BD3814FV

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 Input signal voltage Power dissipation Operating temperature range Storage temperature range Symbol VCC VEE VIN Pd Topr Tastg Ratings 7.5*1 -7.5 VCC+0.3 to VEE-0.3 900*2 -20 to +75 -55 to +125 Unit V V mW ℃ ℃ *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 25C, when installed on the standard board (size: 70x70x1.6mm). ●Operating conditions Must function normally at Ta=25℃. Parameter Operating source voltage Symbol VCC VEE Ratings Min. 5 -7.3 Typ. 7 -7 Max. 7.3 -5 Unit V www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/10 2010.06 - Rev.A BD3814FV Technical Note ●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. Circuit current VCC VEE IQ ― -17 ― 7 -7 0.5 17 ― 5 mA No signal L input current(CL,DA) IIL 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 Total harmonic distortion ratio 1 Total harmonic distortion ratio 2 Maximum output voltage 1 Gv2 -2 0 2 dB Measure: Pin3, 7 Measure: Pin27,28,29,30,31,32 BW=400 ~ 30kHz Measure: Pin3, 7 BW=400 ~ 30KHz Measure: Pin27,28,29,30,31,32 THD=1% Measure: Pin 3,7 THD=1% 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 Measure: Pin27(OUTFL) Rg=0Ω, BW=IHF-A Reference: Pin28(OUTFR)=1Vrms Measure: Pin28(OUTFR) Rg=0Ω, BW=IHF-A Reference: Pin27(OUTFL)=1Vrms Measure: Pin 30(OUTSL) Rg=0Ω, BW=IHF-A Reference: Pin31(OUTSR)=1Vrms Measure: Pin 31(OUTSR) Rg=0Ω, BW=IHF-A Reference: Pin30(OUTSL)=1Vrms Measure: Pin 32(OUTSW) Rg=0Ω, BW=IHF-A Reference: Pin29(OUTC) =1Vrms THD1 ― 0.001 0.03 % THD2 ― 0.001 0.03 % Total output Vomax1 3.6 4.3 ― Vrms Maximum output voltage 2 Vomax2 3.6 ― 4.3 1.0 1.7 1.0 ― 6.0 10 6.0 Vrms µVrms µVrms µVrms Output noise voltage 1 Vno1 ― Output noise voltage 2 Cross talk between channels Rch→Lch Cross talk between channels Lch→Rch Cross talk between channels SRch→SLch Cross talk between channels SLch→SRch Cross talk between channels Cch→SWch Vno2 ― CTCRL ― -95 -80 dB CTCLR ― -95 -80 dB CTCSRL ― -95 -80 dB CTCSLR ― -95 -80 dB CTCCSW ― -95 -80 dB www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 2/10 2010.06 - Rev.A BD3814FV Technical Note Parameter Input impedance V Symbol RinV Limits Min. 14 Typ. 20 Max. 26 Unit. kΩ Conditions Measure: Pin27,28,29,30,31,32 Measure: Pin27,28,29,30,31,32 Vin=3Vrms Measure: Pin27,28,29,30, 31,32 0 to –53dB, Vin=3Vrms Measure: Pin27,28,29,30,31,32 -54 to –95dB, Vin =3Vrms Measure: Pin27,28,29,30,31,32 Vin =3Vrms, BW=IHF-A Measure: Pin27, 28 Tone: By-Pass, Rg=0Ω, BW=IHF-A Measure: Pin29, 30, 31, 32 Rg=0Ω, BW=IHF-A Measure: Pin 29(OUTC) Rg=0Ω, BW=IHF-A Reference: Pin32(OUTSW)=1Vrms Measure: Pin 27, 28 f=15kHz, Vin =0.4Vrms Measure: Pin 27, 28 f=15kHz, Vin =0.4Vrms Measure: Pin 27, 28 f=15kHz, Vin =0.4Vrms Measure: Pin 27, 28 f=15kHz, Vin =0.4Vrms Measure: Pin 27, 28 f=100Hz, Vin=0.4Vrms Measure: Pin 27, 28 f=100Hz, Vin =0.4Vrms Measure: Pin 27, 28 f=100Hz, Vin =0.4Vrms Measure: Pin 27, 28 f=100Hz, Vin =0.4Vrms Volume control range GVR -98 -95 -92 dB Volume set error 1 Volume output VE1 -1.5 0 1.5 dB Volume set error 2 Maximum attenuation amount Residual noise voltage 1 VE2 -2.5 0 2.5 dB Vmin ― -115 -105 dB Vnom1 ― 1.0 6.0 µVrms Residual noise voltage 2 Cross talk between channels SWch→Cch Treble maximum boost gain Vnom2 ― 1.0 6.0 µVrms CTCSWC ― -95 -80 dB GTB 12 14 16 dB Treble Treble maximum cut gain GTC -16 -14 -12 dB Treble step resolution TR ― 2 ― dB Treble gain set error TE -2 0 2 dB Bass maximum boost gain GBB 12 14 16 dB Bass maximum cut gain Bass GBC -16 -14 -12 dB Bass step resolution BR ― 2 ― dB Bass gain set error BE -2 0 2 dB * 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 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. Technical Note CL (CLOCK) 90% 90% 90% 90% twc 10% twc 10% 10% thd DA DATA LATCH ts th tsd thd tsl thl 90% twd 90% twh 10% 10% 90% 90% twl 90% DATA DATA 10% LATCH Terminate with Low. Fig.1 Parameter Minimum clock width Minimum data width Minimum latch width LOW hold width Data setup time (DATA→CLK) Data hold time (CLK→DATA) Latch setup time (CLK→LATCH) Latch hold time (DATA→LATCH) Latch low setup time Latch low hold time Symbol twc twd twl twh tsd thd tsl thl ts th Limits Min. 2.0 2.0 2.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 Typ. － － － － － － － － － － Max. － － － － － － － － － － Unit μs μs μs μs μs μs μs μs μs μs 2. Voltage conditions for control signal Parameter “H” input voltage “L” input voltage Condition Vcc=5 ~ 7.3V VEE=-5 ~ -7.3V Limits Min. 2.2 0 Typ. － － Max.(≦Vcc) 5.5 1.0 Unit V V www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 4/10 2010.06 - Rev.A BD3814FV 3. Basic configuration of control data format Data input direction MSB D16 Data D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 Technical Note LSB D2 D1 D0 Data Select Address ・Control data format Data input direction Data ① Data ② Data ③ Data ④ D16 D15 D14 D13 D12 D11 D10 D9 D8 Tone D9 D8 D7 * D7 D6 * D6 D5 * D5 D4 * D4 D3 * D3 Select Address D2 0 D2 0 D4 D3 D2 0 D4 D3 D2 0 D1 0 D1 0 D1 1 D1 1 D0 0 D0 1 D0 0 D0 1 Treble D16 D15 D14 D13 D12 Bass D11 D10 Master Volume FRch D16 D15 D14 D13 D12 D11 D10 D9 D8 Master Volume FLch D7 D6 D5 Master Volume SRch D16 D15 D14 D13 D12 D11 D10 D9 D8 Master Volume SLch D7 D6 D5 Master Volume Cch Master Volume SWch 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 L MSB LSB L MSB LSB L Data③ Data④ “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” shows latch. L www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 5/10 2010.06 - Rev.A BD3814FV ●Application circuit Technical Note 1 47K 40 2 39 47µ Vcc 3 4 MASTER VOLUME 0～-95dB 1dB/step，MUTE 38 10K 37 10K CL 5 47K 36 10K DA 6 Ri=20K 35 MUTE 7 34 8 Ri=20K 33 IN SW 10 µ 9 32 31 Ri=20K OUTSW 10 IN SR 10µ OUTSR 11 30 OUTSL 12 IN SL 10 µ 29 Ri=20K OUTC 13 28 OUTFR 14 IN C 10 µ 27 26 OUTFL 15 0.1µ 4.7K 16 BASS IN FR 10µ Ri=20K 25 0.1µ 17 24 0.1µ 4.7K 18 IN FL VEE 47µ 10 µ Ri=20K 23 0.1µ 19 TREBLE 22 4700P 20 21 4700P UNIT RESISTOR: Ω CAPACITOR: F Fig.2 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 6/10 2010.06 - Rev.A BD3814FV ●Reference data 8 Technical Note VCC 10 10 CIRCUIT CURRENT (mA) 6 4 2 0 -2 -4 -6 -8 0 5 10 6 4 OUTPUT VOLTAGE (Vrms) 10 100 1000 10000 100000 8 1 GAIN (dB) 2 0 -2 -4 -6 -8 -10 0.1 VEE 0.01 0.001 0.001 0.01 0.1 1 10 POWER SUPPLY (V) FREQUENCY (Hz) INPUT VOLTAGE (Vrms) Fig.3 Circuit current - Power supply Fig.4 Voltage gain - Frequency Fig.5 Output voltage - Input voltage 10 20 15 +14dB 20 15 10 GAIN (dB) 5 0 -5 -10 -15 -14～+14dB 2dB/step +14dB 1 10 THD+N (%) 0.1 GAIN (dB) 5 0 0.01 -14～+14dB -5 -10 -15 -14dB 2dB/step 0.001 -14dB 0.0001 0.001 0.01 0.1 1 10 -20 10 100 1000 10000 100000 -20 10 100 1000 10000 100000 FREQUENCY (Hz) INPUT VOLTAGE (Vrms) FREQUENCY (Hz) Fig.6 THD+N - Input voltage Fig.7 Bass gain - Frequency Fig.8 Treble gain - Frequency www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 7/10 2010.06 - Rev.A BD3814FV ●Notes for use Technical Note 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 BD3814FV ●Thermal derating characteristic 1000 900mW Technical Note 800 Power Dissipation Pd （mW) 600 400 200 0 0 25 50 Ta( ℃) 75 100 125 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 BD3814FV ●Ordering part number Technical Note B D 3 Part No. 8 1 4 F V - E 2 Part No. Package FV: SSOP-B40 Packaging and forming specification E2: Embossed tape and reel SSOP-B40 13.6 ± 0.2 (MAX 13.95 include BURR) Tape Quantity 21 Embossed carrier tape 2000pcs E2 The direction is the 1pin of product is at the upper left when you hold 40 7.8 ± 0.3 5.4 ± 0.2 1 20 1.8 ± 0.1 0.15 ± 0.1 0.1 0.1 0.65 0.22 ± 0.1 0.08 M S 0.5 ± 0.2 Direction of feed ( reel on the left hand and you pull out the tape on the right hand ) 1pin (Unit : mm) Direction of feed Reel ∗ Order quantity needs to be multiple of the minimum quantity. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 10/10 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. 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