LA1823

Ordering number : EN6854A LA1823 LA1823M Overview Monolithic Linear ICs Single-Chip Tuner ICs for Use in Radio Cassette Recorder 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 Operating temperature Storage temperature Symbol VCC max ILED Pd max Topr Tstg Pin 8 Ta ≤ 70°C Conditions Ratings 7.0 20 300 -20 to +70 -40 to +125 Unit V mA mW °C °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 Recommended supply voltage Operation supply voltage range Symbol VCC VCC op Conditions Ratings 4.5 1.8 to 6.0 Unit V V Operating Characteristics at Ta = 25°C, VCC = 4.5V, in the specified test circuit Parameter Quiescent supply current FM-mode quiescent current AM-mode quiescent current ICC (FM) ICC (AM) 10.0 6.5 15.0 9.2 20.0 14.5 mA mA Symbol Conditions min Ratings typ max Unit FM front-end characteristics at fc = 98MHz, VIN = 60dBµV EMF, fm = 1kHz, 22.5kHz dev Local oscillator voltage Input limiting voltage VOSC 3dB L.S. No. input, fosc = 108.7MHz, the pin 20 output Referenced to 22.5kHz dev, a 3dB down input 12 dBµV EMF FM IF characteristics (monaural) at fc = 10.7MHz, VIN = 100dBµV, fm = 1kHz, 75kHz dev Demodulation output Signal-to-noise ratio Total harmonic distortion (monaural) Input limiting voltage IF count buffer on level IF count buffer output 3dB L.S. IF buff on VIF buff Referenced to 75kHz dev, a 3dB down input No modulation No modulation, the pin 7 output 31 35 120 38 45 180 45 55 240 dBµV dBµV mVrms VO S/N THD The pin 16 output The pin 16 output The pin 16 output 125 63 165 72 0.5 1.5 210 mVrms dB % 100 mVrms FM IF characteristics (stereo) at fc = 10.7MHz, VIN = 100dBµV, fm = 1kHz, 75kHz dev, L+R = 90%, PILOT = 10% Separation Stereo on level Total harmonic distortion (stereo) SEP ST-ON THD Left channel modulated, the pin 16 and pin 17 outputs The pilot modulation such that the pin 8 voltage becomes lower than 0.5V Main modulation, the pin 16 output 0.5 1.7 % 2.4 3.5 7.2 % 25 40 dB AM characteristics at fc = 1000kHz, fm = 1kHz, mod = 30% Detector output VO1 VO2 Signal-to-noise ratio S/N1 S/N2 Total harmonic distortion OSC buffer output IF count buffer on level IF count buffer output THD VOSC buff IF buff on VIF buff VIN = 23dBµV, the pin 16 output VIN = 80dBµV, the pin 16 output VIN = 23dBµV, the pin 16 output VIN = 80dBµV, the pin 16 output VIN = 80dBµV, the pin 16 output No input, the pin 8 output No modulation VIN = 80dBµV, no modulation, the pin 7 output 80 15 110 14 50 15 47 26 75 20 54 0.5 100 25 180 1.5 160 32 220 50 120 mVrms mVrms dB dB % mVrms dBµV mVrms No.6854-2/12 LA1823, LA1823M Package Dimensions unit : mm (typ) 3067B 21.0 24 13 [LA1823] 0.9 0.95 3.3 3.9 max (0.71) 0.51min (3.25) 1.78 0.48 SANYO : DIP24S(300mil) 3112B 12.5 24 13 [LA1823M] 5.4 7.6 1 1.0 (0.75) 0.35 12 0.15 SANYO : MFP24S(300mil) 0.1 (1.5) 1.7max 0.63 0.25 1 12 7.62 6.4 No.6854-3/12 Vtune FM Ant + BPF FM R-OUT 24 GND2 FM OSC STSW FM MIX TRIG VCO FF FF MUTE DECODER PHASE COMP VCC2 23 22 21 20 19 18 17 16 15 14 PILOT DET FF L-OUT 13 FM DET ST + AM MONO + + Block Diagram FM RF LA1823, LA1823M AM RF SD OSC BUFFER VCC1 3 4 5 6 GND1 IF BUFFER 7 AM OSC REG 1 AM Ant + 2 AM MIX ST FM S-METER FM IF AM DET AM IF AGC 8 9 10 11 12 + AM / FM Mute ST AM OSC IF Buff Buff + 10.7MHz 450kHz VCC No.6854-4/12 100Ω 1000pF 220kΩ 2SC2999 FM OSC BUFF Vtune 33kΩ FM Ant 1000pF 2700pF 1000pF 12pF + 6800pF 6800pF FM L-OUT 15 PHASE COMP FF 14 PILOT DET FF 13 FM DET R-OUT 17 DECODER 16 4.7µF 19 MUTE 18 3.3kΩ 4.7µF + 0.22µF + 3.3µF + AM MONO ST SVC201 10Ω 0.047µF 33kΩ 0.047µF 10Ω 3pF 1.2kΩ 1000pF 33kΩ 8pF FM-OSC 24 GND2 FM OSC STSW FM MIX TRIG VCO FF VCC2 Sample Application Circuit Diagram 23 22 21 20 FM RF LA1823, LA1823M AM RF AM OSC REG 1 AM-ANT 470pF 10pF + 8pF SVC348 100kΩ 0.047µF 10µF 2 3 4 5 VCC1 OSC BUFFER GND1 6 100pF AM MIX SD ST FM S-METER IF BUFFER 7 8 100pF 9 FM IF AM DET AM IF AGC 10 11 12 10kΩ 100kΩ + AM-MIX 22µF 0.047µF AM-OSC 22pF 0.047µF 10.7MHz AM / FM IF BUFF + 100µF SEEK ST AM OSC BUFF 450kHz FM-DET 1000pF FM-RF SVC201 BPF VCC No.6854-5/12 +5.0V 0dB 3pF amp LPF LPF L-OUT R-OUT amp 4.7µF + 33kΩ FM IN 10Ω 2700pF 1000pF FM Vosc 2SK315 Vtune SVC201 1000pF 0.047µF 33kΩ 0.22µF + 3.3µF + AM MONO FM 15 PHASE COMP FF 14 PILOT DET FF ST 13 FM DET 100kΩ 33kΩ 0.047µF 10Ω 8pF SVC201 12pF SA-151 Measurement Circuit Diagram 24 GND2 FM OSC STSW FM MIX TRIG VCO FF MUTE DECODER VCC2 23 22 21 20 19 18 17 16 FM RF LA1823, LA1823M AM RF SD OSC BUFFER VCC1 3 4 5 GND1 6 IF BUFFER 7 AM OSC REG 1 0.047µF 2 AM MIX ST FM S-METER FM IF AM DET AM IF AGC 8 9 10 11 12 470pF 39m SVC348 100kΩ 0.047µF 0.047µF SA-181 10µF 100kΩ 51kΩ + 100pF 10kΩ 100pF AM IN + 22µF SFE10.7MA5 AM / FM ST AM Vosc SA-1136 IF BUFF SEEK SFU450B VCC=4.5V 22pF 0.047µF + 100µF FM IF IN 51Ω No.6854-6/12 300Ω 0.047µF CDA10.7MG1 1000pF 4.7µF SA-149 + 6800pF 6800pF 3.3kΩ SA-309 BPF 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) : L7BRS-3132AQ (Toko) 6-4 37T 74T 3-1 0.06UEW fo = 796kHz S VC 3 4 pin3 S VC 3 3-1 64T 32T 4 pin3 6-4 0.06-2UEW fo = 796kHz 2 Qo ≥ 80 L = 140µH 2 Qo ≥ 65 L = 140µH GND 1 6 VCC S 3-2 4-6 2-1 0.06UEW 122T 9T 62T GND 1 : PCFAZ-082 (Toko) 6 VCC S 1-2 2-3 4-6 fo = 450kHz 47T 100T 12T • AM-MIX : SA-1136 (Sumida) S 3 S 4 CF 3 S 4 VCC 2 pin9 1 6 GND S fo = 450kHz, Qo ≥ 65 180pF internal VCC 2 pin9 1 S 6 GND 180pF internal With AM-IF filter ACFA-450L08 • AM-IF filter : SFU450B (Murata) • MW Bar-antenna : C8E-A0105 (Toko) 1-2 3-4 fo = 796kHz 67T 9T 1 S 2 3 S 4 Pin2 Qu = 180min L = 260µH VC GND Pin1 No.6854-7/12 LA1823, LA1823M Pin Descriptions and Quiescent Voltage at VCC = 4.5V Pin number 1 Quiescent Function AM-RF input voltage (V) AM 1.2 FM 1.2 Connect the AM antenna coil between this pin and pin 2 (Reg) Remarks Equivalent circuit 2 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) 3 4 4 5 VCC1 FM-MIX output 4.5 2.4 4.5 2.2 AM/FM-IF/MPX block VCC Rout = 270Ω 5 Rout 6 7 GND1 IF buffer output and mute switch 0 4.5 0 4.5 AM/FM-IF/MPX block ground V7 ≥ 1.3V : IF buffer output and muting on 7 Continued on next page. No.6854-8/12 LA1823, LA1823M Continued from preceding page. Pin number 8 Quiescent Function Stereo indicator, AM-oscillator buffer output AM oscillator signal is output in AM mode voltage (V) AM 4.5 FM 4.5 Active-low Open-collector output Remarks Equivalent circuit 8 9 AM-MIX output 4.5 4.5 Connect the AM mixer coil between this pin and pin 4 (VCC1) 9 4 10 FM-IF input 1.2 1.2 Rin = 330Ω 10 Rin 2 11 AM-IF input 1.2 1.2 Rin = 2kΩ 11 Rin 2 12 AM-AGC output and FM signal meter output 0.4 0.1 Internal load resistance R = 16.6kΩ 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. Pin number 14 Quiescent Function Pilot detector filter (forced monaural mode) voltage (V) AM 2.9 FM 3.8 Forced monaural mode when pin 14 is connected to ground Remarks Equivalent circuit 14 15 Phase comparator filter (AM/FM switch) 0 3.8 FM mode is when pin 15 is open, and AM mode is when pin 15 is connected to ground 15 16 17 L output R output 1.2 1.2 Rout = 7.5kΩ 16 Rout 17 18 MPX input 1.2 1.2 Rin = 50kΩ 18 Rin 19 AM/FM detector output 0.3 1.0 Output impedance AM : Rout = 50kΩ FM : Rout = 500Ω Rout (FM) The channel separation can be adjusted with an external capacitor connected between this pin and ground 19 Rout (AM) 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. Pin number 21 Quiescent Function VCC2 voltage (V) AM 4.5 FM 4.4 FM-FE block VCC Power is supplied from pin 4 (VCC1) via external resistor (10Ω) Remarks Equivalent circuit R 21 4 22 24 FM-RF output FM-RF input 4.5 0 4.4 0.9 Connect the FM-RF coil between this pin and pin 21 (VCC2) Rin = 1.8kΩ 22 21 24 Rin 23 GND2 0 0 FM-FE block ground 0 FM Characteristics Total harmonic distortion, THD – % 5 FM Characteristics VCC=4.5V fc=98MHz fm=1kHz Output voltage, VO – dBm --20 Signal 4 --40 3 AM out --60 2 --80 --100 --20 VCC=4.5V fc=98MHz fm=1kHz, 22.5kHz dev AM=30%mod 0 20 40 60 Noise 1 THD(75k) 0 --20 THD(22.5k) 0 20 40 60 80 100 120 140 80 100 120 140 Input – dBµV EMF 0 Input – dBµV EMF 5 AM Characteristics Signal Total harmonic distortion, THD – % AM Characteristics VCC=4.5V fc=1000kHz fm=1kHz, 30%mod THD30% 2.5 Output voltage, VO – dBm --20 VCC=4.5V fc=1000kHz fm=1kHz, 30%mod 4 2.0 --40 3 1.5 80% --60 2 1.0 Noise --80 1 THD VAGC 0.5 --100 --20 0 20 40 60 80 100 120 140 0 --20 0 20 40 60 80 100 120 0 140 Input – dB/m Input – dB/m No.6854-11/12 VAGC – V LA1823, LA1823M 60 FM Stereo Characteristics Total harmonic distortion, THD – % VCC=4.5V fc=98MHz, Vin=60dBµV EMF 75kHz dev, L+R=90% Pilot=10% Sep R Sep L 5 FM Stereo Characteristics VCC=4.5V fc=98MHz, Vin=60dBµV EMF 75kHz dev, L+R=90% Pilot=10% 50 4 Separation, Sep – dB 40 3 2 20 10 1 Sub ST Mono 0 0.01 0.1 1.0 10 100 0 0.01 Main 30 0.1 1.0 10 100 Modulation frequency, fm – kHz 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