UNISONIC TECHNOLOGIES CO., LTD BA3308 Preliminary LINEAR INTEGRATED CIRCUIT DUAL PREAMPLIFIER WITH ALC SIP-9 DESCRIPTION The UTC BA3308 is designed to have dual preamplifier ICs with built – in ALC circuits for use in stereo amplification. The preamplifiers have high gain and low distortion. A built-in rectifier for ALC circuit implies good channel balance and large dynamic range can be constructed with addition of just an external time constant circuit. SOP- 14 FEATURES * Wide operating power supply voltage range (VCC =4.5V ~ 14V) * Power-on mute circuit to avoid “pop” noise generation. * No input coupling capacitors are necessary * High gain (GVO=80dB)and low noise (VNIN=1µVrms) * Low distortion (THD=0.1%) * Good ALC channel balance with built-in ALC rectifier diode * Adjustable ALC dynamic range by external input resistor. ORDERING INFORMATION Ordering Number Lead Free BA3308L-G09-T BA3308L-S14-R BA3308L-S14-T Halogen Free BA3308G-G09-T BA3308G-S14-R BA3308G-S14-T www.unisonic.com.tw Copyright © 2011 Unisonic Technologies Co., Ltd Package Packing SIP-9 SOP-14 SOP-14 Tube Tape Reel Tube 1 of 4 QW-R107-015.Ba BA3308 Preliminary LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM SIP-9 SOP-14 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 4 QW-R107-015.Ba BA3308 Preliminary ABSOLUTE MAXIMUM RATING (Ta = 25℃) PARAMETER Power Supply Voltage Power Dissipation Derating above Ta = 25℃ SYMBOL VCC SIP-9 SOP-14 SIP-9 SOP-14 Operating Temperature Storage Temperature LINEAR INTEGRATED CIRCUIT PD TOPR TSTG UNIT V mW ℃/mW ℃ ℃ RECOMMENDED OPERATING CONDITIONS (Ta = 25℃) PARAMETER SYMBOL Power Supply Voltage VCC Note: This IC is not designed to be radiation-resistant. RATINGS 16 950 450 9.5 4.5 0 ~ +85 -65 ~ +125 RATINGS +4.5~ +14 UNIT V ELECTRICAL CHARACTERISTICS (Ta =25℃, VCC =7.0V, f =1kHz and BPF: 20Hz ~ 20kHz, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITIONS Maximum Output Voltage VOM THD=1% Conversion with Rg=2.2kΩ and Input Conversion Noise Voltage VNIN NAB34dB at 1kHz Quiescent Current IQ VIN =0Vrms Input Resistance RIN Total Harmonic Distortion THD NAB34dB, VOUT =40mVrms Open Loop Voltage Gain GVO VOUT = −10dBV RG =3.9kΩ, VIN =−70dBV ALC Range ALC reference, THD=3% ALC Channel Balance ∆ALC VIN = −60dBV, −30dBV Channel Separation CS VO =0dBV, NAB34dB UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 0.6 TYP 1.2 MAX UNIT Vrms 1.0 2.0 μVrms 4.5 45 0.3 70 3.3 31.5 0.1 80 mA kΩ % dB 40 70 60 0 75 1.5 15 dB 2.5 dB dB 3 of 4 QW-R107-015.Ba BA3308 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT MUTE ch2 + ch1 + ALC 1 2 4 3 R5 18kΩ R1 3.9KΩ R3 39Ω C3 100μF + + + C1 5 R7 1MΩ C5 10μF C7 22μF + 7 C8 330μF + C6 10μF 10μF 9 8 R2 3.9kΩ Vcc 7V R6 18kΩ + C2 10μF R8 220Ω R4 39Ω + C4 100μF OUTPUT2 INPUT2 INPUT1 OUTPUT1 R9 (R10) R11(R12) 120kΩ 4.3kΩ + 6 For playback,instead of R5 and R6,connect the following NAB time constant circuit between pins 1 and 3 and 7 and 9. C9 (C10) 0.027μF 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. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 4 QW-R107-015.Ba