Ordering number : ENN*6855 LA1824 Monolithic Linear IC LA1824 Single Chip Tuner IC for Use in Radio/Cassette Products with Manual Tuning Preliminary Package Dimensions The LA1824 is a single-chip tuner IC that incorporates unit : mm FM/AM and MPX circuits. 3067A The built-in MPX-VCO allows this IC to be adjustment free and to require no external components. Features • • • FM, AM and MPX integrated in a single-chip. Adjustment free MPX-VCO : No ceramic resonator used. FM front-end : Local OSC voltage reduced. FM stereo and FM/AM tuning indicator output provided. Package : DIP-24S. 13 7.62 6.4 • 24 1 12 0.9 0.51min (3.25) 3.3 3.9max • [LA1824] 21.0 0.25 Overview Functions (0.71) 0.48 1.78 : RF amplifier, mixer, oscillator, IF amplifier, detector, signal meter, tuning indicator. AM : RF amplifier, mixer, oscillator (with ALC), IF amplifier, detector, AGC, tuning indicator. MPX : PLL stereo decoder, stereo indicator, VCO on chip, forced monaural. FM 0.95 SANYO : DIP-24S(300mil) Specifications Maximum Ratings at Ta = 25 °C Parameter Symbol Maximum supply voltage Conditions Ratings Unit VCC max Indicator drive current ILED Pd max Allowable power dissipation Pin 8, 9 Ta ≤ 70 °C 7.0 V 20 mA 300 mW Operation temperature Topg --20 to +70 °C Ambient temperature Tstg --40 to +125 °C Recommended Operating Conditions at Ta = 25 °C Parameter Symbol Recommended supply voltage VCC Operation supply voltage range VCC op Conditions Ratings Unit 4.5 V 2.5 to 6.0 V 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 Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 11201 RM (IM) No.6855-1/10 LA1824 Operating Characteristics at Ta = 25 °C, VCC = 4.5 V, in the specified test using the IC179-2 socket (Yamaichi Electric Co.,Ltd.) FM front-end characteristics at fc = 98 MHz, fm = 1 kHz, 22.5 kHz dev Parameter Local oscillator voltage Input limiting voltage Quieting sensitivity Symbol VOSC 3 dB L.S. Q.S. Conditions Ratings min No input, fosc = 108.7 MHz, the pin 20 output typ Unit max 15 30 Referenced to VIN = 60 dBµV EMF, 22.5 kHz dev, a 3 dB down input -- 13 -- dBµV EMF 30 dB quieting sensitivity -- 12 -- dBµV EMF with FET buffer gain ·=· --10 dB 60 mVrms FM IF characteristics (monaural) at fc = 10.7 MHz, fm = 1 kHz, 75 kHz dev Parameter Quiescent current Demodulation output Symbol ICC(FM) VO Signal-to-noise ratio S/N Total harmonic distortion (mono) THD Input limiting voltage Station detector sensitivity 3 dB L.S. SD-ON Conditions Ratings min typ Unit max No input 7.0 13.7 20 mA VIN = 100 dBµV, the pin 16 output 130 190 260 mVrms VIN = 100 dBµV, the pin 16 output VIN = 100 dBµV, the pin 16 output 62 70 -- dB -- 0.4 1.2 % 21 32 42 dBµV -- 33 -- dBµV Referenced to VIN = 100 dBµV, 75 kHz dev, a 3 dB down input No mod, an input level great enough to turn on the station detector FM IF characteristics (stereo) at fc = 10.7 MHz, fm = 1 kHz, L + R = 90 %, Pilot = 10 % Parameter Separation Symbol SEP Stereo on level Total harmonic distortion (main) ST-ON THD Conditions Ratings min VIN = 100 dBµV, L modulation, the pin 16 output/the pin 17 output VIN = 100 dBµV, the pilot modulation search that V8 < 0.5 V typ Unit max 25 40 -- dB 1.5 3.5 6.3 % -- 0.5 1.2 % VIN = 100 dBµV, Main modulation, the pin 16 output AM characteristics at fc = 1000 kHz, fm = 1 kHz, 30 % modulation Parameter Quiescent current Detector output Signal-to-noise ratio Total harmonic distortion Station detector sensitivity Symbol ICC(AM) Conditions Ratings min typ Unit max No input 5.0 8.5 15 mA VO(1) VIN = 23 dBµV, the pin 16 output 18 40 70 mVrms VO(2) S/N(1) VIN = 80 dBµV, the pin 16 output 50 85 130 mVrms VIN = 23 dBµV, the pin 16 output VIN = 80 dBµV, the pin 16 output 15 20 -- dB 47 53 -- dB -- 0.5 1.3 % -- 0.5 1.5 % -- 26 -- S/N(2) THD(1) THD(2) SD-ON VIN = 80 dBµV, the pin 16 output VIN = 107 dBµV, the pin 16 output No mod, an input level great enough to turn on the station detector dBµV No.6855-2/10 AM Ant FM RF 24 1 AM RF B.P.F FM Ant + 2 REG GND2 23 3 AM OSC AM MIX FM MIX 22 4 VCC1 VCC2 21 5 FM OSC 20 6 GND1 19 TRIG + 7 ST SW 18 AM / FM TUN 8 TUN LED 16 FM ST L-OUT 9 ST LED FF DECODER VCO 17 R-OUT AM + 10.7MHz 10 FM IF S-METER FF PHASE COMP 15 + MN 14 450kHz 11 AM-IF DET PILOT DET FF FM + ST + 12 AGC DET 13 V-AGC VCC LA1824 Block Diagram ILA00376 No.6855-3/10 8pF + 0.047µF 2 1 10µF AM antenna 23 24 1000pF 3 22 AM-OSC FM RF 390pF 18pF + 100µF 10.7MHz 8pF 10Ω 0.047µF 5 4 FM-IFT 20 FM OSC 47000pF 21 22pF B.P.F 47000pF 10Ω 6 18 AM-IFT 100Ω 7 LA1824 19 4.7µF + 1800pF 450kHz 6800pF 8 17 6800pF AM / FM SD 1kΩ R-OUT 9 16 1kΩ FM ST L-OUT 0.47µF + 3.3kΩ FM antenna 10 FM 0.1µF AM 15 + 11 22µF ST 3.3µF MN 14 + + 12 13 FM-DET Sample Application Circuit Diagram VCC=4.5V 2.2kΩ LA1824 ILA00377 No.6855-4/10 LA1824 Coil specifications (bottom view) • FM-BPF : SA-309 (Sumida) 88 MHz to 108 MHz • FM-RF : SA-149 (Sumida) 3.6 mm diameter, air core, 0.6 mm wire, 4.5 T • FM-OSC : SA-151 (Sumida) 3.6 mm diameter, air core, 0.6 mm wire, 3.5 T • FM-MIX : SA-165 (Sumida) : A119ACS-19458X (Toko) 4-6 2T S S S VCC 3 VCC 3 4 CF 4 CF 3-1 12 T 0.12UEW 2 2 fo = 10.7 MHz 6 GND 6 GND pin5 1 pin5 1 Qo ≥ 50 S ILA00382 ILA00378 100 pF internal • FM-DET : SA-1134 (Sumida) : A119ACS-19459Z (Toko) pin13 3 4 2 VCC 1 S • 6 ILA00379 AM-OSC : SA-181 (Sumida) S PVC 3 4 pin3 GND 1 6 VCC S ILA00380 AM-MIX : SA-1136 (Sumida) 3-2 122 T S 4 CF 4-6 9T 2-1 62 T VCC 2 0.06UEW 6 GND pin7 1 fo = 450 kHz, Qo ≥ 65 ILA00381 180 pF internal • FM-IF filter : SFE10.7MS2 (Murata) • AM-IF filter : SFU450B (Murata) • Poly-varicon : FT-2217 (Toko) • MW Bar-antenna : C8E-A0105 (Toko) 1-2 67 T 3-4 9T fo = 796 kHz S S 1 2 3 4 Qu = 180 min PVC GND pin1 pin2 L = 260µH S 3 pin13 3 4 1-3 11 T 0.1-2UEW fo = 10.7 MHz Qo ≥ 70 82 pF internal 2 VCC 1 S 6 ILA00379 : L7BRS-3132AQ (Toko) 6-4 37 T 3-1 74 T 0.06UEW fo = 796 kHz Qo ≥ 80 L = 140 µH 2 • 1-3 12 T 0.10UEW fo = 10.7 MHz Qo ≥ 70 82 pF internal 3-1 10 T 4-6 2T 0.1-2UEW fo = 10.7 MHz Qo ≥ 60 100 pF internal S PVC 3 3-1 6-4 0.06-2UEW fo = 796 kHz Qo ≥ 65 L = 140 µH 4 pin3 2 GND 1 6 VCC S ILA00380 64 T 32 T : PCFAZ-082 (Toko) 3 S 4 VCC 2 pin7 1 S GND 6 ACFA-450L08 ILA00383 1-2 47 T 2-3 100 T 4-6 12 T fo = 450 kHz 180 pF internal With AM-IF filter ILA00384 No.6855-5/10 LA1824 Pin Descriptions and Quiescent Voltage at VCC = 4.5 V Quiescent Pin Function voltage (V) Equivalent circuit number AM FM Remarks 2 1 AM-RF input 1.3 1.3 Connect the AM antenna coil between this pin and pin 2 (Reg) 1 ILA00307 2 2 Reg 1.3 1.3 ILA00308 3 3 AM-OSC 4.5 4 Connect the AM oscillator coil between this pin and pin 4 (VCC1) 4.5 ILA00309 4 VCC1 4.5 4.5 AM/FM-IF/MPX block VCC 4 5 FM-MIX output 4.5 5 Connect the FM mixer coil between this pin and pin 4 (VCC1) 4.5 ILA00385 6 GND1 0 0 AM/FM-IF/MPX block GND 7 7 AM-MIX output 4.5 4 Connect the AM mixer coil between this pin and pin 4 (VCC1) 4.5 ILA00386 No.6855-6/10 LA1824 Pin number Function Quiescent voltage (V) AM FM Equivalent circuit Remarks 8 Active-low 8 Tuning indicator 4.5 4.5 Open-collector output can directly drive LED (IC max = 20 mA) ILA00387 Active-low 9 9 Stereo indicator and AM IF output 4.5 Open-collector output can directly drive LED (IC max = 20 mA) 4.5 ILA00388 AM-IF signal is output in AM mode 10 10 FM-IF input 1.3 1.3 Rin = 330 Ω Rin 2 ILA00314 11 11 AM-IF input 1.3 1.3 Rin = 2 kΩ Rin 2 ILA00315 12 AM-AGC output and FM signal meter output 0.7 0.2 Internal load resistance R = 16.6 kΩ 12 R ILA00316 13 13 FM-DET 4.5 Connect the FM detector coil between this pin and pin 4 (VCC1) 4.5 ILA00317 No.6855-7/10 LA1824 Pin number Function Quiescent voltage (V) AM FM Equivalent circuit Remarks 14 14 Pilot detector filter (forced mono) 2.9 Forced monaural mode when pin 14 is connected to ground 3.8 ILA00318 15 15 Phase comparator filter (AM/FM switch) 0 FM mode is when pin 15 is open, and AM mode is when pin 15 is connected to ground 3.8 ILA00319 16 L output 1.4 17 16 1.4 Rout R output Rout = 7.5 kΩ ( 17 ) ILA00320 18 18 MPX input 1.3 1.3 Rin = 50 kΩ Rin ILA00321 19 AM/FM detector output Output impedance AM : Rout = 50 kΩ FM : Rout = 500 Ω Rout(FM) 0.5 19 1.5 Rout(AM) ILA00322 21 20 FM-OSC 4.5 The channel separation can be adjusted with an external capacitor connected between this pin and ground 20 Connect the FM oscillator coil between this pin and pin 21 (VCC2) 4.4 ILA00323 No.6855-8/10 LA1824 Pin number Quiescent voltage (V) AM FM Function Equivalent circuit Remarks FM-FE block VCC R 21 VCC2 4.5 4.4 21 4 Power is supplied pin 4 (VCC1) via external resistor (10 Ω) ILA00324 22 22 FM-RF output 4.5 4.4 24 FM-RF input 0 1.0 21 Connect the FM-RF coil between this pin and pin 21 (VCC2) 24 Rin = 500 Ω Rin ILA00325 GND2 0 FM-FE block ground FM Characteristics 0 THD -- % AM out --60 0 20 40 60 80 THD(75k) 100 120 0 --20 140 20 40 60 80 Signal THD -- % 3 2.5 1.0 VAGC 0% D8 1 --80 --100 0.5 TH 0 20 40 60 80 Ant input -- dB/m 100 120 2.0 1.5 2 Noise 0 140 ILA00391 VCC=4.5V fc=1000kHz fm=1kHz, 30%mod 4 --60 120 AM Characteristics 5 --40 100 Ant input -- dBµV EMF THD30% Output -- dBm THD(22.5k) 0 ILA00390 AM Characteristics VCC=4.5V fc=1000kHz fm=1kHz, 30%mod --20 2 1 Ant input -- dBµV EMF 0 3 Noise VCC=4.5V fc=98MHz fm=1kHz, 22.5kHz dev AM=30%mod --100 --20 VCC=4.5V fc=98MHz fm=1kHz 4 --40 --80 FM Characteristics 5 Signal --20 Output -- dBm 0 140 ILA00392 0 20 40 60 80 Ant input -- dB/m 100 120 0 140 ILA00393 No.6855-9/10 VAGC -- V 23 LA1824 10 7 5 3 FM st Characteristics 50 Sep R 40 Sep -- dB 2 THD -- % FM st Characteristics 60 VCC=4.5V fc=98MHz, VIN=60dBµV EMF 75kHz dev, L+R=90% Pilot=10% Sub 1.0 7 Mono 5 Main ST Sep L 30 20 3 VCC=4.5V fc=98MHz, VIN=60dBµV EMF 75kHz dev, L+R=90% Pilot=10% 10 2 0.1 0.01 2 3 5 7 0.1 2 3 5 7 1.0 2 3 fm -- kHz 5 7 10 2 3 5 7 100 ILA00394 0 0.01 2 3 5 7 0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 fm -- kHz 5 7 100 ILA00389 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 or all SANYO products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be expor ted without obtaining the expor t license from the authorities concerned 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 January, 2001. Specifications and information herein are subject to change without notice. PS No.6855-10/10