BD3881FV

1/4 Structure : Product : Type : Silicon Monolithic Integrated Circuit Audio sound controller BD3881FV １．Dual built-in recording and playing preamplifiers for cassette tapes Less external components allows a compact size of the set. ２．The shock sound at power-ON/OFF is absorbed by both power sources. The reference voltage of signal systems is designed to be a ground level so that low offset voltage and low noise are achieved. Feature : Absolute Maximum Ratings (Ta=25℃) Parameter Symbol Limits VDD 5 Power Supply Voltage VEE -5 Pd 850※ Power Dissipation Operating Temperature Topr －20～＋75 Storage Temperature Tastg －55～＋125 ※Over Ta＝25C, derating at the rate of 8.5mW/C. When installed on the standard board (Size: 70×70×1.6mm). Operating Voltage Range Unit Symbol Limit VDD 3.5～4.75 V VEE -4.75～-3.5 V (It must function normally at Ta = 25℃) Unit V mW ℃ ℃ Application example Note that ROHM cannot provide adequate confirmation of patents. The product described in this specification is designed to be used with ordinary electronic equipment or devices (such as audio-visual equipment, office-automation equipment, communications devices, electrical appliances, and electronic toys). Should you intend to use this product with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. REV. C 2/4 Electrical characteristics (Ta = 25C, VDD = 4.5V, VEE = -4.5V, f = 1kHz, Vin = 50mVrms, Rg = 600, RL = 10kΩ, Input Selector = Ach, Volume=0dB, Bass=0dB, Treble=0dB, unless otherwise noted.) Limit Parameter Symbol Unit Conditions Min. -8.0 0.6 Typ. 3.0 -3.0 0.8 Max. 8.0 VDD Circuit Current VEE Circuit Current Ach Maximum Input Voltage Bch Maximum Input Voltage Cch Maximum Input Voltage Maximum Input Voltage TP GENERAL Maximum Output Voltage Voltage Gain Channel Balance Total Harmonic Distortion Ratio Output Noise Voltage ＊ IQVDD IQVEE Vaim Vbim Vcim Vimtp Vom Gv CB THD Vno 0.6 2.2 26 -1.5 0.8 2.5 28 0 0.02 12 30 1.5 0.1 20 Vrms Vrms dB dB ％ μVrms Vrms THD(Vout) =1%, BPF = 400～30kHz Volume = -24dB THD(Vout)=1%, BPF = 400～30kHz GAIN = 10dB Input Selector = TP THD = 1%, BPF = 400～30kHz Gv = 20log(Vout/Vin) CB = Gv1-Gv2 BPF = 400-30KHz Volume = 0dB～-84dB BPF = IHF-A, Rg=0Ω Input Point = Pin7, Pin8 Volume = 0dB～-84dB BPF = IHF-A, Rg=0Ω Input Point = Pin7, Pin8 CT = 20log(Vin/Vout) BPF = IHF-A, Rg = 0Ω mA Vin = 0Vrms Residual Noise Voltage ＊ Cross-talk between Channels * Voltage Gain A Voltage Gain B Voltage Gain C Cross-talk between Selectors A1ch→B1ch * Vmno CT Gva Gvb Gvc CTab1 CTab2 CTbc1 CTbc2 CTca1 CTca2 Rsout Gvrc Vomrc Vnorc Vtr Gvtp Vomtp Vnotp Vimv Rvin Vr Sv1 Sv2 Ev1 Ev2 ATTm 70 12 85 20 - μVrms dB 8 10 12 dB INPUT Cross-talk between Selectors A2ch→B2ch * Cross-talk between Selectors B1ch→C1ch * Cross-talk between Selectors B2ch→C2ch * Cross-talk between Selectors C1ch→A1ch * Cross-talk between Selectors C2ch→A2ch * － -110 -70 dB Rg = 0Ω, BPF = IHF-A Vin=500mVrms Output Impedance RECODING EQ Voltage Gain RC Maximum Output Voltage RC Input Conversion Noise Voltage RC Slew Rate RC Voltage Gain TP Maximum Output Voltage TP Input Conversion Noise Voltage TP Volume Maximum Input Voltage Volume Input Impedance Volume Volume Volume Volume Volume Control Range Control Step 1 Control Step 2 Setting Error 1 Setting Error 2 VOLUME － 38 2.2 2 44 2.2 2.2 14 -87 -2 -3 － － 40 2.5 1.5 4 46 2.5 1.1 2.5 20 -84 2 4 0 0 -118 50 42 3.0 48 2.0 ― 26 -81 2 3 -90 Ω dB Vrms μVrms V/μS dB Vrms μVrms Vrms kΩ dB dB dB dB dB dB BPF = IHF-A 0dB to –36dB -36dB to –84dB 0dB to –72dB -76dB to –84dB Volume=-∞, BPF=IHF-A, Vin=3Vrms, ATT=20log(Vout/Vin)-18dB f=10kHz Input Selector = TP THD=1%, BPF=400～30kHz Input Selector = TP Rg=2.2kΩ, BPF=IHF-A, Gv=20dB THD(Vout)=1%, BPF=400～30kHz Volume ATT=-24dB f=10kHz THD=1%, BPF=400～30kHz Rg = 0Ω, BPF = IHF-A PLAY BACK EQ Volume Maximum Attenuation * REV. C 3/4 Parameter Bass Boost Control Range BASS Bass Control Step Bass Setting Error (0dB～12dB) Bass Setting Error (15dB～21dB) TREBLE Treble Boost Control Range Treble Control Step Treble Setting Error Symbol Gbbr SBC EBS1 EBS2 Gｔbr STC ETS Min. +18 -2 -3 +12 -2 Limit Typ. +21 3 0 0 +14 2 0 Max. +24 2 3 +16 2 Unit dB dB dB dB dB dB dB Conditions f = 70Hz, Vin = 5mVrms BASS = +21dB f = 70Hz, Vin = 5mVrms f = 10kHz, Vin = 5mVrms TREBLE = +14dB (fc=300Hz) f = 10kHz Vin = 5mVrms ※ The operational amplifier for PB should be used with the gain of 10dB or above. ※ For measurement, VP-9690A (Average value wave detection, Effective value display) IHF-A filter by Matsushita Communication Industrial is used. ※ Phase relation between Input/Output signal terminals is Equiphase. ※ Not designed for radiation resistance. Outline dimension・Marking dimension BD3881FV Lot. No. SSOP-B28 (Unit：mm) Block Diagram 28 27 26 25 24 23 INC1 22 INB2 21 INB1 20 INA2 19 INA1 18 OUT1 17 BAS1 16 15 REC1O REC1N REC2N REC2O INC2 OUT2 BAS2 BASS BASS 20k 9.3k 18dB VOLUME TREBLE Logic Control 18dB 20k 9.3k VOLUME TREBLE PB１N PB1P PB2P PB2N PB2O PB1O VOLIN1 VOLIN2 GND TRE1 TRE2 VDD CONT VEE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Unit: Resistance = Ω REV. C 4/4 Pin number・Pin name Pin number Pin name Pin number Pin name Pin number Pin name Pin number Pin name Pin number Pin name 1 2 3 4 5 6 PB1N PB1P PB2P PB2N PB2O PB1O 7 8 9 10 11 12 VOLIN1 VOLIN2 GND TRE1 TRE2 VDD 13 14 15 16 17 18 CONT VEE BAS2 OUT2 BAS1 OUT1 19 20 21 22 23 24 INA1 INA2 INB1 INB2 INC1 INC2 25 26 27 28 REC2O REC2N REC1N REC1O Cautions on use 1．About operating voltage range and operating temperature range Within the Operating Voltage Range and the Operating Temperature Range, while basic circuit functional operations are supposed to be guaranteed, the standard values of the electrical characteristics are guaranteed only when used under the specific conditions defined within these ranges. Thus, the users must verify those conditions before setting constants, elements, voltages, and temperatures. Note that the conditions of power dissipation are also affected with temperatures. 2．About power on reset A built-in circuit for performing initialization inside the IC at power-ON is provided. In the case of the set design, however, to be on the safe side, it is recommended that data shall be sent to all the addresses as initial data at power-ON and, until this sending operation is completed, the mute shall be applied. Function Input Selector REC Output Karaoke Volume Treble Gain Bass Gain Initial Condition MUTE REC MUTE Stereo -dB 0dB 0dB 3．About 1-wire serial control As the CONT terminal is designed for inputting a high-frequency digital signal, the wiring and layout patterns should be routed not to cause interference with the analog-signal-related lines. 4．About power ON/OFF Shock sound absorbing measures at power ON/OFF are implemented on 5pin, 6pin, 16pin, 18pin, 25pin, and 28pin. When booting up power supplies, the VEE side should be booted a little bit earlier than the other side. If the VDD side is booted up first, an excessive current may pass VDD through VEE. When booting off the power supply, the VDD side should be booted off a little bit earlier than the other side. Note that, at this time, voltage change passing through the GND level may produce an abnormally large current. 5．About function switching On switching between the Volume, Bass, Treble, and REC Mute functions, the action has been taken to absorb such switching shock sound. For the other function switching operations, a combined use of MUTE is recommendable. As measures against the switching shock sound of Karaoke, the bias resistances on 19pin through 24pin should be set to 10k or less. 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. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. R1120A