Ordering number: EN1521D Monolithic Linear IC LA1185 FM Front-end for Radio-cassette Recorder, Home Stereo Applications Overview Package Dimensions The LA1185 is an FM receiver front-end IC for radio-cassette recorder, music center applications. Its mixer is of double-balanced type. The built-in oscillator and buffer amplifier improves the strong input characteristic. unit : mm 3017C-SIP9 [LA1185] Use . FM front-end IC for radio-cassette recorders and music centers Functions and Features SANYO : SIP9 . RF amplifier, mixer, local oscillator . Improvement in cross modulation characteristics due to the of double-balanced mixer. . use Improvement in strong input characteristic. . Minimum number of external parts required. . Less spurious radiation from local oscillator. . Operating voltage range : 1.5 to 8.0 V Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Maximum pin voltage Allowable power dissipation Symbol Conditions Ratings VCC max Unit 8 V V3-5 12 V V6-5 VCC + 0.8 V Pd max Ta % 80°C 150 mW Operating temperature Topr –20 to +80 °C Storage temperature Tstg –40 to +125 °C Ratings Unit Operating Conditions at Ta = 25°C Parameter Recommended supply voltage Operating voltage range Symbol VCC VCCop Conditions 4.5 V 1.5 to 8.0 V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 81096HA(II)/0067KI/N214MW/4124KI/9283KI,TS No.1521-1/5 LA1185 Operating Characteristics at Ta = 25°C, VCC = 4.5 V, fr = 108 MHz, fOSC = 118.7 MHz, See specified Test Circuit Symbol ICC Vo VOSC Vstop Conditions Quiescent 100 dBµ VCC = 2 V Allowable power dissipation, Pd max − mW Parameter Current dissipation Output saturation voltage Local oscillation voltage Oscillation stop voltage min 95 190 typ 5.5 115 235 1.4 max 8.0 135 1.6 Unit mA mVrms mVrms V Ambient temperature, Ta − °C (Mitsumi) Test Circuit and Equivalent Circuit Block Diagram (Sumida) (Sumida) (Mitsumi) Unit (resistance: Ω, capacitance: F) No.1521-2/5 Supply voltage, VCC – V Band Characteristic Local oscillation voltage Conversion gain Saturation output Specified test circuit with ANT B.P.F. removed MIX gain – dB Specified test circuit Saturation output – dBµ Local oscillation voltage – dBµ MIX gain – dB ∆fOSC – kHz Total gain – dB VCC Characteristic Oscillation output, VOSC – mVrms, ICC– 0 – mA Conversion gain – dB LA1185 Receiving frequency, fr − MHz Oscillation frequency, fOSC – MHz Temperature Characteristic Test Circuit Oscillation frequency, fOSC– MHz 65 dBµ sensitivity VO-100– dBµ Current dissipation, ICC-O – mA 65 dBµ sensitivity – dBµ Temperature Characteristic Unit (resistance: Ω, capacitance: F) Ambient temperature, Ta − °C No.1521-3/5 LA1185 Sample Application Circuit: LA1185 + LA1260 US band AM section Unit (resistance: Ω, capacitance: F) LA185+LA1260 Overall Characteristic 0 dB = 100% Mitsumi Sumida T1 YT-30224 2153-4016-006 T2 YT-30194 2153-4095-339 L1 YT-30196 0708-700 L2 YT-40001 0708-701 B.P.F. YT-30025 SNY-074-2001 THD – % AM output fm = 1 kHz LED lightning sensitivity 11.5dB ANT input – dBµ LA1185+LA1260 Band Characteristic LED lightning sensitivity Usable sensitivity Saturation output Remove 1st stage B.P.F. when testing Saturation output – mVrms Usable sensitivity S/N –30 dB input, – dBµ LED lightning sensitivity, 3 dB L.S. Output – dBm Output fm = 400 Hz 30% mod Receiving frequency, fr – MHz No.1521-4/5 LA1185 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 loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: 1 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: 2 Not impose any responsibility 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 August, 1996. Specifications and information herein are subject to change without notice. No.1521-5/5