BD3884FS-E2

1/4 Structure Silicone monolithic integrated circuit Product name Audio sound processor for TV Model Name BD3884FS ●Features 1. Built-in AGC circuit adjusting the sound difference among input sources 2. I2C BUS control with the control voltage of 3.3V-5.0V 3. Use the Bi-CMOS process ●Absolute Maximum Ratings (Ta=25°C) Parameter Symbol Limits Unit Applied Voltage VCC 10.0 V Input Voltage VIN VCC+0.3～GND-0.3 V Power Dissipation Pd 1000 *1 mW Operating Temperature Topr -40～+85 *2 °C Storage Temperature Tastg -55～+150 °C *1 At Ta＝25°C or higher, this value is decreaced to 8.0mW/°C. When Rohm standard board is mounted. Thermal resistance ja = 125 (°C/W). Rohm standard board: size: 70×70×1.6 (mm3) material: FR4 glass-epoxy substrate (copper foil area: not more than 3%). *2 As long as voltage stays within operating voltage range, certain circuit operation is guaranteed in the operating temperature range. Allowable loss conditions are related to temperature, to which care must be taken. In addition though the standard value of its electrical characteristics cannot be guaranteed under the conditions other than those specified, original functions are maintained. ●Operating Voltage Range Parameter Symbol Min. Typ. Max. Unit Power supply voltage *3 VCC 7.0 9.0 9.5 V Basic operation shall be available at Ta=25°C. *3 As long as temperature components must be set in accordance with the operating voltage and temperature ranges before using this IC. In addition, though the standard value of its electrical characteristics cannot be guaranteed under the conditions other than those specified, original functions are maintained. REV. C 2/4 ●Function Specifications Function AGC Front volume Surround Bass Treble 4 step level variable 0dB to –87dB (1dB step), -∞dB Stereo Surround 14dB (2dB step) 14dB (2dB step) Rear volume 0dB ～-20dB (2dB step), -25dB, -30dB, （With the independent control） -45dB, -60dB, MUTE ●Electrical characteristics Unless specified: Ta=25C, VCC=9V, f=1kHz, VIN=1Vrms, Rg=600Ω, RL=10kΩ, Front Volume 0dB, Rear Volume =0dB, Bass=0dB, Treble=0dB, AGC=OFF, SURROUND=OFF. Limits Parameter Symbol Unit Min. Typ. Max. Conditions Current upon no signal IQ － 8 20 mA Maximum input voltage VIM1 2.6 2.8 － Vrms Maximum output voltage VOM1 2.2 2.5 － Vrms Voltage gain GV1 -2 0 2 dB GV=20log(Vout/Vin) Channel balance CB -1.5 0 1.5 dB CB = GV1-GV2 Total harmonic distortion THD1 － 0.008 0.1 ％ Vout=500mVrms BPF=400-30KHz Output noise voltage VNO1 － 6 18 Vrms Residual noise voltage VMNO1 － 1.5 10 Vrms Cross talk 1ch→2ch CT12 70 80 － dB REV. C Vin=0Vrms Front Volume = -6dB THD(Vout)=1％ BPF=400-30KHz THD=1％ BPF=400-30KHz BPF = IHF-A, Rg=0Ω Front Volume = -87dB Rear Volume = -∞dB BPF = IHF-A, Rg=0Ω CT = 20log(Vin/Vout) BPF = IHF-A 3/4 ●Dimensional outline drawing BD3884FS LOT No. SSOP-A24 (Unit : mm) ●Block diagram 24 23 BNF1 22 BOUT1 21 BNF2 BASS CH1 20 BOUT2 OUT1 19 18 OUT2 LINE1 17 16 LINE2 GND 15 14 SDA BASS CH2 13 SCL CAP2 IIC BUS Logic Bass -14～14dB 2dB step 0dB 0dB Rear Vol 0～-20dB 2dB step -25, -30, -45, -60, -∞dB With soft switch SURROUND (Fixed Effect Amount) Treble -14～14dB 2dB step AGC VCC (4 Level variable) TREBLE CH1 TREBLE CH2 Front Vol 0～-87dB 1dB step 50k VCC/2 89k 89k 50k TNF1 1 TNF2 2 VIN2 3 SEL2 4 VIN1 5 SEL1 6 LS 7 REV. C CAP1 8 FIL 9 VCC 10 11k IN1 11 11k IN2 12 4/4 ●Cautions on use (1) Numbers and data in entries are representative design values and are not guaranteed values of the items. (2) Although we are confident in recommending the sample application circuits, carefully check their characteristics further when using them. When modifying externally attached component constants before use, determine them so that they have sufficient margins by taking into account variations in externally attached components and the Rohm LSI, not only for static characteristics but also including transient characteristics. (3) Absolute maximum ratings If applied voltage, operating temperature range, or other absolute maximum ratings are exceeded, the LSI may be damaged. Do not apply voltages or temperatures that exceed the absolute maximum ratings. If you think of a case in which absolute maximum ratings are exceeded, enforce fuses or other physical safety measures and investigate how not to apply the conditions under which absolute maximum ratings are exceeded to the LSI. (4) GND potential Make the GND pin voltage such that it is the lowest voltage even when operating below it. Actually confirm that the voltage of each pin does not become a lower voltage than the GND pin, including transient phenomena. (5) Thermal design Perform thermal design in which there are adequate margins by taking into account the allowable power dissipation in actual states of use. (6) Shorts between pins and misinstallation When mounting the LSI on a board, pay adequate attention to orientation and placement discrepancies of the LSI. If it is misinstalled and the power is turned on, the LSI may be damaged. It also may be damaged if it is shorted by a foreign substance coming between pins of the LSI or between a pin and a power supply or a pin and a GND. (7) Operation in strong magnetic fields Adequately evaluate use in a strong magnetic field, since there is a possibility of malfunction. REV. C Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. 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