LA1833N

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. — FM total harmonic distortion detuning characteristics and signal-to-noise ratio improved over those of the LA1833 Package Dimensions unit: mm 3112A-MFP24S [LA1833N] 24 13 Functions • 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 5.4 12.5 0.15 Features • 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) • 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 0.35 1.0 SANYO: MFP24S (300 mil) unit: mm 3067A-DIP24S [LA1833NM] 21.0 24 13 7.62 6.4 0.1 1.5 (0.75) 0.63 1 12 1.7max 7.6 1 0.9 12 (0.71) 1.78 0.48 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 0.51min 3.3 3.9max (3.25) 0.25 LA1833N, 1833NM Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol VCC max (LA1833N) Allowable power dissipation Pd max (LA1833NM) (Ta ≤ 45°C) (LA1833NM) (Ta = 70°C) Operating temperature Storage temperature Topr Tstg Conditions Ratings 9 400 400 270 –20 to +70 –40 to +125 Unit V mW mW mW °C °C Operating Conditions at Ta = 25°C Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCC op Conditions Ratings 5 4 to 8 Unit V 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 Total harmonic distortion (mono) Signal-to-noise ratio AM rejection ratio Input limiting voltage SD LED on sensitivity IF counter buffer output Muting attenuation ICCO-FM VO-FM C.B-mono THD-FM S/N-FM AMR No input 100 dBµ, 100% mod. The pin 13 output 100 dBµ, 100% mod. The ratio (pin 13 output)/(pin 14 output) 100 dBµ, 100% mod. The pin 13 output 100 dBµ, 100% mod. The pin 13 output 100 dBµ, AM = 30% mod. fm = 1 kHz 70 45 18 210 –1.5 28 330 0 0.5 78 63 34 32 200 42 275 76 42 52 400 38 420 1.5 1.5 mA mVrms dB % dB dB dBµ dBµ mVrms dB 100 dBµ, 100% mod. The pin 13 output –3dBL. S Referenced to the output, when the input is down by –3 dB SD-On-FM VIFBuff-FM 100 dBµ, the pin 10 output Mute Att 100 dBµ, 100% mod. fm = 1 kHz [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) The pilot modulation level such that V7 becomes less than 0.7 V 28 1.5 42 3.5 0.7 36 41 38 44 5.5 1.5 dB % % dB dB dB THD-main L + R modulation, the pin 13 output Brej-3rd Brej-5th CL fs = 113 kHz, Vs = 90%, Pilot = 10%; the pin 13 output with respect to an L – R modulated 1 kHz demodulator output fs = 189 kHz, Vs = 90%, Pilot = 10%; the pin 13 output with respect to an L – R modulated 1 kHz demodulator output L + R = 90%, De-emph asis 50 µs, Pilot = 10% [AM Characteristics: fc = 1000 kHz, fm = 1 kHz] Current drain Detector output Detector output Signal-to-noise ratio ICCO-AM No input 11 40 90 16 48 22 80 160 21 54 0.4 0.5 14 140 140 24 200 285 400 1.1 1.3 34 33 160 230 mA mVrms mVrms dB dB % % dBµ mVrms mVrms VO-AM (1) 23 dBµ, 30% modulation. The pin 13 output VO-AM (2) 80 dBµ, 30% modulation. The pin 13 output S/N-AM (1) 23 dBµ, 30% modulation. The pin 13 output S/N-AM (2) 80 dBµ, 30% modulation. The pin 13 output THD-AM (1) 80 dBµ, 30% modulation. The pin 13 output THD-AM (2) 100 dBµ, 30% modulation. The pin 13 output SD-On-AM VOSC-AM No input, the pin 24 output VIFBuff-AM 80 dBµ, no modulation, the pin 10 output Total harmonic distortion SD LED on sensitivity Local oscillator buffer output IF counter buffer output 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 7 Tu-LED 6 7 ST-LED Also functions as the AM stereo IF output VCC 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 0 V10 ≤ 0.5 V: Reception state (normal) 1.4 V ≤ V10 ≤ 2.2 V: Muting on state. V10 ≥ 3.5 V: Muting on and IF counter on (seek state). ILA00226 10 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 Pilot detector filter connection 12 Also functions as the forced mono setting Also functions as the VCO stop control VCC – 1.0 12 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. ILA00228 13 14 Left output Right output 1.8 The output impedance, ro, is 3.3 kΩ 13 ( 14 ) ILA00229 15 15 Pilot canceller output Vreg 3 ILA00230 16 Decoder input Vreg Inverting input RNF = 20 kΩ 16 RNF 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 0 (FM) 1.5 (AM) 19 AM detector output 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 Voltage (V) Functional description Equivalent circuit S meter 20 Also functions as the AM AGC Internal load resistor R = 13.9 kΩ. 0.2 (FM) 0.9 (AM) The SD response speed during seek operations is set by the value of the external capacitor connected to pin 20. 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). Note: A bandwidth of 180 kHz or higher is appropriate for the FM SD bandwidth. 22 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 Note: The resistance of the pin 24 external resistor must be at least 3.3 kΩ. R 24 ILA00239 No. 6568-5/10 OSC BUFF VT Block Diagram + FM SD ADJ RF + V-SM + R L OSC FM BAND-W 21 20 19 18 17 16 15 14 13 24 23 22 ALC AM RF. AMP AM OSC AGC DECODER ANTI-BIRDIE AM MIX BUFF PILOT CANCEL AM IF AM DET STEREO SW P-DET Ø LEVEL DET AM / FM IF BUFF COMP VCO 304kHz TUNING DRIVE LA1833N, 1833NM S-CURVE FF 38k FF π 19k∠ 2 FF 19k∠0 PILOT DET FM IF FM DET REG GND VCC 1 2 3 4 5 6 7 8 9 10 11 FM 12 450kHz TU-LED ST-LED ST + AM + AM / FM IF-BUFF SEEK MUTE VCC + MONO FM-IN (10.7MHz) ILA00240 + No. 6568-6/10 AM stereo IF output (4.0 to 8.0 V) Test Circuit 0.047µF 50Ω AM-IN (1MHz) A 22µF 39m + 65kΩ 0.0047µF 0.01µF 0.1µF 0.015µF 20kΩ 21 20 19 18 17 16 15 14 + 20kΩ 10µF + A 0.047µF 1000pF 4.7µF 0 dB LPF LPF L OUT OSC BUFF 3.3µF 39pF 20pF 5.6kΩ 1000pF HW50425 R OUT 24 23 22 13 * * * * LA1833N, 1833NM LA1833N / 1833NM * 4 TU-LED V-SD V-ST ST-LED 100Ω 5 6 7 8 * * * * * * * * 9 * 10 11 1µF + 3kΩ 12 Top view 1µF + 1000pF 1 2 3 FM-IN (10.7MHz) 75Ω 300Ω 0.047µF 50kΩ 1000pF 50kΩ MFP = 33 0.47µF NORMAL 20pF AM / FM IF-BUFF + FM AM MONO HW6215 + 33µF 0.047µF AM IF CDA10.7MG1-B (For the DUT socket printed circuit board) SEEK VCC 5.0 V No. 6568-7/10 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. 0.015µF 6.8kΩ ILA00241 LA1833N, 1833NM FM IF I/O Characteristics 0 --10 --20 3.0 FM IF THD Detuning Characteristics Total harmonic distortion, THD — % S 2.5 Output, — dBV --30 --40 --50 --60 --70 --80 --90 0 50 100 150 ILA00242 12 2.0 1.5 AM 1.0 0.5 N 0 10.55 10.6 10.65 10.7 10.75 10.8 10.85 Input — dBµ 20 Frequency — MHz ILA00243 FM IF VCC Characteristics FM IF VCC Characteristics 60 Total harmonic distortion, THD — % SD on range, Qs — dBµ 3 dB limiting sensitivity, Qs — dBµ Demodulator output, VO — dBm 55 50 45 40 35 30 25 20 2 4 6 8 10 ILA00245 1.6 1.4 1.2 1.0 0.8 0 S 10 SD on range 3dB LS --20 8 --40 6 Qs --60 4 AM --80 N 2 THD --100 2 4 6 8 0 10 ILA00244 10 Supply voltage, VCC — V Supply voltage, VCC — V AM Characteristics 20 0 AM VCC Characteristics SD, AGC — V Total harmonic distortion, THD — % --10 --20 0 8 Vout Output, — dBV Output, — dBµ VO 0%M o d) --20 Mod) 6 --30 --40 --50 --60 THD(30% THD (8 --40 4 THD ) (80%Mod 0.6 0.4 0.2 0 10 ILA00247 --60 AGC Noise SD - OUT 0 20 40 60 80 100 120 2 THD(30%Mod) Noise --70 --80 2 4 6 8 --80 0 140 Input — dBµ 80 70 ILA00246 100 AM VCC Characteristics 3 dB limiting sensitivity, 3dBLS — dB Signal-to-noise ratio, SD on, 3dBLS — dB Supply voltage, VCC — V FM IF Temperature Characteristics Useable sensitivity, Qs — dBµ SD sensitivity, SD — dBµ 80 60 50 40 S/N AGC 60 SD -- ON 30 20 10 0 2 4 SD -- ON 40 Useable sensitivity --3dB LS 20 SD - OUT 6 8 10 ILA00248 0 --40 --20 0 20 40 60 80 100 Supply voltage, VCC — V Ambient temperature, Ta — °C ILA00249 No. 6568-8/10 LA1833N, 1833NM FM IF Temperature Characteristics FM ST VCC Characteristics 100d 2.0 Bµ Channel separation, Sep — dB 2.5 60 3.0 50 2.5 Pilot ON 40 Sep 2.0 1.5 50dBµ 30 1.5 1.0 20 1.0 0.5 0dBµ 10 0 --40 THD --20 0 20 40 60 80 0.5 0 100 0 --40 --20 0 20 40 60 80 100 Ambient temperature, Ta — °C 60 ILA00250 3.0 Ambient temperature, Ta — °C ILA00251 AM Temperature Characteristics 80dB µ AM Temperature Characteristics Signal-to-noise ratio, S/N — dB SD on level — dBµ 50 2.5 AGC voltage, VAGC — V 80dBµ 40 2.0 30 1.5 20dBµ SD 20 N -- O 23dBµ 0dBµ 1.0 10 0.5 0 --40 --20 0 20 40 60 80 100 0 --40 --20 0 20 40 60 80 100 Ambient temperature, Ta — °C 10 ILA00252 50 Ambient temperature, Ta — °C ILA00253 THD — fm TH Ds t Sep — fm Total harmonic distortion, THD — % Channel separation, Sep — dB 40 30 1.0 20 THD main Sep R L Sep THD sub 0.1 10 10 100 1000 10000 100000 ILA00254 0 10 100 1000 10000 100000 ILA00255 Modulation frequency, fm — kHz 10 Modulation frequency, fm — kHz 100 THD — VCC Channel separation, Sep — dB Signal-to-noise ratio, S/N — dB Sep, S / N — VCC Sep R S/N Total harmonic distortion, THD — % 7 5 3 2 80 Sep L 60 1.0 7 5 3 2 0.1 0 1 2 3 4 sub T s HD t TH D TH D m ain 40 20 THD mono 0 5 6 7 8 9 2 4 6 8 10 ILA00257 Supply voltage, VCC — V ILA00256 Supply voltage, VCC — V No. 6568-9/10 Total harmonic distortion, THD, pilot on — % 3.0 70 3.5 S-meter voltage, VSM — V LA1833N, 1833NM VL on, off — VCC Capture Range Characteristics CR+ 6 2.5 3.0 8 Stereo sensitivity, VL — % Capture range, CR — % 4 2 0 --2 2.0 VL on 1.5 1.0 VL off CR---4 --6 0.5 0 2 4 6 8 10 ILA00258 --8 10 15 20 25 30 35 ILA00259 Supply voltage, VCC — V Pilot input voltage — mV 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