參數(shù)資料
型號(hào): STV8237
廠商: 意法半導(dǎo)體
英文描述: Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders
中文描述: 數(shù)字音頻解碼器/處理器為A2和麗音電視/錄像機(jī)
文件頁(yè)數(shù): 84/149頁(yè)
文件大?。?/td> 2775K
代理商: STV8237
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Register List
STV82x7
84/149
Note:
The time-out default value is optimum and does not normally need to be changed.
AUTOSTD_STATUS
Detection Standard Status Register
ZWEITON_TIME[2:0]
100
Zweiton Detection Time-out
000: forbidens
001: 512 ms
010: 768 ms
011: 1024 ms
100: 1280 ms (Default)
101: 1536 ms
110: 1792 ms
111: 2040 ms
Address: 8Eh
Type: R
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
STEREO_ID
STEREO_OK
MONO_OK
AUTOSTD_ON
STEREO_SID[1:0]
MONO_SID[1:0]
Bit Name
Reset
Function
STEREO_ID
0
Stereo Mode Detection flag activated when a stereo standard coming from the demodulator
selected on Loudspeakers output. Stereo transmission modes are:
- Zweiton Stereo Carrier AND Stereo Modulation (indifferently German or Korean standard)
- NICAM stereo with backup (CBI = 1000)
- NICAM stereo with no backup (CBI = 0000)
AUTOSTD_ON
0
Automatic Standard Recognition System Status
0: Automatic Standard Recognition System is OFF
1: Automatic Standard Recognition System is ON
STEREO_SID[1:0]
00
Identification of the detected TV sound standard. See
Table 19
.
MONO_SID[1:0]
00
STEREO_OK
0
STEREO STANDARD DETECTED
MONO_OK
0
MONO STANDARD DETECTED
Table 19: TV Sound Standards
System
Mono Sound
(MHz)
MONO_SID
[1:0]
LDK_SW
DK_DEV
[1:0]
Stereo Sound
(MHz)
STEREO_SID
[1:0]
M/N
4.5 (FM 27k)
00
X
XX
4.724 (Zweiton A2+)
00
B/G
5.5 (FM 50k)
01
X
XX
5.85 (NICAM 40%)
00
X
XX
5.742 (Zweiton A2)
01
I
6.0 (FM 50k)
10
X
XX
6.552 (NICAM 100%)
00
Bit Name
Reset
Function
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