Performance characteristics
Operating voltage range (2.7 to 4.5V)
Current consumption (when V+=2.7V, generally 2.2mA)
Current consumption in standby mode (maximum 1μmA)
Maximum output voltage (when THD=0.1%, generally -1.5dBV)
Built-in gain switching function (typically 13dB/typically 29dB)
Built-in standby function
Power ripple suppression terminal (when Gv=13dB, generally 95dB)
Bipolar technology
Package (SSOP14)
summary
NJM2173 is a low-voltage microphone amplifier designed for portable audio equipment. It is equipped with terminals for suppressing power ripple during battery use, and realizes an energy-saving design during standby. In addition, it has a 2-step gain switching function for external recording level switching, so external parts are reduced and portable audio equipment is easier to use. When the gain is switched, very low impact noise is achieved. This product is suitable for portable MD, portable CD and other microphone amplifier applications.
