Ordering number : EN6854A LA1823 LA1823M Monolithic Linear ICs Single-Chip Tuner ICs for Use in Radio Cassette Recorder Overview The LA1823 and the LA1823M are single-chip tuner ICs that incorporate FM/AM and MPX circuits and support electronic tuning. The built-in MPX-VCO allows these ICs to be adjustment-free and to require no external components. Features • AM, FM frontend/IF and MPX integrated in a single-chip. • Built-in MPX VCO circuit • Electronic tuning (AM oscillator output, AM/FM IF output) • Adjustment-free FM detection (uses a ceramic discriminator) • Packages : DIP24S (300mil) [LA1823] MFP24S (300mil) [LA1823M] Functions AM FM-RF FM-IF MPX : RF amplifier, mixer, oscillator, oscillator buffer, IF amplifier, detector, AGC, IF count buffer output. : RF amplifier, mixer, and oscillator. : IF amplifier, quadrature detector, S-meter, and IF counter buffer output. : PLL stereo decoder, stereo indicator, forced monaural, VCO on chip, Audio mute. Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Indicator drive current Allowable power dissipation Symbol Conditions VCC max ILED Pd max Pin 8 Ta ≤ 70°C Ratings Unit 7.0 V 20 mA 300 mW Operating temperature Topr -20 to +70 °C Storage temperature Tstg -40 to +125 °C Any and all SANYO Semiconductor 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 Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor 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 Semiconductor products described or contained herein. N1506 MS PC B8-8120, B8-5863 No.6854-1/12 LA1823, LA1823M Operating Conditions at Ta = 25°C Parameter Symbol Recommended supply voltage VCC Operation supply voltage range VCC op Conditions Ratings Unit 4.5 V 1.8 to 6.0 V Operating Characteristics at Ta = 25°C, VCC = 4.5V, in the specified test circuit Parameter Symbol Ratings Conditions min typ Unit max Quiescent supply current FM-mode quiescent current ICC (FM) 10.0 15.0 20.0 mA AM-mode quiescent current ICC (AM) 6.5 9.2 14.5 mA FM front-end characteristics at fc = 98MHz, VIN = 60dBµV EMF, fm = 1kHz, 22.5kHz dev Local oscillator voltage VOSC No. input, fosc = 108.7MHz, 100 mVrms 12 dBµV EMF the pin 20 output Input limiting voltage 3dB L.S. Referenced to 22.5kHz dev, a 3dB down input FM IF characteristics (monaural) at fc = 10.7MHz, VIN = 100dBµV, fm = 1kHz, 75kHz dev Demodulation output VO The pin 16 output 125 Signal-to-noise ratio S/N The pin 16 output 63 Total harmonic distortion THD The pin 16 output 165 210 72 mVrms dB 0.5 1.5 % 38 45 dBµV (monaural) Input limiting voltage 3dB L.S. Referenced to 75kHz dev, a 3dB down input IF count buffer on level IF buff on No modulation IF count buffer output VIF buff No modulation, the pin 7 output 31 35 45 55 dBµV 120 180 240 mVrms FM IF characteristics (stereo) at fc = 10.7MHz, VIN = 100dBµV, fm = 1kHz, 75kHz dev, L+R = 90%, PILOT = 10% Separation SEP Left channel modulated, the pin 16 and pin 17 25 40 dB 2.4 3.5 7.2 % 0.5 1.7 % outputs Stereo on level ST-ON The pilot modulation such that the pin 8 voltage becomes lower than 0.5V Total harmonic distortion (stereo) THD Main modulation, the pin 16 output AM characteristics at fc = 1000kHz, fm = 1kHz, mod = 30% Detector output Signal-to-noise ratio Total harmonic distortion VO1 VIN = 23dBµV, the pin 16 output 14 26 50 mVrms VO2 VIN = 80dBµV, the pin 16 output 50 75 120 mVrms S/N1 VIN = 23dBµV, the pin 16 output 15 20 S/N2 VIN = 80dBµV, the pin 16 output 47 THD VIN = 80dBµV, the pin 16 output OSC buffer output VOSC buff No input, the pin 8 output IF count buffer on level IF buff on No modulation IF count buffer output VIF buff VIN = 80dBµV, no modulation, the pin 7 output 80 dB 54 dB 0.5 1.5 % 100 160 mVrms 15 25 32 dBµV 110 180 220 mVrms No.6854-2/12 LA1823, LA1823M Package Dimensions unit : mm (typ) 3067B [LA1823] 13 1 12 0.95 0.51min (3.25) 0.9 3.3 3.9 max 0.25 6.4 24 7.62 21.0 (0.71) 1.78 0.48 SANYO : DIP24S(300mil) 3112B [LA1823M] 12.5 0.63 7.6 13 5.4 24 1 12 1.0 0.15 0.35 1.7max 0.1 (1.5) (0.75) SANYO : MFP24S(300mil) No.6854-3/12 Vtune AM Ant 24 1 AM RF FM RF BPF FM Ant + 2 REG GND2 23 3 AM OSC AM MIX 22 4 VCC1 + OSC BUFFER VCC2 21 5 FM MIX FM OSC 20 7 IF BUFFER SD VCO 8 ST 9 FF 15 + 11 AM IF AM DET FF PILOT DET + 12 AGC FM DET 13 ST MONO 10.7MHz 450kHz 10 FM IF FM S-METER FF + 14 FM AM PHASE COMP L-OUT 16 DECODER 17 TRIG STSW MUTE 18 R-OUT AM / FM Mute ST AM OSC IF Buff Buff 6 GND1 19 + + VCC LA1823, LA1823M Block Diagram No.6854-4/12 0.047µF 8pF 100kΩ SVC348 10pF AM-ANT 24 1 + 10µF 2 REG 0.047µF AM RF 23 SVC201 GND2 1000pF FM RF BPF 0.047µF 6 4 22pF SD SEEK 100kΩ 10kΩ 7 4.7µF + VCO 9 ST AM OSC BUFF 8 ST FF 450kHz AM-MIX 11 AM IF FM IF 10 AM DET FM S-METER FF PILOT DET PHASE COMP FF 14 FM 22µF + 12 AGC FM DET 13 ST 0.22µF + 3.3µF + AM MONO 15 L-OUT 16 DECODER 17 R-OUT TRIG STSW IF BUFFER 10.7MHz AM / FM IF BUFF + 100µF 18 MUTE 100pF GND1 19 4.7µF + FM OSC BUFF 6800pF 6800pF 1000pF 2SC2999 2700pF VCC1 5 FM MIX FM OSC 20 1000pF 3pF 1.2kΩ 33kΩ 0.047µF 10Ω OSC BUFFER VCC2 21 10Ω 0.047µF 3 AM OSC AM MIX 22 8pF 33kΩ 470pF FM Ant 12pF 33kΩ SVC201 220kΩ FM-OSC Vtune 1000pF AM-OSC FM-RF 1000pF 100pF 3.3kΩ 100Ω VCC LA1823, LA1823M Sample Application Circuit Diagram No.6854-5/12 FM-DET 0.047µF 100kΩ SVC348 39m 0.047µF 51kΩ AM IN 1 + 10µF 2 REG 0.047µF AM RF FM RF 23 SVC201 GND2 1000pF 24 SA-309 BPF FM IN 0.047µF 21 SVC201 22pF + 100µF SFE10.7MA5 6 4 18 8 ST 9 FF L-OUT LPF 51Ω FM IF IN 300Ω 0.047µF SFU450B 11 AM IF FM IF 10 AM DET FM S-METER FF PILOT DET PHASE COMP FF 14 15 FM 22µF + 12 AGC FM DET 13 ST 0.22µF + 3.3µF + AM MONO R-OUT LPF AM / FM ST AM Vosc SA-1136 IF BUFF SEEK 10kΩ 7 IF BUFFER SD 16 6800pF VCO TRIG STSW 0dB 4.7µF + amp amp DECODER 17 6800pF MUTE 100pF GND1 19 + 4.7µF FM Vosc 2SK315 2700pF VCC1 5 FM MIX FM OSC 20 1000pF OSC BUFFER VCC2 0.047µF 3 AM OSC AM MIX 22 10Ω 470pF 8pF 100kΩ 33kΩ 0.047µF 10Ω 12pF 33kΩ SA-151 33kΩ 1000pF SA-181 SA-149 3pF 100kΩ Vtune 100pF 3.3kΩ +5.0V VCC=4.5V LA1823, LA1823M Measurement Circuit Diagram No.6854-6/12 CDA10.7MG1 LA1823, LA1823M Coil specifications (bottom view) • FM-BPF : SA-309 (Sumida) 88MHz to 108MHz • FM-RF : SA-149 (Sumida) 3.6mm diameter, air core, 0.6mm wire, 41/2 T • FM-OSC : SA-151 (Sumida) 3.6mm diameter, air core, 0.6mm wire, 31/2 T • FM-IF filter, discriminator : SK107M1-AE-10, CDF107F-AE-029 (Toko) SFE10.7MA5, CDA10.7MG1-A (Murata) : tentative • AM-OSC : SA-181 (Sumida) S VC 3 : L7BRS-3132AQ (Toko) 4 pin3 6-4 37T 3-1 74T S VC 3 4 pin3 Qo ≥ 80 Qo ≥ 65 2 L = 140µH L = 140µH 6 VCC S GND 1 • AM-MIX : SA-1136 (Sumida) 6 VCC S : PCFAZ-082 (Toko) S 4 CF S 3 3-2 122T 4-6 9T 2-1 62T 3 S 4 0.06UEW 1-2 47T 2-3 100T 4-6 12T fo = 450kHz fo = 450kHz, Qo ≥ 65 VCC 2 VCC 2 GND 180pF internal pin9 1 32T fo = 796kHz fo = 796kHz GND 1 64T 6-4 0.06-2UEW 0.06UEW 2 3-1 180pF internal With AM-IF filter pin9 1 S 6 GND S 6 ACFA-450L08 • AM-IF filter : SFU450B (Murata) • MW Bar-antenna : C8E-A0105 (Toko) 1 S VC 2 3 S GND Pin1 1-2 67T 3-4 9T fo = 796kHz 4 Pin2 Qu = 180min L = 260µH No.6854-7/12 LA1823, LA1823M Pin Descriptions and Quiescent Voltage at VCC = 4.5V Quiescent Pin Function number 1 AM-RF input voltage (V) AM FM 1.2 1.2 Remarks Equivalent circuit Connect the AM antenna coil between this 2 pin and pin 2 (Reg) 1 2 Reg 1.2 1.2 2 3 AM-OSC 4.5 4.5 Connect the AM oscillator coil between this pin and pin 4 (VCC1) 4 VCC1 4.5 4.5 AM/FM-IF/MPX block VCC 5 FM-MIX output 2.4 2.2 Rout = 270Ω 3 4 5 Rout 6 GND1 7 IF buffer output 0 0 4.5 4.5 AM/FM-IF/MPX block ground V7 ≥ 1.3V : IF buffer output and muting on and mute switch 7 Continued on next page. No.6854-8/12 LA1823, LA1823M Continued from preceding page. Pin number 8 Quiescent Function Stereo indicator, voltage (V) AM FM 4.5 4.5 AM-oscillator Remarks Equivalent circuit Active-low 8 Open-collector output buffer output AM oscillator signal is output in AM mode 9 AM-MIX output 4.5 4.5 Connect the AM mixer coil between this pin 9 and pin 4 (VCC1) 10 FM-IF input 1.2 1.2 4 Rin = 330Ω 10 Rin 2 11 AM-IF input 1.2 1.2 Rin = 2kΩ 11 Rin 2 12 AM-AGC output 0.4 0.1 and FM signal Internal load resistance R = 16.6kΩ meter output 12 R 13 FM-DET 3.9 3.7 Recommended ceramic discriminator : CDF107F-AE-029 (Toko) CDA10.7MG1-A (Murata, tentative) 13 Continued on next page. No.6854-9/12 LA1823, LA1823M Continued from preceding page. Quiescent Pin Function number 14 Pilot detector filter voltage (V) AM FM 2.9 3.8 (forced monaural Remarks Equivalent circuit Forced monaural mode when pin 14 is 14 connected to ground mode) 15 Phase comparator 0 3.8 filter FM mode is when pin 15 is open, and AM 15 mode is when pin 15 is connected to ground (AM/FM switch) 16 L output 17 R output 1.2 1.2 Rout = 7.5kΩ 16 Rout 18 MPX input 1.2 1.2 17 Rin = 50kΩ 18 Rin 19 AM/FM detector 0.3 1.0 output Output impedance AM : Rout = 50kΩ FM : Rout = 500Ω Rout (FM) 19 The channel separation can be adjusted with an external capacitor connected between Rout (AM) this pin and ground 20 FM-OSC 4.5 4.4 Connect the FM oscillator coil between this pin and pin 21 (VCC2) 21 20 Continued on next page. No.6854-10/12 LA1823, LA1823M Continued from preceding page. Quiescent Pin voltage (V) Function number VCC2 21 AM FM 4.5 4.4 Remarks Equivalent circuit FM-FE block VCC R Power is supplied from pin 4 (VCC1) via external resistor (10Ω) 22 FM-RF output 24 FM-RF input 4.5 4.4 0 0.9 21 4 Connect the FM-RF coil between this pin and pin 21 (VCC2) 22 21 Rin = 1.8kΩ 24 Rin GND2 0 FM-FE block ground FM Characteristics Signal --20 --40 AM out --60 --80 Noise VCC=4.5V fc=98MHz fm=1kHz, 22.5kHz dev AM=30%mod --100 --20 0 20 40 60 80 FM Characteristics 5 Total harmonic distortion, THD – % 0 Output voltage, VO – dBm 0 100 120 4 3 2 1 THD(75k) 0 --20 140 VCC=4.5V fc=98MHz fm=1kHz THD(22.5k) 0 20 40 Input – dBµV EMF Noise --80 20 40 60 80 Input – dB/m 100 120 140 VCC=4.5V fc=1000kHz fm=1kHz, 30%mod 4 3 2.5 2.0 1.5 80% --60 0 140 2 1.0 THD Signal --40 --100 --20 120 AM Characteristics 5 Total harmonic distortion, THD – % --20 100 Input – dBµV EMF AM Characteristics VCC=4.5V fc=1000kHz fm=1kHz, 30%mod 80 THD30% Output voltage, VO – dBm 0 60 VAGC – V 23 1 0 --20 0.5 VAGC 0 20 40 60 80 100 120 0 140 Input – dB/m No.6854-11/12 LA1823, LA1823M Separation, Sep – dB 50 40 Sep R Sep L 30 20 10 5 Total harmonic distortion, THD – % VCC=4.5V fc=98MHz, Vin=60dBµV EMF 75kHz dev, L+R=90% Pilot=10% 4 FM Stereo Characteristics VCC=4.5V fc=98MHz, Vin=60dBµV EMF 75kHz dev, L+R=90% Pilot=10% 3 Main FM Stereo Characteristics 60 2 1 Sub ST Mono 0 0.01 0.1 1.0 10 Modulation frequency, fm – kHz 100 0 0.01 0.1 1.0 10 100 Modulation frequency, fm – kHz Specifications of any and all SANYO Semiconductor 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 Semiconductor 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. 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Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO Semiconductor 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 November, 2006. Specifications and information herein are subject to change without notice. PS No.6854-12/12