Ordering number : ENN6568 Monolithic Linear IC LA1833N, 1833NM System-on-Chip Tuner IC for Home Stereo Systems Overview The LA1833N/NM is an AM/FM IF and MPX system-onchip IC that supports electronic tuning for home stereo systems. It is optimal for use in auto-seek systems that use SD (station detect) and IF counting in parallel. Functions — FM total harmonic distortion detuning characteristics and signal-to-noise ratio improved over those of the LA1833 Package Dimensions unit: mm 3112A-MFP24S • AM: RF amplifier, mixer, oscillator, IF amplifier, detector, AGC, SD, oscillator buffer, IF buffer, and stereo IF output • FM IF: IF amplifier, quadrature detector, S meter, SD, S-curve detector, IF buffer • MPX: PLL stereo decoder, stereo indicator, forced mono, VCO stop, audio muting, adjacent channel interference reduction function, pilot canceller [LA1833N] 0.1 1.5 0.15 0.63 5.4 12 12.5 1.7max 1 7.6 13 24 Features (0.75) SANYO: MFP24S (300 mil) unit: mm 3067A-DIP24S [LA1833NM] 21.0 24 1 0.25 7.62 6.4 13 12 (0.71) 1.78 0.48 3.3 3.9max 0.9 (3.25) • Other features — Pin arrangement nearly identical to that of the LA1832 — AM coil specifications can be the same as those used for the LA1832. — ST operating dynamic range improved over that of the LA1833 1.0 0.35 0.51min • Improvements over the LA1832 — The MPX VCO circuit has been integrated on the same IC (no ceramic element required) — Built-in adjacent channel interference reduction function (114 kHz, 190 kHz) — Built-in pilot canceler function (19 kHz) — AM and FM output levels can be set independently — Improved FM reception characteristics (IF beating improved) 0.95 SANYO: DIP24S (300 mil) 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 D1500RM (OT) No. 6568-1/10 LA1833N, 1833NM Specifications Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings VCC max Maximum supply voltage Allowable power dissipation Pd max Unit 9 V (LA1833N) 400 mW (LA1833NM) (Ta ≤ 45°C) 400 mW (LA1833NM) (Ta = 70°C) 270 mW Operating temperature Topr –20 to +70 °C Storage temperature Tstg –40 to +125 °C Ratings Unit Operating Conditions at Ta = 25°C Parameter Symbol Recommended supply voltage VCC Operating supply voltage range VCC op Conditions 5 V 4 to 8 V Electrical Characteristics at VCC = 5 V, in the specified test circuit Parameter Symbol Conditions Ratings min typ max Unit [FM Mono Characteristics: fc = 10.7 MHz, fm = 1 kHz] Current drain Demodulator output Channel balance ICCO-FM 18 28 38 mA VO-FM No input 100 dBµ, 100% mod. The pin 13 output 210 330 420 mVrms C.B-mono 100 dBµ, 100% mod. The ratio (pin 13 output)/(pin 14 output) –1.5 0 1.5 dB 0.5 1.5 Total harmonic distortion (mono) THD-FM 100 dBµ, 100% mod. The pin 13 output Signal-to-noise ratio S/N-FM 100 dBµ, 100% mod. The pin 13 output 70 78 dB 100 dBµ, AM = 30% mod. fm = 1 kHz 45 63 dB AM rejection ratio Input limiting voltage AMR 100 dBµ, 100% mod. The pin 13 output –3dBL. S Referenced to the output, when the input is down by –3 dB SD LED on sensitivity SD-On-FM IF counter buffer output VIFBuff-FM 100 dBµ, the pin 10 output Muting attenuation Mute Att 34 42 % dBµ 32 42 52 dBµ 200 275 400 mVrms 100 dBµ, 100% mod. fm = 1 kHz 76 dB dB [Stereo Characteristics: fc = 10.7 MHz, 100 dBµ, fm = 1 kHz, L + R = 90%, pilot = 10%] Separation Stereo on level Total harmonic distortion (main) Adjacent channel interference rejection ratio Adjacent channel interference rejection ratio Carrier leakage Sep ST-on Left channel modulated, the ratio (pin 13 output)/(pin 14 output) 28 42 The pilot modulation level such that V7 becomes less than 0.7 V 1.5 3.5 5.5 % 0.7 1.5 % THD-main L + R modulation, the pin 13 output Brej-3rd fs = 113 kHz, Vs = 90%, Pilot = 10%; the pin 13 output with respect to an L – R modulated 1 kHz demodulator output 36 dB Brej-5th fs = 189 kHz, Vs = 90%, Pilot = 10%; the pin 13 output with respect to an L – R modulated 1 kHz demodulator output 41 dB dB CL L + R = 90%, De-emph asis 50 µs, Pilot = 10% 38 44 No input 11 22 33 mA 40 80 160 mVrms 230 mVrms [AM Characteristics: fc = 1000 kHz, fm = 1 kHz] Current drain Detector output Detector output Signal-to-noise ratio Total harmonic distortion SD LED on sensitivity ICCO-AM VO-AM (1) 23 dBµ, 30% modulation. The pin 13 output VO-AM (2) 80 dBµ, 30% modulation. The pin 13 output 90 160 S/N-AM (1) 23 dBµ, 30% modulation. The pin 13 output 16 21 S/N-AM (2) 80 dBµ, 30% modulation. The pin 13 output 48 54 dB dB THD-AM (1) 80 dBµ, 30% modulation. The pin 13 output 0.4 1.1 THD-AM (2) 100 dBµ, 30% modulation. The pin 13 output 0.5 1.3 % 14 24 34 dBµ SD-On-AM Local oscillator buffer output VOSC-AM No input, the pin 24 output 140 200 IF counter buffer output VIFBuff-AM 80 dBµ, no modulation, the pin 10 output 140 285 % mVrms 400 mVrms No. 6568-2/10 LA1833N, 1833NM Pin Descriptions Pin No. Pin Voltage (V) Functional description Equivalent circuit 1 1 FM IF input Vreg The input impedance, ri, is 330 Ω 3 ILA00220 2 2 AM MIX output VCC The mixer coil is connected between pins 2 and 9 ILA00221 3 3 REG 2.1 Vreg = 2.1 V ILA00222 4 4 AM IF input Vreg The input impedance, ri, is 2 kΩ ILA00223 5 GND 0 6 Tu-LED 6 ST-LED 7 Also functions as the AM stereo IF output VCC 7 These are active-low open-collector outputs. Set up the current flowing in to these pins to exceed 100 µA. ILA00224 Recommended ceramic discriminators 8 FM-DET VCC – 2.1 FCD1070MA11UK2L (TDK) CDA10.7MG86N (Murata Mfg. Co., Ltd.) 8 ILA00225 9 VCC 5.0 AM/FM IF counter output 10 Also functions as a control switch Also functions as the muting switch V10 ≤ 0.5 V: Reception state (normal) 0 1.4 V ≤ V10 ≤ 2.2 V: Muting on state. 10 V10 ≥ 3.5 V: Muting on and IF counter on (seek state). ILA00226 Continued on next page. No. 6568-3/10 LA1833N, 1833NM Continued from preceding page. Pin No. Pin Voltage (V) Functional description Equivalent circuit 11 Phase comparator filter connection 11 Also functions as the FM/AM switching input VCC – 1.0 The IC switches to AM mode if a current in excess of 200 µA flows from this pin ILA00227 12 Pilot detector filter connection 12 Also functions as the forced mono setting VCC – 1.0 The IC switches to forced mono mode if a current in excess of 50 µA flows from this pin. The VCO circuit is stopped if a current in excess of 200 µA flows from this pin. Also functions as the VCO stop control ILA00228 13 Left output 14 Right output 1.8 13 The output impedance, ro, is 3.3 kΩ ( 14 ) ILA00229 15 15 Pilot canceller output Vreg 3 ILA00230 16 Decoder input Vreg RNF Inverting input RNF = 20 kΩ 16 ILA00231 17 17 PLL input Vreg The input impedance, ri, is 20 kΩ ILA00232 18 The output impedance, ro, is 2.3 kΩ. 18 FM demodulator output Vreg The separation can be adjusted by changing the value of the capacitor connected between this pin and ground. ILA00233 100V 19 AM detector output 0 (FM) 1.5 (AM) The output impedance, ro, is 10 kΩ 19 ILA00234 Continued on next page. No. 6568-4/10 LA1833N, 1833NM Continued from preceding page. Pin No. Pin Functional description Equivalent circuit Internal load resistor R = 13.9 kΩ. S meter 20 Voltage (V) 0.2 (FM) Also functions as the AM AGC 0.9 (AM) 20 The SD response speed during seek operations is set by the value of the external capacitor connected to pin 20. R ILA00235 21 21 AM RF-IN Vreg Pin 21 and pin 22 (the AFC voltage) are used at the same potential ILA00236 22 AFC Vreg The FM SD bandwidth can be adjusted by an external resistor connected between pin 22 and pin 3 (the regulator voltage). 22 Note: A bandwidth of 180 kHz or higher is appropriate for the FM SD bandwidth. ILA00237 23 The oscillator coil is connected between pin 23 and pin 9 (the VCC voltage). 23 OSC VCC Note: The oscillator coil impedance (secondary side) must be at least 5 kΩ. ILA00238 Oscillator buffer 24 Also functions as the FM SD adjustment VCC – 1.4 The FM SD sensitivity can be adjusted with an external resistor on pin 24. R = 200 Ω R 24 Note: The resistance of the pin 24 external resistor must be at least 3.3 kΩ. ILA00239 No. 6568-5/10 FM-IN (10.7MHz) + VT 1 FM IF LEVEL DET BUFF ALC 24 FM SD ADJ FM BAND-W OSC BUFF 2 FM DET 22 3 REG AM MIX 450kHz S-CURVE AM OSC 23 OSC + AM / FM IF BUFF 4 V-SM AM IF AM RF. AMP 21 RF AM DET 5 GND TUNING DRIVE COMP AGC 20 + 6 7 18 ST-LED AM stereo IF output TU-LED 19 + 8 VCO 304kHz P-DET Ø 17 9 VCC AM / FM IF-BUFF FF 38k STEREO SW DECODER ANTI-BIRDIE 16 10 15 SEEK MUTE FF π 19k∠ 2 R + 11 14 + AM FF 19k∠0 12 MONO PILOT DET 13 + FM PILOT CANCEL L VCC (4.0 to 8.0 V) ST LA1833N, 1833NM Block Diagram ILA00240 No. 6568-6/10 5.6kΩ 1 * * 24 + 22 * * 3 23 * * 2 HW50425 0.047µF 50Ω HW6215 + 4 * * 21 5 * 20 22µF 18 V-SD TU-LED 6 * V-ST ST-LED AM IF * 7 10µF 20kΩ + 16 * 9 17 * 8 MFP = 33 20kΩ CDA10.7MG1-B (For the DUT socket printed circuit board) LA1833N / 1833NM 19 0.01µF + AM / FM IF-BUFF 0.1µF 65kΩ The places that differ with the LA1833 are (1) the value of the pin 8 resistor and (2) the circuits in the vicinity of pins 17 and 18. *: Pins with the same functionality as those on the LA1832. 0.047µF 6.8kΩ 300Ω 1000pF FM-IN (10.7MHz) 75Ω 0.047µF 50kΩ 3.3µF 1000pF 4.7µF 1000pF 39m 50kΩ 39pF 20pF 100Ω OSC BUFF 33µF 1000pF 0.047µF 10 * 15 3kΩ 0.0047µF 0.47µF SEEK NORMAL + AM + 12 11 1µF 13 0.015µF 14 LPF LPF MONO + 1µF Top view 0 dB FM A A 0.015µF AM-IN (1MHz) 5.0 V VCC R OUT L OUT LA1833N, 1833NM Test Circuit ILA00241 No. 6568-7/10 20pF LA1833N, 1833NM FM IF I/O Characteristics FM IF THD Detuning Characteristics 0 3.0 Total harmonic distortion, THD — % S --10 Output, — dBV --20 --30 --40 --50 AM --60 --70 N --80 --90 100 Demodulator output, VO — dBm 0 10 8 --20 6 --40 4 --60 AM N 2 THD 4 0.5 10.6 6 8 Supply voltage, VCC — V 6 THD(30% 0%M o d) Mod) VO 4 2 Noise 3dB 45 0 20 40 60 80 100 Input — dBµ 120 35 30 25 4 SD -- ON Useable sensitivity 20 10 SD - OUT 4 6 Supply voltage, VCC — V 8 1.4 --20 1.2 --30 1.0 0.8 --40 ) (80%Mod THD --50 0.6 THD(30%Mod) 0.4 Noise 0.2 --70 --80 2 4 6 0 10 8 Supply voltage, VCC — V ILA00247 100 40 2 1.6 FM IF Temperature Characteristics AGC 0 10 ILA00245 Vout --60 3 dB limiting sensitivity, 3dBLS — dB Signal-to-noise ratio, SD on, 3dBLS — dB Useable sensitivity, Qs — dBµ SD sensitivity, SD — dBµ --10 ILA00246 60 30 8 AM VCC Characteristics 0 140 70 50 6 0 AM VCC Characteristics 80 LS Qs 40 Supply voltage, VCC — V SD - OUT --80 10.85 ILA00243 SD on range 50 2 Output, — dBµ 8 AGC 10.8 20 SD, AGC — V Total harmonic distortion, THD — % 0 THD (8 Output, — dBV 10 --60 10.75 55 AM Characteristics --40 10.7 FM IF VCC Characteristics ILA00244 20 --20 10.65 60 0 10 --100 2 1.0 Frequency — MHz 12 S --80 1.5 ILA00242 FM IF VCC Characteristics 20 2.0 0 10.55 150 Input — dBµ SD on range, Qs — dBµ 3 dB limiting sensitivity, Qs — dBµ 50 Total harmonic distortion, THD — % 0 2.5 10 ILA00248 80 S/N 60 SD -- ON 40 --3dB LS 20 0 --40 --20 0 20 40 60 Ambient temperature, Ta — °C 80 100 ILA00249 No. 6568-8/10 FM IF Temperature Characteristics 3.0 Channel separation, Sep — dB S-meter voltage, VSM — V Bµ 100d 2.0 1.5 50dBµ 1.0 0dBµ 0.5 0 --40 --20 0 20 40 60 80 Ambient temperature, Ta — °C 80dB 50 Sep 40 2.0 30 1.5 20 1.0 10 0.5 THD --20 0 20 40 60 80 0 100 ILA00251 AM Temperature Characteristics 3.0 µ 2.5 30 20 Pilot ON ILA00250 40 SD 2.5 50 Ambient temperature, Ta — °C AGC voltage, VAGC — V Signal-to-noise ratio, S/N — dB SD on level — dBµ 3.0 0 --40 100 AM Temperature Characteristics 60 N -- O 23dBµ 80dBµ 2.0 20dBµ 1.5 0dBµ 1.0 0.5 10 0 --40 --20 0 20 40 60 80 Ambient temperature, Ta — °C 0 --40 100 TH Channel separation, Sep — dB t 1.0 THD main THD sub 100 1000 10000 Modulation frequency, fm — kHz 20 40 60 80 100 ILA00253 Sep — fm 40 30 Sep R L Sep 20 10 0 10 100000 100 1000 10000 Modulation frequency, fm — kHz ILA00254 THD — VCC 10 0 50 Ds 0.1 10 --20 Ambient temperature, Ta — °C ILA00252 THD — fm 10 100000 ILA00255 Sep, S / N — VCC 100 7 5 Channel separation, Sep — dB Signal-to-noise ratio, S/N — dB Total harmonic distortion, THD — % 3.5 60 2.5 3 2 t s HD 1.0 sub T 7 TH D Total harmonic distortion, THD — % FM ST VCC Characteristics 70 Total harmonic distortion, THD, pilot on — % LA1833N, 1833NM 5 3 ain D m TH 2 Sep R 80 Sep L S/N 60 40 20 THD mono 0.1 0 0 1 2 3 4 5 6 Supply voltage, VCC — V 7 8 9 ILA00256 2 4 6 8 Supply voltage, VCC — V 10 ILA00257 No. 6568-9/10 LA1833N, 1833NM VL on, off — VCC 3.0 8 Capture Range Characteristics CR+ 6 Capture range, CR — % Stereo sensitivity, VL — % 2.5 VL on 2.0 1.5 VL off 1.0 4 2 0 --2 CR---4 0.5 --6 0 2 4 6 Supply voltage, VCC — V 8 10 ILA00258 --8 10 15 20 25 Pilot input voltage — mV 30 35 ILA00259 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 December, 2000. Specifications and information herein are subject to change without notice. PS No. 6568-10/10