DG2591DN-T1-GE4

Analog Switches, Multiplexers, Demultiplexers Overview

The DG2591DN-T1-GE4 is an audio jack detector and pop noise control switch IC manufactured by Vishay Siliconix. It operates with a single 1.8 V power supply and features a low quiescent current of 2 μA maximum. The device integrates a sense comparator for audio L detection with a threshold of 1.4 V ± 5 %. It includes a MIC bias switch with a maximum on-resistance of 1 Ω to provide quick discharge and clamping capabilities. The component is housed in an ultra-compact miniQFN6 package measuring 1 mm x 1.2 mm, suitable for space-constrained portable electronics.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrated sense comparator for detecting audio jack insertion via DC level sensing at L_Detect and GND_Detect pins
• Automatic logic output signaling to baseband controllers upon earphone presence or absence
• Built-in deglitch circuitry to ensure stable switching operations during mechanical contact transitions
• High electrostatic discharge protection ratings across human body model and IEC standards

Analog Switches, Multiplexers, Demultiplexers Applications

• Cellular phones
• Tablet devices
• Portable media players
• Digital cameras

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix T1-GE4 corresponds to the required tape and reel packaging configuration before placing orders. Confirm that the miniQFN6 footprint dimensions align with the design layout constraints. Ensure voltage levels match the specified 1.8 V operating condition to maintain optimal performance characteristics.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing circuits requiring automatic audio jack detection without external microcontroller intervention. The integrated comparator eliminates the need for additional analog sensing components. Consider the 1 mm x 1.2 mm package size for applications where board real estate is limited. Verify compatibility with the 2.4 V microphone bias voltage if used in conjunction with standard audio interfaces.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG2591 series of specialized analog switches designed specifically for audio interface management. Unlike general-purpose multiplexers, it combines detection logic with switching functions. The DN-T1-GE4 designation indicates the specific miniQFN6 package variant optimized for surface mount assembly in consumer electronic devices requiring compact form factors.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

No direct public substitute part numbers are documented for this specific function and package combination. Alternative solutions may require redesigning the detection circuitry using discrete comparators and switches. Verify pinout compatibility if considering similar audio detection ICs from other manufacturers.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the DG2591 detect an inserted earphone?

The device senses DC levels at the L_Detect and GND_Detect pins. When an earphone is plugged in, these voltages drop, causing the OUT pin to pull low and the MIC switch to turn off.

What is the purpose of the MIC pin?

The MIC pin acts as a switch input that connects the microphone bias line to ground when no earphone is detected, providing a path for discharging and clamping.

What are the ESD protection ratings for this component?

It offers Human Body Model protection greater than 5 kV, Charged Device Model protection greater than 1 kV, and IEC 61000-4-2 air discharge protection greater than 15 kV.