AN7256 PANASONIC | Alldatasheet
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D—-DIAR IC Panasonic ———— eee A-FLABFM FVARME, RAR FM IF Amplifier, Detector for Car Radios an k Unie! mm AN 7256 (29-9 7 tC MAES tt FM IF YL AFL, 1B g0+03 LLYLIWA YA RY HZ MS EMSS PT gS o Sell] a & s — at ay i = E} omtim, aH o| ee 2k OFA EFF REAM CHARS SURE EO ; == 2 @ AFC i MF Od & | | 2. “ab OREO AD ERMM (47h) HB EUAT ED Ve Fe VANEAU HY ay SOBA I Od S 2 7 S OS aT Y TROBE ONE 3 Se 2 @SILIB EY ty 7-2 TIL NF MEER 08 620.25 @ Features 18-Lead Zigzag ‘Type Shrunk SIL Plastic Package @High gain, low distortion Using quadrature detector, reduction in component and adjustment @Provided with AFC output terminal © Provided with output for automatic tone control (high cut) and stereo channel separation control ©Muting sensitivity freely settable © Compact 18-lead single-in-line plastic package @ 70-778 Block Diagram O-O-O-O @-O-@) PY FP] oe O77 IF Ist IF 2nd | | Voltage AFC ° ® 5-Stage 1suge| | | an Limiter Limiter lad P- 0) Level De M Ci ar evel tector jute Circuit ‘Amp. (GND aoe. @ —174—
B@ RFH/ Pin Pin No. weft | Pin Name [Pin Nol ow OH Pin Name 1 | ist F7>7AN Ist IF Input [10 [mie Vee 2 | IstIFr>7<4-<% | Ist IF By-pass Quad Input 3 astIFre7<iesx | Ist IF By-pass | 12 | wan | Ref. Voltage 4 | ist IFT eo 77-2 Ist IF GND Quad 472 Quad Bias 5 | istIF re vin [Ast IF Output u_|_AFC AFC 6 | and IF Py es g xn 2nd IF By-pass 15 Hea ID, AF Output 7 | dnd IPP 2 7A | 2nd IF Input 16 | fa bate Mute Adjustment te L “= Gustment 8 | and IF YY <4 7<% | 2nd IF By-pass Ww | 2¥be—v-L7+n | Control Signal 9 [| and IF i 2nd IF Output | | 72 GND @ @HRAEH Absolute Maximum Ratings (Ta=25°C) Item Symbol Rating Unit seth Vou 4 Vv _ Ws CASTS Haak Tae 30~ +75 c — tHE (6 aa Toe 55~ +150 c = BANE “Electrical Characteristics (Veo =8V, fo:=10.7MHz, f,=400Hz, 30%, Ta=25°C | We Pee 7k Vou 3dBe BAN 30.5[ 33.5] 36.5 | dBu ARIE Det! : Pin dS voltage, V.=70dByz 145/165) 190 | mV Wayt 74s > ba AFC Pin dd-G voltage. Z - Ht 7 bMUECAPC) | Vovotten 1 | at without signal 470) -200| 70 mV ~ ae 7 v iw _ at without signal . hb + “
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