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| Ordering number : EN5658A LA1827M Monolithic Linear IC LA1827M Single-Chip Tuner IC for Portable Radio /Cassette Recorders Overview The LA1827M is a single-chip tuner IC for FM and AM with built-in MPX-VCO which requires no adjustment and no external parts. Package Dimensions unit:mm 3112-MFP24S [LA1827M] 24 13 Functions * AM: RF amplifier, mixer, oscillator, IF amplifier, detector, AGC, tuning display output RF amplifier, mixer, oscillator IF amplifier, quadrature detector, signal strength meter, tuning display output PLL stereo decoder, stereo display output, forced mono, internal VCO * FM-FE: * FM-IF: * MPX: 1.8max 12.6 1.5 0.15 * Single-chip tuner with AM, FM-FE/FM-IF, MPX circuitry * Built-in adjustment-free MPX-VCO (no ceramic oscillator required) * FM-DET, adjustment-free (using ceramic discriminator) * Reduced FM-FE oscillation level * FM stereo indication and AM/FM tuning indication pins provided. 0.35 1.0 0.8 0.1 Features SANYO:MFP24S Specifications Maximum Ratings at Ta = 25C Parameter Maximum supply voltage Indicator drive current Allowable power dissipation Operating temperature Storage temperature Symbol VCCmax ILED Pd max Topr Tstg Ta 70C Conditions Ratings 7.0 20 250 -20 to +70 -40 to +125 Unit V mA mW C C Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability such as life-support systems aircraft s control systems or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed even momentarily rated values (such as maximum ratings operating condition ranges or other parameters) listed in products specifications of any and all SANYO products described or contained herein. SANYO Electric Co., Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 71598RM(KI) No. 5658-1/12 0.625 1 12 6.35 7.6 5.4 Ordering number : EN5658A LA1827M Operating Conditions at Ta = 25C Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCCop Conditions Ratings 3.0 1.8 to 6.0 Unit V V Operating Characteristics at Ta = 25C, Vcc = 3.0V, in specified test circuit, using Yamaichi Electronics socket IC51-0242-543 Parameter Symbol Conditions Ratings typ Unit min max [FM-FE characteristics]: fc = 98 MHz, fm = 1 kHz, 30% mod. Local oscillator voltage VOSC No input, fOSC=108.7 MHz, pin 20 output *Measured with FET buffer (-10 dB gain) 3 dB sensitivity Effective sensitivity 3dB LS Qs 60 dB, 30% mod. output, -3 dB input Input for S/N = 30 dB 13 15 dB dB 35 70 140 mVrms [FM-IF monaural characteristics]: fc = 10.7 MHz, fm = 1 kHz, 100% mod. Quiescent current Demdulator output Signal-to-noise ratio Total harmonic distortion (mono) 3 dB sensitivity TU-LED sensitivity ICCO (FM) VO S/N THD 3 dB LS SD-ON No input 100 dB, pin 16 output 100 dB, pin 16 output 100 dB, pin 16 output 100 dB, 100% mod.output, -3 dB input No modulation 8 120 63 16 160 71 0.5 35 45 1.5 42 23 215 mA mVrms dB % dB dB [FM-IF stereo characteristics]: fc = 10.7 MHz, fm = 1 kHz, L+R = 90%, pilot = 10% Separation ST-LED sensitivity Total harmonic distortion (main) SEP ST-ON THD 100 dB, L-mod, pin 16/pin 17 output 100 dB, pilot modulation for pin 8 voltage < 0.5V 100 dB, main modulation, pin 16 output 25 1.5 40 3.5 0.5 4 12 52 15 47 7 25 78 20 53 0.5 30 1.5 6.3 1.5 12 40 117 dB % % mA mVrms mVrms dB dB % dB [AM characteristics]: fc = 1000 kHz, fm = 1 kHz, 30% mod. Quiescent current Detector output ICCO (AM) VO1 VO2 Signal-to-noise ratio S/N1 S/N2 Total harmonic distortion TU-LED sensitivity THD SD-ON No input 23 dB, pin 16 output 80 dB, pin 16 output 23 dB, pin 16 output 80 dB, pin 16 output 80 dB, pin 16 output No modulation Pin Description and Quiescent Voltage at Vcc = 3.0V Quiescent Pin number Function voltage (V) AM FM 2 AM antenna coil connected between pins 1 and 2 (reg) Equivalent circuit Remarks 1 AM RF input 1.2 1.2 1 A10836 2 Reg 1.2 1.2 2 A10837 Continued on next page 71598RM(KI) No. 5658-2/12 Ordering number : EN5658A LA1827M Continued from preceding page Quiescent Pin number Function voltage (V) AM FM Oscillator coil connected 3 4 between pins 3 and 4 (VCC1) Equivalent circuit Remarks 3 AM-OSC 3.0 3.0 A10838 4 VCC1 3.0 3.0 AM/FM-IN/MPX block VCC ROUT = 270 5 FM mixer output 1.4 1.2 6 GND1 0 0 AM/FM-IN/MPX section ground Mixer coil connected 7 4 between pins 7 and 4 (VCC1) 7 AM mixer output 3.0 3.0 A10840 Active low 8 8 Tu-LED output 3.0 3.0 Open-collector output can directly drive LED (IC max = 20 mA) A10841 Active low 9 ST-LED output 9 and AM-IF output 3.0 3.0 Open-collector output can directly drive LED (IC max = 20 mA) In AM operation, AM-IF signal (450 kHz) is output here. A10842 Continued on next page 71598RM(KI) No. 5658-3/12 Ordering number : EN5658A LA1827M Continued from preceding page Quiescent Pin number Function voltage (V) AM FM RIN = 330 10 10 FM-IF input 1.2 1.2 2 A10843 Equivalent circuit Remarks RIN RIN = 2 k 11 11 AM-IF input 1.2 1.2 2 A10844 RIN Internal load resistance R = 16.6 k AM-AGC output 12 and FM signal meter output 0.5 0.1 R 12 A10845 Reccomended ceramic discriminator CDF107F-AE-019 (Toko) CDA10.7MG83 (Murata) 13 FM detector 2.4 2.2 14 Pilot tone 14 detector filter and forced mono switching A10847 1.7 2.3 Mono mode is forced on by connecting pin 14 to ground. 15 Phase 15 comparator filter and AM/FM switching A10848 0 2.3 FM reception mode is enabled when pin 15 is open. AM reception mode is enabled when pin 15 is connected to ground. Continued on next page 71598RM(KI) No. 5658-4/12 Ordering number : EN5658A LA1827M Continued from preceding page Quiescent Pin number Function voltage (V) AM FM ROUT = 7.5 k Equivalent circuit Remarks 16 17 L output R output 16 1.2 1.2 ROUT 17 A10849 RIN = 50 k 18 18 MPX input 1.2 1.2 RIN A10850 Output impedance AM: ROUT = 50 k FM detector 19 output and AM detector output 0.4 1.2 ROUT(FM) 19 ROUT(AM) A10851 FM: ROUT = 500 Capacitance between pin 19 and ground should be optimzed for the best separation characteristics. 21 Colpitts oscillator circuit FM oscillator coil is connected to pin 20. 20 FM-OSC 3.0 2.9 20 A10852 FM-FE block VCC Power is supplied from pin 4 R 21 VCC2 3.0 2.9 21 4 A10853 (VCC1) via external resistor (10 ). 22 FM-RF output 3.0 2.9 FM RF coil is connected between pins 22 and 21 (VCC2). 24 FM-RF input 0 0.8 RIN = 1.8 k A10854 23 GND2 0 0 FM-FE brock ground 71598RM(KI) No. 5658-5/12 Ordering number : EN5658A LA1827M Coil specifications (bottom view) * FM-BPF: SA-309 (Sumida) 88 to 108 MHz * FM-RF: SA-149 (Sumida) 3.6 mm dia., air core, 0.6 mm wire, 4 1/2 T * FM-OSC: SA-151 (Sumida) 3.6 mm dia., air core, 0.6 mm wire, 3 1/2 T * FM-IF filter, discriminator: SK107M1-AE-10, CDF107F-AE-019, Rs=510 (Toko) SEF10, 7MA5, CDA10.7MG83, Rs=470 (Murata) * AM-OSC: SA-181 (Sumida) * L7BRS-3132AQ (Toko) - 37T - 74T 0.06 UEW f0 = 796 kHz Q0 80 L = 140H - 64T - 32T 0.06 2UEW f0 = 796 kHz Q0 65 L = 140 H * AM-IFT: SA-1136 (Sumida) * PCFAZ-082 (Toko) - 122T - 9T - 62T 0.06UEW f0 =450 kHz Q0 65 With 180 pF internal capacitor - 47T - 100T - 12T f0 = 450 kHz With 180 pF internal capacitor With AM-IF filter * AM-IF filter: SFU450B (Murata) * Poly-varicon: FT-2217 (Toko) PVC-22KTL (Mitsumi) * MW Bar- antenna: TYA-1005 (Mitsumi) - 68T - 9T f0 = 796 kHz Q0 230 L = 260 H For DUT PCB * FM-Discriminator: CDA10.7 MG1-B (Murata) * AM-OSC: SA-1135 (Sumida) - 11T - 99T - 3T 0.06UEW f0 = 796 kHz Q0 80 L = 270 H 71598RM(KI) No. 5658-6/12 Ordering number : EN5658A LA1827M Block Diagram 71598RM(KI) No. 5658-7/12 Ordering number : EN5658A LA1827M Test Circuit 71598RM(KI) No. 5658-8/12 Ordering number : EN5658A LA1827M Sample Application Circuit 71598RM(KI) No. 5658-9/12 Ordering number : EN5658A LA1827M FM characteristics Total harmonic distortion, THD - % S meter voltage, VSM- V 0 -10 -20 4 FM characteristics 3 Output - dBm -30 -40 -50 -60 -70 -80 -90 -100 -20 0 20 40 60 80 100 120 2 1 0 -20 0 20 40 60 80 100 120 ANT input - dB 80 70 60 ANT input - dB 0 4 FM Vcc characteristics FM Vcc characteristics 20 Demodulation Output, Vo - dBm -10 -20 -30 -40 -50 -60 -70 -80 7 Total harmonic distortion, THD - % 3 15 50 40 30 20 10 0 0 1 2 3 4 5 6 2 10 1 5 0 0 1 2 3 4 5 6 0 7 Power supply voltage, Vcc - V 80 70 60 Power supply voltage, Vcc - V 10 FM reception characteristics Total harmonic distortion, THD - % MPX THD characteristics 7 5 3 2 Sensitivity - dB S/N - dB 50 40 30 20 10 0 85 90 95 100 105 110 1.0 7 5 3 2 0.1 0.01 2 3 5 7 0.1 23 5 7 1.0 23 5 7 10 23 Reception frequency, fr - MHz 60 Modulation frequency, fm - kHz 0 -10 MPX Sep characteristics AM characteristics 50 -20 -30 Separation - dB Output - dB 40 -40 -50 -60 -70 -80 30 20 10 -90 0 0.01 2 3 5 70.1 23 5 7 1.0 23 5 7 10 23 -100 0 20 40 60 80 100 120 140 Modulation frequency, fm - kHz ANT input, - dB/m 71598RM(KI) No. 5658-10/12 Quiescent Current, Icco-mA Sensitivity - dB S/N - dB Ordering number : EN5658A LA1827M 4 AM characteristics Detector output, beat output - dBm 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 AM beat output Total harmonic distortion, THD - % AGC voltage, VAGC - V 3 2 1 0 0 20 40 60 80 100 120 140 -100 0 20 40 60 80 100 120 140 ANT input - dB/m 80 70 60 ANT input - dB/m 0 -10 4 AM VCC characteristics AM VCC characteristics 20 Total Harmonic distortion, THD - % -20 -30 -40 -50 Maximum sensitivity (input for 20 mV output) 3 15 50 40 30 20 10 0 0 1 2 3 4 5 6 7 2 10 -60 -70 -80 8 1 5 0 0 1 2 3 4 5 6 7 0 8 Power supply voltage, Vcc - V 80 70 60 Power supply voltage, Vcc - V AM Reception characteristics Sensitivity - dB/m S/N - dB 50 40 30 20 10 0 400 Maximum sensitivity (input for 20 mV output) 600 800 1000 1200 1400 1600 1800 Reception frequency, fr - kHz 71598RM(KI) No. 5658-11/12 PS Quiescent current, ICCO - mA Detector output VO - dBm Sensitivity - dB/m S/N - dB Ordering number : EN5658A LA1827M Specifications of any and all SANYO products described or contained herein stipulate the performance characteristics and functions of the described products in the independent state and are not guarantees of the performance characteristics and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Electric Co. Ltd. strives to supply high-quality high-reliability products. However any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives that could give rise to smoke or fire or that could cause damage to other property. When designing equipment adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design redundant design and structural design. In the event that any and all SANYO products described or contained herein fall under strategic products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of Japan such products must not be exported without obtaining export license from the Ministry of International Trade and Industry in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying and recording or any information storage or retrieval system or otherwise without the prior written permission of SANYO Electric Co. Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement etc. When designing equipment refer to the Delivery Specification for the SANYO product that you intend to use. 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 July, 1998. Specifications and information herein are subject to change without notice. 71598RM(KI) No. 5658-12/12 |
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