UNISONIC TECHNOLOGIES CO., LTD +W DUAL BRIDGE AMPLIFIER DESCRIPTION The UTC is a +W dual bridge amplifier specially designed for TV and Portable Radio applications. HZIP-A FEATURES * Wide Supply Voltage Range ( ~ V) * Minimum External Components * No SWR Capacitor * No Bootstrap * No Boucherot Cells * Internally Fixed Gain * Stand-BY & Mute Functions * Short Circuit Protection * Thermal Overload Protection HZIP-B HZIP-D ORDERING INFORMATION Ordering Number Lead Free Halogen Free Package Packing L-J-A-T G-J-A-T HZIP-A Tube L-J-B-T G-J-B-T HZIP-B Tube L-J-D-T G-J-D-T HZIP-D Tube of Copyright 0 Unisonic Technologies Co., Ltd
PIN CONFIGURATION HZIP-A 5 OUT+ OUT- IN STAND-BY(ST-BY) IN OUT- OUT+ HZIP-B 5 OUT+ OUT- IN STAND-BY(ST-BY) IN OUT- OUT+ 5 HZIP-D OUT + OUT - V CC IN STAND-BY(ST-BY) IN V CC OUT - OUT + UNISONIC TECHNOLOGIES CO., LTD of
BLOCK DIAGRAM IN ST-BY 0.µF + - OUT+ 0µF 0nF IN 0.µF VREF - + + - OUT- OUT+ - + OUT- UNISONIC TECHNOLOGIES CO., LTD of
ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC 0 V Output Peak Current (internally limited) I OUT A Power Dissipation (T C =0 C) HZIP-A / HZIP-B P D HZIP-D 0 W Junction Temperature T J +5 C Operating Junction Temperature T J 0 ~ +0 C Storage Temperature T STG -0 ~ +0 C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. THERMAL DATA Junction to Case PARAMETER SYMBOL RATINGS UNIT HZIP-A / HZIP-B. θ JC C /W HZIP-D.5 ELECTRICAL CHARACTERISTICS(V CC =V, R L =Ω, f=khz, Ta=5 C, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Supply Range V CC V Output Offset Voltage V O(OFF ) 0 mv Total Output Noise Voltage en A curve, f=0hz ~ 0kHz 0 μv Total Quiescent Current I Q 5 ma Input Resistance R IN 5 0 kω Output Power P OUT THD=%. W Total Harmonic Distortion THD P OUT =W 0.05 0. % P OUT =0.~W, f=0hz~khz % Crosstalk C T 0 db Closed Loop Voltage Gain Gv 5 db Voltage Gain Matching Gv 0.5 db Supply Voltage Rejection SVR f=0hz, V R =0.5V 0 5 db Thermal Threshold Tt 0 C FUNCTION Mute Threshold VM THD for V CC >.V, V OUT = -0dB... V for V CC <.V, V OUT = -0dB V CC /-.0 V CC /-0.5 V CC /-0.5 V Mute Attenuation A 0 0 db STAND BY FUNCTION STAND-BY Threshold VT ST-BY 0... V STAND-BY Current V=GND I ST-BY 0 μa UNISONIC TECHNOLOGIES CO., LTD of
APPLICATION SUGGESTION For Microprocessor Application In order to avoid annoying Pop-Noise during Turn-On/Off transients, it is necessary to guarantee the right ST-BY and signals sequence. It is quite simple to obtain this function using a microprocessor (Fig and Fig ). At first ST-BY signal (from mp) goes high and the voltage across the ST-BY terminal (Pin ) starts to increase exponentially. The external RC network is intended to turn-on slowly the biasing circuits of the amplifier, this to avoid POP and CLICK on the outputs. When this voltage reaches the ST-BY threshold level, the amplifier is switched-on and the external capacitors in series to the input terminals (C, C5) start to charge. It s necessary to maintain the mute signal low until the capacitors are fully charged, this to avoid that the device goes in play mode causing a loud Pop Noise on the speakers. A delay of 0 ~ 00ms between ST-BY and signals is suitable for a proper operation. IN ST-BY C 0.µF R k C µf C5 0µF OUT+ C 0nF µp IN C 0.µF R k C µf OUT- OUT+ OUT- Fig. Microprocessor Application UNISONIC TECHNOLOGIES CO., LTD 5 of
APPLICATION SUGGESTION(Cont.) +(V) + VIN (mv) VST-BY Pin.. 0. V Pin... IQ (ma) VOUT (V) OFF ST-BY PLAY ST-BY OFF Fig Microprocessor Driving Signals UNISONIC TECHNOLOGIES CO., LTD of
APPLICATION SUGGESTION(Cont.) For Low Cost Application In low cost applications where the mp is not present, the suggested circuit is shown in Fig. The ST-BY and mute terminals are tied together and they are connected to the supply line via an external voltage divider. The device is switched-on/off from the supply line and the external capacitor C is intended to delay the ST-BY and threshold exceeding, avoiding Popping problems. R k R k C µf IN IN C 0.µF C5 0.µF ST-BY C 0µF OUT+ OUT- OUT+ C 0nF OUT- Fig Stand Alone Low Cost Application UNISONIC TECHNOLOGIES CO., LTD of
TYPICAL CHARACTERISTICS Level (dbr) 5.0000.0000.0000.0000.0000 0.0 -.000 -.000 -.000 -.000 =V RI=O POUT=W Gain vs Frequency IQ (ma) 0 5 0 55 50 5 0 5 Quiescent Current vs Supply Voltage -5.000 0 k Frequency (Hz) k 0k 0 5 Vsupply (V) 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 of