UTC 2206 LINEAR INTEGRATED CIRCUIT 2.5W DUAL AUDIO POWER AMP DESCRIPTION The 2206 is a monolithic integrated circuit consisting of a 2-channel power amplifier .It is suitable for stereo and bridge amplifier application of radio cassette tape recorders. FEATURES *High output power Stero:Po=2.3W(Typ) at Vcc=9V,RL=4Ω. Bridge: Po=4.7W(Typ) at Vcc=9V,RL=8Ω. *Low switching distortion at high frequency. *Small shock noise at the time of power on/off due to a built-in muting circuit *Good ripple rejection due to a built-in ripple filter. *Good channel separation. *Closed loop voltage gain fixed 45dB(Bridge:51dB) but availability with external resistor added. *Minimum number of external parts required . *Easy to design radiator fin. DIP-12H BLOCK DIAGRAM VCC 12 OUT1 11 BS1 10 POWER GND Fin NF1 IN1 9 8 - OUT AMP 1 PRE GND 7 SHOCK NOISE REJECTOR INPUT AMP1 + RIPPLE FILTER - OUT AMP 2 1 BTL OUT UTC 2 OUT2 3 BS2 INPUT AMP2 + Fin POW ER GND 4 5 6 NF2 IN2 R.R UNISONIC TECHNOLOGIES CO. LTD 1 QW-R107-018,A UTC 2206 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta=25℃) CHARACTERISTICS SYMBOL RATING UNIT Vcc PD V W ℃ ℃ Supply Voltage Power Dissipation Operating Temperature TOPR 15 4* -20～+70 Storage Temperature *Fin is soldering on the PCB TSTG -40～+150 ELECTRICAL CHARACTERISTICS (Ta=25℃,Vcc=9V,f=1Khz RG=600Ω,unless otherwise specified) CHARACTERISTICS SYMBOL Operating Supply Voltage Quiescent Circuit Current Vcc IccQ Closed Loop Voltage Gain GVC Output Power Po Channel Balance CB Total Harmonic Distortion THD Input Resistance Ripple Rejection Ratio RI RR Output Noise Voltage VNO Cross Talk CT TEST CONDITION MIN 9 40 Vi=0,Stereo Stereo Bridge Stereo Bridge Stereo Stereo Bridge TYP MAX UNIT Vi=-45dBm RL=4Ω,THD=10% RL=8Ω,THD=10% RL=8Ω,THD=10% V mA 43 45 47 dB 49 51 53 dB 1.7 2.3 1.3 4.7 0 0.3 0.5 30 46 0.3 0.5 55 -1 Ro=250mW,RL=4Ω Stereo,RG=0Ω,Vr=150mW,f=100Hz Stereo,RG=0Ω Stereo, RG=10KΩ Stereo, RG=10KΩ,Vo=0dBm 11 55 21 40 40 1 1.5 1.0 2.0 W W W dB % % KΩ dB mW mV dB APPLICATION INFORMATION 1. Stereo application 8 + CH1 9 11 R2 RF + C1 i ) F i xed vol t ag e g ai n ( P i n 9 c on n ec t ed t o G N D d i r ec t l y) G v= 2 0 l og R1 R2 (dB) i i ) V ar i ab l e vol t ag e g ai n ( R f an d C 1 c on n ec t ed w i t h p i n 9 ) G v= 2 0 l og UTC R1 R2+RF (dB) UNISONIC TECHNOLOGIES CO. LTD 2 QW-R107-018,A UTC 2206 LINEAR INTEGRATED CIRCUIT 2. Bridge application INPUT 8 9 R2 RF 5 + CH2 - + CH1 R1 R3 + 4 R4 5K C2 C1 1 50 11 + 11 + C4 RL C 6 i ) F i x ed v ol t age gai n (Pi n 9 connected t o G ND di rect l y) G v = 20 l og R 1 R2 + 6(dB) i i ) Vari abl e v ol t age gai n RF and C1 connect ed wi t h pi n 9) R1 G v = 20 l og + 6(dB) R2+ RF APPLICATION CIRCUIT 1.Stereo Amplofier 100μ/16V C2 + + OUTPUT 1 C4 470μ/16V RL *C3 12 11 10 100μ/16V + C1 C5 1000μ/16V + 7 4 5 6 _ + 2 3 + + 470μ/6V RL 8 _ + 1 OUTPUT2 9 Fin 0.15μ VCC INPUT 1 *C7 0.15μ Fin C9 100μ 16V + + C10 100μ/16V INPUT2 C8 100μ/16V *polyester film capacltor UTC UNISONIC TECHNOLOGIES CO. LTD 3 QW-R107-018,A UTC 2206 LINEAR INTEGRATED CIRCUIT 2.Bridge Amplifier C5 + 1000μ/16V C4 + C3 0.15μ 470μ/ 16V 100μ/16V 100μ/16V + + C1 C2 12 11 10 Fin INPUT VCC 9 8 4 5 7 2206 RL 1 C6 2 3 470μ/16V + 6 + + + *C7 0.15μ Fin C10 100μ/16V C8 100μ/16V + C9 100μ/16V *polyester film capacltor UTC UNISONIC TECHNOLOGIES CO. LTD 4 QW-R107-018,A