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| Ordering number : EN2558A Monolithic Linear IC LA7054 Video, Audio Signal Processor for UHF Band RF Modulator Overview Package Dimensions The LA7054 is a video, audio signal processor IC for UHF unit: mm band RF modulators. It performs the functions of TSG (test 3017C-SIP9 signal generator), video clamp circuit, white clip circuit, audio FM modulator. It is highly stable to supply voltage variations because the LA7054 has an internal voltage regulator. [LA7054] Functions * Audio FM modulator * Sync pulse peak clamp * TSG * White clip * Voltage regulator SANYO: SIP9 Features * Low-voltage operation : VCC=5V * Highly stable to supply voltage variations because the LA7054 has an internal voltage regulator. * On-chip TSG (test signal generator). * Good frequency characteristic of white clip. * Wide amplitude of audio carrier and less high-frequency spurious interference. * Low audio distortion. * Low current drain : -30% (compared with our similar ICs). * Minimum number of parts required : Peripherals of clock oscillator for TSG. * Small-sized package : 9-pin SIP Specifications Maximum Ratings at Ta=25C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Conditions Ta60C Ratings 9 250 -20 to +80 -40 to +125 Unit V mW C C Operating Conditions at Ta=25C Parameter Recommended supply voltage Operating voltage range Symbol VCC VCC op Conditions Ratings 5 4.25 to 7.00 Unit V V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 73097HA (KT)/92895TH/6257TA, TS No.2558-1/3 LA7054 Operating Characteristics at Ta=25C, VCC=5V Parameter Current drain Video clamp voltage White clip level TSG output amplitude TSG V/S ratio Horizontal sync signal period Horizontal sync signal width White signal width Sync-1st white signal rise time Sync-2nd white signal rise time Audio carrier amplitude Audio modulation degree A Audio modulation degree B Audio modulation degree C Audio modulation degree D Audio modulation degree E Audio distortion Symbol ICC VCL VWC VTO V/S tS HS HV tV1 tV2 VAO ms ms ms ms ms THD SW Mode SW1 SW2 SW3 a a a a b a c - a - - - - - - - - - - - - - - - - - - - - - - - - - - - - b b b b b b b b - - - - - - Conditions Ratings min 10 1.35 1.10 typ 14 1.60 1.14 Unit max 18 mA 1.85 Vp-p 1.18 Vp-p VWC=V1-VCL V1 : Output voltage Input signal : 1kHz 4.5Vp-p, 50kHz : 100% Same as above 0.85 1.00 1.15 Vp-p 6.0/4.0 6.5/3.5 7.2/2.8 63.7 64.0 64.3 s 3.6 4.0 4.4 s 3.6 4.0 4.4 s 22 24 26 s 38 40 42 s 1.05 1.30 1.55 Vp-p 73 81 89 % 81 90 99 % 90 100 110 % 99 110 121 % 109 121 133 % - 0.3 1.5 % Equivalent Circuit Block Diagram No.2558-2/3 LA7054 Test Circuit Ceramic resonator 5.5MHz coil Murata Toko Sumida CSB500E54 BCRK500B 2239-334 Unit (resistance : , Capacitance : F) TSG Output Waveform No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property lose. Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibilty for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of July, 1997. Specifications and information herein are subject to change without notice. No.2558-3/3 |
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