M62460 application circuit

M62460 is the latest device developed by Mitsubishi Company. It adopts an 80-pin flat package. Compared with the earlier product M69032P
, it contains 16K RAM , eliminates the need for external delay circuits, and uses a single-chip microcomputer serial data control interface. The peripheral circuit
is very simple.
    Figure 9-34 is a typical application diagram of the M62460. The
    M62460 has the following four working modes:
    (1) Dolby directional logic decoding mode: In this mode, the M62460 can realize all
functions , and the delay time is 15.4ms. , 20ms, 28_6ms adjustable in three gears, the power of the center channel and surround channel
is adjustable from 0 to - 31dB
    (2) Space surround mode: There are three modes for users to choose: disco, hall, and live.
    (3) Karaoke mode: Its delay is adjustable in two levels: 147-Sms and 196.6ms, and the delay volume is from 1. . ~
10 3dB adjustable o
    ("Through-through mode: This mode does not do any processing on the input signal and passes through the output.