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| UTC2206B STEREO AUDIO AMPLIFIER DESCRIPTION LI NEAR I NTEGRATED CI RCUI T The UTC2206B is a monolithic integrated consisting of a 2channel poweramplifier. It is designed for portable cassette players and radios. FEATURES * Higher output power Stereo: Po=2.3W(Typ.) at Vcc=9V,RL=4 Bridge: Po=4.7W(Typ.) at Vcc=9V,RL=8 * Low voltage distortion at high frequency * Small shock noise at the time of ON/OFF due to a built-in muting Circuit. * Closed loop voltage gain fixed 45dB( Bridge: 51dB) but available with external resistor added) HDIP-12 BLOCK DIAGRAM PRE. GND 7 IN1 8 NF1 9 POWER GND BS1 10 OUT1 11 Vcc 12 Fin Shock Noise Rejector Input Amp1 Output Amp1 Ripple Filter Input Amp2 Output Amp2 6 R.R 5 IN2 4 NF2 Fin Power GND 3 BS2 2 1 OUT2 BTL OUT YOUW ANG ELECTRONI CO. CS LTD 1 UTC2206B ABSOLUTE MAXIMUM RATINGS Characteristic Supply Voltage Power Dissipation(note) Junction Temperature Storage Temperature NOTE: Fin is soldering on PCB. VS PD Tj Tstg LI NEAR I NTEGRATED CI RCUI T Symbol Value 15 4 150 -40+150 Unit V W C C ELECTRICAL CHARACTERISTICS (Tamb=25,VCC=9V,f=1kHz, Rg=600,Unless otherwise specified) Parameter Symbol Test conditions Supply Voltage Quiescent Current Voltage gain Channel balance Voltage gain difference Input impedance Output Power VS IQ AV CB AV Ri PO Min Typ 9 40 45 51 0 30 2.3 1.3 4.7 0.3 0.5 30 46 55 Max 11 50 47 53 +1 1 Unit V mA dB dB dB k Stereo, Vin= - 45dBm Bridge Stereo 43 49 -1 Stereo Bridge Stereo Bridge Total Harmonic Distortion Input Resistance Ripple rejection ratio Cross-Talk THD Ri RR C.T. RL=4 ,THD=1 0% RL=8 ,THD=1 0% RL=8 ,THD=1 0% Po=250mW,RL=4 1.7 W 1.5 % k dB dB 21 40 40 Stereo,RG=0, Vr=150mW, f=100Hz RG=10k; Vo=0dBm APPLICATION INFORMATION 1. Stereo application 1). Fixed voltage gain(pin 4/9 connected to GND directly) Gv=20*log(R2/R1) (dB) 2). Variable voltage gain( refer to the right figure). Gv=20*log[R1/(R2+Rf)] (dB) 5/8 2/11 4/9 Rf C1 R2 R1 YOUW ANG ELECTRONI CO. CS LTD 2 UTC2206B 2. Bridge application LI NEAR I NTEGRATED CI RCUI T 8 R2 R3 5 9 Rf C1 4 R1 5K R4 1 50 C3 11 C3 RL 2 C4 1). Fixed voltage gain(pin 4/9 connected to GND directly) Gv=20*log(R2/R1) + 6 (dB) 2). Variable voltage gain( refer to the right figure). Gv=20*log[R1/(R2+Rf)] + 6 (dB) APPLICATION CIRCUITS Vcc 1000F 100F 8 12 10 11 0.15F Vcc 1000F 100F 8 12 10 11 0.15F 470F OUT1 0.22F 0.22F Vin 100F 9 Vin 1 100F 9 RL RL 100F 4 100F 1 6 100F Fin and 5, 7 3 2 0.15F 0.22F 5 100F 3 470F 0.15F OUT2 Vin 2 100F 4 2 RL 6 100F Fin and 1,7 Fig. 5 Bridge Application Fig.6 Stereo Application YOUW ANG ELECTRONI CO. CS LTD 3 |
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