LA1225M

Ordering number : ENN6017 Monolithic Linear IC LA1225M FM IF Detector IC Functions • • • • • IF amplifier Quadrature detector Signal meter SD IF buffer Package Dimensions unit: mm 3086A-MFP10S [LA1225M] 10 6 0.625 1.8 max 0.15 0.55 0.1 1.5 Features • Low-voltage operation (1.8 V or higher) • Supports electronic tuning systems (provides built-in SD output and IF count output functions) • FM detector circuit accepts an even wider input frequency range. (Supports the use of an external phase capacitor.) • Miniature package: MFP-10S 5.15 6.4 4.4 1 5.1 5 0.35 1.0 SANYO: MFP10S Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Ta ≤ 80°C Conditions Ratings 9.0 100 –20 to +80 –55 to +150 Unit V mW °C °C Operating Conditions at Ta = 25°C Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCC op Conditions Ratings 3.0 1.8 to 8.0 Unit V 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 32400TN (OT) No. 6017-1/8 LA1225M Operating Characteristics at Ta = 25°C, VCC = 3.0 V, fc = 10.7 MHz Parameter Current drain Demodulator output Total harmonic distortion Signal-to-noise ratio 3 dB sensitivity SD sensitivity IF counter buffer output Symbol ICCO VO THD S/N –3 dBL.S SDON VIFBuff No input 100 dBµ, 100% mod., fm = 1 kHz 100 dBµ, 100% mod., fm = 1 kHz 100 dBµ, 100% mod., fm = 1 kHz 100 dBµ, 100% mod., fm = 1 kHz output reference, when the input is –3 dB 0% mod. 100 dBµ 65 19 35 90 Conditions Ratings min 3.0 70 typ 4.0 150 0.5 73 28 50 130 37 65 170 max 5.0 220 0.8 Unit mA mV % dB dBµ dBµ mV Pin Functions and No-Signal Voltage at VCC = 3.0 V Pin No. Function Notes No-signal voltage (V) Equivalent circuit 1 Input impedance 1 IF input RIN = 330 Ω 1.2 RIN 2 A11506 2 Reg Vreg = 1.2 V 1.2 2 A11507 3 GND 0 Open collector output 4 S-meter output The SD sensitivity can be adjusted with an external resistor connected to this pin. 0.1 4 A11508 5 VCC 3.0 Output impedance 6 Demodulated output ROUT = 3 kΩ 1.5 ROUT 6 A11509 Continued on next page. No. 6017-2/8 LA1225M Continued from preceding page. Pin No. Function Notes No-signal voltage (V) Equivalent circuit 7 7 DET The detector coil is inserted between pin 7 and pin 5 (VCC). 3.0 A11510 8 8 Limiter amplifier output Pin 8 and pin 7 (DET) are connected through a capacitor. 2.8 A11511 9 IF buffer output The IF buffer output is turned on when the voltage applied to the (Also used for control SW) pin is the recommended 1.5 V or higher. IF buffer 9 0 Control SW A11512 10 This is an active-low output. 10 SD This is an open-collector output and can directly drive an LED. (ICmax = 20 mA) 1.6 A11513 No. 6017-3/8 Block Diagram STRQ IF Buff DET OUT SD 10 9 8 7 6 SD IF Buff DET LA1225M IF Amp S-METER Reg GND VCC 1 2 3 4 5 FM IF IN + + VSM + VCC A11514 No. 6017-4/8 3.3kΩ STRQ 10kΩ IF Buff 3.0V 1000pF 2pF 9 8 7 6 0.015 µF 3.9kΩ DETcoil; YT-30103 DET OUT Sample Application Circuit SD 0.047 µF 10 LA1225M LA1225M 1 2 3 4 5 FM IF IN + 330Ω 0.047 µF 1 µF + 75Ω 0.047 µF VSM 15kΩ 100 µF 10 µF + VCC = 3.0V 0.047 µF A11515 No. 6017-5/8 LA1225M I/O Characteristics 0 5 I/O Characteristics 2.5 Signal –20 Total harmonic distortion, THD — % 4 2 –40 3 1.5 –60 AM out 2 1 –80 VCC=3.0V fC=10.7MHz fm=1kHz, 75kHzdev 20 40 60 1 0.5 Noise 80 100 120 140 THD 0 0 20 40 60 80 100 120 0 140 –100 0 Input — dBµ 0 Input — dBµ 100 VO — VCC Signal-to-noise ratio, S/N — dB VIN=100dBµ fC=10.7MHz fm=1kHz, 75kHzdev S/N — VCC VIN=100dBµ fC=10.7MHz fm=1kHz, 75kHzdev Output voltage, VO — dBm –5 90 –10 80 –15 70 –20 –25 60 –30 0 2 4 6 8 10 50 0 2 4 6 8 10 Supply voltage, VCC — V THD — VCC 5 Supply voltage, VCC — V –3dBLS, QS — VCC 50 Total harmonic distortion, THD — % 4 Sensitivity (–3 dB LS, QS) — dBµ VIN=100dBµ fC=10.7MHz fm=1kHz, 75kHzdev 45 40 35 30 25 20 15 10 5 0 0 1 2 3 4 5 6 VIN=100dBµ fC=10.7MHz fm=1kHz, 75kHzdev 3 LS QS 2 1 0 0 1 2 3 4 5 6 7 8 9 10 7 8 9 10 Supply voltage, VCC — V SDON — VCC 100 90 80 70 220 Supply voltage, VCC — V VIFBuff — VCC IF counter buffer output, VIFBuff — mV 200 180 160 140 120 100 80 60 0 fC = 10.7 MHz unmodulated VIN=100dBµ fC = 10.7 MHz unmodulated SDON — dBµ 60 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 Supply voltage, VCC — V Supply voltage, VCC — V No. 6017-6/8 S-meter voltage, VSM — V VCC=3.0V fC=10.7MHz fm=1kHz, 75kHzdev VSM Output — dBm LA1225M ICCO — VCC 6 0 VO — Ta VCC=3.0V VIN=100dBµ fC=10.7MHz fm=1kHz, 75kHzdev Quiescent current, ICCO — mA 5 Output voltage, VO — dBm –5 –10 4 –15 3 –20 2 –25 1 0 2 4 6 8 10 –30 –40 –20 0 20 40 60 80 100 Supply voltage, VCC — V S/N — Ta 100 5 Ambient temperature, Ta — °C THD — Ta Total harmonic distortion, THD — % Signal-to-noise ratio, S/N — dB 90 VCC=3.0V VIN=100dBµ fC=10.7MHz fm=1kHz, 75kHzdev 4 VCC=3.0V VIN=100dBµ fC=10.7MHz fm=1kHz, 75kHzdev 80 3 70 2 60 1 50 –40 –20 0 20 40 60 80 100 0 –40 –20 0 20 40 60 80 100 Ambient temperature, Ta — °C –3dBLS, QS — Ta 50 80 Ambient temperature, Ta — °C SDON — Ta VCC=3.0V fC=10.7MHz unmodulated Sensitivity (–3 dB LS, QS) — dBµ 40 VCC=3.0V VIN=100dBµ reference fC=10.7MHz fm=1kHz, 75kHzdev –3dBLS QS 70 30 SDON — dBµ 60 20 50 10 40 0 –40 –20 0 20 40 60 80 100 30 –40 –20 0 20 40 60 80 100 Ambient temperature, Ta — °C VIFBuff — Ta 10 6 Ambient temperature, Ta — °C ICCO — Ta VCC=3.0V IF counter buffer output, VIFBuff — dB 8 6 4 2 0 –2 –4 –6 –8 –10 –40 –20 0 20 40 Quiescent current, ICCO — mA 100 VCC=3.0V VIN=100dBµ fC=10.7MHz (25°C=0dB) 5 4 3 2 60 80 1 –40 –20 0 20 40 60 80 100 Ambient temperature, Ta — °C Ambient temperature, Ta — °C No. 6017-7/8 LA1225M 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 exported without obtaining the export 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 March, 2000. Specifications and information herein are subject to change without notice. PS No. 6017-8/8