MSP3421G MICRONAS [Micronas], MSP3421G Datasheet - Page 81

• Manufacturer Part Number: MSP3421G
• Description: Multistandard Sound Processor Family with Virtual Dolby Surround
• Manufacturer: MICRONAS [Micronas]

PRELIMINARY DATA SHEET
5. Appendix A: Overview of TV-Sound Standards
5.1. NICAM 728
Table 5–1: Summary of NICAM 728 sound modulation parameters
Table 5–2: Summary of NICAM 728 sound coding characteristics
Micronas
Specification
Carrier frequency of
digital sound
Transmission rate
Type of modulation
Spectrum shaping
Roll-off factor
Carrier frequency of
analog sound component
Power ratio between
vision carrier and
analog sound carrier
Power ratio between
analog and modulated
digital sound carrier
Characteristics
Audio sampling frequency
Number of channels
Initial resolution
Companding characteristics
Coding for compressed samples
Preemphasis
Audio overload level
I
6.552 MHz
1.0
6.0 MHz
FM mono
10 dB
10 dB
Values
32 kHz
2
14 bit/sample
near instantaneous, with compression to 10 bits/sample in 32-samples (1 ms) blocks
2’s complement
CCITT Recommendation J.17 (6.5 dB attenuation at 800 Hz)
12 dBm measured at the unity gain frequency of the preemphasis network (2 kHz)
Differentially encoded quadrature phase shift keying (DQPSK)
B/G
5.85 MHz
0.4
5.5 MHz
FM mono
13 dB
7 dB
by means of Roll-off filters
L
5.85 MHz
0.4
terrestrial
10 dB
17 dB
728 kbit/s
6.5 MHz AM mono
cable
16 dB
11 dB
D/K
5.85 MHz
0.4
6.5 MHz
FM mono
13 dB
China/
Hungary
12 dB
MSP 34x1G
Poland
7 dB
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