LV3313PM Electronic Volume IC with tone Control Application Note http://onsemi.com Overview The LV3313PM is an electronic volume and tone control IC implements a rich set of audio control functions. Functions include input selection switching function, an input gain, volume, loudness, balance, fader and bass/treble control. Functions Input switching: One of four input systems (left and right channels) can be selected. (Three of the input systems are single-end inputs, one uses differential inputs.) Input gain control: The input single can be amplified by 0 to +18dB (1dB steps.) Loudness control: Taps are output starting at the –32dB position of the ladder resistor and a loudness function implemented with external capacitor and resistor components. Volume control: A total of 91 positions from +10 to –79dB in 1dB steps and –∞dB. 2 band equalizer control Bass control: The bass control gain can be maximum boost +12dB position and maximum cut –12dB position.( +12dB to –12dB in 2dB steps.) Treble control: The treble control gain can be maximum boost +12dB position and maximum cut –12dB position.( +12dB to –12dB in 2dB steps.) Fader control: The fader volume can be attenuations by one of 16 levels. (A total of 16 settings with attenuations of 0 to –2dB in 1dB steps,-2 to –20dB in 2dB steps, –30,－45,－60,and －∞dB settings.) Mute Features Zero-cross switching circuits (Input gain control block ,Volume control block,2 band equalizer control block and Fader control block) and soft mute circuits used for low noise even when input signals are present. Low current (by BiCMOS process) All functions are controlled using serial data (CCB). Resistance (240KΩ) connect between Vreg and Vss, microcontroller interface 3 voltage control movement possible. Semiconductor Components Industries, LLC, 2013 February, 2013 1/21 LV3313PM Application Note TEST 40 PH 41 VREF 42 R1 43 R2 44 R3 L4P LSELO LVRIN LCT LF3C1 LF1C1 LF1C2 LF1C3 LVROUT LFIN 1 2 3 4 LFOUT 22 LROUT 21 AVSS 20 CE 19 DI 18 CL 17 OSC 16 VREG 15 DVSS 14 RROUT 13 RFOUT 12 RFIN 39 23 RVROUT MUTE 24 RF1C3 38 25 RF1C2 VDD 26 RF1C1 37 27 RF3C1 L1 28 RCT 36 29 RVRIN L2 30 RSELO 35 31 R4P L3 32 R4M 34 33 L4M Pin Arrangement 5 6 7 8 9 10 11 2/21 LV3313PM Application Note QIP44M (1.6) (unit:mm) 1.0 13.2 10.0 0.8 0.2 23 22 13.2 10.0 0.8 1.0 33 34 (1.6) 1.0 44 12 1 1 2.5 0.1 0.35 2.8max 1.0 1 0.8 11.6 Specifications Absolute Maximum Ratings at Ta=25 ºC,VSS=0V Parameter Symbol Conditions Ratings Unit Maximum supply voltage VDD max VDD 9.5 V Maximum input voltage VIN max All input pins VSS-0.3 to VDD V Operating temperature Topr -40 to +85 ºC Storage temperature Tstg -50 to +125 ºC Allowable power dissipation Pd max 600 mW Ta≤85 ºC,when mounted on a printed circuit board Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 3/21 LV3313PM Application Note Allowable Operating Ranges at Ta=25 ºC,VSS=0V Ratings Parameter Supply voltage High-level input voltage Symbol Conditions VDD VIH Unit VDD CL,DI,CE min typ max 7.0 8.0 9.0 V Power of μ-con used to 5.0V 4.5 5.5 Power of μ-con used to 3.3V 3.0 3.6 VSS 1.0 V VSS VDD Vp-p Power of μ-con used to 5.0V V Low-level input voltage VIL Input voltage amplitude VIN Input pulse width TφW CL 1 μs Setup time Tsetup CL,DI,CE 1 μs Hold time Thold CL,DI,CE 1 μs Operating frequency fopg CL CL,DI,CE Power of μ-con used to 3.3V 500 KHz Electrical Characteristics at Ta=25 ºC,VDD=8V,VSS=0V Input Block Ratings Parameter Symbol Pins Conditions Unit min Input resistance Rin L1-L3,R1-R3 Minimum input gain Ginmin L1-L3,R1-R3 Maximum input gain typ max KΩ 50 -1.0 0 +1.0 dB Ginmax +17 +18 +19 dB Inter-step setting error ATerr -1.0 +1.0 dB Left/Right balance BAL -0.5 +0.5 dB Volume Block Ratings Parameter Symbol Pins Conditions Unit min Input resistance Rvr Inter-step setting error ATerr Left/Right balance BAL LVRIN,RVRIN typ max KΩ 50 +10dB to -40dB -0.5 +0.5 dB -0.5 +0.5 dB 4/21 LV3313PM Application Note Bass Block Ratings Parameter Symbol Pins Conditions Unit min typ max ±12 ±14 dB bass control range Gb max max.boost/cut ±10 Inter-step setting error ATerr -10dB to +10dB -0.5 +0.5 dB Left/Right balance BAL -0.5 +0.5 dB Treble Block Ratings Parameter Symbol Pins Unit Conditions min typ Max ±12 ±14 dB treble control range Gb max max.boost/cut ±10 Inter-step setting error ATerr -10dB to +10dB -0.5 +0.5 dB Left/Right balance BAL -0.5 +0.5 dB Fader Block Ratings Parameter Symbol Pins min Input resistance Inter-step setting error Left/Right balance Unit Conditions Rfed typ Max KΩ 50 0dB to -2dB -0.5 +0.5 dB -4dB to -20dB -1.0 +1.0 dB -30dB -2.0 +2.0 dB -45dB -3.0 +3.0 dB 0dB to -30dB -0.5 +0.5 dB ATerr BAL 5/21 LV3313PM Application Note Overall Characteristics at Ta=25 ºC,VDD=8V,VSS=0V Ratings Parameter Conditions Symbol Unit min typ Max A loss of insertion ATT -1.0 +1.0 Total harmonic distortion THD VIN= 0dBV,f= 1kHz 0.01 % Inter-input crosstalk CT VIN= 1Vrms,f= 1kHz 80 dB Left/Right channel crosstalk CT VIN= 1Vrms,f= 1kHz 80 dB Maximum attenuation Vomin VIN= 1Vrms,f= 1kHz 80 dB Output noise voltage VN 25 μV Current drain IDD 16 mA Input high-level current IIH CL,DI,CE,VIN=5.5V Input low-level current IIL CL,DI,CE,VIN=0V Maximum input voltage VCL THD=1% RL=10KΩ all controls flat,fIN=1kHz 2.2 Vrms Common-mode rejection ratio CMRR VIN=0dBV,f=1kHz 50 dB 10 dB μA μA -10 ～ ～ Control System Timing and Data Format The LV3313PM is controlled by applying the stipulated data to the CL,DI and CE pins.The data consists of a total of 104 bits, of which 8 bits are the device address,96 bits are the control data. B0 B1 B2 B3 A0 A1 A2 A3 D0 D1 D2 D3 D4 D5 D92 D93 D94 D95 ～ ～ DI ～ ～ ～ ～ CE CL 1μs 1μs 1μs min min min CE ～ ～ 1μs min 1μs min ～ ～ CL data :96bits(D0-D95) ～ ～ Address code :8bits(B0-B3,A0-A3) ～ ～ DI 1μs ≤ TDEST 6/21 LV3313PM Application Note Address code B0 1 B1 0 B2 0 B3 0 A0 0 A1 0 D7 D12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 Lch Rch 0dB +1dB +2dB +3dB +4dB +5dB +6dB +7dB +8dB +9dB +10dB +11dB +12dB +13dB +14dB +15dB +16dB +17dB +18dB A2 0 A3 1 Data setting Input switching control D0 0 1 0 1 0 D1 0 0 1 1 0 D2 0 0 0 0 1 Input gain control D3 D4 D8 D9 0 0 1 0 0 1 1 1 0 0 1 0 0 1 1 1 0 0 1 0 0 1 1 1 0 0 1 0 0 1 1 1 0 0 1 0 0 1 D5 D10 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 INIT L1(R1) L2(R2) L3(R3) L4(R4) D6 D11 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 7/21 LV3313PM Application Note Volume control (10dB to -37dB) D13 D14 D15 D16 D21 D22 D23 D24 0 1 1 0 1 1 1 0 0 0 0 1 1 0 0 1 0 1 0 1 1 1 0 1 0 0 1 1 1 0 1 1 0 1 1 1 1 1 1 1 0 0 0 0 1 0 0 0 0 1 0 0 1 1 0 0 0 0 1 0 1 0 1 0 0 1 1 0 1 1 1 0 0 0 0 1 1 0 0 1 0 1 0 1 1 1 0 1 0 0 1 1 1 0 1 1 0 1 1 1 1 1 1 1 0 0 0 0 1 0 0 0 0 1 0 0 1 1 0 0 0 0 1 0 1 0 1 0 0 1 1 0 1 1 1 0 0 0 0 1 1 0 0 1 0 1 0 1 1 1 0 1 0 0 1 1 1 0 1 1 0 1 1 1 1 1 1 1 0 0 0 0 1 0 0 0 0 1 0 0 1 1 0 0 0 0 1 0 1 0 1 0 D17 D25 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 D18 D26 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 D19 D27 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D20 D28 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Lch Rch 10dB 9dB 8dB 7dB 6dB 5dB 4dB 3dB 2dB 1dB 0dB -1dB -2dB -3dB -4dB -5dB -6dB -7dB -8dB -9dB -10dB -11dB -12dB -13dB -14dB -15dB -16dB -17dB -18dB -19dB -20dB -21dB -22dB -23dB -24dB -25dB -26dB -27dB -28dB -29dB -30dB -31dB -32dB -33dB -34dB -35dB -36dB -37dB 8/21 LV3313PM Application Note Volume control (-38dB to -∞) D13 D14 D15 D21 D22 D23 0 1 1 1 1 1 0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1 0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1 0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1 0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1 0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 1 1 0 0 0 D16 D24 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 D17 D25 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 D18 D26 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D19 D27 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D20 D28 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Lch Rch -38dB -39dB -40dB -41dB -42dB -43dB -44dB -45dB -46dB -47dB -48dB -49dB -50dB -51dB -52dB -53dB -54dB -55dB -56dB -57dB -58dB -59dB -60dB -61dB -62dB -63dB -64dB -65dB -66dB -67dB -68dB -69dB -70dB -71dB -72dB -73dB -74dB -75dB -76dB -77dB -78dB -79dB -∞ 9/21 LV3313PM Application Note Treble block GAIN D29 D33 0 1 0 1 0 1 0 1 0 1 0 1 0 D30 D34 1 0 0 1 1 0 0 0 1 1 0 0 1 D31 D35 1 1 1 0 0 0 0 0 0 0 1 1 1 D32 D36 1 1 1 1 1 1 0 0 0 0 0 0 0 Lch Rch +12dB +10dB +8dB +6dB +4dB +2dB 0dB -2dB -4dB -6dB -8dB -10dB -12dB D38 D42 1 0 0 1 1 0 0 0 1 1 0 0 1 D39 D43 1 1 1 0 0 0 0 0 0 0 1 1 1 D40 D44 1 1 1 1 1 1 0 0 0 0 0 0 0 Lch Rch +12dB +10dB +8dB +6dB +4dB +2dB 0dB -2dB -4dB -6dB -8dB -10dB -12dB Bass block GAIN D37 D41 0 1 0 1 0 1 0 1 0 1 0 1 0 10/21 LV3313PM Application Note Fader block D45 D51 D57 D63 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 D46 D52 D58 D64 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 D47 D53 D59 D65 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 D48 D54 D60 D66 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 D49 D55 D61 D67 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D50 D56 D62 D68 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 LFOUT LROUT RFOUT RROUT 0dB -1dB -2dB -4dB -6dB -8dB -10dB -12dB -14dB -16dB -18dB -20dB -30dB -45dB -60dB -∞ Loudness control D69 0 1 OFF ON Zero Cross control D70 0 OFF 1 ON Zero Cross Signal detection block control D71 0 Input gain 1 Volume D72 0 1 D73 0 Manual detection Auto detection D74 0 11/21 LV3313PM Application Note Zero Cross time select control D75 D76 0 0 10ms 1 0 20ms 0 1 40ms 1 1 80ms Soft mute control D77 0 Soft mute mode off 1 Soft mute mode on D78 0 1 mute set off mute set on Test mode D79 0 1 D80 0 0 normal mode test mode Soft mute settling time select control D81 D82 0 0 mute time 0.64ms 1 0 mute time 5.12ms 0 1 mute time 40ms 1 1 mute time 80mS D83 0 D84 0 D85 0 D86 0 D87 0 D88 0 D89 0 D90 0 D91 0 D92 0 D93 0 D94 0 D95 0 12/21 LV3313PM Application Note About recommended setting <Setting of Init data> Input selector:INIT Input gain:0dB Volume:-70dB Treble:0dB Bass:0dB Fader:0dB Loudness: OFF Zero Cross control: OFF Zero cross detection :Input GAIN Zero cross manual detection Zero cross timer:10ms Soft Mute: OFF Mute Setting: OFF Testing: Normal Mute Setting Time:0.64mS <After the INIT data is sended, recommended basic setting> Input selector:L1/R1 Input gain:0dB Volume:-70dB Treble:0dB Bass:0dB Fader:0dB Loudness: OFF Zero Cross control: ON Zero cross detection :Input GAIN Zero cross manual detection Zero cross timer:10ms Soft Mute: OFF Mute Setting: OFF Testing: Normal Mute Setting Time:0.64mS About the sound level adjustment of the volume, the volume control sets it in 1dB_step, and, please do variableness. 13/21 LV3313PM Application Note Pin Functions Pin PinNo. Function Notes VDD LFIN RFIN 23 11 Fader block input pins. Drive at low impedance. LFOUT LROUT RFOUT RROUT 22 21 12 13 Fader output pins. Attenuation is possible separately for the front end and rear end. VDD Vref 41 Connect a capacitor of a few tens of uF between Vref and AVss(Vss) as a 0.55×VDD voltage generator, current ripple countermeasure. LVref RVref VDD VREG 15 Internal logic voltage pin VDD 37 Power supply pin AVSS 20 Analog system ground pin VDD MUTE 38 External muting control pin Setting this pin to Vss level sets forcibly fader volume block to -∞ level. LF1C1 LF1C2 LF1C3 RF1C1 RF1C2 RF1C3 27 26 25 7 8 9 Equalizer F1 band filter configuration capacitor connection pins. Connect capacitor between LF1C1(RF1C1)and LF1C2(RF1C2) LF1C2(RF1C2)and LF1C3(RF1C3) 14/21 LV3313PM Application Note Pin PinNo. Function LF3C1 RF3C1 28 6 Equalizer F3 band circuit filter configuration capacitor connection pins. Connect high-pass compensation capacitor between LF3C1(RF3C1) and VSS. CL DI 17 18 Input pin for serial data and clock used for control. CE 19 Chip enable pin.Data is written to the internal latch and the analog switches are operated when the level changes from High to Low.Data transfer is enabled when the level is High. TEST 39 Normally this pin is OPEN. DVSS 14 Logic system ground pin. Notes VDD VDD OSC 16 External oscillat input pin. PH 40 Auto zero cross detection control pin 15/21 LV3313PM Application Note Usage Cautions (1)Data Transmission at power on The status of internal analog switches is unstable at power on. Therefore, perform muting or some other countermeasure until the data has been set. At power on, initial setting data must be sent once in order to stabilize the bias of each block in a short time. (2) Description of zero cross switching circuit operation The LV3313PM have a function to switch zero cross comparator signal detection locations,enabling the selection of the optimum detection location for blocks whose data is to be updated.Basically,the switching noise can be minimized by inputting the signal immediately following the block whose data is to be updated to the zero cross comparator,so it is necessary to switch the detection location every time. Input gain Volume Fader Switch Zero cross comparator LV3313PM zero cross detection circuit (3) Zero Cross Switching Control method The zero cross switching control method consists of setting the zero cross control bits to the zero cross detection mode, and specifying the detection blocks before transmitting the data.These control bits are latched immediately following data transfer,that is to say beforehand in sync with the falling edge of CE,so when updating data of volumes,etc.,it is possible to perform mode setting and zero cross switching with one data transfer. (4)Soft mute operation The LV3313PM have a soft mute function for low switching noise, when this mute function operation.(mute/unmute function select) set The Soft mute time can be selected by send to CCB control.(0.6ms,5ms,40ms,80ms) A soft mute function can be implemented by set to soft mute on.(Set to mute on/off) Soft mute time Soft mute time 16/21 LV3313PM Application Note Characteristic (1) Input Block VDD=8V,VSS=0V,Vin=-20dBV,f=1kHz VDD=8V,VSS=0V,Vin=-20dBV,f=1kHz (2-1)Volume Block (step:0 to +10dB) VDD=8V,VSS=0V,Vin=-20dBV,f=1kHz,80kHzLPF VDD=8V,VSS=0V,Vin=-20dBV,f=1kHz,80kHzLPF (2-2)Volume Block (step:0 to -∞dB) VDD=8V,VSS=0V,Vin=0dBV,f=1kHz,80kHzLPF VDD=8V,VSS=0V,Vin=0dBV,f=1kHz,80kHzLPF 17/21 LV3313PM Application Note (3)Fader Block VDD=8V,VSS=0V,Vin=0dBV,f=1kHz VDD=8V,VSS=0V,Vin=0dBV,f=1kHz VDD=8V,VSS=0V,Vin=0dBV,f=1kHz VDD=8V,VSS=0V,Vin=0dBV,f=1kHz (4)Bass VDD=8V,VSS=0V,Vin=-20dBV (5)Treble VDD=8V,VSS=0V,Vin=-20dBV 18/21 LV3313PM Application Note (6)Loudness VDD=8V,VSS=0V,Vin=0dBV (7)THD-Vin VDD=8V,VSS=0V,80kHzLPF (8)THD-f VDD=8V,VSS=0V,80kHzLPF 19/21 LV3313PM Application Note Application Circuit 0.1μF 4.7kΩ 68KΩ 1μF 2700pF 220pF 1μF 0.1μF 0.1μF 33 32 31 30 29 28 27 26 25 24 23 L4P LSELO LVRIN LCT LF3C1 LF1C1 LF1C2 LF1C3 LVROUT LFIN 10μF L4M 1μF 1μF 10μF 34 L3 LFOUT 35 L2 LROUT 36 L1 AVSS 37 VDD 38 MUTE DI 39 TEST CL 40 PH 22 1μF 1μF CE 0.47μF OSC 21 10μF 20 19 18 μCOM 17 16 1μF 22μF 41 VREF VREG 42 R1 DVSS 43 R2 RROUT 44 R3 RFOUT 15 240kΩ RSELO RVRIN RCT RF3C1 RF1C1 RF1C2 RF1C3 RVROUT RFIN 1μF R4P 1μF R4M 1μF 1 2 3 4 5 6 7 8 9 10 11 1μF 1μF 1μF 220pF 14 13 10μF 12 10μF 10μF 0.1μF 2700pF 68KΩ 0.1μF 4.7kΩ 0.1μF 20/21 LV3313PM Application Note ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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