MSP3415G ETC, MSP3415G Datasheet - Page 73

• Manufacturer Part Number: MSP3415G
• Description: MSP 34x5G Multistandard Sound Processor Family
• Manufacturer: ETC

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
near instantaneous, with compression to 10 bits/sample in 32-samples (1 ms) blocks
+12 dBm measured at the unity gain frequency of the preemphasis network (2 kHz)
Values
32 kHz
2
14 bit/sample
2’s complement
CCITT Recommendation J.17 (6.5 dB attenuation at 800 Hz)
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 34x5G
Poland
7 dB
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