參數(shù)資料
型號(hào)： PNX3000
廠商： NXP Semiconductors N.V.
英文描述： Analog front end for digital video processors
中文描述： 模擬前端數(shù)字視頻處理器
文件頁(yè)數(shù)： 26/51頁(yè)
文件大?。?/td> 285K
代理商： PNX3000
2004 Oct 04
26
Philips Semiconductors
Preliminary specification
Analog front end for digital video
processors
PNX3000
V
rc(2H)
residual 2nd harmonic of
carrier signal
note 10
2.5
mV
IF
AND TUNER
AGC;
NOTE
15
Timing of IFAGC
MVI
modulated video
interference
response time
30 % AM for 1 V to 100 mV;
0 Hz to 200 Hz (B/G standard)
IF input signal amplitude
increase of 52 dB; positive and
negative modulation; IFAGC
time constant set to normal
IF input signal amplitude
decrease of 52 dB
negative modulation
positive modulation
10
%
t
res
2
ms
50
100
ms
ms
Tuner take over adjustment (via I
2
C-bus)
V
start(min)(rms)
minimum starting level for
tuner take over (RMS
value)
maximum starting level for
tuner take over (RMS
value)
0.4
0.8
mV
V
start(max)(rms)
100
150
mV
Tuner control output
V
o(max)
maximum tuner AGC
output voltage
output saturation voltage
tuner AGC output current
range
leakage current RFAGC
input signal variation for
complete tuner control
maximum tuner gain; note 3
5
V
V
o(sat)
I
o(TUNERAGC)
minimum tuner gain; I
o
= 1 mA
0
300
1
mV
mA
I
L
V
i
0.5
2
1
4
μ
A
dB
AFC
OUTPUT
(
VIA
I
2
C-
BUS
);
NOTE
16
f
AFC
f
w
f
lw
AFC resolution
window sensitivity
window sensitivity in large
window mode
2
125
275
bits
kHz
kHz
DTV IF circuit
DTV IF
AMPLIFIER INPUT
V
i(dif)(rms)
input sensitivity
(differential; RMS value)
input resistance
(differential)
f
i
between 30 MHz and 60 MHz
75
150
μ
V
R
i(dif)
note 3
2
k
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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