參數(shù)資料
型號: STA400A
廠商: 意法半導(dǎo)體
英文描述: XMRADIO SDARS CHANNEL DECODER
中文描述: XMRADIO衛(wèi)星數(shù)字收音機(jī)信道解碼器
文件頁數(shù): 46/117頁
文件大?。?/td> 910K
代理商: STA400A
STA400A
46/117
TIMINTG
-
8 MSBs of Timing Loop Integrator
This register contains the 8 MSBs of the timing loop integrator. The format is two’s complement.
CARINTG
-
8 MSBs of Carrier Loop Integrator
This register contains the 8 MSBs of the carrier loop integrator. The format is two’s complement.
CARFREQ
-
Locked Carrier Frequency
This register is 28 bit long and is divided into four bytes; CARFREQ0 is the LSB byte, CARFREQ3 is the MSB.
It contains the carrier frequency on which the demodulator is locked. The format is two’s complement.
CN
-
Carrier to Noise Esteem
This register gives the Carrier to Noise Ratio estimation in dB. The number has a fixed point format.
b7
-
b3
:
b2
-
b0
:
Example
:
Integer Part
Fractional Part
CN = ’10010111’ = (100101.11)bin = (37.75)dec => C/N = 37.75dB
FLAG
-
Demodulator Status Register
This is a read only register containing specific status bit of the demodulator.
b7
:
b6
:
LOCK
TIMINTG_CLR 0=Timing Integrator Cleared; 1=Timing Integrator Active
0=Demodulator Locked; 1=Demodulator Unlocked
Type:
SingleByte - R/W
Word Length:
8
Byte Name
Address (Hex)
Bit Map
Reset Value (Hex)
TIMINTG S1/S2
006C/0092
7-0
00
Type:
SingleByte - R/W
Word Length:
8
Byte Name
Address (Hex)
Bit Map
Reset Value (Hex)
CARINTG S1/S2
006D/0093
7-0
00
Type:
MultiBytes - R
Word Length:
28
Byte Name
Address (Hex)
Bit Map
Reset Value (Hex)
CARFREQ3 S1/S2
0071/0097
27-24
--
CARFREQ2 S1/S2
0070/0096
23-16
--
CARFREQ1 S1/S2
006F/0095
15-8
--
CARFREQ0 S1/S2
006E/0094
7-0
--
Type:
SingleByte - R
Word Length:
8
Byte Name
Address (Hex)
Bit Map
Reset Value (Hex)
CN S1/S2
0072/0098
7-0
--
Type:
SingleByte - R
Word Length:
4
Byte Name
Address (Hex)
Bit Map
Reset Value (Hex)
FLAG S1/S2
0073/0099
7-4
--
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