Datasheet 6ch Electronic Volume for 5.1ch Car Theater BD3433K General Description Key Specifications BD3433K is a 6ch electronic volume device for 5.1ch Car Theater. It incorporates various functions such as 6ch input selector (front/rear independently-controlled), input gain amp (front/rear independently-controlled), 6ch independently-controlled electronic volume (capable of soft switching), 6ch output gain amp (2-line outputs), differential input for monophonic signals, electronic volume for monophonic signals (capable of soft switching), and mixing circuit for monophonic signals. It also provides high performance functions to achieve low distortion, low noise and a high voltage output of 5.6Vrms. QFP44 package which offers savings in space and components is used to be suited for applications such as car audio and car navigation. VCC Power Supply Voltage Range: 7.0V to 9.5V VEE Power Supply Voltage Range: -9.5V to -7.0V Total Harmonic Distortion: 0.001%(Typ) Maximum Input Voltage: 4.25Vrms(Typ) Cross-talk Between Channels: 106dB(Typ) Output Noise Voltage: 2.5µVrms(Typ) Residual Output Noise Voltage: 2µVrms(Typ) VCO Oscillation Frequency: 400kHz(Typ) Operating Temperature Range: -40°C to +85°C Package W(Typ) x D(Typ) x H(Max) Features High output voltage of 5.6Vrms is achievable Provided with 2 lines of outputs to the built-in power amp and the pre-out. Reduces volume switching noise by installing the advanced 6ch independently-controlled electronic volume with soft switching. High performance capabilities such as low distortion rate (0.001%), low noise (3µVrms) Different signals from different sources can be outputted to the front and rear sections independently and this provides an option of rear-seat entertainment. Incorporates monophonic differential input circuit suited for inputting navigation voice and telephone speech. These monophonic voices can be mixed with the front output signals. Energy-saving design resulting in low current consumption, by utilizing the Bi-CMOS process. It has the advantage in quality over scaling down the power heat control of the internal regulators. 3-wire serial interface supported for both of 3.3V and 5V microcomputers. QFP44 14.00mm x 14.00mm x 2.25mm Applications For car audio equipment, car navigation equipment, and hybrid systems. ○Product structure：Silicon monolithic integrated circuit www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001 ○This product has no designed protection against radioactive rays 1/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Typical Application Circuit OUTBRL OUTBSW OUTBC OUTBFR OUTBFL OUTARR OUTARL OUTASW OUTAC 33 DGND 34 32 31 30 29 28 27 26 25 24 OUTAFR OUTBRR 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 23 22 OUTAFL 4.7µ SDA 35 21 SOUTRR SCK 36 20 SOUTRL 4.7µ 4.7µ 19 AGND6 (Schottky Di) CS 37 39k TEST 38 18 INBRR ADJ 39 17 INBRL VEE 40 16 AGND5 AGNDM 41 15 INBSW 1µ 1µ 47µ 0.1µ 47µ 1µ 0.1µ 14 INBC VCC 42 1µ 1µ 1µ 1µ 10 1µ 11 12 INBFR 1µ INBFL 9 AGND3 AGND2 8 INARR 7 INARL 6 INASW 5 INAC 4 INAFR 2 1µ 3 AGND1 INEX- 44 1 AGNDE 1µ INAFL 1µ 1µ 13 AGND4 INEX+ 43 1µ 23 OUTAFR 24 OUTAC 25 OUTASW 26 OUTARL 27 OUTARR 28 OUTBFL 30 OUTBC 31 OUTBSW 32OUTBRL 33 OUTBRR 29 OUTBFR TOP VIEW Pin Configuration DGND 34 22 OUTAFL SDA 35 21 SOUTRR SCK 36 CS 37 TEST 38 ADJ 39 VEE 40 20 SOUTRL 19 AGND6 18 INBRR 17 INBRL 16 AGND5 AGNDM41 41 VCC 42 15 INBSW 14 INBC 13 AGND4 12 INBFR INEX+ 43 INEX- 44 11 INBFL 10 AGND3 9 INARR 8 INARL 7 AGND2 2/21 6 INASW 5 INAC 4 AGND1 3 INAFR 2 INAFL 1 AGNDE www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Pin Descriptions Pin No 1 AGNDE - Signal series GND Pin No 23 OUTAFR O Signal output A for front R ch 2 INAFL I Signal input A for front L ch 24 OUTAC O Signal output A for center ch 3 INAFR I Signal input A for front R ch 25 OUTASW O Signal output A for subwoofer ch 4 AGND1 - Signal series GND 26 OUTARL O Signal output A for rear L ch 5 INAC I Signal input A for centre 27 OUTARR O Signal output A for rear R ch Pin Name I/O Function Pin Name I/O Function 6 INASW I Signal input A for subwoofer 28 OUTBFL O Signal output B for front L ch 7 AGND2 - Signal series GND 29 OUTBFR O Signal output B for front R ch 8 INARL I Signal input A for rear L ch 30 OUTBC O Signal output B for center ch 9 INARR I Signal input for A rear R ch 31 OUTBSW O Signal output B for subwoofer ch 10 AGND3 - Signal series GND 32 OUTBRL O Signal output B for rear L ch 11 INBFL I Signal input B for front L ch 33 OUTBRR O Signal output B for rear R ch 12 INBFR I Signal input B for front R ch 34 DGND - 13 AGND4 - Signal series GND 35 SDA I 14 INBC I Signal input B for center 36 SCK I 15 INBSW I Signal input B for subwoofer 37 CS I 16 AGND5 - Signal series GND 38 TEST O 17 INBRL I Signal input B for rear L ch 39 ADJ - 18 INBRR I Signal input B for rear R ch 40 VEE - Digital series ground Micro controller interface (serial data signal input) Micro controller interface (serial clock signal input) Micro controller interface (chip select signal input) Testing terminal VCC oscillating frequency adjustment Power (negative voltage) input 19 AGND6 - Signal series GND 41 AGNDM - Analog series GND 20 SOUTRL O Signal output for rear L ch 42 VCC - Power (positive voltage) input 21 SOUTRR O Signal output for rear R ch 43 INEX+ I Monaural source signal input 22 OUTAFL O Signal output A for front L ch 44 INEX- I Monaural source signal input www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 3/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Block Diagram INEX+ 13.5K Soft Switching 13.5K OUTAFL ＋ Volume － INEX13.5K INAFL OUTAFR Mixing on/off Front Input Seｌector 13.5K OUTAC Output Gain A (0,+2.5dB) + Volume 100k INAFR OUTASW 100k INAC 100k 100k INARL 100k OUTARL + Volume Front Input Gain (0,6,12dB) INASW OUTARR Volume INARR 100k OUTBFL Volume OUTBFR INBFL 100k INBFR Rear Input Gain (0,6,12dB) INBC 100k INBSW 100k OUTBC Output Gain B (0,-4.5dB) Volume 100k OUTBSW OUTBRL Volume INBRL 100k OUTBRR Rear Input Seｌector INBRR 100k Power Supply TEST CS SCK SDA DGND ADJ VCC 4/21 AGNDM VEE SOUTRL SOUTRR AGNDE AGND６ AGND５ AGND３ AGND４ AGND1 AGND２ www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 Digital Control VCO TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Absolute Maximum Ratings (Ta=25C) Parameter Symbol Rating Unit VCC-GND 10 VEE-GND -10 VLGC 5.5 Pd 0.85 W Operating Temperature Topr -40 to +85 °C Storage Temperature Tstg -55 to +125 °C Terminal Applied Voltage Power Dissipation Terminal (Note 1) (Note 1) V Control terminal (CS/SCK/SDA) (Note 1) (Note 2) (Note 1) Maximum applied voltage based on GND. (Note 2) Derate by 8.5mW/°C for Ta>25°C. Mounted on (Material: FR4 glass epoxy board (beaten-copper area <3%), size:70mm x 70mm x 1.6mm) Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. Recommended Operating Conditions (Ta=25°C) Parameter Power Supply Voltage Symbol Terminal Min Typ Max Unit VCC VCC-GND 7.0 9 9.5 V VEE VEE-GND -9.5 -9 -7.0 V Conditions (Note 1) (Note 1) When it is within operating temperature, basic circuit function is guaranteed within operating voltage. However, setting constant and element, voltage setting, and temperature setting are required when in operation. Other than the conditions stipulated within the range, the standard value of electrical characteristics could not be guaranteed, while original function is retained. Electrical Characteristics Abbreviations: “Giaj” : Setting value of Input gain adjustor “Vol.Ex” : Setting value of volume for monaural signal “Goajb” : Setting value of output gain adjustor B “Vol” : Setting value of volume (1ch to 6ch) “Goaja” : Setting value of output gain adjustor A “Mix” : ON/OFF setting for mixing switch. Measurement condition (Unless specified otherwise) : Ta=25°C, VCC=9V, VEE=-9V, VIN=1Vrms/1kHz, Load resistance=10kΩ, Load capacitance=10pF, Giaj=0dB, Vol=0dB, Goaja=0dB, Goajb=0dB, Vol.Ex=-∞dB, Mix=OFF 1. General Characteristics Parameter Min Typ Max ICC - 10 17 IEE -17 -9 - fVCO - 400 - kHz RRc 40 85 - dB RRe 30 70 - dB Reset Operation Voltage VRS - 3.4 - V Required Time for Power ON Reset tPOR 20 - - µsec Symbol Min Typ Max Unit VIH 2.3 - 5.5 V CS, SCK, SDA “L” Level Input Voltage VIL 0 - 1.0 V CS, SCK, SDA Input Clock Frequency fSCK - - 1.5 MHz Current Consumption VCO Oscillation Frequency Unit mA Ripple Rejection 2. Conditions Symbol Logic Circuit Parameter “H” Level Input Voltage www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 5/21 Ripple = 0.1Vrms/ 1kHz (Input terminal AC short) Ripple= 0.1Vrms/ 1kHz (Input terminal AC short) Initialize all register data by VCC＜VRS to VCC＞VRS Minimum required time to reach 3V after VCC voltage ON. Terminal SCK TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Electrical Characteristics – continued Volume Circuit Parameter Conditions Symbol Min Typ Max Unit Voltage Gain GV -1 0 +1 dB Bandwidth fW 100 - - kHz Slew Rate SR - 1.65 - V/µsec Maximum Input Voltage VIM 3.8 4.25 - Vrms THD+N = 1% , Vol = -10dB VOM1 3.8 4.25 - VOM2 5 5.6 - Vrms THD+N = 1% Vol = +10dB VOM3 2.2 2.5 - Input Impedance RIN_V 70k 100k 130k Ω Output Impedance Input Gain Setting Value Error ROUT - - 50 Ω EGI -1 0 +1 dB EV1 -1.0 0 +1.0 EV2 -1.5 0 +1.5 EV3 -2.0 0 +2.0 EV4 -3.0 0 +3.0 VMU - -108 -85 EGOA -1 0 +1 EGOB -1 0 +1 CB -1 0 +1 dB CTC 85 106 - dB VNO - 2.5 10 VNR - 2 10 THD - 0.001 0.05 tSS1 - 0.64 - tSS2 - 1.28 - tSS3 - 2.56 - tSS4 - 5.12 - Volume Setting Value Error Volume Maximum Attenuation Output Gain Setting Value Error Gain Balance Between Channels Cross-talk Between Channels Output Noise Voltage Residual Output Noise Voltage THD+N Soft Switching Transition Time dB 6/21 Output reference is Giaj=0dB Giaj=6dB, 12dB, VIN=0.1Vrms Vol=+23dB to +1dB, -1dB to -20dB (+23dB to +1dB at VIN=0.1Vrms) Vol=-21dB to -40dB Vol=-41dB to -60dB Vol=-61dB to -79dB dB dB www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 Goaja=+2.5dB Goajb=-4.5dB Vol=0dB Output standard Maximum Output Voltage Frequency, which drop -1dB towards 1kHz µVrms % Vol=-∞dB (mute) , Goaja= Goajb=0dB Output standard 3. BW=20Hz to 20kHz Goaja=+2.5dB Goajb=-4.5dB BW=20Hz to 20kHz (Input terminal AC short) BW=A-Weight Vol=0dB (Input terminal Vol=-∞dB AC short) BW=20Hz to 20kHz, VOUT=1Vrms 0.64 msec/dB msec /dB Soft switching : 1.28 msec/dB ON 2.56 msec/dB 5.12 msec/dB TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Electrical characteristics – continued Monaural Signal Circuit Common condition unless specified otherwise : Vol=-∞dB, Giaj=Goaja= Goajb=0dB, Vol.Ex=0dB, Mix=ON Parameter Symbol Min Typ Max Voltage Gain Maximum Input Voltage Input Impedance Volume Setting Value Error Volume Maximum Attenuation Output Noise Voltage Residual Noise Voltage THD+N Common-Mode Signal Rejection Ratio Soft Switching Transition Time Unit GVe -1.0 0 +1.0 dB VIMe 3.8 4.25 - Vrms RINe 19 27 35 kΩ Conditions Phase inversion between input and output THD+N=1%, Vol.Ex＝0dB Output standard 4. Vol.Ex=-10dB Vol=+15dB to +1dB, -1dB to -20dB, (+15dB +1dB at VIN=0.1Vrms) Vol=-21dB to -40dB EVe1 -1.0 0 +1.0 EVe2 -1.5 0 +1.5 EVe3 -2.0 0 +2.0 EVe4 -3.0 0 +3.0 VMUe - -108 -85 VNOe - 4.5 15 VNRe - 3.5 10 THDe - 0.002 0.05 % Vol=-61dB to -63dB Vol.Ex=-∞dB (mute) , BW=20Hz to 20kHz BW=A-Weight Vol.Ex = 0dB (Input terminal AC Vol.Ex = -∞dB short) BW=20Hz to 20kHz, VOUT=1Vrms CMRR 40 60 - dB BW=20Hz to 20kHz tSSE1 - 0.64 - tSSE2 - 1.28 - tSSE3 - 2.56 - tSSE4 - 5.12 - www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 7/21 dB dB µVrms Vol=-41dB to -60dB 0.64 msec/dB msec /dB Soft switching: ON 1.28 msec/dB 2.56 msec/dB 5.12 msec/dB TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Application Information 1. Control Signal Specification (1) Timing Chart tSSC tSCS tWHS CS tSDC tWHC tWLC SCK tHCD SDA D15 D14 D13 D0 D1 D12 MSB LSB Item Symbol Min Typ Max Unit Input Clock Frequency fSCK - - 1.5 MHz SCK “High” Interval Width tWHC 200 - - nsec * SCK “Low” Interval Width tWLC 200 - - nsec * CS “High” Interval Width tWHS 200 - - nsec * CS↓－SCK↓ (Condition of Starting Data Transmission) Set up Time tSSC 400 - - nsec * SCK↓－CS↓ (Condition of Starting Data Transmission) Set up Time tSCS 400 - - nsec * SDA－SCK↑ (Condition of Starting Data Receiving) Set up Time tSDC 80 - - nsec * SCK↑－SDA (Condition of Starting Data Receiving) Hold Time tHCD 80 - - nsec * (a) When CS is “Low”, micro computer control data (SCK/SDA) is enabled. (It doesn’t work when CS is “High”), (b) Data (SDA) is read at the leading edge of clock (SCK). (c) Latch reads at the leading edge of CS. (SCK has to be kept as “High” after D0 acquisition) (d) Timing where * mark is not guaranteed by the delivery inspection, but theoretical values on IC design. www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 8/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K (2) Control Data Format Basic Structure Table (“x” ･･･ don’t care bit. Either 0 or 1) (MSB) Data Transmission Description (Command + Setting data =16 bit) Command Function Description D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 0 0 0 0 0 Backup area x x x x x x x x x x Output Output Selector Input Input Input 0 0 0 1 1 Input gain x x Gain Gain Sel Gain x Sel A Front B Output gain Rear Rear 0 0 1 0 2 Backup area x x x x x x x x x Mix Mix Transition Switching 0 1 1 3 Monaural Signal 0 Volume gain FRch FLch Time Pattern 0 1 0 0 4 Backup area x x x x x x x x x x 0 1 0 1 5 Backup area x x x x x x x x x x 0 1 1 0 6 Backup area x x x x x x x x x x 1 1 1 7 Test sequence 0 0 0 0 0 0 0 0 0 0 0 Volume Front Transition Switching 1 0 0 0 8 x x Volume gain Lch Time Pattern Volume Front Transition Switching 1 0 0 1 9 x x Volume gain Rch Time Pattern Volume Center Transition Switching 1 0 1 0 10 x x Volume gain ch Time Pattern Volume Transition Switching 1 0 1 1 11 x x Volume gain Subwoofer ch Time Pattern Volume Rear Transition Switching 1 1 0 0 12 x x Volume gain Lch Time Pattern Volume Rear Transition Switching 1 1 0 1 13 x x Volume gain Rch time Pattern 1 1 1 0 14 Backup area x x x x x x x x x x 1 1 1 1 15 Backup area x x x x x x x x x x In changing command setting value, enable to select command from No.0 to No.15 Transmission has to be every 16bit as above format. Command Command name No. (LSB) D1 D0 x x Input Gain Front x x x x 0 x x x 0 x x x x (3) Initial Value when Power Source is ON. When power is ON, built-in power on reset circuit initializes setting data to bit “0” (Low) within the IC. However, just in case of set design stage, initial data has to be sent to all addresses when turning power ON, and mute setting is recommended during this initial data transmission. (4) Preventive Measure for Malfunction by Electrostatic Surge The IC’s logic circuit has shift registers to retain 16bit serial data which is external input from micon etc. The data, which is retained by shift registers, will be synchronized with CS signal leading edge, then is latched to each function. Therefore, if electrostatic surge is applied to the logic signal terminal (CS, SCK, SDA), inappropriate latch may cause malfunction of internal circuit. As a preventive measure for malfunction, 0000(hex) data transmission for command No.0 (backup area), at the end of every data transmission to specific command to initialize shift register in the IC is recommended. www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 9/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K (5) Command No.1 “Selector, Input Gain, Output Gain” Setting Data Chart Function (“x” ･･･ Either 0 or 1) (MSB) Transmission data (command + Setting data =16bit) (LSB) Command Setting data D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 1 x x x - Setting Command Input gain Front ch Center ch Subwoofer ch (Initial value) Input selector Front ch Center ch Subwoofer ch (Initial value) Input A ↑ Input B 0 0 +6 +12 (Initial value) Input Gain Rear ch dB dB ↑ dB dB 0 dB 0 dB ↑ +6 dB +12 dB Rear input B ↑ ↑ ↑ x x - - - - - - x - ↑ ↑ ↑ x x - - - - - - x 0 1 - - - - 0 0 1 1 0 1 0 1 x - - - 0 0 0 1 - - x - - - 1 0 ↑ ↑ ↑ x x - - ↑ ↑ ↑ x x - - Front input A Output gain A Output gain B Front input B (Initial value) 0 dB ↑ +2.5 dB (Initial value) 0 dB ↑ -4.5 dB www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 0 1 0 1 ↑ (Initial value) Rear input A Input selector Rear ch 0 0 1 1 ↑ ↑ ↑ x x - 0 1 ↑ ↑ ↑ x x 0 1 - 10/21 1 1 - - - - x - - - - - - - x - - - TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K (6) Command No.3 “Monaural signal circuit” Setting Data Chart (MSB) Transmission data (command + setting data=16bit) (LSB) Function Setting data Command Setting data D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 0 0 1 1 Command (Initial value） -∞dB(MUTE) +15 dB +14 dB +13 dB +12 dB ： ： +9 dB +8 dB +7 dB ↑ ↑ ↑ - - - - - ： 1 1 1 1 1 1 1 ： ： ： ： ： ： ： ： 1 1 1 1 ： 1 1 1 1 ： 1 1 1 1 ： 0 0 0 0 ： ： 1 1 1 1 1 0 1 0 ： 1 0 1 0 ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： 1 1 0 1 0 1 0 1 1 0 1 0 0 1 1 1 0 1 0 0 0 1 1 0 0 1 1 1 1 1 0 0 1 1 0 ： ： -62 dB -63 dB www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 0 ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： 1 0 0 0 0 0 0 0 1 1 1 1 1 1 ： Mixing Front Rch 0 ： ： -40 dB -41 dB Mixing Front Lch 0 ： ： ： ： ： ： ： 1 1 0 0 0 0 1 1 1 0 0 0 0 0 1 0 1 1 1 1 1 ： Volume switching transition time 0 ： ： -7 dB -8 dB -9 dB Volume switching pattern 0 ： ： +2 dB +1 dB 0 dB ↑ -1 dB -2 dB -∞dB（MUTE） (Initial value) Secondary Soft switching (Initial value) 0.64(msec/dB) 1.28 (msec/dB) 2.56 (msec/dB) 5.12 (msec/dB) (Initial value) OFF ON (Initial value) OFF ON 0 ： ： ： ： ： ： ： 1 1 1 0 0 0 1 1 1 1 0 0 0 0 1 1 0 1 1 1 1 ： Volume gain 0 ： ： ： ： ： ： ： ： ： ： ： ： ： 0 1 0 1 0 1 0 0 1 0 1 0 0 1 Else ↑ ↑ ↑ ↑ - - ↑ ↑ ↑ ↑ - - ↑ ↑ ↑ ↑ - ↑ ↑ ↑ ↑ 0 1 11/21 0 1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0 0 1 1 0 1 0 1 0 1 - - - TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K “Volume front L ch” “Volume front R ch” “Volume center ch” “Volume subwoofer ch” “Volume rear L ch” “Volume rear R ch” (7) Command No.8 Command No.9 Command No.10 Command No.11 Command No.12 Command No.13 Setting data chart Function Command Setting Volume FL ch Volume FR ch Volume C ch Volume SW ch Volume RL ch Volume RR ch (Initial Value) -∞dB(MUTE) +23 dB +22 dB +21 dB ： ： ： ： ： ： ： ： ： +9 dB +8 dB +7 dB ： ： ： ： ： ： ： 1 1 1 0 0 0 1 1 1 1 0 0 0 0 1 1 0 1 1 1 1 ： ： ： ： ： ： ： ： ： +2 dB +1 dB 0 dB Volume switching transition time ↑ ↑ ↑ ↑ x x - - -1 dB -2 dB Volume gain Volume switching Pattern ( “x” ･･･ Either 0 or 1) (MSB) Transmission data (command + setting data=16bit) (LSB) Command Setting data D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 1 0 0 0 1 0 0 1 1 0 1 0 x x x 1 0 1 1 1 1 0 0 1 1 0 1 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 0 1 ： ： ： ： ： ： ： ： ： -7 dB -8 dB -9 dB ： ： ： ： ： ： ： 1 1 0 0 0 0 1 1 1 0 0 0 0 0 1 0 1 1 1 1 1 ： ： ： ： ： ： ： ： ： -40 dB -41 dB ： ： ： ： ： ： ： 1 0 0 0 0 0 0 0 1 1 1 1 1 1 ： ： ： ： ： ： ： ： ： -78 dB -79 dB ： ： ： ： ： ： ： 0 0 1 1 0 1 0 0 0 1 1 0 0 1 Else -∞dB（MUTE） (Initial value) Secondary Soft switching (Initial value) 0.64 (msec/dB) 1.28 (msec/dB) 2.56 (msec/dB) 5.12 (msec/dB) www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 ： ： ： ： ： ： ： 1 1 0 1 0 1 0 1 1 0 1 0 0 1 - 1 1 0 1 0 0 0 1 1 0 0 1 1 1 1 1 0 0 1 1 0 ↑ ↑ ↑ ↑ x x ↑ ↑ ↑ ↑ x x 12/21 - - 0 0 1 1 0 1 0 1 0 1 - - - - - - x - - - - - - - x TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K 2. Application Circuit Example OUTBRL OUTBSW OUTBC OUTBFR OUTBFL OUTARR OUTARL OUTASW OUTAC 33 DGND 34 32 31 30 29 28 27 26 25 24 OUTAFR OUTBRR 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 4.7µ 23 22 OUTAFL 4.7µ SDA 35 21 SOUTRR SCK 36 20 SOUTRL 4.7µ 4.7µ 19 AGND6 (Schottky Di) CS 37 39k TEST 38 18 INBRR ADJ 39 17 INBRL VEE 40 16 AGND5 AGNDM 41 15 INBSW 1µ 1µ 47µ 0.1µ 47µ 1µ 0.1µ 14 INBC VCC 42 2 3 4 5 6 7 8 9 10 11 INAFR AGND1 INAC INASW AGND2 INARL INARR AGND3 INBFL INEX- 44 1 AGNDE 1µ INEX+ 43 INAFL 1µ 1µ 13 AGND4 1µ 1µ 1µ 1µ 1µ 1µ 1µ 12 INBFR 1µ UNIT RESISTANCE : Ω CAPACITANCE : F 【1：Oscillation countermeasure】 ・Using higher capacity than 10pF may cause oscillation. As oscillation countermeasure, insert series resistor to terminal directly as below. Terminal Direct-mount Resistor for oscillation countermeasure Capacity type Series resister C < 10pF （Not necessary） 10pF < C < 100pF 100Ω 100pF < C < 1000pF 100Ω Output terminal (Coupling capacitor) 【2：Mounting pattern】 ・Wire a GND line to the GND point which becomes a standard by the independence. ・Wiring pattern of CS, SCK and SDA should be away from the analog lines to avoid cross-talk. ・Input lines should not be parallel if possible. The lines should be shielded, if they are adjacent to each other. ・Please connect the resistor (39kΩ) for adjusting VCO frequency to ADJ terminal in the shortest distance possible. www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 13/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K (1) Volume Control Description (Bold with underline is initial setting value) (a) Volume setting value (For 5.1ch signal) (For Monaural signal) +23dB to -79dB, –∞dB(mute), +15dB to -63dB, –∞dB(mute), : : 1dB/step 1dB/step (b) Selection of switching formula： Secondary switching, soft switching (c) Soft switching transition time（Transition time/dB） ： 0.64 / 1.28 / 2.56 / 5.12 [msec/dB] （*） Transition time of soft switching Transition per dB is fixed, is not affected by changing of volume. Fresh setup (1dB) Present setup GND (2) In case of receiving following setting command during volume changing Terminate current transition and start next transition. Switching volume can be done with only 1dB/step, so termination or restart of transition is on timing of 1dB/step basis. [dB] 1dB interval 0.64msec 1dB interval 2.56msec -18 （ Volume gain [dB] ） -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 （Command） （ time ）→ Order example② ［-24dB、0.64msec/dB］ Order example① ［-30dB、2.56msec/dB］ Transition image of gain setup in the volume operation . (Figure notes) When setting command example1, volume gain drops from -20dB to -30dB with 2.56msec/dB. In the figure, when setting command example 2 during a transition from -27dB to -28dB, command example 2 will be set when it reaches -28dB because termination or restart can be done every 1dB unit. www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 14/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K I/O Equivalent Circuits Terminal Number Terminal Name 2 3 5 6 8 9 11 12 14 15 17 18 INAFL INAFR INAC INASW INARL INARR INBFL INBFR INBC INBSW INBRL INBRR I/O Terminal Voltage Terminal Equivalent Circuits VCC VCC I 0V 100k VEE VEE VCC VCC 43 INEX+ I 13.5k 0V 13.5k VEE VEE VCC VCC 13.5k 44 INEX- I 13.5k 0V K VEE V EE 20 21 22 23 24 25 26 27 28 29 30 31 32 33 SOUTRL SOUTRR OUTAFL OUTAFR OUTAC OUTASW OUTARL OUTARR OUTBFL OUTBFR OUTBC OUTBSW OUTBRL OUTBRR VCC VCC O www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 0V VEE VEE 15/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K I/O Equivalent Circuits – continued Terminal Number Terminal Name I/O Terminal Voltage Terminal Equivalent Circuits VCC V CC 35 36 37 SDA SCK CS 5K I 3P DGND VEE VEE VCC V CC 39 ADJ - 0.7V AGNDM VEE VEE 1 4 7 10 13 16 19 34 41 AGNDE AGND1 AGND2 AGND3 AGND4 AGND5 AGND6 DGND AGNDM VCC V CC - 0V VEE V EE VCC V CC 42 40 VCC VEE - 8.3V -8.3V VEE VEE www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 16/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Operational Notes 1. Reverse Connection of Power Supply Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when connecting the power supply, such as mounting an external diode between the power supply and the IC’s power supply pins. 2. Power Supply Lines Design the PCB layout pattern to provide low impedance supply lines. Separate the ground and supply lines of the digital and analog blocks to prevent noise in the ground and supply lines of the digital block from affecting the analog block. Furthermore, connect a capacitor to ground at all power supply pins. Consider the effect of temperature and aging on the capacitance value when using electrolytic capacitors. 3. VEE Voltage Ensure that no pins are at a voltage below that of the VEE pin at any time, even during transient condition. 4. Ground Wiring Pattern When using both small-signal and large-current ground traces, the two ground traces should be routed separately but connected to a single ground at the reference point of the application board to avoid fluctuations in the small-signal ground caused by large currents. Also ensure that the ground traces of external components do not cause variations on the ground voltage. The ground lines must be as short and thick as possible to reduce line impedance. 5. Thermal Consideration Should by any chance the power dissipation rating be exceeded the rise in temperature of the chip may result in deterioration of the properties of the chip. In case of exceeding this absolute maximum rating, increase the board size and copper area to prevent exceeding the Pd rating. 6. Recommended Operating Conditions These conditions represent a range within which the expected characteristics of the IC can be approximately obtained. The electrical characteristics are guaranteed under the conditions of each parameter. 7. Inrush Current When power is first supplied to the IC, it is possible that the internal logic may be unstable and inrush current may flow instantaneously due to the internal powering sequence and delays, especially if the IC has more than one power supply. Therefore, give special consideration to power coupling capacitance, power wiring, width of ground wiring, and routing of connections. 8. Operation Under Strong Electromagnetic Field Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction. 9. Testing on Application Boards When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should always be turned off completely before connecting or removing it from the test setup during the inspection process. To prevent damage from static discharge, ground the IC during assembly and use similar precautions during transport and storage. 10. Inter-pin Short and Mounting Errors Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result in damaging the IC. Avoid nearby pins being shorted to each other especially to ground, power supply and output pin. Inter-pin shorts could be due to many reasons such as metal particles, water droplets (in very humid environment) and unintentional solder bridge deposited in between pins during assembly to name a few. 11. Unused Input Pins Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect on the conduction through the transistor and cause unexpected operation of the IC. So unless otherwise specified, unused input pins should be connected to the power supply or ground line. www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 17/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Operational Notes – continued 12. Regarding the Input Pin of the IC This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated. P-N junctions are formed at the intersection of the P layers with the N layers of other elements, creating a parasitic diode or transistor. For example (refer to figure below): When VEE > Pin A and VEE > Pin B, the P-N junction operates as a parasitic diode. When VEE > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to operate, such as applying a voltage lower than the VEE voltage to an input pin (and thus to the P substrate) should be avoided. Resistor Transistor (NPN) Pin A Pin B C E Pin A N P+ P N N P+ N Parasitic Elements N P+ N P N P+ B N C E Parasitic Elements P Substrate P Substrate VEE GND Parasitic Elements Pin B B VEE GND VEE GND Parasitic Elements VEE GND N Region close-by Figure 1. Example of monolithic IC structure www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 18/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Ordering Information B D 3 4 3 Part Number 3 K - Package K: QFP44 xx Packaging and forming specification E2: Embossed tape and reel None: Tray Marking Diagram QFP44 (TOP VIEW) Part Number Marking BD3433K LOT Number 1PIN MARK www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 19/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Physical Dimension, Tape and Reel Information Package Name QFP44 Unit：mm www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 20/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 BD3433K Revision History Date Revision 16.Dec.2015 001 Changes New Release www.rohm.com © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 21/21 TSZ02201-0C2C0E100610-1-2 16.Dec.2015 Rev.001 Datasheet Notice Precaution on using ROHM Products 1. Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment, OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you (Note 1) , transport intend to use our Products in devices requiring extremely high reliability (such as medical equipment equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific Applications. (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASSⅢ CLASSⅡb CLASSⅢ CLASSⅢ CLASSⅣ CLASSⅢ 2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are designed and manufactured for use under standard conditions and not under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation depending on ambient temperature. When used in sealed area, confirm that it is the use in the range that does not exceed the maximum junction temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice-PGA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.002 Datasheet Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label QR code printed on ROHM Products label is for ROHM’s internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign trade act, please consult with ROHM in case of export. Precaution Regarding Intellectual Property Rights 1. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. 2. ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the Products with other articles such as components, circuits, systems or external equipment (including software). 3. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to manufacture or sell products containing the Products, subject to the terms and conditions herein. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice-PGA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.002 Datasheet General Precaution 1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents. ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny ROHM’s Products against warning, caution or note contained in this document. 2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s representative. 3. The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or concerning such information. Notice – WE © 2015 ROHM Co., Ltd. All rights reserved. Rev.001