Description

The CXA1498S/M is a bipolar IC designed as equalizer amplifier for tape redorder recording/playback. This IC is particularly well-suited for double cassette deck applications. An on-chip filter serves to greatly reduce the number of external parts.

Features

• Recording equalizer amplifier × 2

(Monolithic filter eliminates the need for external resonance circuit)

• AGC (automatic gain control) × 2

• Playback equalizer amplifier × 2

(Variable resistor eliminates the need for external feedback resistor)

• Electronic switch for playback head (Changes between A and B decks)

• Electronic switch for tape equalization (120µs/70µs) (Independently for A and B decks)

• Electronic switch for metal tapes

• Electronic switch for normal/high speed dubbing (Effective for both REC EQ and PB EQ)

• Recording mute function (Soft mute is possible through use of an external time constant circuit)

• DC controllable for fade IN/OUT (Controls recording mute function)

• Playback mixing output pin provided (For tune selection)

• Use of this IC simplifies the construction of double cassette dubbing system

Applications

Recording/playback equalizer amplifier, playback mixing amplifier and AGC for analog stereo tape recorders