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參數(shù)資料
| 型號： | U4479B-MFLG3 |
| 英文描述： | DVB-Cable IF Converter and Full Multi-Standard Video-/Sound IF Processing |
| 中文描述： | 的DVB -電纜中頻轉(zhuǎn)換器和完整的標準Video-/Sound中頻處理 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大小： | 257K |
| 代理商： | U4479B-MFLG3 |
U4479B
Preliminary Information
TELEFUNKEN Semiconductors
Rev. A2, 14-Jan-98
5 (11)
Electrical Characteristics (continued)
VS = 5 V, Tamb = +25°C
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
FPLL and VCO
Max. oscillator frequency
For carrier generation
fvco
70
MHz
Capture range
fvco = 38.9 MHz
Cvco = 8.2 pF
Dfcap
±1.4
MHz
Oscillator drift
(free runing) as function of
temperature
See note 2,
DTamb = 55°C,
Cvco = 8.2 pF,
fvco = 38.9 MHz
Df/DT
–0.3
%
Local oscillator output
signal
Internal control loop
switched off
LOout
100
mV
Local oscillator control
signal
Internal control loop
switched off
vtun
0.5
4.5
V
CVBS and 2nd IF output
Output current
–source
–sink
±Iout
2
5
4
mA
Output resistance
See note 1
Rout
100
W
Output amplitude
DVB signal
CVBS signal
Peak to peak value
vo,vid
1.6
1.8
1.8
2.0
2.0
2.2
V
Difference of the CVBS sig-
nals
Between B/G and L
Dvo,vid
10
%
DC output voltage
DVB mode
2.2
V
Sync level
B/G mode
Vsync
1.2
V
Zero carrier level for
negative modulation
(Ultra white level)
B/G mode
VDC
3.4
V
Zero carrier level for
positive modulation
(Ultra black level)
L mode
VDC
1.14
V
Supply voltage influence on
the ultra black- and ultra
white level
DV/V
1
%/V
Bandwidth (–1 dB) of
2nd IF, in DVB mode
RL ≥ 1 k
W, CL ≤ 50 pF
B
10
MHz
Frequency response over
AGC range
DB
2.0
dB
Differential gain error
DG
2
5
%
Differential phase error
DP
2
5
deg
Intermodulation 1.07 MHz
See note 3
aIM
52
60
dB
Video signal-to-noise ratio
Weighted , CCIR–567
S/N
56
60
dB
Residual vision carrier
fundamental wave
38.9 MHz and second
harmonic 77.8 MHz
vres1
5
15
mV
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