參數(shù)資料
型號： VTBT5UF201
廠商： Sharp Corporation
英文描述： RF Data Sheet Combination Tuner/Demodulator
中文描述： 射頻數(shù)據(jù)表組合調(diào)諧器/解調(diào)器
文件頁數(shù)： 3/6頁
文件大?。?/td> 63K
代理商： VTBT5UF201
Combination Tuner/Demodulator
VTBT5UF201
RF Data Sheet
3
Noise Figure (UHF AIR)
– Maximum 7 dB (TYP.), 10 dB (MAX.)
–
X
Σ
xi n
=
– Shall satisfy the requirements stated in FCC
NF Sampling Plan C (effective January, 1980)
– Noise figure measurement shall be based on
FCC OST 50 (effective January, 1980)
– XIRS: 7 dB (TYP.), 10 dB (MAX.)
NOTE:
*A representative tuner test shall be conducted on the follow-
ing channels and on the worst channel found CH 14 through CH69:
Ch14, 20, 26, 32, 38, 44, 50, 56, 62, and 69.
Image Rejection
– At -47 dBM Input
– VHF Air: 70 dB (TYP.), 60 dB (MIN.)
– VHF CATV: 70 dB (TYP.), 60 dB (MIN.)
– UHF: 60 dB (TYP.), 40 dB (MIN.)
IF Rejection (dB)
– At -47 dBM Input
– VHF Low: 80 dB (TYP.), 55 dB (MIN.)
– VHF High: 90 dB (TYP.), 90 dB (MIN.)
– UHF: 85 dB (TYP.), 60 dB (MIN.)
– At -17 dBM: Input
– VHF Low: 58 dB (TYP.), 50 dB (MIN.)
– VHF High: 63 dB (TYP.), 50 dB (MIN.)
– UHF: 60 dB (TYP.), 50 dB (MIN.)
Specific Channel Rejection.
– Desirable 54 dBμ input; Undesireable 49 dbμ input.
– CH 6
←
CH A-5: 55 dB (TYP.); 50 dB (MIN.)
– CHP 6
←
CHS6: 55 dB (TYP.); 52 dB (MIN.)
Band Edge Tuning Margin
– CH 2: -4.0 MHz (TYP.), -1 MHz (MIN.)
– CH B: 3.0 MHz (TYP.), +1 MHZ (MIN.)
– CH C: -4.0 MHz (TYP.), -1 MHz (MIN.)
– CH W + 11: 3.0 MHz (TYP.), +1 MHz (MIN.)
– CH W + 12: -5.0 MHz (TYP.), -1.5 MHz (MIN.)
– CH 69: 6.0 MHz (TYP.), 1.0 MHz (MIN.)
Antenna Terminal Voltage
– Fundamental Wave 40 dBμ (MAX.)
– Higher Harmonic 48 dBμ (MAX.)
PLL AC Characteristics
– Setting Up Enable: Tsuen 1 μs (MIN.)
– Holding Enable: Thden 1 μs (MIN.)
– Setting Up Data: Tsuda 1 μs (MIN.)
– Holding Data: Thdda 1 μs (MIN.)
– Clock Level High: Thicl 1 μs (MIN.)
– Clock Level Low: Tlocl 1 μs (MIN.)
– Clock Rate: Trate 10 μs (MIN.)
– Signal Rising: Trise 1 μs (MIN.)
– Signal Falling: Tfall 1 μs (MIN.)
Picture Output
– Output Level (CH 10) 1.0 Vp-p (TYP.),
1.0 ±15 Vp-p
– At 1 k
termination, fp 70 dBμ, White 100%
– Differential Gain (CH 10) 3% (TYP.), 10% (MAX.)
– fp 90 dBμ, Sterstep 80 IRE
– Differential Phase (CH 10) 3° (TYP.), 10° (MAX.)
– fp 90 dBμ, Sterstep 80 IRE
– S/N ratio 47 dB (TYP.), 43 dB (MIN.)
– fp 70 dBμ, White 100%, 100 kHz to 4.2 MHz fil-
ter, Sctrap On
– Frequency Characteristics (CH 10), fp 70 dBμ,
multi-burst
– 1.0 MHz: -0.3 dB (TYP.), -2 ±0.3 dB
– 2.0 MHz: -0.4 dB (TYP.), -2 ±0.4 dB
– 3.0 MHz: -1.0 dB (TYP.), -1.7 ±0.7 dB
– 3.58 MHz: -2.0 dB (TYP.), -2 ±2 dB
– Synchronized Ratio (CH 10)
– 28.5% (TYP.), 23.6% to 33.6%
– fp 70 dBμ, SMPTE color bar
Sound Output
– Output Level (CH 10) 245 mVrms (TYP.),
185 mVrms to 315 mVrms
– fp 70 dBμ, SMPTE color bar 87.5% modula-
tion, P/S 6 dB, fs 1 kHz, sin-curve 60% modu-
lation, 75 μs pre-emphasis
– Distortion Rate (CH 10) 1% (TYP.), 4% (MAX.)
– S/N Ratio (CH 10) 53 dB (TYP.), 42 dB (MAX.)
– Frequency Characteristics (CH 10) 0 dB (TYP.),
0 ±3 dB
– AM Removal Level (CH 10) 45 dB (TYP.),
35 dB (MAX.)
AFT Output
– Output Voltage 2.5 V (TYP.), 1.75 V to 3.25 V
– Frequency Accuracy 25 kHz (TYP.), 100 kHz (MAX.)
S
(Tested channels including worst)
Σ
Xi
x
–
(
)
2
n
1
–
(
)
n
10*
=
,
=
Figure 2. Radiation (3m Method)
60
50
40
30
20
88
216
43.5 dB
μ
46 dB
μ
54 dB
μ
960
5000
COMB4-4
R
μ
FREQUENCY (MHz)
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