MSP3400CPP 查看數據表（PDF） - Micronas

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MSP3400CPP

Multistandard Sound Processor

Micronas 

MSP 3400C

PRELIMINARY DATA SHEET

7.1.9. Channel Matrix Modes (see also Table 4–1)

Loudspeaker channel

matrix

Headphone channel

matrix

SCART channel

matrix

I2S channel matrix

Quasi-peak detector-

matrix

SOUNDA / LEFT /

MSP-IF-CHANNEL2

SOUNDB / RIGHT /

MSP-IF-CHANNEL1

STEREO

MONO

SUM/DIFF

AB_XCHANGE

INVERT_B

0008hex

0009hex

000ahex

000bhex

000chex

0000 0000

RESET

0001 0000

0010 0000

0011 0000

0100 0000

0101 0000

0110 0000

L

L

L

L

L

00hex

10hex

20hex

30hex

40hex

50hex

60hex

The sum/difference mode can be used together with the

quasi-peak detector to determine the sound material

mode. If the difference signal on channel B (right) is near

to zero, and the sum signal on channel A (left) is high,

the incoming audio signal is mono. If there is a significant

level on the difference signal, the incoming audio is ste-

reo.

7.1.10. SCART Prescale

Volume Prescale

SCART

OFF

0 dB gain (2 VRMS in-

put to digital full scale)

+14 dB gain

(400 mVRMS input to

digital full scale)

000dhex

0000 0000

RESET

0001 1001

0111 1111

H

00hex

19hex

7Fhex

7.1.11. FM Prescale

Volume Prescale FM

(normal FM mode)

OFF

Maximum Volume

(28 kHz deviation 1)

recommended FIR-

bandwidth: 130 kHz)

Deviation 50 kHz1)

recommended FIR-

bandwidth: 200 kHz

Deviation 75 kHz1)

recommended FIR-

bandwidth: 200 or

280 kHz

Deviation 150 kHz1)

recommended FIR-

bandwidth: 380 kHz

Maximum deviation

192 kHz1)

recommended FIR-

bandwidth: 380 kHz

Prescale for adaptive

deemphasis WP1

recommended FIR-

bandwidth: 130 kHz

Volume Prescale FM

(High Deviation

Mode)

Deviation 150 kHz1)

recommended FIR-

bandwidth: 380 kHz

Maximum deviation

384 kHz1)

recommended FIR-

bandwidth: 500 kHz

000ehex

0000 0000

RESET

0111 1111

0100 1000

0011 0000

0001 1000

0001 0011

0001 0000

000ehex

0011 0000

0001 0011

H

00hex

7Fhex

48hex

30hex

18hex

13hex

10hex

H

30hex

13hex

For the High Deviation Mode, the FM prescaling values

can be used in the range between 13hex to 30hex. Please

consider the internal reduction of 6 dB for this mode. The

FIR-bandwidth should be selected to 500 kHz.

1) Given deviations will result in internal digital full scale

signals. Appropriate clipping headroom has to be set by

the customer. This can be done by decreasing the listed

values by a specific factor.

36

Micronas

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