MSP34X0G Datasheet, PDF (11/96 Pages) Micronas – Multistandard Sound Processor Family

PRELIMINARY DATA SHEET
MSP 34x0G
Table 2–1: Performed actions of the Automatic Sound Selection
Selected TV Sound Standard
Performed Actions
B/G-FM, D/K-FM, M-Korea,
and M-Japan
Evaluation of the identification signal and automatic switching to mono, stereo, or bilingual. Preparing four
demodulator source channels according to Table 2–2. Identification is acquired after 500 ms.
B/G-NICAM, L-NICAM, I-NICAM, Evaluation of NICAM-C-bits and automatic switching to mono, stereo, or bilingual. Preparing four
and D/K-NICAM
demodulator source channels according to Table 2–2. NICAM detection is acquired within 150 ms.
In case of bad or no NICAM reception, the MSP switches automatically to FM/AM mono and switches
back to NICAM if possible. A hysteresis prevents periodical switching.
B/G-FM, B/G-NICAM
or
D/K1-FM, D/K2-FM, D/K3-FM,
and D/K-NICAM
Automatic searching for stereo/bilingual-identification in case of mono transmission. Automatic and non-
audible changes between Dual-FM and FM-NICAM standards while listening to the basic FM-Mono sound
carrier.
Example: If starting with B/G-FM-Stereo, there will be a periodical alternation to B/G-NICAM in the
absence of FM-Stereo/Bilingual or NICAM-identification. Once an identification is detected, the MSP
keeps the corresponding standard.
BTSC-STEREO, FM Radio
Evaluation of the pilot signal and automatic switching to mono or stereo. Preparing four demodulator
source channels according to Table 2–2. Detection of the SAP carrier. Pilot detection is acquired after
200 ms.
BTSC-SAP
In the absence of SAP, the MSP switches to BTSC-Stereo if available. If SAP is detected, the MSP
switches automatically to SAP (see Table 2–2).
Table 2–2: Sound modes for the demodulator source channels with Automatic Sound Select
Source Channels in Automatic Sound Select Mode
Broadcasted
Sound
Standard
Selected
MSP Standard
Code³⁾
Broadcasted
Sound Mode
FM/AM
(source select: 0)
Stereo or A/B
(source select: 1)
Stereo or A
(source select: 3)
Stereo or B
(source select: 4)
M-Korea
B/G-FM
D/K-FM
M-Japan
B/G-NICAM
L-NICAM
I-NICAM
D/K-NICAM
D/K-NICAM
(with high
deviation FM)
02
03, 08¹⁾
04, 05, 07, 0B¹⁾
30
08, 03²⁾
09
0A
0B, 04²⁾, 05²⁾
0C
MONO
Mono
STEREO
Stereo
BILINGUAL:
Languages A and B
Left = A
Right = B
NICAM not available or analog Mono
error rate too high
MONO
analog Mono
STEREO
analog Mono
BILINGUAL:
Languages A and B
analog Mono
Mono
Stereo
Left = A
Right = B
analog Mono
Mono
Stereo
A
analog Mono
Mono
Stereo
B
analog Mono
NICAM Mono
NICAM Mono
NICAM Stereo
NICAM Stereo
Left = NICAM A NICAM A
Right = NICAM B
NICAM Mono
NICAM Stereo
NICAM B
20, 21
MONO
Mono
Mono
Mono
Mono
STEREO
Stereo
Stereo
Stereo
Stereo
20
BTSC
MONO+SAP
STEREO+SAP
Mono
Stereo
Mono
Stereo
Mono
Stereo
Mono
Stereo
21
MONO+SAP
Left = Mono
Left = Mono
Mono
SAP
Right = SAP
Right = SAP
STEREO+SAP
Left = Mono
Right = SAP
Left = Mono
Right = SAP
Mono
SAP
FM Radio
40
MONO
Mono
Mono
Mono
Mono
STEREO
Stereo
Stereo
Stereo
1) _{The Automatic Sound Select process will automatically switch to the mono compatible analog standard.}
2) _{The Automatic Sound Select process will automatically switch to the mono compatible digital standard.}
3) _{The MSP Standard Codes are defined in Table 3–7 on page 22.}
Stereo
MICRONAS INTERMETALL
11