Sound Processors for Home Theater Systems 6ch Electronic Volume BD3814FV No.10081EAT05 ●Description BD3814FV is a 1-chip sound processor incorporating such functions as volume, bass, and treble, necessary for AV receivers, home theater systems, and mini-audio systems. This IC adopts the Bi-CMOS process, and realizes low distortion, low noise, and a wide dynamic range. ●Features 1) Dynamic range: 132dB (tone bypath, VOL = MUTE, IHF-A) 2) Master volume 6ch independent (0 to -95dB, MUTE 1dB/step) 3) Low current consumption design achieved by adopting the BiCMOS process 4) Maximum output voltage: 4.3Vrms (Vcc=7V, VEE=-7V, RL=10kΩ) 5) Built-in 2 OP amplifiers 6) 2-line serial control (for both 3.3V and 5V) ●Applications AV receivers, home theater systems, mini-audio systems, TVs etc. ●Absolute maximum ratings (Ta=25℃) Parameter Power supply voltage Symbol Ratings Unit 7.5*1 VCC V VEE -7.5 Input signal voltage VIN VCC+0.3 to VEE-0.3 V Power dissipation Pd 900*2 mW Operating temperature range Topr -20 to +75 ℃ Storage temperature range Tastg -55 to +125 ℃ *1 Even in the specified range of Power Supply Voltage, applying voltage only to the VCC side may cause an excessive current to give a permanent damage to the IC. When starting up power supplies, VEE and VCC should be powered on simultaneously or VEE first; then followed by VCC. *2 Reduced by 9 mW/C over 25C, when installed on the standard board (size: 70x70x1.6mm). ●Operating conditions Must function normally at Ta=25℃. Parameter Operating source voltage www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Symbol Ratings Min. Typ. Max. VCC 5 7 7.3 VEE -7.3 -7 -5 1/10 Unit V 2010.06 - Rev.A Technical Note BD3814FV ●Electrical characteristics Ta=25℃, VCC=7V, VEE=-7V, f=1kHz, Vin=1Vrms, RL=10kΩ, Rg=600Ω, Master volume=0dB, Bass and Treble=0dB unless otherwise noted. Limits Parameter Symbol Unit. Conditions Min. Typ. Max. Total output Circuit current VCC VEE IQ ― 7 17 -17 -7 ― mA No signal L input current(CL,DA) IIL ― 0.5 5 µA CL=DA=0V H input current(CL,DA) IIH ― 0 5 µA CL=DA=5V Output voltage gain 1 Gv1 -2 0 2 dB Measure: Pin27,28,29,30, 31,32 Output voltage gain 2 Gv2 -2 0 2 dB Measure: Pin3, 7 Total harmonic distortion ratio 1 THD1 ― 0.001 0.03 % Measure: Pin27,28,29,30,31,32 BW=400 ~ 30kHz Total harmonic distortion ratio 2 THD2 ― 0.001 0.03 % Measure: Pin3, 7 BW=400 ~ 30KHz Maximum output voltage 1 Vomax1 3.6 4.3 ― Vrms Measure: Pin27,28,29,30,31,32 THD=1% Maximum output voltage 2 Vomax2 3.6 4.3 ― Vrms Measure: Pin 3,7 THD=1% ― 1.0 6.0 µVrms ― 1.7 10 µVrms Vno2 ― 1.0 6.0 µVrms Cross talk between channels Rch→Lch CTCRL ― -95 -80 dB Measure: Pin27(OUTFL) Rg=0Ω, BW=IHF-A Reference: Pin28(OUTFR)=1Vrms Cross talk between channels Lch→Rch CTCLR ― -95 -80 dB Measure: Pin28(OUTFR) Rg=0Ω, BW=IHF-A Reference: Pin27(OUTFL)=1Vrms Cross talk between channels SRch→SLch CTCSRL ― -95 -80 dB Measure: Pin 30(OUTSL) Rg=0Ω, BW=IHF-A Reference: Pin31(OUTSR)=1Vrms Cross talk between channels SLch→SRch CTCSLR ― -95 -80 dB Measure: Pin 31(OUTSR) Rg=0Ω, BW=IHF-A Reference: Pin30(OUTSL)=1Vrms Cross talk between channels Cch→SWch CTCCSW ― -95 -80 dB Measure: Pin 32(OUTSW) Rg=0Ω, BW=IHF-A Reference: Pin29(OUTC) =1Vrms Output noise voltage 1 Output noise voltage 2 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Vno1 2/10 Measure: Pin 27, 28 Tone: By-pass, Rg=0Ω, BW=IHF-A Measure: Pin 27, 28 Tone: ON, Rg=0Ω, BW=IHF-A Measure: Pin3, 7, 29, 30, 31, 32 Rg=0Ω, BW=IHF-A 2010.06 - Rev.A Technical Note BD3814FV Symbol Limits Min. Typ. Max. Unit. Conditions Input impedance V RinV 14 20 26 kΩ Measure: Pin27,28,29,30,31,32 Volume control range GVR -98 -95 -92 dB Measure: Pin27,28,29,30,31,32 Vin=3Vrms Volume set error 1 VE1 -1.5 0 1.5 dB Measure: Pin27,28,29,30, 31,32 0 to –53dB, Vin=3Vrms Volume set error 2 VE2 -2.5 0 2.5 dB Measure: Pin27,28,29,30,31,32 -54 to –95dB, Vin =3Vrms Maximum attenuation amount Vmin ― -115 -105 dB Measure: Pin27,28,29,30,31,32 Vin =3Vrms, BW=IHF-A Residual noise voltage 1 Vnom1 ― 1.0 6.0 µVrms Measure: Pin27, 28 Tone: By-Pass, Rg=0Ω, BW=IHF-A Residual noise voltage 2 Vnom2 ― 1.0 6.0 µVrms Measure: Pin29, 30, 31, 32 Rg=0Ω, BW=IHF-A Cross talk between channels SWch→Cch CTCSWC ― -95 -80 dB Measure: Pin 29(OUTC) Rg=0Ω, BW=IHF-A Reference: Pin32(OUTSW)=1Vrms Treble maximum boost gain GTB 12 14 16 dB Measure: Pin 27, 28 f=15kHz, Vin =0.4Vrms Treble maximum cut gain GTC -16 -14 -12 dB Measure: Pin 27, 28 f=15kHz, Vin =0.4Vrms Treble step resolution TR ― 2 ― dB Measure: Pin 27, 28 f=15kHz, Vin =0.4Vrms Treble gain set error TE -2 0 2 dB Measure: Pin 27, 28 f=15kHz, Vin =0.4Vrms Bass maximum boost gain GBB 12 14 16 dB Measure: Pin 27, 28 f=100Hz, Vin=0.4Vrms Bass maximum cut gain GBC -16 -14 -12 dB Measure: Pin 27, 28 f=100Hz, Vin =0.4Vrms Bass step resolution BR ― 2 ― dB Measure: Pin 27, 28 f=100Hz, Vin =0.4Vrms Bass gain set error BE -2 0 2 dB Measure: Pin 27, 28 f=100Hz, Vin =0.4Vrms Bass Treble Volume output Parameter * Note: This IC is not designed to be radiation-resistant. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 3/10 2010.06 - Rev.A Technical Note BD3814FV ●Timing chart 1. Signal timing conditions ・Data is read on the rising edge of the clock. ・Latch is read on the falling edge of the clock. ・Latch signal must terminate with the LOW state. * To avoid malfunctions, clock and data signals must terminate with the LOW state. 90% CL (CLOCK) 90% twc 10% thd DA DATA LATCH 90% twd ts 90% DATA 90% 90% 10% 10% twc th tsd tsl DATA 10% thl 90% 90% twh 10% thd 10% twl LATCH Terminate with Low. Fig.1 Parameter Symbol 90% Limits Min. Typ. Max. Unit Minimum clock width twc 2.0 － － μs Minimum data width twd 2.0 － － μs Minimum latch width twl 2.0 － － μs LOW hold width twh 2.0 － － μs Data setup time (DATA→CLK) tsd 1.0 － － μs Data hold time (CLK→DATA) thd 1.0 － － μs Latch setup time (CLK→LATCH) tsl 1.0 － － μs Latch hold time (DATA→LATCH) thl 1.0 － － μs Latch low setup time ts 1.0 － － μs Latch low hold time th 1.0 － － μs 2. Voltage conditions for control signal Parameter “H” input voltage “L” input voltage www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Condition Limits Unit Min. Typ. Max.(≦Vcc) 2.2 － 5.5 V 0 － 1.0 V Vcc=5 ~ 7.3V VEE=-5 ~ -7.3V 4/10 2010.06 - Rev.A Technical Note BD3814FV 3. Basic configuration of control data format Data input direction MSB D16 D15 D14 D13 D12 LSB D11 D10 Data D9 D8 D7 D6 D5 D4 D3 Data Data ② Data ③ Data ④ D16 D15 D14 D15 D13 D12 D11 D10 D9 Bass D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Tone * * * * * 0 0 0 D8 D7 D6 D5 D4 D3 D2 D1 D0 0 0 1 D2 D1 D0 0 1 0 D2 D1 D0 0 1 1 Master Volume FRch D16 D15 D14 D13 D12 Master Volume FLch D11 D10 D9 D8 Master Volume SRch D16 D15 D14 D0 Select Address Treble D16 D1 Select Address ・Control data format Data input direction Data ① D2 D13 D12 D7 D6 D5 D4 D3 Master Volume SLch D11 D10 D9 D8 Master Volume Cch D7 D6 D5 Master Volume SWch D4 D3 By changing select address, 4 control data formats can be selected. Do not set the select address data to any format other than that specified above. At power-on sequence, initialize all data. * is 0 or 1. Example: Data input direction MSB LSB MSB LSB Data① L Data② MSB L LSB Data③ MSB L LSB Data④ L “L” shows latch. After power-on, for the second and subsequent times, only the necessary data can be selected for setting Example: When to change bus, Input direction MSB LSB Data① L “L” shows latch. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 5/10 2010.06 - Rev.A Technical Note BD3814FV ●Application circuit 1 40 2 39 3 38 47K Vcc 47µ MASTER 10K VOLUME 4 CL 37 0～-95dB 10K 1dB/step，MUTE 5 36 6 35 DA 47K 10K MUTE Ri=20K 7 34 8 33 Ri=20K IN SW 32 OUTSW 31 OUTSR 11 30 OUTSL 12 29 OUTC 28 OUTFR 14 27 OUTFL 15 26 9 10 µ 10 Ri=20K IN SR 10µ IN SL 13 IN C Ri=20K 10 µ 25 16 BASS Ri=20K IN FR 17 24 18 23 10µ 4.7K 0.1µ 0.1µ 4.7K 0.1µ Ri=20K IN FL 0.1µ 10 µ 19 TREBLE 10µ 4700P 21 20 VEE 22 4700P 47µ UNIT RESISTOR: Ω CAPACITOR: F Fig.2 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 6/10 2010.06 - Rev.A Technical Note BD3814FV ●Reference data 10 VCC 10 OUTPUT VOLTAGE (Vrms) 8 6 6 4 4 GAIN (dB) 2 0 VEE -2 -4 2 0 -2 -4 -6 -6 -8 -8 -10 0 5 Fig.3 Circuit current - Power supply 1000 10000 GAIN (dB) 1 0.1 0.01 0.001 1 10 Fig.6 THD+N - Input voltage www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1 10 Fig.5 Output voltage - Input voltage +14dB 15 10 10 5 5 0 -14～+14dB -5 -14dB 2dB/step 0 -5 -14～+14dB -10 2dB/step -15 -20 INPUT VOLTAGE (Vrms) 0.1 20 -15 0.0001 0.01 INPUT VOLTAGE (Vrms) +14dB -10 0.001 0.1 0.01 100000 20 15 THD+N (%) 100 Fig.4 Voltage gain - Frequency 10 0.01 0.1 FREQUENCY (Hz) POWER SUPPLY (V) 0.001 1 0.001 10 10 GAIN (dB) CIRCUIT CURRENT (mA) 8 10 100 1000 10000 100000 FREQUENCY (Hz) Fig.7 Bass gain - Frequency 7/10 -14dB -20 10 100 1000 10000 100000 FREQUENCY (Hz) Fig.8 Treble gain - Frequency 2010.06 - Rev.A Technical Note BD3814FV ●Notes for use 1. Numbers and data in entries are representative design values and are not guaranteed values of the items. 2. Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits may cause variations in both static and transient characteristics for external components as well as this Rohm IC. Allow for sufficient margins when determining circuit constants. 3. Absolute maximum ratings Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr), may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at times where the absolute maximum ratings may be exceeded. 4. VEE potential Make the VEE 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 VEE pin, including transient phenomena. 5. Thermal design Perform thermal design, in which there are adequate margins, by taking into account the power dissipation (Pd) in actual states of use. 6. Short circuit between terminals and erroneous mounting Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other components on the circuits, can damage the IC. 7. Operation in strong electromagnetic field Using the ICs in a strong electromagnetic field can cause operation malfunction. 8. Serial control For the CL and DA terminals, the patterned and other wirings should be routed as not to cause interference with the analog-signal-related lines. 9. Power ON/OFF (a) At power ON/OFF, a shock sound will be generated. Therefore, use MUTE on the set. (b) When turning on power supplies, VEE and VCC should be powered on simultaneously, or VEE first followed by VCC. If the VCC side is started up first, an excessive current may flow from VCC to VEE. 10. Tone bypath switching For tone bypath switching, use MUTE on the set. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 8/10 2010.06 - Rev.A Technical Note BD3814FV ●Thermal derating characteristic 1000 900mW Power Dissipation Pd （mW) 800 600 400 200 0 0 25 50 75 100 125 Ta( ℃) Fig.9 BD3814FV ROHM standard board packaging time value Board size: 70 x 70 x 1.6mm Raw material : FR4 glass epoxy board (copper area 3% or below) www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 9/10 2010.06 - Rev.A Technical Note BD3814FV ●Ordering part number B D 3 Part No. 8 1 4 F Part No. V - Package FV: SSOP-B40 E 2 Packaging and forming specification E2: Embossed tape and reel SSOP-B40 <Tape and Reel information> 13.6 ± 0.2 (MAX 13.95 include BURR) 0.5 ± 0.2 1 2000pcs Direction of feed E2 The direction is the 1pin of product is at the upper left when you hold ( reel on the left hand and you pull out the tape on the right hand ) 20 0.15 ± 0.1 0.1 1.8 ± 0.1 Embossed carrier tape Quantity 21 5.4 ± 0.2 7.8 ± 0.3 40 Tape 0.1 S 0.65 0.22 ± 0.1 0.08 M 1pin (Unit : mm) www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Reel 10/10 Direction of feed ∗ Order quantity needs to be multiple of the minimum quantity. 2010.06 - Rev.A 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 © 2010 ROHM Co., Ltd. All rights reserved. R1010A