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參數(shù)資料
| 型號： | 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) |
| 文件頁數(shù)： | 24/40頁 |
| 文件大?。?/td> | 182K |
| 代理商： | SAA7284 |
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1996 Oct 24
24
Philips Semiconductors
Preliminary specification
Terrestrial digital sound decoder for
conventional intercarrier PLL-IF systems
SAA7284
I
REF
OUTPUT
V
o
C
i
I
sink
output signal voltage
input capacitance
output sink current
defined by V
RCF
0.5V
DDF2
250
10
V
pF
μ
A
with external 10 k
resistor from pin to
V
SSF2
Signal path analog inputs
DQPSK
AND
MIXREF
R
i
V
iDQPSK(rms)
NICAM input signal voltage V
nom
(RMS value)
input resistance
12.5
24.5
k
mV
10 dB SAW sound
shelf
14 dB SAW sound
shelf
with respect to
V
iDQPSK
; 10 dB SAW
15.5
mV
V
iDR
AGC range
+10
15
+10
11
+10
20
+10
16
464
dB
dB
dB
dB
mV
with respect to
V
iDQPSK
; 14 dB SAW
V
iCUM(rms)
cumulative input signal voltage
(RMS value)
input capacitance
note 2
C
i
10
pF
Baseband outputs
CEYE
AND
SEYE
V
o(p-p)
eye pattern output signal voltage
(peak-to-peak value)
in-lock; system I;
note 3
in-lock; system B/G;
note 3
20log
10
(V
CEYE
/V
SEYE
)
1.25
V
1.79
V
V
I/Q
channel matching
2
0
+2
dB
COFF
AND
SOFF
V
O
offset compensator DC output
voltage
defined by V
RCF
0.5V
DDF2
V
Baseband filters
S
YSTEM
I
Af
o
pass band cut-off attenuation
f
i
= 6552 MHz
+ 182 kHz
f
i
= 6.0 MHz
±
50 kHz
f
i
= 6.0 MHz
±
80 kHz
f
i
= 4.43 MHz
1.9
3.1
4.6
dB
FMr
FM rejection
65
dB
FMomr
FM rejection (overmodulated FM)
45
50
dB
CCr
colour-carrier rejection
70
78
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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