LA1177

Ordering number : EN2257B Monolithic Linear IC LA1177 Electronic Tuning-Use FM Front End for Car Radio, Home Stereos Overview • The LA1177 is an FM front end IC for use in car radio, home stereo applications. It requires fewer external parts. The on-chip oscillator and oscillation buffer facilitate designing of electronic tuning sets. Package Dimensions unit: mm 3017C-SIP9 [LA1177] Features • Wide-band AGC circuit (Improvement in intermodulation, cross modulation characteristics). • On-chip local oscillation buffer (For electronic tuning). Functions • Oscillator, oscillation buffer. • Mixer. • Wide-band AGC circuit. • IF amplifier. SANYO: SIP9 Specifications Maximum Ratings at Ta=25°C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Pins 2, 9 Ta≤70°C Conditions Ratings 10 440 –20 to +70 –40 to +125 Unit V mW °C °C Operating Conditions at Ta=25°C Parameter Recommended supply voltage Operating voltage range Symbol VCC VCC op Conditions Ratings 8 8 to 9 Unit V V Electrical Characteristics at Ta=25°C, VCC=8V, fin=88MHz Parameter Quiescent current AGC high-level voltage AGC low-level voltage AGC mixer input voltage IF saturation output voltage Input limiting voltage Voltage gain Local OSC output voltage Symbol ICCO VAGC-H VAGC-L Vi AGC VIF-max Vi lim VG VOSC VIN=65dBµ No input, 75Ω termination No input VIN=0dBµ VIN=100dBµ VAGC≤2V, Pin 3 VIN=1.0dBµ 73 108 76 88 80 Conditions Ratings min 21 7.7 typ 26 8.0 0.07 80 112 83 92 84 0.3 87 116 90 96 88 max 31 Unit mA V V dBµ dBµ dBµ dBµ dBµ SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 93097HA (KT)/3079TA/1268KI/8016KI, TS No.2257-1/8 LA1177 Evaluation Circuit and Internal Equivalent Circuit Block Diagram Unit (resistance : Ω, capacitance : F) T1 : YT30224 (Mitsumi) L1 : HU-50448 (Mitsumi) CF1-CF2 : SFE10.7MA (Murata) Typical Voltage on Each Pin Pin No. 1 2 3 4 5 6 7 8 9 Typical voltage 2.7V 8.0V 8.0V 2.0V 0V 4.9V 1.4V 4.4V 8.0V Description Mixer input Mixer output AGC input IF input GND Oscillator base terminal Oscillation buffer output IF output VCC Remarks No input Note : Extreme caution should be exercised when applying voltage across pin 9 (+) and other pins as dielectric breakdown may occur. No.2257-2/8 LA1177 Sample Application Circuit Unit (resistance : Ω, capacitance : F) Sample Printed Circuit Pattern Cu-foiled area 85×82 mm2 Unit (resistance : Ω, capacitance : F) No.2257-3/8 LA1177 Input/Output Characteristic Mixer Input/Output Characteristic IF amp output level – dBµ Mixer output level – dBµ AGC output voltage – V Mixer input level – dBµ AGC Detuning Characteristic OSC buffer output level – mVrms Mixer input level – dBµ Load Delay Characteristic of OSC Puffer Mixer input level – dBµ Detuning frequency – MHz Load Resistance Characteristic of OSC Buffer OSC buffer output level – mVrms Load capacitance – pF Reduced Voltage Characteristic of OSC Frequency Load resistance, RL – Ω Reduced Voltage Characteristic of OSC Frequency OSC buffer output level – mVrms OSC frequency variation – kHz Supply voltage, VCC – V IF Amp Frequency Characteristic Supply voltage, VCC – V Voltage gain, VG – dB Frequency, f – kHz No.2257-4/8 LA1177 IF Amp Input/Output Characteristic Current Drain Characteristic IF amp output level – dBµ Current drain, ICC – mA IF amp input level – dBµ Input/Output Characteristic Relative level deviation of IF amp output – dB Supply voltage, VCC – V Temperature Characteristic of Mixer Input/Output Mixer input level – dBµ Input/Output Characteristic with Temperature as Parameter AGC output voltage – V Total harmonic distortion, THD – % Demodulation output level – dBm Ambient temperature, Ta – °C Input/Output Characteristic of Mixer Input/Output Relative level deviation of Mixer output – dB IF amp output level – dBµ Relative level deviation of IF amp output – dB Mixer input level – dBµ Mixer Input/Output Characteristic with Temperature as Parameter Ambient temperature, Ta – °C Temperature Characteristic of IF Amp Input/Output Mixer output level – dBµ Mixer input level – dBµ Ambient temperature, Ta – °C No.2257-5/8 LA1177 IF Amp Input/Output Characteristic with Temperature as Parameter Mixer input level at which AGC voltage is inverted – dBµ Temperature Characteristic of Mixer Input level at which AGC Voltage is Inverted IF amp output level – dBµ IF amp input level – dBµ Temperature Characteristic of VAGC-L Voltage Ambient temperature, Ta – °C Temperature Characteristic of VAGC-H Voltage VAGC-L voltage – V VAGC-H voltage – V Ambient temperature, Ta – °C Temperature Characteristic of OSC Frequency Ambient temperature, Ta – °C Temperature Characteristic of OSC Buffer Output OSC buffer output variation – dB OSC frequency variation – kHz Ambient temperature, Ta – °C OSC Frequency Characteristic Mixer input 30dB QS sensitivity – dBµ Ambient temperature, Ta – °C Reception Sensitivity Characteristic OSC level – dBµ OSC frequency – MHz Receiving frequency – MHz No.2257-6/8 LA1177 AGC Characteristic Intermodulation Characteristic 30dB QS sensitivity – dBµ AGC output voltage – V Mixer input level – dBµ Input/Output Characteristic Undesired signal input level – dBµ Input/Output Characteristic Antenna Input level – dBµ Intermodulation Characteristic (Mixer alone) AGC voltage, VAGC – V Demodulation level – dBm Demodulation level – dBµ Mixer Input level – dBµ Intermodulation Characteristic (3SK114) 30dB QS sensitivity – dBµ 30dB QS sensitivity – dBµ Undesired signal input level – dBµ Intermodulation Characteristic (3SK181) Undesired signal input level – dBµ 30dB QS sensitivity – dBµ Undesired signal input level – dBµ No.2257-7/8 LA1177 Intermodulation Characteristic (Comparison) - (1) Intermodulation Characteristic (Comparison) - (2) 30dB QS sensitivity – dBµ Undesired signal input level – dBµ 30dB QS sensitivity – dBµ Undesired signal input level – dBµ 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.2257-8/8