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TA1290FN View Datasheet(PDF) - Toshiba

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TA1290FN Datasheet PDF : 13 Pages
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TA1290FN
TEST CONDITION
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Input signal voltage sensitivity
PIF input : fp = 58.75MHz, fm = 15.75kHz, 30%AM, 84dBµV
Measure output video signal voltage (15-a, that voltage is 0dB). Lower input signal voltage
gradually, measure input PIF signal voltage when output video signal voltage is 3dB.
Maximum input signal voltage
PIF input : fp = 58.75MHz, fm = 15.75kHz, 30%AM, 84dBµV
Raise input signal voltage gradually, measure input PIF signal voltage (15-a) when output video
signal voltage is at the noise inverter threshold.
Differential gain / Differential phase
PIF input : fp = 58.75MHz, Standard television signal (V / S = 10 : 4 ramp waveform), 87.5%AM,
84dBµV
IF AGC : free
Measure deferential gain and deferential phase (15-b).
Output voltage at no signal
PIF input
: no input
IF AGC
: GND
Measure output video signal DC voltage (15-b).
Sync. voltage level
PIF input : fp = 58.75MHz, Standard television signal (V / S = 10 : 4 ramp waveform), 87.5%AM,
84dBµV
Measure sync. voltage level (15-b).
Output signal voltage
PIF input : fp = 58.75MHz, Standard television signal (V / S = 10 : 4 ramp waveform), 87.5%AM,
84dBµV
Measure output video signal voltage (15-b).
Noise inverter
PIF input : fp = 57~65MHz (sweep signal), 84dBµV.
Connect monitor scope to video output (15-b). Supply DC voltage to 2nd AGC from external source.
Controlling that voltage, measure noise inverter and clamp level when a waveform like that in the
following figure is output.
2001-02-26 7/13
 

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