Ordering number : EN2712A Monolithic Linear IC LA1178M FM Front End for Car Radio, Home Radio-Use Functions Package Dimensions • Double end type mixer • Oscillator buffer • Oscillator • Wide-band AGC circuit unit: mm 3086-MFP10 • IF amplifier [LA1178M] Features • Excellent intermodulation characteristic (wide-band AGC circuit) • On-chip local oscillation buffer for electronic tuning. SANYO: MFP10 Specifications Maximum Ratings at Ta=25°C Parameter Symbol Conditions Maximum supply voltage VCC max Pins 2, 3, 10 Allowable power dissipation Pd max Ta≤75°C Ratings Unit 10 V 440 mW Operating temperature Topr –20 to +70 °C Storage temperature Tstg –40 to +125 °C Operating Conditions at Ta=25°C Parameter Symbol Recommended supply voltage VCC Operating voltage range VCC op Conditions Ratings Unit 8 V 8 to 9 V Electrical Characteristics at Ta=25°C, VCC=8V, fim=88MHz, See specified Test Circuit. Parameter Quiescent current Symbol ICCO Conditions Ratings Unit min typ max No input 21 26 31 mA 7.7 0.3 V AGC high-level voltage VAGC-H 0dBµ, pin 4 AGC low-level voltage VAGC-L 100dBµ, pin 4 AGC mixer input VIN AGC VAGC≤2V, Pin 4 IF saturation output voltage VIF-max 110dBµ 8.0 0.07 V 67 74 81 dBµ 108 112 116 dBµ Input limiting voltage Vlim 81 88 95 dBµ Voltage gain VG 65dBµ 84 88 92 dBµ Local OSC output voltage VOSC No input, 75Ω termination 80 84 88 dBµ Note) Extreme caution should be exercised when applying voltage across pin 10 and 3 as dielectric breakdown may occur. SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 93097HA (KT)/5099YT/N137KI, TS No.2712-1/7 LA1178M Typical Voltage on Each Pin and Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 Typical voltage [V] 2.7 8.0 8.0 8.0 2.0 0.0 4.9 1.4 4.4 8.0 Description Mixer input Mixer output Mixer output AGC input IF amp input GND Oscillator base terminal Oscillation buffer output IF output VCC Remarks No input Evaluation Circuit and Internal Equivalent Circuit Block Diagram Unit (resistance : Ω, capacitance : F) No.2212-2/7 LA1178M Pin Description Pin No. 1 Function Internal Equivalent Circuit Remarks Mixer input AGC pickup pin is connected. 2 Mixer output 3 Mixer output 4 Wide-band AGC output RIN≈330Ω 5 IF amp input 6 IF amp input 7 OSC 8 OSC buffer output ROUT≈330Ω 9 IF amp output 10 VCC VCC No.2712-3/7 LA1178M AGC Characteristic AGC output voltage – V IF output level – dBµ AGC output voltage – V Input/Output Characteristic Mixer input level – dBµ AGC Interting Level Characteristic Mixer input level – dBµ Mixer output level – dBµ Mixer input level – dBµ Mixer Input/Output Characteristic Detuning frequency – MHz Load Resistance Characteristic of OSC Buffer OSC buffer output level – mVrms OSC buffer output level – mVrms Mixer input level – dBµ Load Capacitance Characteristic of OSC Buffer Load resistance, RL – Ω Reduced Voltage Characteristic of OSC Buffer Output OSC frequency variation – kHz OSC buffer output level – mVrms Load capacitance – pF Reduced Voltage Characteristic of OSC Frequency Supply voltage, VCC – V Supply voltage, VCC – V No.2712-4/7 LA1178M IF Amp Input/Output Characteristic Gain, VG – dB IF-amp output level – dBµ IF Amp Frequency Characteristic Frequency, f – MHz Current Drain Characteristic Current drain, ICC – mA IF-amp output level – dBµ IF-amp input level – dBµ Temperature Characteristic of Input/Output Supply voltage,VCC – V Mixer input level – dBµ Temperature Characteristic of IF Amp Input/Output Mixer output level – dBµ IF-amp output level – dBµ Temperature Characteristic of Mixer Input/Output IF-amp input level – dBµ Temperature Characteristic of VAGC-Lo Voltage IF-amp output level – dBµ Mixer input level at which AGC voltage is inverted – dBµ Mixer input level – dBµ Temperature Characteristic of Mixer Input/Output at which AGC Voltage is Inverted Ambient temperature, Ta – °C Ambient temperature, Ta – °C No.2712-5/7 LA1178M Temperature Characteristic of VAGC-Hi Voltage VAGC-Hi voltage – V OSC buffer output variation – dB Temperature Characteristic of OSC Buffer Output Ambient temperature, Ta – °C Input/Output Characteristic 30dB QS sensitivity – dBµ Demodulation output level – dBm Ambient temperature, Ta – °C Imtermodulation Characteristic Undesired signal input level – dBµ Mixer input level – dBµ Smith Chart IF AMP Input/Output impedance (LA1175) IF AMP Input impedance (LA1178M) IF AMP Output impedance (LA1178M) Mixer Input impedance : f=80 to 110MHz f=10.7MHz No.2712-6/7 LA1178M 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 September, 1997. Specifications and information herein are subject to change without notice. No.2712-7/7