ICs for FM/AM Tuner AN7017S, AN7017SB FM/TV Front-end ICs for 1.5V Headphone Stereo, Radio Cassette Recorder ■ Overview Unit : mm 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 ■ Features • Low current consumption • Band switching circuit built-in • A single chip integrating FM/TV band • IF amp. built-in 0.3 0.15 0.65 0.1±0.1 1.5±0.2 1.27 0.4±0.25 0.4 The AN7017S and the AN7017SB are the ICs incorporating FM/TV front-end most suitable for headphone stereo. Sealed in a 16-pin flat package, the chip operates stably at TV band (170MHz ~ 222MHz) FM band (76MHz ~ 108MHz). RF amplifiers and oscillations are provided in FM/TV band individually, and are designed most suitably. So both characteristics of FM/TV band are satisfied. 10.1±0.3 AN7017S 4.2±0.3 6.5±0.3 16-Lead SOP Package (SOP016-P-0225) AN7017SB Unit : mm 16 8 9 0.5 4.3±0.3 1.5±0.2 0.65 0.1±0.1 0.15 0.35±0.1 6.5±0.3 0.8 1 6.3±0.3 16-Lead SOP Package (SSOP016-P-0225a) ■ Block Diagram VCC1 16 VCC2 15 14 13 12 FM L – OSC 11 10 9 TV L – OSC TV RF Amp. Mix. FM RF Amp. 1 IF Amp. TV/ FM SW 2 3 4 GND 5 6 7 8 GND ICs for FM/AM Tuner AN7017S, AN7017SB ■ Absolute Maximum Ratings (Ta=25˚C) Symbol Rating Supply Voltage Parameter VCC 2.5 Unit V Supply Current ICC 10 mA mW Power Dissipation PD 30 Operating Ambient Temperature Topr –22 ~ + 75 ˚C Storage Temperature Tstg –55 ~ + 125 ˚C ■ Recommended Operating Range (Ta=25˚C) Parameter Symbol Range Operating Supply Voltage Range VCC 1V ~ 2V ■ Electrical Characteristics (VCC =1.2V, Ta = 25˚C) Parameter FM TV Symbol Condition No Signal Current Itot (FM) Conversion Gain Gconv (FM) Oscillation Voltage VOSC (FM) S/N min. typ. max. 2.5 Note) VCC=1V Vin= 60dBµ Unit mA 31 dB 73 mV S/N (FM) 55 dB No Signal Current Itot (TV) 3.2 mA Conversion Gain Gconv (TV) Oscillation Voltage VOSC (TV) S/N S/N (TV) Note) VCC=1V Vin=60dBµ 27 dB 57 mV 53 dB Note) Conversion Gain= 20log (∆V(µV) ÷100) ∆V is output difference at 40dBµ and 46dBµ. ■ Characteristics Curve Supply Voltage Characteristics (FM)– Oscillation Frequency Deviation S/N, S/N Sensitivity, Limiter Sensitivity, Itot Frequency Characteristics (FM) –VOSC, S/N Sensitivity, Limiter Sensitivity Input/Output Characteristics – S/N, Vout 80 VCC = 1.5V fin = 78MHz 30% Mod. Ta = 25˚C 0 60 S/N 50 2 1 0 –1 –2 –3 40 30 Itot 4 3 20 S/N Sens 10 0 Limiter Sens 0 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 VCC (V) 2 –10 S/N –20 60 50 Vout –30 40 –40 30 –50 20 10 –60 0 20 40 60 80 Vin (dBµ) 100 0 120 S/N (dB) fsift Vout (dB) 70 fsift × 102 (kHz) 80 VCC = 1.2V Ta = 25˚C 70 S/N Sens (dBµ), Limit Sens (dBµ) 90 Itot (mA) Limit Sens (dBµ), S/N Sens (dBµ), S/N (dB) Ta =25˚C 60 VOSC 100 50 50 40 30 0 20 S/N Sens 10 Limit Sens 0 0 78 82 86 90 94 98 102 106 Frequency fin (MHz) VOSC (mV) 100 ICs for FM/AM Tuner AN7017S, AN7017SB 4 3 2 1 S/N (Vin = 60dB) 50 40 Itot 30 VCC=1.2V 70 VOSC –10 60 S/N –20 50 Vout –30 40 –40 30 –50 20 –60 10 S/N Sens (30dB) 20 Limit Sens (–3dB) 10 0 50 0 40 30 S/N Sens 20 Limit Sens 10 0 0 10 20 30 40 50 60 70 80 90 100 110 120 Vin (dBµ) 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 VCC (V) 50 60 0 176 180 184 188 192 196 200 204 208 212 216 220 Frequency fin (MHz) VCC=1.2V 470kΩ 1µF 200kΩ ■ Application Circuit + 470kΩ 470kΩ 100Ω 47pF 12pF 330pF 100kΩ 470kΩ 100kΩ 12pF 1µF 12pF 0.001µF 100pF 200pF 10Ω + 12pF 100kΩ 100kΩ 0.001µF 100kΩ 100kΩ 16 15 14 13 12 11 10 9 6 7 8 0.01µF 10Ω 0.01µF AN7017S, AN7017SB FM 1 2 3 4 5 TV 0.022µF 10V 200kΩ 0.01µF BPF 1µF to IF IC SFE10.7MA5 SFE10.7MA5 FM SG FM Antenna Coil FM Oscillation Coil TV Antenna Coil FM Oscillation Coil : : : : Internal diameter 2.5mm. Lead diameter 0.35mm 11T Variable Capacitance : SVC203CP (SANYO) Internal diameter 2.5mm. Lead diameter 0.35mm 13T Ceramic Filter : SFE10.7MA5 (MURATA) Internal diameter 2.5mm. Lead diameter 0.35mm 3T Band Pass Filter : TVSB4 (SOUSHIN) Internal diameter 2.5mm. Lead diameter 0.35mm 4T IF Amp. : AN7236 (Panasonic) VOSC (mV) 60 fsift × 102 (kHz) fsift 70 100 VCC=1.5V fin=180MHz 305% Mod. 0 S/N (dB) Limit Sens (dBµ), S/N Sens (dBµ) Itot (mA) 5 3 2 1 0 –1 –2 –3 –4 –5 80 Frequency Characteristics (TV) –VOSC, S/N Sensitivity, Limiter Sensitivity Input/Output Characteristics (TV) –S/N, Vout Vout (dBV) 6 Limit Sens (dBµ), S/N Sens (dBµ), S/N (dB) Supply Voltage Characteristics (TV)– Oscillation Frequency Deviation S/N, S/N Sensitivity, Limiter Sensitivity, Itot ICs for FM/AM Tuner AN7017S, AN7017SB ■ Pin Descriptions Pin Name Pin No. 1 FM RF Input Typ.Waveform FM signal Description Equivalent Circuit 16 FM RF input pin 15 7pF 1 15 FM RF Output FM signal FM RF output pin 4 GND DC 0V GND pin Used for RF amp. /Mixer. 16 Mix. output pin Ceramic Filter connect to output. 3 9 5kΩ 5 6 IF Input 10.7MHz IF signal TV/FM switch 5 IF input pin TV/FM switching At FM, stop the current source of TV circuit by connecting Pin6 to VCC, and at TV, stop the current source of FM circuit by opening this. 5kΩ 10.7MHz IF signal 2.2kΩ Mix. Output 2.2kΩ 3 9 FM TV 6 16 7 8 IF Output GND 10.7MHz IF signal IF output pin GND pin Used for IF amp. /oscillation circuit current source 7 ICs for FM/AM Tuner AN7017S, AN7017SB ■ Pin Descriptions (Cont.) TV OSC 160MHz ~ 216MHz oscillation TV OSC pin 10kΩ 9 10 · 11 7pF 7pF FM OSC 65MHz ~ 96MHz oscillation FM OSC pin 2 TV RF Input TV signal TV RF input pin 10kΩ 9 13 270Ω 12 12 · 13 11 270Ω 10 7pF 7pF 16 14 7pF 2 14 TV RF Output TV signal TV RF output pin 16 VCC1 DC 1.5V Supply voltage pin Used for RF amp., mixer 10kΩ DC 1.5V 10kΩ VCC2 Equivalent Circuit Description Supply voltage pin Used for IF amp. /oscillation circuit current source 270Ω 9 Typ.Waveform 270Ω Pin Name Pin No.