MSP3405D Datasheet, PDF (22/71 Pages) List of Unclassifed Manufacturers – Multistandard Sound Processors

MSP 34x5D
PRELIMINARY DATA SHEET
6.4. Demodulator Write Registers for Short-Programming: Functions and Values
In the following, the functions of some registers are explained and their (default) values are defined:
6.4.1. Demodulator Short-Programming
Table 6–3: MSP 34x5D Demodulator Short-Programming
TV-Sound Standard
Demodulator Short-Programming 0020_hex
Internal Setting
Description
Code
(hex)
AD_CV²⁾
(see Table 6–5)
MODE_
REG²⁾
(see
Table 6–8)
DCO1
(MHz)
DCO2
(MHz)
FIR1/2
Coefficients
Identifica-
tion
Mode
Autodetection
0001
Detects and sets one of the standards listed below, if available. Results are to be
read out of the demodulator read register ”Result of Autodetection” (Section 6.6.1.)
M Dual-FM
0002 AD_CV-FM M1
B/G Dual-FM
D/K1 Dual-FM
D/K2 Dual-FM
0003
0004
0005
AD_CV-FM M1
AD_CV-FM M1
AD_CV-FM M1
4.72421 4.5
5.74218 5.5
6.25781 6.5
6.74218 6.5
see Table 6–11:
Terrestrial TV-
Standards
Reset, then
Standard M
Reset, then
Standard
B/G
0006/ reserved for future Dual FM Standards
0007
AUTO_
FM/AM
NICAM-Modes for MSP 3415D only; MSP 3405D responds with FM/AM Mono
B/G-NICAM-FM 0008 AD_CV-FM M2
5.85
5.5
L-NICAM-AM
I-NICAM-FM
0009
000A
AD_CV-AM M3
AD_CV-FM M2
5.85
6.5
6.552
6.0
see Table 6–11:
Terrestrial TV- ¹⁾
Standards
D/K-NICAM-FM 000B AD_CV-FM M2
5.85
6.5
>000B reserved for future NICAM Standards
1) _{corresponds to the actual setting of AUTO_FM (Address = 0021hex)}
2) _{Bits of AD_CV or MODE_REG, which are not affected by the short-programming, must be transmitted sepa-}
rately if their reset status does not fit.
Note: All parameters in the DSP section (Audio Baseband Processing), except the identification mode register,
are not affected by the Demodulator Short-Programming . They still have to be defined by the control processor.
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Micronas