MM1434

MITSUMI Q Xpander Processors MM1434 Q Xpander Processors Monolithic IC MM1434 Outline From ordinary stereo signal input, each of the sound sources is expanded spatially to reproduce sound with a sense of immediacy. Algorithms developed by Q Sound are faithfully implemented in an IC produced by Mitsumi. Features 1. Sound spreading is easily modified using an external VR. 2. Few external components required through use of active filters based on Mitsumi's bipolar technology. 3. Low cost achieved through improvements from previous model (MM1354) to VA. Package SOP-16A (MM1434XFBE) Applications Sound enhancement processor. Pin Assignment 1 2 16 15 14 13 12 11 10 9 3 4 1 2 3 4 5 6 7 8 SOP-16A 5 6 7 8 RIN VREF S/Q FC SPC QIN ROUT GND 9 10 11 12 13 14 15 16 LOUT DET QF4 QF3 QF2 QF1 LIN VCC Block Diagram MITSUMI Q Xpander Processors MM1434 Pin Description Pin No. 1 15 Pin name RIN LIN Functions Input pin R Input pin L Equivalent circuit diagram 2 VREF DC reference voltage pin 3 S/Q STEREO/Q Sound Switch pin 4 FC Filter frequency control pin 5 SPC Spread control pin MITSUMI Q Xpander Processors MM1434 Pin No. 6 Pin name QIN Functions Q Sound input pin Equivalent circuit diagram 7 9 ROUT LOUT Output pin R Output pin L 8 GND GND pin 10 DET VCC off detect pin 11 12 13 14 QF4 QF3 QF2 QF1 Filter pin Qf4 Filter pin Qf3 Filter pin Qf2 Filter pin Qf1 16 VCC Supply voltage pin MITSUMI Q Xpander Processors MM1434 Absolute Maximum Ratings Item Stora...