Key Specifications

 

The UM3699A are dual independent ultra low R_ON DPDT analog switches. These devices are designed for low operating voltage, high current switching of speaker output for cell phone applications. They can switch a balanced stereo output and can handle a balanced microphone/speaker/ring tone generator in a monophone mode. The UM3699A have no internal shunt resistors, which make it compatible for switching data lines that keep a specific voltage when the NO or NC terminals are not connected, avoiding power loss on the shunt resistors. The devices also have a break-before-make feature that further reduces popping.

 

 

- Single Supply Operation: 1.65V to 5.5V

- Function Directly from Battery

- Maximum Breakdown Voltage: 6 V

- Low Static Power

- Tiny 3.0mm×3.0mm QFN16 Pb−Free Package

 

- Cell Phone Speaker/Microphone Switching

- Ring-tone Chip/Amplifier Switching

- Four Unbalanced (Single−Ended) Switches

- Stereo Balanced (Push−Pull) Switching

 

 
                          (Top View)

IN	S1	S2
H	ON	OFF
L	OFF	ON