IS31AP2121 I2S 2 20W STEREO/1 40W MONO DIGITAL AUDIO AMPLIFIER WITH 20 BANDS EQ FUNCTIONS, DRC AND 2.1CH MODE

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1 ISAP IS W STEREO/ W MONO DIGITAL AUDIO AMPLIFIER WITH BANDS EQ FUNCTIONS, DRC AND.CH MODE DESCRIPTION The ISAP is an IS digital audio amplifier capable of driving W (BTL) each to a pair of 8Ω speakers and W (PBTL) to a Ω speaker operating at V supply without external heat-sink or fan. The ISAP is also capable of driving Ω, W(SE)x+8Ω, W(BTL)x at V supply for.ch application. The ISAP can provide advanced audio processing functions, such as volume control, EQ bands, audio mixing, D surround sound and Dynamic Range Control (DRC),programmable via a simple IC control interface. Robust protection circuits are provided to protect the ISAP from damage due to accidental erroneous operating conditions. The full digital circuit design of ISAP is more tolerant to noise and PVT (Process, Voltage, and Temperature) variation than analog Class-AB or Class-D audio amplifiers. In addition, its robust built-in anti-pop circuitry enables pop free operation during instantaneous power on/off or mute/shut down switching. QUICK START Figure : Photo of ISAP Evaluation Board RECOMMENDED EQUIPMENT ~V, A power supply Audio source with.mm mini plug Speakers: mono mode, 8Ω/Ω W.CH mode, 8Ω W.CH mode, Ω W +8Ω W FEATURES /8//-bits input with IS, Left-alignment and Right-alignment data format PSNR & DR (A-weighting) Loudspeaker: db (PSNR), db Multiple sampling frequencies (F S ) - khz /.khz / 8kHz and - khz / 88.kHz / 9kHz and - 8kHz / 7.kHz / 9kHz System clock = x, 8x, 9x, x, 8x, x, 7x, 78x, x Fs - x~x F S for khz/.khz/ 8kHz - x~x F S for khz/ 88.kHz/ 9kHz - x~x F S for 8kHz/ 7.kHz/ 9kHz Supply voltage -.V for digital circuit - V~V for speaker driver Supports.CH/.CH/Mono configuration Loudspeaker output power for at V - W CH into THD+N for stereo - W CH into THD+N for stereo - W CH into THD+N for stereo Sound processing including: - bands parametric speaker EQ - Volume control (+db ~ -db,.db/step), - Dynamic range control (DRC) - Dual band dynamic range control - Power clipping - D surround sound - Channel mixing - Noise gate with hysteresis window - Bass/Treble tone control - Bass management crossover filter - DC-blocking high-pass filter Anti-pop design Short circuit and over-temperature protection Supports IC control without MCLK IC control interface with selectable device address Support BCLK system Support hardware and software reset Internal PLL LV Under-voltage shutdown and HV Under-voltage detection Power saving mode ABSOLUTE MAXIMUM RATINGS V power supply Ω and 8Ω speaker Caution: Do not exceed the conditions listed above; otherwise the board will be damaged. Integrated Silicon Solution, Inc. Rev. B, //

2 ISAP IS W STEREO/ W MONO DIGITAL AUDIO AMPLIFIER WITH BANDS EQ FUNCTIONS, DRC AND.CH MODE ORDERING INFORMATION Part No. Temperature Range Package ISAP-LQLS-EB C to +7 C (Industrial) e-lqfp-8, Lead-free Table : Ordering Information For pricing, delivery, and ordering information, please contacts ISSI s analog marketing team at analog@issi.com or (8) 99-. PROCEDURE The ISAP demo board is fully assembled and tested. Follow the steps listed below to verify board operation. Caution: Do not turn on the power supply until all connections are completed. ) Connect the power supply to connector JDC or header JP. ) Connect as: a. Stereo (.) mode: select JP8 = L, connect a pair of 8Ω speakers to the L (JP) connector and R (JP9) connector. b..ch mode: select JP8 = L, connect a pair of Ω W speakers to the SE_R connector (JP) and SE_L connector (JP). Connect an 8Ω W speaker to R (JP9). c. Mono mode: select JP8 = H, connect a Ω W or 8Ω W speaker to MONO connector (JP) ) Connect an audio source to the audio connector (.mm stereo plug) J. ) Turn on the power supply. ) ISAP s default setting is mute and.ch stereo mode. Please program via the IIC interface a) Enable the part (demute): clear the D of the register x to demute the master mute, clear the D:D of register x to demute the channels mute. b) Enable the.ch mode: set the SEM (D of register x) c) Program the register x to adjust the master volume, program the register x-x to adjust the channels volume ) Turn on the audio source. 7) If necessary, use IC port to program other modes and enable features such as surround sound, equalization, etc, please refer to the ISAP datasheet for more details. Integrated Silicon Solution, Inc. Rev. B, //

3 ISAP IS W STEREO/ W MONO DIGITAL AUDIO AMPLIFIER WITH BANDS EQ FUNCTIONS, DRC AND.CH MODE JUMPER AND SWITCH SETTING TABLE Jumper/Switch Options S Enable/disable ISAP L(): shutdown mode H(): standby mode S Hardware reset Pressed: reset JP.V output JP V input Power input JP JP JP JP JP7 JP8 (PBTL) JP9 JP JP JP JP JP ADC (U) Output (MCLK,DATA,LRCIN,BCLK) IC interface, SDA, SCL can be connected to external MCU to control the ISAP. ISAP s IS Input (MCLK, DATA, LRCIN, BCLK) PLL ratio setting pin during power up, PMF register will be default set PLL ratio multiply by or. This pin could be PLL clock out if bit7 of register x is enabled. Enable/Disable PBTL Right channel output connector Lelt channel output connector Mono output connector.ch mode, Lelt channel output connector.ch mode, Right channel output connector Dual function. A) IC address setting during power up B) error status output reporting, drives LED D Setting (Jumper on H for logic, on L for logic ).V output, if AMS7 is not mounted, can provide.v from this connecter program interface L (): PMF [:]=[] (register xh), PLL ratio x to avoid system MCLK over flow. H (): PMF[:]=[], PLL ratio x. L():BTL mode H():PBTL mode (Parallel BTL) A) L():Set the IC device address to x H():Set the IC device address to x B) LED D ON Error LED D OFF Normal operation Integrated Silicon Solution, Inc. Rev. B, //

4 9 8 7 L 7 8 ISAP IS W STEREO/ W MONO DIGITAL AUDIO AMPLIFIER WITH BANDS EQ FUNCTIONS, DRC AND.CH MODE VCC JDC C uf/ JP.V JP VCC.V V.V DVDD.V L C C DVDD nf nf L C9 nf VCC R8 NC VIN C uf U XL9- SD FB R9 K R OUT L uh D C8 SS uf/v V U AMS7 IN C7 nf VO VO.V JP8 C uf/v.v R K H PBTL L.V R K JP7 H CLK_OUT L CLK_OUT R K JP IIC_SEL.V R K H ERROR L R K.V R.7K R7.7K SCL SDA JP IC ASDATA.V ALRCIN ABCLK R K S R9 K R R D S RESET.V.V RADD RADD K NC VL M RADD RADD NC K J AUDIO INPUT MCLK_ O R R ASDATA_O R R LRCIN_O BCLK_O R R PD R8 ERROR NC C nf Q LED.V R Meg C uf M MCLK_ O VL.V ASDATA C ABCLK nf ALRCIN R R R R k k L JP ADC R Meg N9 R 8K U M MCLK VL SDOUT VD 7 SCLK 8 LRCK CS K K C nf JP IS.V.V ERROR RESET M FILT+ REF_ VA AINR VQ AINL RST C uf C uf C nf C uf JP MCLK SDATA LRCIN BCLK.V NC VCC Y OUT DVDD C uf ERROR R K MCLK 7 8 PD 9 LRCIN BCLK SDATA SDA SCL C uf MCLK_O C nf ISAP C8 nf.v RESET ADC_INR C9 uf C nf DVDD ADC_INL C8 9 ADC_RST C7 uf nf.v ADC_INL R7 K ADC_INR ADC_RST C nf DVDD L C VCC R R C nf C nf VSS PBTL CLK_OUT E-PAD DVDD ERRORB MCLK PDB LRCIN BCLK SDATA SDA SCL D PBTL CLK _OUT VCCLB VCCLA OUTLA RSTB DVDD D VCCRB VCCRA OUTRA DVDD VSS + 7uF/V U 8 L 7 L OUTLB VCCLB VCCRB 9 OUTRB 8 R 7 R L VCC C9 uf C + C7 R7 nf 7uF/V R L8 C R R R R 7p C8 R R9 R R 7p L nf C7 C nf L9 C R9 R R R 7p C R8 R8 R R 7p L7 L uh C9 nf C nf L uh L uh C8 nf C7 nf L uh C nf R7 R C 7nF R R C nf C nf R R C9 7nF R R C nf L+ C nf C nf L- R+ C nf C nf R- C nf JP C9 nf JP MONO C8 nf JP9 C7 nf R SE_L JP JP SE_R + C 7uF/V + C 7uF/V + C 7uF/V + C 7uF/V bead Figure : ISAP Application Schematic BILL OF MATERIALS Name Symbol Description Qty Supplier Part No. Amplifier U Digital Audio Amplifier ISSI ISAP A/D Converter U Multi-bit audio A/D Converter CIRRUS LOGIC C Buck U Buck DC to DC Converter XLSEMI XL9 LDO U.VDropout voltage Regulator AMS AMS7 Capacitor Capacitor Capacitor C,C,C,C, C,C,C7, C8,C9,C C,C,C,C, C7,C9,C, C,C,C9 CAP,nF,V,±%,SMD Yageo CCKKX7R9BB CAP,µF,V,±%,SMD Yageo CCKKX7R9BB C7,C9,C,C, C,C,C8,C, CAP,.µF,V,±%,SMD C,C,C,C8, Yageo CCKKX7R9BB C,C,C,C7 Capacitor C,C8,C CAP,µF,V,±%,SMD Yageo CCKKX7R8BB Integrated Silicon Solution, Inc. Rev. B, //

5 ISAP IS W STEREO/ W MONO DIGITAL AUDIO AMPLIFIER WITH BANDS EQ FUNCTIONS, DRC AND.CH MODE BILL OF MATERIALS (CONTINUE) Name Symbol Description Qty Supplier Part No. Capacitor C7,C,C, C,C,C 7uF,V,±%,IND SAM YOUNG Capacitor C,C,C,C8 CAP,7pF,V,±%,SMD Yageo CCKKX7R9BB7 Capacitor C9,C CAP,.7µF,V,±%,SMD Yageo CC8KKX7R9BB7 Capacitor C,C,C,C CAP,.µF,V,±%,SMD Yageo CC8KKX7R9BB Capacitor C,C7,C8,C9 CAP,.µF,V,±%,SMD Yageo CC8KKX7R9BB Resistor R,R,R RES,K,/W,±%,SMD Yageo RCJR-7KL Resistor Resistor Resistor R8,R8, RADD,RADD R,R,R,R, R,R,R7 R,R9,R,R, RADD,RADD NOT CONNECT RES,R,/W,±%,SMD 7 Yageo RCJR-7KL RES,K,/W,±%,SMD Yageo RCJR-7KL Resistor R,R7 RES,.7K,/W,±%,SMD Yageo RCJR-7K7L Resistor R RES,8K,/W,±%,SMD Yageo RCJR-78KL Resistor R,R RES,M,/W,±%,SMD Yageo RCJR-7ML Resistor R8,R9, R,R RES,R,/W,±%,SMD Yageo RCJR-7RL Resistor R,R,R8,R9 RES,R,/W,±%,SMD Yageo RCJR-7RL Resistor R,R,R,R7 RES,R,/8W,±%,SMD Yageo RCJR-7RL Resistor R,R, RES,K,/W,±%,SMD Yageo RCJR-7KL Resistor R,R,R7,R9 RES,K,/W,±%,SMD Yageo RCJR-7KL Switch S Mini Slide Switch.mm BUTTON S Momentary ON BUTTON SMD Würth Elektronik Inductor L~L µh,±%,isat=8a,rdc=. Würth Elektronik 7779 Inductor L µh,±%,isat=.8a Würth Elektronik 777 Bead L,L~L,8ohm/MHZ,SMD 9 Yageo UPBT-8Y S DIODE D A,V SCHOTTKY Diode SS LED D Diode, LED Red, SMD Everlight 9-7/BHC-ZLMRY/T Oscillator Y mm.mm,,smd Frequency: MHz Transisitor Q Transistor, PNP SMD N9 connector JDC.mm DC Connector Connector J.mm min stereo plug Header JP,JP,JP9,JP,JP,JP,JP pin headers 7 Header JP,JP, JP pin headers Header JP,JP7,JP8,JP pin headers Bill of Materials refers to Figure above. Integrated Silicon Solution, Inc. Rev. B, //

6 ISAP IS W STEREO/ W MONO DIGITAL AUDIO AMPLIFIER WITH BANDS EQ FUNCTIONS, DRC AND.CH MODE Integrated Silicon Solution, Inc. Rev. B, // Figure : Board Component Placement Guide - Top Layer Figure : Board PCB Layout - Top Layer

7 ISAP IS W STEREO/ W MONO DIGITAL AUDIO AMPLIFIER WITH BANDS EQ FUNCTIONS, DRC AND.CH MODE Integrated Silicon Solution, Inc. 7 Rev. B, // Figure : Board PCB Layout - Mid Layer Figure : Board PCB Layout - Mid Layer

8 ISAP IS W STEREO/ W MONO DIGITAL AUDIO AMPLIFIER WITH BANDS EQ FUNCTIONS, DRC AND.CH MODE Figure 7: Board PCB Layout - Bottom Layer Figure 8: Board PCB Layout - Bottom Layer Copyright Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that: a.) the risk of injury or damage has been minimized; b.) the user assume all such risks; and c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances Integrated Silicon Solution, Inc. 8 Rev. B, //