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參數資料
型號: 935224770551
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: PLASTIC, SOT-319, QFP-64
文件頁數: 22/75頁
文件大小: 522K
代理商: 935224770551
1997 Jul 01
29
Philips Semiconductors
Preliminary specication
I2C-bus controlled economy PAL/NTSC
and NTSC TV-processors
TDA837x family
IF AND TUNER AGC; note 12
Timing of IF-AGC with a 2.2
F capacitor (pin 53)
modulated video interference
30% AM for 1 to 100 mV;
0 to 200 Hz (system B/G)
10
%
tres(IFinc)
response time to an IF input
signal amplitude increase of
52 dB
positive (when available)
and negative modulation
2
ms
tres(IFdec)
response to an IF input signal
amplitude decrease of 52 dB
negative modulation
50
ms
positive modulation (when
available)
100
ms
I53
allowed leakage current of the
AGC capacitor
negative modulation
10
A
positive modulation (when
available)
200
nA
Tuner take-over adjustment (via I2C-bus)
Vi(min)(rms)
minimum starting level for tuner
take-over (RMS value)
0.4
0.8
mV
Vi(max)(rms)
maximum starting level for tuner
take-over (RMS value)
40
80
mV
Tuner control output (pin 54)
VoAGC(max)
maximum tuner AGC output
voltage
maximum tuner gain;
note 2
VP +1
V
Vo(sat)
output saturation voltage
minimum tuner gain;
I54 =2mA
300
mV
IoAGC(max)
maximum tuner AGC output
swing
5
mA
ILI(RF)
leakage current RF AGC
1
A
V
i
input signal variation for a
control current variation of 1 mA
0.5
2
4
dB
AFC OUTPUT (VIA I2C-BUS); note 13
RESAFC
AFC resolution
2
bits
wsen
window sensitivity
65
80
100
kHz
wsenL
window sensitivity in large
window mode
195
240
300
kHz
VIDEO IDENTIFICATION OUTPUT (VIA I2C-BUS)
td
delay time of identication after
the AGC has stabilized on a
new transmitter
10
ms
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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