CXA1498S

CXA1498S/M Recording/Playback Equalizer Amplifier for Stereo Tape Recorder 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 Block Diagram and Pin Configuration (Top View) DECK A EQ PB FB1 (R) PB FB2 (R) REC MUTE REC IN (R) PB IN1 (R) AGC (R) REC OUT (R) PB IN2 (R) PB OUT (R) DECK A/B CXA1498S 30 pin SDIP (Plastic) CXA1498M 30 pin SOP (Plastic) Applications Recording/playback equalizer amplifier, playback mixing amplifier and AGC for a...