AN7273

AN7273 PANASONIC | Alldatasheet

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Technical content

The AN7273 and the AN7273S are the ICs designed for Hi-Fi stereo tuner. They are functioned with stop signal pin besides the AN7223S function. n Features

• Level meter output (FM–AM common use)
• Stop signal output (for synthesizer tuner)
• AM : including RF amplifier and high sensitivity
• Low power consumption
• Low shock noise level from function switch operation
• Fewer external parts AN7273, AN7273S AM Tuner, FM/AM IF Amplifier Circuit 8 9 5 18 6 2 10 11 AM–FM IF Amp. FM IF Amp. FM Quad. Det. Mute Det. AF Amp.Mute or Shock Noise CancellerLevel Meter AM Mixer AM RF Amp. AM L. Osc. AGC AM Det. GNDV CC (AM) V CC V REF n Block Diagram 3 ~ 15˚ 7.62–0.25 0.3 + 0.1 – 0.025 3.8–0.25 (3.45) 0.51min. 2.54 1.2–0.25 0.5–0.1Unit : mm 6.3–0.25 21.7–0.3 9 10 AN7273 18-Lead DIP Package (DIP018-P-0300E) 1.30.4–0.251.27 0.1 0.3 1.2–0.3 0.65 0.15 AN7273S 12.6–0.3 7.7–0.3 5.4–0.3 Unit : mm 18-Lead SOP Package (SOP018-P-0300)

AN7273, AN7273S ICs for FM/AMT uner Pin N o. Pin N am e FM IF Input A M Supply/M ute A djustm ent A M R F Input A M M ixer O utput A G C O utput (2) A G C O utput (1) A M IF Input IF B y-pass IF B y-pass n Pin D escriptions Pin N o. Pin N am e A M D etection O utput G N D FM D etection C oil A F O utput V C C Level M eter O utput A FC O utput R eference V oltage Local O scillation C oil Param eter Sym bol R ating U nit PD Topr Tcsg V C C IC C A N 7273 A N 7273S A N 7273 A N 7273S A N 7273 A N 7273S Pow er D issipation O perating A m bient Tem perature Storage Tem perature Supply V oltage Supply C urrent m W V m A 14.4 317 *1 210 *2 –20 ~ + 75 –20 ~ + 75 –55 ~ + 150 –55 ~ + 125 n Absolute M axim um R atings (Ta=25˚C ) D C m easurem ent V i =80dB µ Input at V O = –3dB Input at V O =m ore than –20dB V i =70dB µ V i =100dB µ D C m easurem ent V i =80dB µ Input at V O =10m V V i = –10dB µ V i =80dB µ Param eter Sym bol C ondition m in. typ. m ax. U nit n Electrical C haracteristics (V C C = 5V , Ta= 25˚C ) Itot V O V i (lim ) V i (M ute) V 15–11 V 15–11 Itot V O Sm ax. V 15–11 V 15–11 43.5 0.61 1.14 1.12 100 0.8 1.26 9.5 1.25 125 49.5 1.1 1.42 100 130 1.38 m A m V dB µ dB µ V V m A m A dB µ m V V Total C ircuit C urrent D em odulation O utput Level Lim iting Sensitivity M uting Sensitivity Level M eter D riving O utput (1) Level M eter D riving O utput (2) Total C ircuit C urrent D etection O utput Level M ax. Sensitivity Level M eter D riving O utput (1) Level M eter D riving O utput (2) N ote) U nless otherw ise specified, f i =10.7M H z, M od. = 22.5kH z, fm = 400H z (FM ) fi =1M H z, M od. = 30% , fm = 400H z (A M ) FM A M Param eter Sym bol R ange n R ecom m ended O perating R ange (Ta = 25˚C ) O perating Supply V oltage R ange V C C (opr) 3 ~ 12V

ICs for FM/AMT uner AN7273, AN7273S V i (lim ), V O , Itot –V C C (FM ) V O –V i –20 –40 –60 –80 Input V oltage V i (dB µ) O utput V oltage V O (dB ) 600 20 40 12010080 M ute O N V O –D f –10 –20 –30 –40 –50 –60 –70 Input Frequency C hange D f (kH z) O utput V oltage V O (dB ) 0–300 –200 –100 300200100 140 120 100 Input Lim iting V oltage V i (lim ) (dB µ) Total C ircuit C urrent Itot (m A ) 0 2 4 6 8 10 12 14 16 O utput V oltage V O (m V ) O utput V oltage V O (m V ) Supply V oltageV C C (V ) V C C = 5V fi = 10.7M H z fm = 400H z, 22.5kH z 140 120 100 Input V oltage V i (dB µ) Total C ircuit C urrent Itot (m A ) 0 2 4 6 8 10 12 14 16 Supply V oltage V C C (V ) fm = 400H z, 30% fi = 1M H z V O , V i, Itot –V C C (A M ) V O Itot (M ute O N ) Itot (M ute O FF) V i (lim ) V O (V i = 80dB µ) Itot V i (at V O = 10m V ) M ute O FF M ute O N M ute O FF V C C = 5V fi = 10.7M H z fm = 22.5kH z, 400H z 0dB = 108m V V O , V no, TH D –V i (FM ) –10 –20 –30 –40 –50 –60 –70 –80 Input V oltage V i (dB µ) O utput V oltage V O (dB ), O utput N oise V oltage V no (dB ) 600 20 40 12010080 Total H arm onic D istortion TH D (% ) 0dB = 81m V V C C = 5V fm = 400H z fi = 1M H z V O , S/N , TH D –V i (A M ) –10 –20 –30 –40 –50 –60 –70 Input V oltage V i (dB µ) O utput V oltage V O (dB ), Signal to N oise R atio S/N (dB ) 600 20 40 12010080 Total H arm onic D istortion TH D (% ) V 15 –V i 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 Input V oltage V i (dB µ) Level m eter V oltage V 15 (V ) 600 20 40 12010080 V C C = 5V (A M ) fi = 1M H z fm = 400H z, 30% (FM ) fi = 10.7M H z fm = 400H z, 22.5kH z TH D M od. = 80% V O S/N M od. = 30%TH D V no V O A M FM

AN7273, AN7273S ICs for FM/AMT uner 1 2 3 4 5 6 7 8 9 17 16 15 14 13 12 11 10 A N 7273/S C F1T3 2kΩ 10kΩ O N O FF M ute 330Ω From FM Front End. 0.022µF 0.022µF 4.7µF 100µF 0.022µF 0.0047µF 0.01 µF 27kΩ 470Ω 2.2kΩ D 1 51Ω 100µF 100µF 47µF 47ΩFM A M0.022 µF V 152.2µF 10µ F 5.1kΩ0.022µF T2D 1 : M A 27W V C C =5V V O (FM , A M ) 0.022µF n Application Circuit 22µF 0.022µF 47µF 0.0047µF 0.022µF 100µF 2.2kΩ 0.01µF 27kΩ A F O utput V C C 10µF 5.1kΩ 470Ω V C C 1µF47Ω SW FM A M 2.2kΩ M ute A dj. 10kΩ 100µF 0.022µF M ute SW M A 27W (M atsushita) A M IN A M A N T C 1 A N T O SC C F2 0.022µF 0.022µF 0.022µF 47pF 4.7µF 100µFC F1 330Ω FM IF Input + – A N 7273 n Printed Circuit Board Layout

ICs for FM/AMT uner AN7273, AN7273S Sym bol U se, Freq. Type N o. M aker C onnection D iagram N um ber of Turns Tuning C ap. U nloaded Q M atsushita M atsushita M atsushita 100pF 1500pF 90–20% 95–20% 60–30% FM Q uad. C oil 10.7M H z A M M W O sc. C oil A M M ix. O utput 455kH z ELL– 7S754 ELF– 7S752A n C oil Specifications 1 – 2 8T 2 – 3 5T 4 – 6 3T 1 – 2 4T 2 – 3 125T 4 – 6 7T 3 – 2 35T 6 – 4 10T 2 – 1 19T EIA – 7S802A TokoC F1 Sym bol M aker B and W idth Loss n C eram ic Filter Specification 455kH z U se Type N o. C enter Freq. A M IF C FM 2– 455B 7kH z (–6dB ) 2.6dB