400-9933069
gtic@gtic.com
音频开关
GT4798
The GT4798 is an audio headset analog switch that is used to detect 3.5mm accessories and switch SLEEVE and RING2 by external controller. The ground signal is routed through a pair of low-impedance ground FETs (70mΩ TYP), resulting minimal impact on audio crosstalk performance. The ground FETs of the device are designed to allow FM signal pass-through, making it possible to use the ground line of the headset as an FM antenna in mobile audio application.
The GT4798 operates over an ambient temperature range of -40°C to +85°C.
特性
- Ground FET Switches Ron: 70mΩ (TYP)
- High Isolation Microphone Line Switches
- Supports FM Signal Transmission
- Reduction of Click-Pop Noise
- Power Supply Voltage Range: 2.6V to 5.5V
- Total Harmonic Distortion(MIC): 0.01%(TYP)
- Low Current Consumption: 2μA(TYP)
- Operation temperature range: -40°C to 85°C
应用
- Mobile Phones
- Tablet PCs
- Notebook/Ultrabook Computers
