utc TA7358P linear integrated circuit utc unisonic technologies co., ltd. 1 qw-r110-005,a fm front-end description the utc TA7358P is designed for a fm front-end application, which is suitable to a portable radio or a radio cassette. comparing with conventional types, supply voltage dependence, overload characteristics and spurious radiation characteristics are improved. features *excellent supply voltage dependence of local oscillator: oscillator stop vcc=0.9v(typ) *improved inter-modulation characteristics by double balanced type mixer circuit *low spurious radiation *wide operating voltage range( 1.6v to 6v) sip-9 block diagram b.p.f rf amp. mixer buffer amp. bias local oscillator reg 6 4 8 7 5 2 1 3 9 input to if amp. vcc absolute maximun ratings (ta=25 c) parameter symbol value unit supply voltage v cc 8 v power dissipation p d 500 mw operating temperature topr -25 ~ 75 c storage temperature tstg -55 ~ 150 c
utc TA7358P linear integrated circuit utc unisonic technologies co., ltd. 2 qw-r110-005,a electronic characteristics (ta=25 c, vcc=5v, f=83mhz, fm=1khz, ? f=22.5khz, unless otherwise specified) parameter symbol test circuit test conditions min typ max unit quiescent current i q v in =0 5.2 8 ma -3db limiting sensitivity vi n(lim) 2 -3db 3 7 db quiescent sensitivity qs(db ) 2 11 db conversion gain gc 31 db local osc voltage vosc 1 fosc=60mhz 90 165 220 mvrms pin 1 parallel input resistance rip1 3 57 ? impedance parallel output resistance cip1 pf pin 3 parallel input resistance rip3 3 f=83mhz 25 ? impedance parallel output resistance cip3 2 pf pin 4 parallel input resistance rip4 3 2.7 ? impedance parallel output resistance cip4 3.3 pf pin 6 parallel input resistance rip6 3 f=10.7mhz 100 ? impedance parallel output resistance cip6 4.8 pf local osc stop voltage v stop 1 0.9 1.3 v
utc TA7358P linear integrated circuit utc unisonic technologies co., ltd. 3 qw-r110-005,a test circuit 1 test circuit 2 1 2 3 4 5 6 7 8 9 b.p.f bpw b5 c.f. ~ utc TA7358P 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 v.v input fm sg zo=75 ? 1000pf 4.7pf 22pf 15pf 15pf 0.01 f 100 f vcc gnd 22 f 22 f gnd 1 f 0.015 f 100 f vcc=5v 0.01 f 0.01 f 0.047 f 47k ? utc ta7640ap v od t1 t2 t3 t4 1 2 3 4 5 6 7 8 9 f vco vcc gnd v osc 30k ? 200 ? 62pf 20pf 0.01 f 0.01 f utc TA7358P t2
utc TA7358P linear integrated circuit utc unisonic technologies co., ltd. 4 qw-r110-005,a test circuit 3 3 6 9 1 5 2 1000pf 0.01 f 0.01 f h l vcc rx meter (a) r ip1 6 9 3 5 2 1000pf 0.01 f 0.01 f h l vcc rx meter (b) r op3 ,c op3 3 6 9 4 5 2 1000pf 0.01 f 0.01 f h l vcc rx meter (c) r ip4 ,c ip4 3 69 5 2 1000pf 0.01 f 0.01 f h l vcc rx meter (d) r op6 ,c op6 utc TA7358P utc TA7358P utc TA7358P utc TA7358P test circuit coil data coil fo qo turns capacitance t1 rf coil 100mhz 100 0.7mm ,2.25t center tap 15pf 5.0mm 7mm t2 osc coil 100mhz 100 0.7mm ,2.5t 15pf 5.0mm 7mm t3 ift 10.7mhz 115 (1) ~ (3) 2t (4) ~ (6) 1t 0.12mm 75pf 1 2 3 4 6 t4 quad coil 10.7mhz 150 (4) ~ (6) 14t 0.12mm 47pf 1 2 3 4 6
utc TA7358P linear integrated circuit utc unisonic technologies co., ltd. 5 qw-r110-005,a utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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