The NEDSP1962-KBD amplified DSP noise cancelling module offers up to 40 dB of noise reduction and 65 dB of tone reduction. It is designed to be easily retrofitted into various extension speakers or older-style radios and transceivers. The module comes pre-wired and includes an onboard power amplifier for seamless integration into existing equipment. Control of all functions is managed through the pre-wired keyboard switch assembly. Utilizing a powerful programmable DSP audio processing chip, this module ensures exceptional sound quality with a complete audio signal chain and digital interfaces, all housed within a flexible digital processing architecture.

Regarding DC characteristics, the NEDSP1962-KBD module operates within a supply voltage range of 10 V to 18 V. The quiescent current ranges from 5.4 mA to 7 mA under specified test conditions. With the DSP activated without load or signal, the quiescent current increases from 70 mA to 80 mA. The module can handle a maximum audio current of 400 mA. Regarding audio characteristics, the output power ranges from 5 W to 7 W, depending on the supply voltage. Input sensitivity for a 4 Ω load varies from 100 mV to 400 mV, with different power outputs and load conditions. Additionally, the module boasts an efficiency of over 80% at specific operating conditions.