MSP4458 datasheet(70/85 Pages) MICRONAS

70 / 85 page

MSP 44x8G

PRELIMINARY DATA SHEET

Micronas

5.2. A2-Systems

Table 5–3: Key parameters for A2 Systems of Standards B/G, D/K, and M

Characteristics

Sound Carrier FM1

Sound Carrier FM2

TV-Sound Standard

B/G

D/K

B/G

D/K

Carrier frequency in MHz

5.5

6.5

4.5

5.7421875

6.2578125

6.7421875

4.724212

Vision/sound power difference

13 dB

20 dB

Sound bandwidth

40 Hz to 15 kHz

Preemphasis

µs75 µs50 µs75 µs

Frequency deviation (nom/max)

±27/±50 kHz

±17/±25 kHz

±27/±50 kHz

±15/±25 kHz

Transmission Modes

Mono transmission

mono

Stereo transmission

+R)/2

−R)/2

Dual sound transmission

language A

language B

Identification of Transmission Mode

Pilot carrier frequency

54.6875 kHz

55.0699 kHz

Max. deviation portion

±2.5 kHz

Type of modulation / modulation depth

AM / 50%

Modulation frequency

mono: unmodulated

stereo: 117.5 Hz

dual:

274.1 Hz

149.9 Hz

276.0 Hz

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