MSP3410B datasheet(12/68 Pages) MICRONAS

12 / 68 page

PRELIMINARY DATA SHEET

MSP 3410 B

ITT Semiconductors

cessed at the same time as NICAM. Note that the NI-

CAM input signals are only available in the MSP 3410 B

version. While processing the adaptive deemphasis, no

dual carrier stereo (German or Korean) or NICAM pro-

cessing is possible. Identification values are not valid ei-

ther.

4.4. Dual Carrier FM Stereo/Bilingual Detection

In the German and Korean TV standard, audio informa-

tion can be transmitted in three modes: Mono, stereo or

bilingual. To obtain information about the current audio

operation mode, the MSP 3410 B detects the so-called

identification signal. Information is supplied via the Ste-

reo Detection Register to an external CCU.

IDENT

Demodu-

lation

Stereo

Detection

Stereo

Detection

Filter

Bilingual

Detection

Filter

Level

Detect

Level

Detect

–

Fig. 4–4: Stereo/bilingual detection

Analog

Inputs

Demodulated

Inputs

SBUS

Inputs

I2S Bus

Inputs

Prescale

Adaptive

Deemphasis

50/75

µs

J17

FM-Matrix

Deemphasis

J17

Loudspeaker

Channel

Matrix

Bass

Treble

Loudness

Spatial Effects

Volume

SCART

Channel

Matrix

Volume

Headphone

Channel

Matrix

Volume

I2S

Channel

Matrix

Loudspeaker L

Loudspeaker R

Headphone L

Headphone R

SCARTL

SCARTR

I2SR

I2SL

Loudspeaker

Outputs

Headphone

Outputs

SCART

Outputs

I2S

Outputs

Balance

Prescale

Quasi-Peak

Detector

SCARTL

SCARTR

NICAMA

NICAMB

SBUS1

SBUS2

SBUS3

SBUS4

I2SL

I2SR

FM1

FM2

Quasi peak readout R

DC level readout FM2

DC level readout FM1

Quasi peak readout L

Beeper

Fig. 4–5: Audio baseband processing (DFP-Firmware)

Note: Actually, the source

of the Quasi-Peak Detector

is always the signal of the

loudspeaker channels.

Internal signal lines (see fig. 4–2)

NICAMA

Prescale

Table 4–1: Some examples for recommended channel assignments for demodulator and audio processing part

Mode

MSP Sound IF-

Channel 1

MSP Sound IF-

Channel 2

FM-

Matrix

Channel-

Select

Channel

Matrix

B/G-Stereo

FM2 (5.74 MHz): 2R

FM1 (5.5 MHz): L+R

B/G Stereo

Speakers: FM

Stereo

B/G-Bilingual

FM2 (5.74 MHz): Sound B

FM1 (5.5 MHz): Sound A

No Matrix

Speakers: FM

H. Phone: FM

Speakers: Sound A

H. Phone: Sound B

NICAM-I-ST/

FM-mono

NICAM (6.552 MHz)

FM (6.0 MHz): mono

No Matrix

Speakers: NICAM

H. Phone: FM

Speakers: Stereo

H. Phone: Sound A

Sat-Mono

not used

FM (6.5 MHz): mono

No Matrix

Speakers: FM

Sound A

Sat-Stereo

7.2 MHz: R

7.02 MHz: L

No Matrix

Speakers: FM

Stereo

Sat-Bilingual

7.38 MHz: Sound C

7.02 MHz: Sound A

No Matrix

Speakers: FM

H. Phone: FM

Speakers: Sound A

H. Phone: Sound B=C

Sat-High Dev.

Mode

don’t care

6.552 MHz

No Matrix

Speakers: FM

H. Phone: FM

Speakers: Sound A

H. Phone: Sound A

MSP3410B Datasheet(PDF) 12 Page - Micronas

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