Philips Semiconductors
Analog front end for digital video
processors
Preliminary specification
PNX3000
SYMBOL
PARAMETER
CONDITIONS
MIN.
∆Vrc(2H)
residual 2nd harmonic of note 10
−
carrier signal
IF AND TUNER AGC; NOTE 15
Timing of IF AGC
MVI
modulated video
interference
tres
response time
Tuner take over adjustment (via I2C-bus)
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; IF AGC
time constant set to normal
IF input signal amplitude
decrease of 52 dB
negative modulation
−
positive modulation
−
Vstart(min)(rms) minimum starting level for
−
tuner take over (RMS
value)
Vstart(max)(rms) maximum starting level for
100
tuner take over (RMS
value)
Tuner control output
Vo(max)
maximum tuner AGC
output voltage
maximum tuner gain; note 3 −
Vo(sat)
Io(TUNERAGC)
output saturation voltage
tuner AGC output current
range
minimum tuner gain; Io = 1 mA −
0
IL
leakage current RF AGC
−
∆Vi
input signal variation for
0.5
complete tuner control
AFC OUTPUT (VIA I2C-BUS); NOTE 16
fAFC
AFC resolution
−
∆fw
window sensitivity
−
∆flw
window sensitivity in large
−
window mode
DTV IF circuit
DTV IF AMPLIFIER INPUT
Vi(dif)(rms)
input sensitivity
(differential; RMS value)
Ri(dif)
input resistance
(differential)
fi between 30 MHz and 60 MHz −
note 3
−
TYP. MAX. UNIT
2.5
−
mV
−
10
%
2
−
ms
50
−
ms
100
−
ms
0.4
0.8
mV
150
−
mV
−
5
V
−
300
mV
−
1
mA
−
1
µA
2
4
dB
2
−
bits
125
−
kHz
275
−
kHz
75
150
µV
2
−
kΩ
2004 Oct 04
26