MITSMI MM1434XFBE Datasheet

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

Pin Assignment

Block Diagram

Sound enhancement processor.

SOP-16A

13 762458

16 13 1115 14 12910

1 RIN 9 LOUT

2 VREF 10 DET

3 S/Q 11 QF4

4 FC 12 QF3

5 SPC 13 QF2

6 Q

IN 14 QF1

7 R

OUT 15 LIN

8 GND 16 VCC

MITSUMI

Q Xpander Processors MM1434

Pin No. Pin name Functions Equivalent circuit diagram

1 R

IN

15 LIN

Input pin R

Input pin L

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

Pin Description

MITSUMI

Q Xpander Processors MM1434

Pin No. Pin name Functions Equivalent circuit diagram

6 Q

IN Q Sound input pin

7 ROUT

9 LOUT

Output pin R

Output pin L

8 GND

GND pin

10 DET

VCC off detect pin

11 QF4

12 QF3

13 QF2

14 QF1

Filter pin Qf4

Filter pin Qf3

Filter pin Qf2

Filter pin Qf1

16 V

CC Supply voltage pin