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LA71525M Datasheet(PDF) 5 Page - Sanyo Semicon Device |
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LA71525M Datasheet(HTML) 5 Page - Sanyo Semicon Device |
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5 / 25 page  LA71525M No. 5843-5/25 min t y p max [REC mode chroma] REC chroma T28A T14A 215 225 235 mVp-p low-range converter output level 180 190 200 REC chroma/FM ratio T28A T14A –3.7 –3.0 –2.3 dB T18 Burst emphasis amount T28A T14A 5.5 6.0 6.5 dB (NTSC mode) VXO oscillation level T28A T56 300 500 700 mVp-p (PAL mode) VXO oscillation level T28A T56 300 500 700 mVp-p (NTSC mode) REC ACC characteristics 1 T28A T14A dB REC ACC characteristics 2 T28A T14A –0.5 –0.1 dB REC ACC T28A T14A –26 dB Killer input level REC ACC T28A T14A T14A output level measured with spectrum analyzer and –60 –50 dB Killer output level compared to VOR-14, in killer condition as described above. REC ACC T28A T14A –20 dB Demodulator input level REC APC T28A T14A Input signal: 50% white signal superimposed with 350 Hz Pull-in range 1 4.4336 MHz 300 mVp-p CW. After checking that T14A output is on, CW frequency is raised until T14A output goes off. Frequency then is gradually reduced. CW frequency when T14A output goes on: f1 REC APC T28A T14A Same as above, CW frequency is lowered until T14A –350 Hz Pull-in range 2 output goes off. Then frequency is gradually raised. CW frequency when T14A output goes on: f2 REC AFC T28A T51 300 mVp-p, 15.6 kHz pulse train with 5 µs pulse width kHz Pull-in range 1 is input. Pulse train frequency is raised until T51 output waveform is impaired. Then frequency is lowered. Pulse train frequency when T51 waveform becomes normal: f1 REC AFC T28A T51 Same as above, pulse train frequency is lowered until T51 –1.0 kHz Pull-in range 2 output waveform is impaired. Then frequency is raised. Pulse train frequency when T51 waveform becomes normal: f2 BGP delay time T28 T37 T37 and T60 waveforms are observed with standard color 3.1 3.4 3.7 µs T60 bar input to T28A BGP width 4.7 4.9 5.1 µs +0.5 Symbol Parameter +0.2 0.5 0.2 +1.0 Input Output Conditions Unit Ratings Continued on next page VOR-14 C/FM GBE VVXO-RP VVXO-RN ACCR1 ACCR2 VACCK-ON VOACCK VACCK-OFF ∆f APC1 ∆f APC2 ∆f AFC2 ∆f AFC1 T14A burst level measured with VIN = 1 Vp-p CTL 0 standard color bar signal 1 tD tW Down-converted chroma level/FM level ratio with 100% chroma input (RL: 5.1 kΩ) SP/EP and LP T14A burst level ratio with VIN = 1 Vp-p standard color bar signal T56 output amplitude measured with FET probe at VIN = 1 Vp-p standard color bar signal T56 output amplitude measured with FET probe at VIN = 1 Vp-p standard color bar signal VIN = 1 Vp-p standard color bar signal and chroma signal only boosted by +6 dB T14A burst level measured and compared to VOR-14 VIN = 1 Vp-p standard color bar signal and chroma signal only boosted by –6 dB T14A burst level measured and compared to VOR-14 T14A input burst level measured when output goes off and compared to standard input level, with VIN = 1 Vp-p standard color bar signal and chroma signal being gradually attenuated. From killer condition as described above, T14A input burst level is measured when output goes on with input chroma level being gradually increased. This is compared to standard input level. Continued from preceding page T37 T60 tD tW A10276 |
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