Single-Chip System for Radios LMF501 MITSUMI Single-Chip System for Radios Monolithic IC LMF501 Outline This is a monolithic IC designed for use as a single-chip AM radio. It can be used to configure an AM radio with few external components. It is ideal for use in watch radios, lighter-radios and other applications intended to operate on low voltage and current. Features 1. 2. 3. 4. Operation at low voltages possible Operates with low current consumption Compact, lightweight Broad AGC range VCC : 1.1V Package TO-92A (LMF501T-2) Absolute Maximum Ratings Item Symbol Ratings Units Operating temperature TOPR -30~+80 °C Storage temperature TSTG -40~+125 °C Power supply current VCC 1.5 V Electrical Characteristics Item Symbol Min. Typ. Max. Units Power supply voltage VCC Operating output voltage VOUT Circuit current ICC Practical frequency range fR Input resistance ZIN 4 MΩ Audio distortion THD 4 % AGC range AGC Power gain Gp 1.4 0.8 V 1.5 0.3 150 V mA 3000 kHz 30 dB 70 dB Measurement conditions: Except where noted otherwise, in measurement circuits1 VCC=1.4 V, RAGC=1.5kΩ Modulator: f=1000Hz 40%, VIN=1m V/rms MITSUMI Block Diagram Measurement Circuit Application Circuits Single-Chip System for Radios LMF501