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參數(shù)資料
| 型號： | 935233410118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO24 |
| 封裝： | PLASTIC, SOT-137, SO-24 |
| 文件頁數(shù)： | 11/39頁 |
| 文件大?。?/td> | 302K |
| 代理商： | 935233410118 |
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1999 Sep 24
19
Philips Semiconductors
Preliminary specication
YUV one chip picture improvement based on luminance
vector-, colour vector- and spectral processor
TDA9178
Notes
1. The amount of correction depends on the parameters of the incoming YUV signals; therefore it is not possible to give
exact figures for the correction angle. The aperture angle of the correction range of 45
° (±22.5°) is just given as an
indication and is valid for an input signal with a luminance signal amplitude of 75% and a colour saturation of 50%.
2. The amount of correction depends on the parameters of the incoming YUV signals; therefore it is not possible to give
exact figures for the correction angle.
3. The contour signal cannot be measured separately from the luminance input signal. The contour signal is also
processed by the smart noise controller. The frequency transfer in the peaking mode of the luminance signal can be
derived from the frequency transfer of the selected contour signal, taking into account the summation of the contour
signal and the luminance input signal. The frequency transfer is most easily measured by sine excitation with a
relatively small signal amplitude of 10% of the selected dynamic range of the luminance input, to avoid interaction
with the step detector.
4. Peaking set to minimum. Input signal is a sine wave with the nominal peak-to-peak amplitude corresponding to the
selected input range.
5. Input signal is a 250 kHz block with a rise time of 260 ns and a nominal peak-to-peak amplitude corresponding to the
selected input range.
Overall output group delay performance
td(YUV)
input to output delay of YUV signals 1fH mode; transparent
300
ns
2fH mode; transparent
180
ns
tdm(UV-Y)
adjustment delay U and V signals
w.r.t. Y signal
1fH mode; transparent
32
0
+40
ns
2fH mode; transparent
16
0
+20
ns
Noise measurement
Rnoise
range of noise detector
see Figure 18
45
20
dB
tcon
conversion time
32fV
s
Cue ash
CUE FLASH OUTPUT
(PIN CF); OPEN COLLECTOR
Vo(max)
maximum output voltage
pull-up to external
supply
5.5
V
Isink(max)
maximum sink current
1mA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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