is 3.7 pF.
The device can operate up to a supply voltage of 4.3 V.
The FSUSB31 provides a bandwidth greater than 720 MHz.