Overview
The FSA2276UMX is a high-performance, Double-Pole Double-Throw (DPDT) analog switch produced by onsemi. It is designed with negative swing audio capability, making it suitable for high-fidelity audio applications. The device operates over a wide VDD range of 1.65 V to 5.5 V and is fabricated using sub-micron CMOS technology to achieve fast switching speeds. It features ultra-low audio on-resistance (RON) of 0.5 Ω (typical) at 1.8 V VDD and is designed for break-before-make operation to minimize pop and click during switching.
Key Specifications
| Parameter | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| VDD Operating Range | - | 1.65 | - | 5.5 | V |
| RON | VDD = 1.8 V, ISW = 100 mA, VSW = -3 V to 3 V | - | 0.5 | 1.0 | Ω |
| THD+N | VDD = 1.8 V, 2 V RMS, 20 kΩ Load, f = 1 kHz | -115 | - | - | dB |
| XTALK | VDD = 1.8 V, 1 V RMS, 50 Ω Load, f = 1 kHz | -122 | - | - | dB |
| Off Isolation | VDD = 1.8 V, 1 V RMS, 50 Ω Load, f = 1 kHz | -115 | - | - | dB |
| Package Type | - | - | - | - | 12-Lead UMLP (1.8 mm x 1.8 mm) |
Key Features
- VDD Operating Range: 1.65 V to 5.5 V
- External Capacitor Connection for Pop and Click Noise Suppression
- Noise Suppression and Power-Off Protection on Common Ports
- Ultra-low Audio RON of 0.5 Ω (typical) at 1.8 V VDD
- THD+N = -115 dB; 2 V RMS, 20 kΩ Load; f = 1 kHz
- XTALK = -122 dB at 1 V RMS, 50 Ω Load; f = 1 kHz
- Off Isolation = -115 dB at 1 V RMS, 50 Ω Load; f = 1 kHz
- 12-Lead UMLP Package (1.8 mm x 1.8 mm)
Applications
The FSA2276UMX is suitable for various applications, including:
- Mobile Phones
- Tablets
- Notebook PCs
- Media Players
- Docking Stations
- TVs
- Set-Top Boxes
- LCD Monitors
Q & A
- What is the operating voltage range of the FSA2276UMX?
The FSA2276UMX operates over a VDD range of 1.65 V to 5.5 V.
- What is the typical on-resistance (RON) of the FSA2276UMX?
The typical on-resistance (RON) is 0.5 Ω at 1.8 V VDD.
- How does the FSA2276UMX minimize pop and click during operation?
The FSA2276UMX minimizes pop and click using an external capacitor (CEXT) to control the turn-on ramp time.
- What is the THD+N specification of the FSA2276UMX?
The THD+N specification is -115 dB for 2 V RMS, 20 kΩ Load, at a frequency of 1 kHz.
- What is the package type of the FSA2276UMX?
The FSA2276UMX comes in a 12-Lead UMLP package with dimensions of 1.8 mm x 1.8 mm.
- What are some common applications for the FSA2276UMX?
Common applications include mobile phones, tablets, notebook PCs, media players, docking stations, TVs, set-top boxes, and LCD monitors.
- Does the FSA2276UMX have power-off protection?
Yes, the FSA2276UMX features power-off protection on common ports.
- What is the typical break-before-make time for the FSA2276UMX?
The typical break-before-make time is dependent on the external capacitor used but is generally in the range of microseconds.
- How does the FSA2276UMX achieve fast switching speeds?
The FSA2276UMX is fabricated with sub-micron CMOS technology to achieve fast switching speeds.
- What is the off-isolation specification of the FSA2276UMX?
The off-isolation specification is -115 dB at 1 V RMS, 50 Ω Load, at a frequency of 1 kHz.
