Ordering number : EN5837 LA1828 Monolithic Linear IC LA1828 Single-Chip Tuner IC for Portable Radio /Cassette Recorders with Manual Tuning Functions Package Dimensions • AM: unit:mm 24 ±0.25 ±0.25 13 +0.15 6.4 0.25-0.05 output, forced mono, internal VCO 1 12 Features ±0.25 ±0.1 3.25 0.51min • Single-chip tuner with AM, FM-FE/FM-IF, MPX circuitry • Built-in adjustment-free MPX-VCO (noceramic oscillator required) • Reduced FM-FE oscillation level • FM stereo indication and AM/FM tuning indication outputs can directly drive LEDs ±0.25 0.81 ±0.25 1.78 +0.15 0.48-0.05 3.9max 21.2 ±0.25 • MPX: [LA1828] [LA1828] 3.3 • FM-FE: • FM-IF: 3067-DIP24S 7.62 RF amplifier, mixer, oscillator, IF amplifier, detector, AGC, tuning display output RF amplifier, mixer, oscillator IF amplifier, quadrature detector, signal strength meter, tuning display output PLL stereo decoder, stereo display ±0.15 0.95 SANYO:DIP24S SANYO:DIP24S Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Indicator drive current Allowable power dissipation Operating temperature Storage temperature Symbol Conditions Ratings VCCmax ILED pins 8, 9 Pd max Ta ≤ 70°C Unit 7.0 V 20 mA 300 mW Topr –20 to +70 °C Tstg –40 to +125 °C Operating Conditions at Ta = 25°C Parameter Symbol Recommended supply voltage VCC Operating supply voltage range VCCop Conditions Ratings Unit 4.5 V 2.5 to 6.0 V SANYO Electric Co., Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 51198RM(KI) No. 5837-1/13 Ordering number : EN5837 LA1828 Operating Characteristics at Ta = 25°C, Vcc = 4.5V, in specified test circuit, using Yamaichi Electronics socket IC-179-2 Parameter Symbol Conditions Ratings typ min max Unit [FM-FE characteristics]: fc = 98 MHz, fm = 1 kHz, 30% mod. Local oscillator voltage 40 fOSC=108.7 MHz, pin 20 output VOSC 80 160 mVrms *Measured with FET buffer (-10 dB gain) 3 dB sensitivity 3dB LS Effective sensitivity Qs 60 dBµ, 30% mod. output, -3 dB input 13 dBµ Input for S/N = 30 dB 12 dBµ [FM-IF monaural characteristics]: fc = 10.7 MHz, fm = 1 kHz, 100% mod. Quiescent current ICCO (FM) 8 16 23 mA Demdulator output VO 100 dBµ, pin 16 output 130 190 260 mVrms Signal-to-noise ratio S/N 100 dBµ, pin 16 output 62 Total harmonic distortion (mono) THD 100 dBµ, pin 16 output 3 dB sensitivity 3 dB LS TU-LED sensitivity SD-ON No input 100 dBµ, 100% mod.output, -3 dB input 21 70 dB 0.4 1.2 % 32 42 dBµ 33 dBµ [FM-IF stereo characteristics]: fc = 10.7 MHz, fm = 1 kHz, L+R = 90%, pilot = 10% Separation SEP ST-LED sensitivity ST-ON Total harmonic distortion (main) THD 100 dBµ, L-mod, pin 16/pin 17 output 25 40 100 dBµ, pilot modulation for pin 8 voltage < 0.5V 1.5 3.5 6.3 % 0.5 1.2 % 100 dBµ, main modulation, pin 16 output dB [AM characteristics]: fc = 1000 kHz, fm = 1 kHz, 30% mod. ICCO (AM) Quiescent current Demdulator output Signal-to-noise ratio Total harmonic distortion TU-LED sensitivity No input 5 8.5 15 mA 40 70 mVrms 130 mVrms V O1 23 dBµ, pin 16 output 18 V O2 80 dBµ, pin 16 output 50 85 S/N1 23 dBµ, pin 16 output 15 20 S/N2 80 dBµ, pin 16 output 47 53 THD1 80 dBµ, pin 16 output 0.5 1.3 THD2 107 dBµ, pin 16 output 0.5 1.5 26 SD-ON dB dB % % dBµ Pin Description and Quiescent Voltage at Vcc = 4.5V Quiescent Pin Function number voltage (V) AM Equivalent circuit Remarks FM 2 1 AM RF input 1.3 1.3 AM antenna coil connected between pins 1 and 2 (reg) 1 A10247 Vreg=1.3V 2 Reg 1.3 1.3 2 A10248 51198RM(KI) No. 5837-2/13 Ordering number : EN5837 LA1828 Continued on next page Continued from preceding page Quiescent Pin Function number voltage (V) AM Equivalent circuit Remarks FM Oscillator coil connected 3 3 AM-OSC 4.5 4 between pins 3 and 4 (VCC1) 4.5 A10249 4 VCC1 4.5 4.5 AM/FM-IN/MPX block VCC Mixer coil connected 4 5 FM mixer output 4.5 5 between pins 5 and 4 (VCC1) 4.5 A10250 6 GND1 0 0 AM/FM-IN/MPX section ground Mixer coil connected 7 7 AM mixer output 4.5 4 between pins 7 and 4 (VCC1) 4.5 A10251 Active low Open-collector output can 8 8 Tu-LED output 4.5 directly drive LED (IC max = 20 mA) 4.5 A10252 Active low 9 Open-collector output can directly drive LED ST-LED output 9 and 4.5 (IC max = 20 mA) In AM operation, AM-IF signal 4.5 AM-IF output (450 kHz) is output here. A10253 Continued on next page 51198RM(KI) No. 5837-3/13 Ordering number : EN5837 LA1828 Continued from preceding page Quiescent Pin Function number voltage (V) AM Equivalent circuit Remarks FM RIN = 330 Ω 10 10 FM-IF input 1.3 1.3 RIN 2 A10254 RIN = 2 kΩ 11 11 AM-IF input 1.3 1.3 RIN 2 A10255 Internal load impedance R = 16.6 kΩ AM-AGC output 12 and FM S meter 12 0.7 0.2 R output A10256 Detector coil connected 13 between pins 13 and 4 (VCC1) 13 FM detector 4.5 4.5 A10257 Mono mode is forced on by 14 connecting pin 14 to ground. Pilot tone 14 detector filter and forced 2.9 3.8 mono switching A10258 FM reception mode is 15 enabled when pin 15 is open. AM reception mode is Phase 15 comparator filter and AM/FM enabled when pin 15 is 0 3.8 connected to ground. switching A10259 Continued on next page 51198RM(KI) No. 5837-4/13 Ordering number : EN5837 LA1828 Continued from preceding page Quiescent Pin Function number voltage (V) AM Equivalent circuit Remarks FM ROUT = 7.5 kΩ 16 L output 17 R output 16 1.4 1.4 ROUT 17 A10260 RIN = 50 kΩ 18 18 MPX input 1.3 1.3 RIN A10261 Output impedance AM: ROUT = 50 kΩ FM detector 19 output and AM FM: ROUT = 500 Ω ROUT(FM) 0.5 Capacitance between pin 19 19 1.5 detector output ROUT(AM) and ground should be optimzed for the best separation characteristics. A10262 Colpitts oscillator circuit 21 FM oscillator coil connected to pin 20. 20 FM-OSC 4.5 4.4 20 A10263 FM-FE block VCC Power is supplied from pin 4 R 21 VCC2 4.5 (VCC1) via external resistor (10 Ω). 4.4 21 4 A10264 22 FM-RF output 4.5 22 4.4 21 FM RF coil connected between pins 22 and 21 (VCC2). 24 FM-RF input 0 1.0 24 RIN = 1.8 kΩ A10265 23 GND2 0 0 FM-FE brock ground 51198RM(KI) No. 5837-5/13 Ordering number : EN5837 LA1828 Coil specifications (bottom view) • FM-BPF: SA-309 (Sumida) 88 to 108 MHz • FM-RF: SA-149 (Sumida) 3.6 mm dia., air core, 0.6 mm wire, 4 1/2 T • FM-OSC: SA-151 (Sumida) 3.6 mm dia., air core, 0.6 mm wire, 3 1/2 T • FM-Mix: SA-165 (Sumida) S • AM-OSC: SA-181 (Sumida) S S 3 ➃ - ➅ 2T ➂ - ➀ 12T 0.12 UEW f0 = 10.7 MHz Q0 ≥ 50 With 100 pF internal capacitor 4 2 1 6 3 2 1 • FM-Det: SA-1134 (Sumida) 6 • AM-IFT: SA-1136 (Sumida) S ➀ - ➂ 12T 0.10 UEW f0 = 10.7 MHz Q0 ≥ 70 With 82 pF internal capacitor 4 2 1 ➅ - ➃ 37T ➂ - ➀ 74T 0.06 UEW f0 = 796 kHz Q0 ≥ 80 L = 140 µH S A10269 A10395 3 4 6 3 S 4 2 1 6 ➂ - ➁ 122T ➃ - ➅ 9T ➁ - ➀ 62T 0.06 UEW f0 = 450 kHz Q0 ≥ 65 With 180 pF internal capacitor S A10267 A10270 • FM-IF filter: SFE10.7MS2 (Murata) • AM-IF filter: SFU450B (Murata) • Poly-varicon: FT-2217 (Toko) or PVC-22KTL (Mitsumi) • MW bar antenna: TYA-1005 (Mitsumi) ➀ - ➁ 68T ➂ - ➃ 9T f0 = 796 kHz Q0 ≥ 230 L = 260 µH 1 S 2 3 4 S A10394 51198RM(KI) No. 5837-6/13 Ordering number : EN5837 LA1828 • FM-Mix: YT-30224 (Mitsumi) for DUT • AM-OSC: HW-50425 (Mitsumi) for DUT S 3 4 2 1 S ➅ - ➃ 2T ➀ - ➂ 8T 0.12 UEW f0 = 10.7 MHz Q0 = 80 With 150 pF internal capacitor S 3 4 2 6 1 ➂ - ➁ 2T ➃ - ➅ 9T ➁ - ➀ 86T Q0 ≥ 80 L = 270 µH 6 S A10266 A10271 • FM-Det: YT-30103 (Mitsumi) for DUT • AM-IFT: YD-1073-1 (Mitsumi) for DUT S 3 4 2 1 6 S A10268 ➀ - ➂ 10T f0 = 10.7 MHz Q0 = 90 With 82 pF internal capacitor 3 4 ➀ - ➁ 58T ➃ - ➅ 7T ➁ - ➂ 94T f0 = 450 kHz With 180 pF internal capacitor 2 1 S 6 SFU450B A10272 51198RM(KI) No. 5837-7/13 + + B.P.F. AM FM MN ST L-OUT + R-OUT Ordering number : EN5837 Block Diagram FM Ant 24 23 FM RF GND2 22 21 20 VCC2 FM OSC 19 18 17 16 ST-SW VCO 14 PHASE COMP DECODER TRIG 15 FF FF DET FF FM MIX AM RF REG AM OSC VCC1 1 2 3 4 GND1 5 6 LA1828 PILOT DET AM MIX AM Ant 13 S-METER DET TUN LED ST LED FM-IF AM-IF 8 9 10 11 7 12 + AM/FM TUN AGC FM ST 51198RM(KI) No. 5837-8/13 10.7M 450k V-AGC V-SM + + VCC A10273 +_ 10µF 51Ω AM-OSC HW-50425 3 22 FM-RF SA-149 V-REG 0.047µF 2 1 39mH 23 1000pF 24 0.047µF B.P.F. SA-309 10pF 15pF 100µF 24pF 4 21 + 0.047µF 5 18pF 30pF 10Ω 20 FM-IFT YT-30224 FM-OSC SA-151 1000pF 100kΩ 5pF 2200pF 4.7µF 18 6 AM-IFT YD-1073-1 7 LA1828 19 10.7M +5.0V + AM ant-input (1000kHz) FM ant-input (98MHz) 10Ω 1000pF FM-Vosc (108.7MHz) 2SK315 100Ω AM/FM SD 1kΩ FM IF-input (10.7MHz) 8 17 6800pF 1kΩ FM ST 51Ω 0.047µF 300Ω 9 16 6800pF 3.3kΩ + 10 FM 11 22µF ST 3.3µF MN 14 + L-OUT R-OUT 0.1µF AM 15 + L.P.F amp 0.47µF L.P.F amp 0dB + 12 13 A10274 VCC=4.5V V-SM FM-DET YT-30103 2.2kΩ Ordering number : EN5837 LA1828 Test Circuit 51198RM(KI) No. 5837-9/13 18pF 10µF AM-OSC SA-181 3 22 FM-RF SA-149 V-REG 0.047µF 2 1 + 23 24 1000pF 390pF 15pF 100µF 27pF 4 21 10Ω 1000pF + FM-IFT SA-165 FM-OSC SA-151 1800pF 4.7µF 18 6 AM-IFT SA-1136 7 LA1828 19 10.7MHz 100Ω 0.047µF 5 18pF 30pF 10Ω 20 1000pF + AM antenna TYA-1005 B.P.F. SA-309 FM antenna 450KHz 8 AM/FM SD 1kΩ 17 6800pF 9 1kΩ FM ST 16 6800pF 3.3kΩ 0.47µF + 10 FM 0.1µF AM 15 + 11 22µF ST 3.3µF MN 14 + + 12 13 A10275 VCC=4.5V V-SM FM-DET SA-1134 2.2kΩ Ordering number : EN5837 LA1828 Sample Application Circuit 51198RM(KI) No. 5837-10/13 Ordering number : EN5837 LA1828 5 Total harmonic distortion, THD - % VCC =4.5V -10 fc = 98MHz fm =1kHz,22.5kHzdev Signal -20 Output - dBm -30 -40 t Ou AM -50 -60 -70 -80 Noise -90 -100 -20 0 20 40 60 80 100 120 FM characteristics VCC =4.5V fc = 98MHz fm =1kHz VSM 4 2.0 3 1.5 2 1.0 1 THD=25kHzdev 0 20 40 ANT input - dBµ VO 50 -30 40 -40 20 -50 SD LS -60 QS -70 10 0 1 2 3 4 5 6 Output, Vo - dBm Qs,Ls,SD - dBµ S/N - dB -20 Total harmonic distortion, THD - % -10 S/N 30 5 0 fc = 98kHz VIN =60dBµ 70 fm =1kHz,22.5kHzdev 60 -80 7 2 THD=75kHzdev 1 THD = 22.5kHz dev 1 2 Qs,Ls,SD - dBµ S/N - dB Quiescent current Icco - mA 4 5 6 7 fc =4.5kHz VIN =60dBµ fm =1kHz,22.5kHzdev 70 S/N 10 50 40 30 SD 20 10 2 3 4 5 6 LS 90 100 110 Reception frequency, fr - MHz MPX characteristics 10 QS 0 80 7 Power supply voltage, Vcc - V 60 VCC =4.5V 7 VIN =60dBµ f 5 c =98MHz L+R = 90% PILOT=10% 3 Separation - dB Total harmonic distortion, THD - % 3 FM characteristics 80 20 2 SUB ST 5 0 140 Power supply voltage, Vcc - V FM Vcc characteristics 7 120 3 60 1.0 100 4 0 0 VCC = 3V No input fm = 1kHz 0 1 80 FM Vcc characteristics fc = 98MHz VIN =60dBµ fm = 1kHz Power supply voltage, Vcc - V 30 60 ANT input - dBµ FM Vcc characteristics 80 0.5 THD=75kHzdev 0 -20 140 2.5 S meter voltage, Vsun- V FM characteristics 0 MONO MAIN MPX characteristics VCC =4.5V VIN =60dBµ fc = 98MHz 50 L+R = 90% PILOT=10% Sep - R 40 Sep - L 30 20 3 10 2 0.1 0.01 2 3 5 7 0.1 2 3 5 7 1.0 2 3 5 7 10 Modulation frequency, fm - kHz 2 3 0 0.01 2 3 5 7 0.1 2 3 5 7 1.0 2 3 5 7 10 2 3 Modulation frequency, fm - kHz 51198RM(KI) No. 5837-11/13 Ordering number : EN5837 LA1828 AM characteristics 0 VCC =4.5V -10 fc =1MHz fm=1kHz,30%mod 2.0 AM characteristics VCC =3V fc =1MHz Signal AGC voltage, VAGC - V -20 Output - dBm -30 -40 -50 -60 Noise -70 -80 1.5 1.0 0.5 -90 -100 0 20 40 60 80 100 120 0 0 140 20 40 AM characteristics 100 120 140 AM characteristics 0 VCC =4.5V fc =1MHz fm=1kHz VCC =4.5V fc =900kHz -10 fm=1kHz,30%mod 4 Signal -20 60 THD=30% -90 100 -100 0 80 120 140 20 40 ANT input - dB/m AM VCC characteristics -20 VO 50 SD 40 QS -30 -40 S/N Maximum sensitivity (input for 20 mV output) 30 5 -10 -50 20 -60 10 -70 Total Harmonic distortion, THD - % fc =1MHz VIN =74dB/m 60 fm=1kHz,30%mod Detector output VO - dBm 70 60 80 100 120 140 ANT input - dB/m AM VCC characteristics 25 fc =1MHz VIN =74dB/m fm=1kHz,30%mod 4 20 3 15 2 I CCO 1 10 THD= 80% 5 Quiescent current, ICCO - mA 40 -60 -80 T 20 -50 -70 0% =8 HD 1 at 2 -40 Be Output - dBm -30 3 0 0 Sensitivity - dB/m S/N - dB 80 IF Total harmonic distortion, THD - % 5 60 ANT input - dB/m ANT input - dB/m THD=30% 0 0 1 2 3 4 5 6 -80 7 0 0 1 2 3 4 5 6 0 7 Power supply voltage, Vcc - V Power supply voltage, Vcc - V AM characteristics 80 VCC =4.5V VIN=74dB/m 70 fm=1kHz,30%mod Sensitivity - dB/m S/N - dB 60 SD 50 QS 40 S/N Maximum sensitivity (input for 20 mV output) 30 20 10 0 400 600 800 1000 1200 1400 1600 1800 Reception frequency, fr - kHz 51198RM(KI) No. 5837-12/13 Ordering number : EN5837 LA1828 ■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. ■ Anyone purchasing any products described or contained herein for an above-mentioned use shall: ➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: ➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. ■ 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 May, 1998. Specifications and information herein are subject to change without notice. 51198RM(KI) PS No. 5837-13/13