Ordering number: EN3210A Monolithic Linear IC LA1806 AM/FM-IF/MPX Tuner System for Radio-Cassette Recorders, Music Centers Overview Package Dimensions The LA1806 is a characteristics-improved version of the LA1811, with the same pin assignment and package as those of the LA1811. Improvements are made on the following points: Separation (35 dB → 48 dB) and its dependence on free-running frequency (Refer to the separate catalog of the LA1805.) FM main distortion (0.8% → 0.45%) AM detection output (approximately 5 dB increased) The constants on five external parts are changed as LA1811 unit : mm . 3067-DIP24S [LA1806] . . Functions . FM-IF: IF amplifier quadrature detector, soft muting, tuning . MPX: indicator PLL stereo decoder, stereo indicator, forced monaural, VCO stop . AM: RF amplifier, MIX, OSC (with ALC), IF amplifier, SANYO : DIP24S detector, AGC, tuning indicator Features . FM/AM/MPX functions contained on a single chip . Minimum number of external parts required . On-chip FM muting function . High sensitivity . Less carrier leak of MPX Specifications Maximum Ratings at Ta = 25°C, See specified Test Circuit Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max Pins 3, 7, 8, 11, 20, 21 9 V Maximum supply current ICC max Pins 3 + 20 + 21 50 mA Flow-in current (Indicator drive current) ILED Pins 7, 8 20 mA Flow-out current Allowable power dissipation I23 Pd max Pin 23 0.1 mA Ta%70°C 500 mW Operating temperature Topr –20 to +70 °C Storage temperature Tstg –40 to +125 °C SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 13097HA(II)/N149TA,TS No.3210-1/4 LA1806 Opearating Conditions at Ta = 25°C Parameter Symbol Recommended supply voltage Conditions Ratings VCC Operating voltage range VCCop Unit 4.5 V 3.0 to 8.0 V * The FM output level forms an N curve (LA1805) and an S curve (LA1806). LA1805: N curve (for US band) LA1806: S curve (for Japanese band). Since an output load resistor is connected to pins 9, 10 externally, your desired output level can be set by varrying the output resistance. Operating Characteristics at Ta = 25°C, VCC = 4.5 V, See specified Test Circuit. Parameter Symbol Conditions min FM characteristics (Mono): fc = 10.7 MHz, fm = 1 kHz Quiescent current ICCO No input –3 dB sensitivity –3dBL.S. Referenced to VIN = 100 dBµ, 100%, down 3 dB typ max Unit 13 20 mA 28 35 dBµ V0 VIN = 100 dBµ, 100% mod. 154 226 308 mV Channel balance C.B. VIN = 100 dBµ, 100% mod. 0 0 1.5 dB Total harmonic distortion THD VIN = 100 dBµ, 100% mod. 0.45 1.2 Signal to noise ratio S/N VIN = 100 dBµ, 100% mod. 70 80 LED ON sensitivity VLED IL = 1 mA 23 33 Demodulation output FM Characteristics (Stereo) : fc = 10.7 MHz, fm = 1 kHz, L + R = 90%, pilot = 10%, VIN = 100 dBµ Separation Sep Stereo distortion 32 THD (MAIN) LED ON level VLED-on LED OFF level VLED-off 2.4 % dB 43 48 dBµ dB 0.45 1.2 % 3.9 5.4 % 2.7 % AM Characteristics: fc = 1000 kHz, fm = 1 kHz Quiescent current Detection output Signal to noise ratio Total harmonic distortion LED ON sensitivity ICCO No input 9.5 14.5 mA VO 1 VIN = 23 dBµ, 30% mod. 29 54 97 mV V O2 VIN = 80 dBµ, 30% mod. 78 126 193 mV S/N1 VIN = 23 dBµ, 30% mod. 17 21 dB S/N2 VIN = 80 dBµ, 30% mod. 50 55 dB THD1 VIN = 80 dBµ, 30% mod. 0.45 1.2 % THD2 VIN = 100 dBµ, 30% mod. 0.6 1.5 % VLED IL = 1 mA Note : Be fully careful of dielectric breakdown. 24 32 dBµ 16 Note : For further details, refer to the separate catalog of the LA1805. No.3210-2/4 LA1806 Equivalent Circuit Block Diagram ★:Not required for the LA1805 Unit (resistance: Ω) No.3210-3/4 LA1806 Test Circuit x Polystyrene film capacitor Note: The constants of parts *1 to *5 are changed from those of the LA1811. ★ :Not required for the LA1805 Unit (resistance: Ω ,capacitance: F) 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 January, 1997. Specifications and information herein are subject to change without notice. No.3210-4/4