NJM2128

The NJM2128 is a pre & power amplifier with ALC for micro and compact cassette recorders.It contains pre-amplifier, ALC circuit,power amplifiers, and ripple filter.The pre-amplifier amplifies the signal come from magnetic head.The ALC circuit limits the input signal to optimize level in recording.The power amplifiers NJM2128 drive a speaker in play back and the magnetic head in recording.The ripple filter stabilizing the supply voltage to the internal pre-amplifier and an external condenser microphone.

Features of the NJM2128 are:(1)operating voltage:1.8V~7.0V; (2)automatic level control (ALC) limit level=100m Vrms typ(f=lkHz); (3)ripple filter R.R. (ripple rejection)=47dB typ(f=200Hz, C=47 F); (4)bipolar technology; (5)package outline:DMP16.

The absolute maximum ratings of the NJM2128 can be summarized as:(1)supply voltage:+7.0V;(2)storage temperature range:-40 to +125;(3)operating temperature range:-20 to 75 ;(4)PA output peak current:1A;(5)PA input voltage range:±0.4V;(6)power dissipation:300mW.The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s).In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,medical equipment, and safety equipment), safety should be ensured by using semiconductor devices that feature assured safety or by means of users' fail-safe precautions or other arrangement.In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during operation of the user's units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual property claims or any other problems that may result from applications of information, products or circuits described in the datasheets.

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