參數(shù)資料
型號(hào): SAA7284
廠商: NXP Semiconductors N.V.
英文描述: Terrestrial digital sound decoder for conventional intercarrier PLL-IF systems
中文描述: 地面數(shù)字音頻解碼器為傳統(tǒng)載波鎖相環(huán)中頻系統(tǒng)
文件頁(yè)數(shù): 15/40頁(yè)
文件大小: 182K
代理商: SAA7284
1996 Oct 24
15
Philips Semiconductors
Preliminary specification
Terrestrial digital sound decoder for
conventional intercarrier PLL-IF systems
SAA7284
Table 8
Action of pulling MUTE pin/I
2
C-bus bit LOW
Note
1.
With MUTE pin/i
2
C-bus bit pulled LOW. If user has manually selected FM or NICAM inputs, no switching will occur.
Table 9
FM attenuation control
Slave transmitter format
The slave transmitter format is shown in Table 10.
Table 10
Slave transmitter format
TRANSMITTED
C4 BIT (RSSF)
C4OV
TRANSMISSION MODE
OUTPUT ACTION
(1)
MUTEDEF = 1
MUTEDEF = 0
1
1 or 0
stereo/mono/dual mono with L and R = M1
mute digital data
and switch to FM
no action
no action
mute digital data
and switch to FM
mute digital data
only
no action
no action
mute digital data
only
1
0
0
1 or 0
1
0
dual mono with M2 selected in either L or R
all modes
all modes
FM ATTENUATION (dB)
FM3
FM2
FM1
FM0
0
1
2
3
4
5
6
7
8
9
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
10
11
12
Not defined
Not defined
Not defined
START
slave_addr
ACK
data_byte
ACK
n-bytes
data_byte
ACK
STOP
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