參數(shù)資料
型號(hào)： LA75694M
元件分類： 接收器
英文描述： AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24
封裝： 0.300 INCH, MFP-24
文件頁(yè)數(shù)： 10/10頁(yè)
文件大小： 226K
代理商： LA75694M
LA75694M
No.A0251-9/10
F1. 1st SIF conversion gain [VG]
(1) Internal AGC
(2) fp = 45.75MHz CW; 10mV (VIF input)
fs = 41.25MHz CW; 500
V (1st SIF input) V1
(3) Detection output level at test point C (Vrms) V2 (4.5MHz)
(4) VG = 20log
dB
F2. 4.5MHz output level [SO]
(1) Internal AGC
(2) fp = 45.75MHz CW; 10mV (VIF input)
fs = 41.25MHz CW; 10mV (1st SIF input) V1
(3) Detection output level at test point C (4.5MHz) SO (mVrms)
F3. 1st SIF maximum input [Si max]
(1) Internal AGC
(2) fp = 45.75MHz CW; 10mV (VIF input)
fs = 41.25MHz CW; variable (1st SIF input)
(3) Input level at which the detection output at test point C (4.5MHz) becomes SO ±2dB. Si max
F4.F5. 1st SIF input resistance, Input capacitance [Ri (SIF), Ci (SIF)]
(1) Using an input analyzer, measure Ri and Ci in the input impedance measuring circuit.
C1. Converter conversion gain [VG (SIF)]
(1) Internal AGC
(2) fp = 45.75MHz CW; 10mV (VIF input)
fs = 41.25MHz CW; 316
V (1st SIF input)
(3) Measure the 6MHz component at test point E (MIX output) V1
(4) Measure the 4.5MHz component at test point F (NICAM output). V2
(5) VG(SIF) = 20log
dB
C2. SIF converter maximum output level [V max]
(1) Internal AGC
(2) fp = 45.75MHz CW; 10mV (VIF input)
fs = 41.25MHz CW; 10mV (1st SIF input)
(3) Measure the 6MHz component at test point E (MIX output). V max (dB
V)
C3. Carrier suppression ratio [VGR (4.5)]
(1) Internal AGC
(2) fp = 45.75MHz CW; 10mV (VIF input)
fs = 41.25MHz CW; 316
V (1st SIF input)
(3) Measure the 6MHz component at test point E (MIX output). V6 (dBV)
(4) Measure the 4.5MHz component at test point E (MIX output). V4.5 (dBV)
(5) Perform the following calculation.
Carrier suppression ratio VGR (4.5) (dB) = V6 – V4.5
C5. OSC leakage [OSC leak]
(1) Internal AGC
(2) fp = 45.75MHz CW; 10mV (VIF input)
fs = 41.25MHz CW; 316
V (1st SIF input)
(3) Measure the 6MHz component at test point E (MIX output). V6 (dBV)
(4) Measure the 500kHz component at test point E (MIX output). V0.5 (dBV)
(5) Perform the following calculation.
Carrier suppression ratio OSC leak (dB) = V6 – V0.5
V2
V1
V2
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PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LA75695VA 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Use in TV/VTR Applications IF Signal Processing (VIF+SIF+SIF converter)
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