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參數(shù)資料
| 型號(hào)： | STV2286 |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 中文描述： | 250 的低電流運(yùn)算，低反向泄露，低噪聲穩(wěn)壓二極管 |
| 文件頁數(shù)： | 25/76頁 |
| 文件大?。?/td> | 2157K |
| 代理商： | STV2286 |
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STV223XD/224XC - ELECTRICAL CHARACTERISTICS
25/76
SIF AMPLIFIER
Note 5
: L standard Sc/Pc = -10 dB, Nyquist Pc = -6 dB, SIF input -4 dB with PIF input = 84 μV, BG standard Sc/Pc = -
13 dB, Nyquist Pc = -6 dB, SIF input -7 dB with PIF input = 85 μV.
Note 6
: This parameter is not tested during production. It is tested on the validation bench during the qualification phase.
SIF AGC (FM)
SIF AGC (AM)
DEEMPHASIS
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
VINSIF
SIF Input Sensitivity
- 3dB at AM/FMOUT Pin (see Note 5)
AM output amplitude,
FM subcarrier amplitude
- 3dB to +1dB at AM/FMOUT Pin
SIF Inputs (see Note 6)
SIF Inputs
55
40
60
2
2
μV
RMS
GRSIF
C
INSIF
R
INSIF
Gain Control Range
Differential Input Capacitance
Differential Input Resistance
dB
pF
k
1.5
1.5
2.5
2.5
Symbol
I
C
I
D
Parameter
Test Conditions
Min.
Typ
2.4
100
Max.
Unit
mA
μA
Charging Current
Discharging Current
Symbol
I
NORMAL
I
FAST
Parameter
Test Conditions
Min.
Typ
±6
±2.4
Max.
Unit
μA
mA
Charging/Discharging Current
Charging/Discharging Current
Normal time constant
Fast time constant
FM DEMODULATOR
Electrical parameter valid in both QSS and Intercarrier modes, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
SIFMin
Min. Broadcast Sound/Video Carri-
er Ratio
FM Audio Output Amplitude at AM/
FMOUT Pin
Maximum FM Deviation
Total Harmonic Distortion
Intercarrier mode: SAW filter K2955M
at SNR 35 dB
FM dev = ±27kHz BGDKI
FM dev = ±13.5kHz MN
THD < 10%
FM dev = ±27kHz BGDKI
Weighted according to CCIR468-4
Quasi-Peak
m = 30%, AF = 1 kHz
See Note 4
Intercarrier mode: SAW filter K2955M
Black picture,
White picture,
250 kHz squarewave
-30
dB
VOAF
400
500
630
mV
RMS
DFMX
THD_FM
170
0.3
kHz
%
1
S/N
Audio S/N
55
dB
AMR
SVR
Amplitude Modulation Rejection
Supply Voltage Rejection
32
45
dB
dB
S/N
vsvideo
S/N versus picture content, Inter-
carrier mode
52
50
52
dB
Symbol
deemp-T1 De-emphasis Time Constant
deemp-T2 De-emphasis Time Constant
Parameter
Test Conditions
Min.
Typ
50
75
Max.
Unit
μs
μs
B,G,D,K,I standards
M, N, standards
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