NJM2775A Series

PRE&HI-Power Amplifier with ALC for Portable TAPE RECORDER

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Description

The NJM2775A is a pre&power amplifier with ALC designed 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 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. The NJM2775A improves high output power compared with the NJM2128. It is suitable for portable tape recorder，and other portable playing back and recording recorder items.

Spec

	Consumer
Supply Voltage	1.8V to 6V
Channel	BTL 1ch(SP) 1ch.(Pre)
Output Power / Po	Typ. 500mW
Output Power / V+	4V
Output Power / RL	8 ohm
Operating Current	9mA typ.
Wide Operating Temperature	-20°C to 75°C
Junction Temp.	125°C
Package	DMP16
Features	Auto level control (ALC) function
Note 1	Automatic Level Control (ALC) Limit Level (200mVrms typ.，at f=1kHz)
Note 2	Ripple Filter R.R.(Ripple Rejection) (47dB typ.，at f=200Hz，C=47µF)

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Stand-by	Mute	Fine Tune Sensitivity

Functional Description

Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
NJM2775AM		DMP16	-	NJM-1-s-fr

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.