MM1454 データシートの表示（PDF） - Mitsumi

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MM1454

Q Surround Processor Monolithic IC

Mitsumi 

MITSUMI

Q Surround Processor MM1454

* Note 1: 1 Input voltage amplitude when output total higher harmonic distortion is 1%. However, the signals

input to SG1 and SG2 must be the same phase (phase difference 0 degrees).

* Note 2: 2 Input voltage amplitude when f = 1kHz and output total higher harmonic distortion is 1%. However,

the signals input to SG1 and SG2 must be reverse phase (phase difference 180 degrees).

* Note 3: 3 Voltage when B/Q pin (Pin 3) is considered to be H (Q Surround mode).

* Note 4: 4 Voltage when B/Q pin (Pin 3) is considered to be L (by pass mode).

* Note 5: 5 Current that flows in to B/Q pin (Pin 3) when Vbyp = 5V.

* Note 6: 6 Current that flows out of B/Q pin (Pin 3) when Vbyp = 0V.

* Note 7: 7 The mute signal for turning off the power amp power supply is output to Pin 4. On this IC, it is

recommended that the pop noise generated during power supply fall be muted by turning off the

power amp connected to the final stage of MM1454 before turning off the IC power supply.

Tvoff

VCC=9V

VCC waveform (16PIN)

0V

Vdeth

DET pin waveform (4PIN)

Vdet 1

* Note 8: 8 Defined as the ratio between Pin 6 output signal and Pin 7 output signal when a signal is input to

SG1.

* Note 9: 9 Defined as the ratio between Pin 7 output signal and Pin 6 output signal when a signal is input to

SG2.

Block Diagram

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