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)： 27/40頁(yè)
文件大?。?/td> 182K
代理商： SAA7284
1996 Oct 24
27
Philips Semiconductors
Preliminary specification
Terrestrial digital sound decoder for
conventional intercarrier PLL-IF systems
SAA7284
Digital de-emphasis
DEV
deviation from ideal
±
0.09
dB
FM audio inputs
FML
AND
FMR (
SELECTED VIA
I
2
C-
BUS CONTROL
)
Z
i
input impedance
0 dB FM attenuation
set
12 dB FM
attenuation set
programmable in
1 dB steps
40
k
160
k
G
output gain
0 to 12
dB
G
a
V
ain(rms)
S/N
THD
output gain accuracy
input voltage level (RMS value)
signal-to-noise ratio
total harmonic distortion
0.5
90
0
95
85
+0.5
1.1
70
dB
V
dB
dB
EXT audio input
EXTL
AND
EXTR (
SELECTED VIA
I
2
C-
BUS CONTROL
)
Z
i
G
G
a
V
ain(rms)
S/N
THD
input impedance
output gain
output gain accuracy
input voltage level (RMS value)
signal-to-noise ratio
total harmonic distortion
90
40
0
0
95
85
1.1
70
k
dB
dB
V
dB
dB
NICAM internal DAC (selected via I
2
C-bus control)
V
o(rms)
NICAM output voltage level
(RMS value)
total harmonic distortion plus
noise
digital silence level
audio silence level
0 dB; V
ROA
= 2.5 V
0.94
1
1.06
V
THD+N
notes 6 and 7
80
75
dB
DIGS
AUDIOS
MUTE on
SILENCE on = 0
80
80
dB
dB
Audio outputs
OPL
AND
OPR
C
L
R
L
CHM
PSRR
output load capacitance
output load resistance
channel matching
power supply rejection ratio
3
0.5
0
40
300
+0.5
pF
k
dB
dB
0 dB, 1 kHz
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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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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