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參數(shù)資料
| 型號： | TDA7333 |
| 廠商： | 意法半導體 |
| 英文描述： | RDS/RBDS PROCESSOR |
| 中文描述： | 鐵路發(fā)展策略/無線廣播數(shù)據(jù)處理器 |
| 文件頁數(shù)： | 10/21頁 |
| 文件大小： | 656K |
| 代理商： | TDA7333 |
TDA7333
10/21
7.6 Group and block synchronization module
The group and block synchronization module has the following features :
– Hardware group and block synchronization
– Hardware error detection
– Hardware error correction using the quality bit information of the demodulator
– Hardware synchronization flywheel
– TAinformation extraction
– reset by software (ar_res)
Figure 9. Group and block synchronization block diagram
This module is used to acquire group and block synchronization of the received RDS data stream, which is pro-
vided in a modified shortened cyclic code. For the theory and implementation of the modified shortened cyclic
code, please refer to the specification of the radio data system (RDS) EN50067.
It further detects errors in the data stream. Depending on the quality bit information of the demodulator an error
correction is made.
The RDS data bytes are available to the software together with status bits giving an indication on the reliability
of the data.
It also extracts TA information which can be used as interrupt source (cf page 12).
S(4:0)
RDSCLK
RDSDAT
RDSQAL
rds_bd_h,rds_bd_l
rds_corrp
rds_qu
rds_int
RDSDAT(15:0)
Q(3:0)
CP(9:5)
Correct. pat.
Syndrome register
S(9:0)
Correction
logic
Corrected
Data_OK
Syndrom zero
Block
missed
QU(0:3)
RDS block counter
ABH
DBH
BLOCKE detected
Group & Block Synchronization Control Block
set
set
new
Block
available
next
RDS
bit
int
bit_int
T
res
s
A
TTA
read only
read only
read only
read/write
BLOCK A
AR_RES
Quality bit counter
from RDS
Demodulator
T
B
B
B
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| TDA7333013TR | 功能描述:音頻 DSP RDS/RBDS PROCESSOR RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| TDA7333N | 功能描述:音頻放大器 RDS/RBDS processor Demodulation 3.3V RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7333NTR | 功能描述:音頻放大器 RDS/RBDS processor Demodulation 3.3V RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7334 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW NOISE STEREO PREAMPLIFIER |
| TDA7334D | 功能描述:音頻放大器 Stereo Preamplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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