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| Ordering number: EN3210A Monolithic Linear IC LA1806 AM/FM-IF/MPX Tuner System for Radio-Cassette Recorders, Music Centers Overview 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 Package Dimensions unit : mm . . . 3067-DIP24S [LA1806] Functions . FM-IF: IF amplifier quadrature detector, soft muting, tuning . MPX: indicator decoder, stereo indicator, forced PLL stereo monaural, VCO stop . AM: RF amplifier, MIX, OSC (with ALC), IF amplifier, detector, AGC, tuning indicator SANYO : DIP24S 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 = 25C, See specified Test Circuit Parameter Maximum supply voltage Maximum supply current Flow-in current (Indicator drive current) Flow-out current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max ICC max ILED I23 Pd max Topr Tstg Conditions Pins 3, 7, 8, 11, 20, 21 Pins 3 + 20 + 21 Pins 7, 8 Pin 23 Ta%70C Ratings 9 50 20 0.1 500 -20 to +70 -40 to +125 Unit V mA mA mA mW C 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 = 25C Parameter Recommended supply voltage Operating voltage range Symbol VCC VCCop Conditions Ratings 4.5 3.0 to 8.0 Unit V 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 = 25C, VCC = 4.5 V, See specified Test Circuit. Parameter Symbol Conditions min typ 13 28 154 0 70 23 32 2.4 226 0 0.45 80 33 48 0.45 3.9 2.7 No input VIN = 23 dB, 30% mod. VIN = 80 dB, 30% mod. VIN = 23 dB, 30% mod. VIN = 80 dB, 30% mod. VIN = 80 dB, 30% mod. VIN = 100 dB, 30% mod. IL = 1 mA Note : Be fully careful of dielectric breakdown. 16 29 78 17 50 9.5 54 126 21 55 0.45 0.6 24 1.2 1.5 32 14.5 97 193 1.2 5.4 43 max 20 35 308 1.5 1.2 Unit mA dB mV dB % dB dB dB % % % mA mV mV dB dB % % dB FM characteristics (Mono): fc = 10.7 MHz, fm = 1 kHz Quiescent current ICCO No input -3 dB sensitivity Demodulation output Channel balance Total harmonic distortion Signal to noise ratio LED ON sensitivity -3dBL.S. V0 C.B. THD S/N VLED Referenced to VIN = 100 dB, 100%, down 3 dB VIN = 100 dB, 100% mod. VIN = 100 dB, 100% mod. VIN = 100 dB, 100% mod. VIN = 100 dB, 100% mod. IL = 1 mA FM Characteristics (Stereo) : fc = 10.7 MHz, fm = 1 kHz, L + R = 90%, pilot = 10%, VIN = 100 dB Separation Sep Stereo distortion LED ON level LED OFF level Quiescent current Detection output Signal to noise ratio Total harmonic distortion LED ON sensitivity THD (MAIN) VLED-on VLED-off ICCO VO 1 V O2 S/N1 S/N2 THD1 THD2 VLED AM Characteristics: fc = 1000 kHz, fm = 1 kHz Note : For further details, refer to the separate catalog of the LA1805. No.3210-2/4 LA1806 Equivalent Circuit Block Diagram 5:Not required for the LA1805 Unit (resistance: ) 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. 5 :Not required for the LA1805 Unit (resistance: ,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 |
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