參數(shù)資料
型號： SAA7282ZP
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： Terrestrial Digital Sound Decoder TDSD2
中文描述： SPECIALTY CONSUMER CIRCUIT, PDIP32
封裝： 0.400 INCH, PLASTIC, SDIP-32
文件頁數(shù)： 9/25頁
文件大?。?/td> 110K
代理商： SAA7282ZP
July 1993
9
Philips Semiconductors
Product specification
Terrestrial Digital Sound Decoder (TDSD2)
SAA7282
Slave Transmitter
The slave transmitter formats are illustrated thus:
S SLAVE_ADDR.1 A STATUS_BYTE NA P
In this format the bus master reads the STATUS_BYTE once.
S SLAVE_ADDR.1 A STATUS_BYTE A ERROR_BYTE NA P
In this format the bus master reads two bytes of STATUS_BYTE and ERROR_BYTE.
S SLAVE_ADDR.1 A STATUS_BYTE A ERROR_BYTE A AD_BYTE_0 A AD_BYTE_1 NA P
In this format the bus master reads four bytes of STATUS_BYTE, ERROR BYTE and two additional bytes, AD_BYTE_0
and AD_BYTE_1. The additional data bytes contain the eleven additional data bits AD0 to AD10 together with
information regarding their status.
Where NA = no acknowledge.
Table 5
Data byte formats.
BYTE
D7
D6
D5
D4
D3
D2
D1
D0
STATUS_BYTE
ERROR_BYTE
AD_BYTE_0
AD_BYTE_1
PONRES
E7
AD7
OVW
S/M
E6
AD6
SAD
D/S
E5
AD5
0
VDSP
E4
AD4
CI2
RSSF
E3
AD3
CI1
OS
E2
AD2
AD10
AM
E1
AD1
AD9
CFC
E0
AD0
AD8
The bits may be defined as follows:
PONRES
This bit is a power-on reset detection bit. It is set HIGH
after a power-on reset or supply reduction and is cleared
LOW when the STATUS_BYTE is read.
S/M (stereo/mono indication)
S/M = logic 1 indicating an incoming stereo transmission.
S/M = logic 0 indicating that the incoming transmission is
not stereo.
D/S (dual/single mono indication)
D/S = logic 1 indicating an incoming dual mono
transmission.
D/S = logic 0 indicating that the incoming transmission is
not dual mono.
VDSP
This bit indicates that the decoded signal is valid digital
sound. When VDSP = logic 0 the incoming transmission
carries either a 704 kbit/s transparent data channel or a
currently undefined format and the device automatically
switches to FM regardless of RSSF.
RSSF
RSSF is the reserve sound switching flag indication equal
to the C4 bit in the NICAM transmission. RSSF = logic 1
when the FM sound signal is carrying the same
programme material as the digitally modulated carrier
(specifically the M1 signal in the event of a dual mono
transmission). RSSF = logic 0 when the FM signal is not
reproduced within the digital signal.
OS
This bit provides an active LOW indication that the decoder
is out of sync. If OS = logic 1 the decoder is frame
synchronized and has obtained C0 (16 frame) sync.
If OS = logic 0, the decoder is out of sync and the indicator
bits are as given in Table 6.
AM
This bit indicates when the automuting function has
switched from the NICAM sound to the conventional FM
sound. This enables the software controller to display the
relevant information to the customer, for example, on
screen display. If AM bit = logic 0 no switching has been
carried out by the automuting function. If AM bit = logic 1
then the automuting function has switched to the FM
inputs.
相關PDF資料
PDF描述
SAA7283ZP Terrestrial Digital Sound Decoder TDSD3
SAA7283 Terrestrial Digital Sound Decoder TDSD3
SAA7283GP Terrestrial Digital Sound Decoder TDSD3
SAA7284GP Terrestrial digital sound decoder for conventional intercarrier PLL-IF systems
SAA7384 Terrestrial digital sound decoder for conventional intercarrier PLL-IF systems
相關代理商/技術參數(shù)
參數(shù)描述
SAA7283 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Terrestrial Digital Sound Decoder TDSD3
SAA7283GP 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Terrestrial Digital Sound Decoder TDSD3
SAA7283ZP 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Terrestrial Digital Sound Decoder TDSD3
SAA7284 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Terrestrial digital sound decoder for conventional intercarrier PLL-IF systems
SAA7284GP 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Terrestrial digital sound decoder for conventional intercarrier PLL-IF systems
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