LA75501V View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LA75501V

Monolithic Linear IC For Use in TV/VTR Applications VIF/SIF Signal Processing IC

SANYO -> Panasonic 

LA75501V

V11. C/S beat [Ics]

(1) Apply DC voltage to the external AGC IF AGC (pin 18) and vary it.

(2) fp = 38.9MHz CW;10mVrms

fc = 34.47MHz CW;10mVrms − 10dB

fs = 33.4MHz CW;10mVrms − 10dB

(3) Adjust the IF AGC (pin 18) voltage so that the output level at test point A becomes 1.3Vp-p.

(4) Measure the difference between the levels for 4.43MHz and 1.07MHz components at test point A.

V12.V13. Differential gain, differential phase [DG, DP]

(1) Internal AGC

(2) fp = 38.9MHz APL50% 87.5% Modulation video signal

Vi = 10mVrms

(3) Measure the DG and DP at test point A.

V14.V15. Black noise threshold and clamp voltage [VBTH, VBCL]

(1) Apply DC voltage (1 to 3V) to the external AGC, IF AGC (pin 18) and adjust the voltage.

(2) fp = 38.9MHz 400Hz 40% AM 10mVrms (VIF input)

(3) Adjust the IF AGC (pin 18) voltage to operate the noise canceller.

Measure the VBTH, VBCL at test point A.

V16. V17. VIF input resistance, input capacitance [Ri, Ci]

(1) External AGC (V18 = 2V)

(2) Referring to the Input Impedance Test Circuit, measure Ri and Ci with an impedance analyzer.

No.A0224-7/10

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