UTC1600 LINEAR INTEGRATED CIRCUIT SUMC 1 SINGLE-BAND AM RADIO

Transcription

1 UTC SINGLE-BAND AM RADIO DESCRIPTION The UTC, Being an Am tuner IC placed in SIP-, provides the functions of Am tuner. It is usable in the band range up to SW band and is especially suited for use in lowcost AM radios and radio-controlled receivers.it includes RF amplifier,mixer, amplifier,yector and. FEATURES *Minimum number of external parts required. *Low current dissipation(.7ma,tpyical) *Low supply voltage(.8v, minimum) *Adoption of double-balanced mixer. *Usable in the band range up to SW band SIP- BLOCK DIAGRAM T µf kω.7µf 5Ω 7 8.5µF µf 5 ABSOLUTE MAXIMUM RATINGS(Ta=5 C) Characteristic Symbol Value Unit Maximum Supply voltage V Allowable Power dissipation Pd mw Operating Temperature Topr - ~+7 C Storage Temperature Tstg -5 ~ +5 C SUMC

2 UTC ELECTRICAL CHARACTERISTICS (Ta=5 C,=V,f=MHz,unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units Quiescent current Icc Vin=.7. ma Vo Vin=dBµ,kHz,% mod dbm ection 78 mv Vo Vin=8dBµ,kHz,% mod dbm 5 5 mv Signal-Noise Ratio S/N() Vin=dBµ 8.5 db S/N() Vin=8dBµ 8 5 db Total Harmonic distortion THD Vin=8dBµ,kHz,% Mod.. % THD Vin=dBµ,kHz,% Mod..5 % T(intermediate frequency transformer).using Double tuning Coil.Using Ceramic filter Pin8 Pin7 Pin8 Pin7.7µF Pin Pin SPECIED TEST CIRCIT DIAGRAM.7µF 5Ω T T S--(Sumida) T HW-57(Mitsumi).5µF µf µh AM SG ~ 8 5Ω.7µF pf pf kω T µf SUM

3 UTC TEST CIRCUIT (): AM-MW.7µF 5Ω L T 8 7pF L TN-8(Mitsumi) T S--(Sumida) T HW-57(Mitsumi).5µF µf 8pF kω T µf pf TEST CIRCUIT (): AM-MW.7µF 5Ω L T 8 L HW-5(Mitsumi) T HW-55(Sumida) T HW-57(Mitsumi).5µF µf pf 5kΩ T µf 5pF SUM

4 UTC TEST CIRCUIT (): SW( 7. TO.MHZ).7µF 5Ω T T HW-57(Mitsumi) T HW-5(Sumida) T HW-57(Mitsumi).5µF µf ~ IEC dummy T 8 5pF pf kω T µf 7pF 7pF COIL SPECICATIONS. MW antenna Bar antenna(for PVCKTL) TN-8(Mitsumi) - T+T,L=µH,Qo=(>) - T,L=5µH,Qo=5 (>5) Tight solenoid direct winding - 7T,.5φ space winding - T tight solenoid winding Bar antenna(for PVC-LYT) HW-5(Mitsumi) - T+T,L=µH,Qo> - T SUM

5 UTC. MW OSC S-(Sumida) for PVCKTL HW-55(Mitsumi) for PVC-LYT AM T - 5T, - 8T Qo>8,L=µH pf - T, - T, - 8T, Qo>8,L=7µH pf.7µf To Pin 7 AM T To Pin HW-575 (mitsumi) - 8T, - 7.5T Qo= HW-58 (mitsumi) - T, - T - 8T Qo=7 HW-57(Mitsumi) - 8T, - 7T - 7T Qo=,f=5kHz internal 8pF SUM5

6 UTC TYPICAL APPLICATION.Earphone Tr. Rank=G (8~5).kΩ 7kΩ To EarPhone 7kΩ.µF 8pF UTC.5µF kω µf SD Ω 5Ω SD.Power amplifier using Tr.Rank=E (~) UTC kω µf.5µf kω 5Ω Ω 7pF DS SC5.5Ω SB58 SB55.5Ω µf RL=~8Ω SUM

7 UTC TYPICAL PERFORMANCE CHARACTERISTICS Noise Voltage ection output(dbm) THD khz,% Fig. MW input/output characteristics Noise voltage khz,% ection output THD khz,8% 5 Total harmonic distortion(%) Pin Voltage,(V)...8. Fig. current dissipation,pin voltage characteristics f=mhz khz,% mod Icc Vpin 5 Current dissipation,icc(ma) Antenna input voltage(db/m) Antenna input voltage(db/m) ection output,whistle output(dbm) Fig. Whistle characteristics ection output khz,% mod - - whistle max Antenna input voltage(db/m) Attenuation (db) Fig. Selectivity characteristics f=mhz khz,% mod output mv constant Frequency (khz) ection output(dbm), sensitivity(db/m) Vpin,(V) Sensitivity khz,% mod output mv.5 Vpin 8dB/m..5 Fig.5 characteristics ection output khz,% mod db/m Vpin quiescent Supply Voltage,(V) Attenuation (db) Fig. MW Fidelity characteristics fi=mhz input=db/m %Mod Attenuation THD k k Modulation Frequency (Hz) 5 Total Harmonic distortion,thd(%) Sensitivity (db/m) Interference (db) 8 Fig.7 MW Reception characteristics Tracking adjust at each frequency interference Image frequency interference Usable Sensitivity,kHz,% Mod, S/N=dB Max. Sensitivity,kHz,% Mod, out= mv.k.8k k.k.k ReceivingFrequency (khz) Response(dB) Fig.8 Spurious Response khz.%mod. - MHz reception M M M M Frequency (Hz) SUM7