IS31AP4833 TREBLE AND BASS CONTROL WITH 3D ENHANCEMENT AUDIO POWER AMPLIFIER DESCRIPTION The IS31AP4833 is a treble and bass control with 3D enhancement audio power driver. The IS31AP4833 provides tone (bass and treble) controls and volume control as well as a stereo audio power amplifier capable of delivering 2.8W into 4Ω with less than 10% THD with a 5V supply. ABSOLUTE MAXIMUM RATINGS ≤ 5.5V power supply FEATURES RECOMMENDED EQUIPMENT 5.0V, 2A power supply Audio source (i.e. MP3 player, Notebook PC, etc.) A pair speakers (4Ω or 8Ω) Headphone (32Ω) 3.0V to 5.5V supply Mute control Treble and bass control Independent volume control for two channels Stereo input MUX I2C control interface 3D enhancement Thermal shutdown protection Click-and-pop suppression TQFP-48 (7mm×7mm) package Caution: Do not exceed the conditions listed above; otherw ise the board will be damaged. PROCEDURE The IS31AP4833 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. 1) QUICK START 2) 3) 4) Figure 1: Photo of IS31AP4833 Evaluation Board 5) 6) Connect a pair 4Ω (or 8Ω) speakers across the (OUTR+, OUTR-) terminals and (OUTL+, OUTL-) terminals. Or connect speakers to the connector (OUTR, OUTL) or connect headphone (32Ω) to the connector (HEADPHONE). Connect the ground terminal of the power supply to the GND and the positive terminal to the VCC. Or connect DC power to connector (DC IN). If the audio sources are stereo, connect the audio sources to one of the three inputs (SE AUDIO INPUT1~ SE AUDIO INPUT3), or connect audio source to the audio connector (3.5mm) .and press one of the three buttons (K1~K3) to select input. If the audio sources are differential, connect to the audio sources to (INL+, INL-) terminals (left channel) and (INR+, INR-) terminals (right channel).and press button K4 to select the differential input. Turn on the power supply. Turn on the audio sources ORDERING INFORMATION Part No. Temperature Range Package IS31AP4833-TQLS2-EB -40°C to +85°C (Industrial) TQFP-48, Lead-free Table 1: Ordering Information For pricing, delivery, and ordering information, please contacts ISSI’s analog marketing team at [email protected] or (408) 969-6600. Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 04/29/2015 1 IS31AP4833 TREBLE AND BASS CONTROL WITH 3D ENHANCEMENT AUDIO POWER AMPLIFIER PERFORMANCE DESCRIPTION IS31AP4833 demo board has 14 buttons to control various functions: 1) KEY14 button control chip enabled. When D6 point in the open, press the button to switch to shut down at the same time D6 is off. The power-on defaults for the chip is turned on. 2) KEY13 button controls chip 3D enabled. D5 light is turned on and press the button to switch to shut down while D5 is off. The power-on default closed for the 3D. 3) KEY1~KEY4 selected as the input source, corresponding to the SE AUDIO INPUT1 ~ 3 DIFF AUDIO INPUT, the button is pressed for a valid audio input, the corresponding LED will be lit. Power-on default INPUT1. 4) KEY5, KEY6 is audio input gain adjustment. The top of the digital display gain and negative gain, D7 lights. Gain control range of -15dB ~ +6dB. KEY5 to increase the gain while KEY6 to reduce the gain. The power-on default gain setting is +3dB. 5) KEY7, KEY8 is to adjust the volume of the left and right channels. The same Display method which shown as above. Gain control range of -42dB ~ +12dB. KEY7 to increase the gain setting while Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 04/29/2015 KEY8, to reduce the gain setting. The power-on default setting is -12dB. 6) KEY9, KEY10 is for bass gain adjustment. The same display method which shown as above. Gain control range of-12dB ~ +12 dB. KEY9 for increase the gain setting while KEY10, to reduce the gain setting. The power-on default is +0dB. 7) KEY11, KEY12 is for treble gain adjustment. The same display method which shown as above. Gain control range of -12dB ~ +12dB. KEY11 for increase the gain setting while the KEY12 to reduce the gain setting. The power-on default is +0dB. 8) Other detailed settings please refer to the IS31AP4833 user guide instructions. Note: IS31AP4833 solely controls the Audio function on the evaluation board. SOFTWARE SUPPORT Please refer to the integrated program. Note: Please refer to the datasheet to get more information about IS31AP4833. 2 IS31AP4833 TREBLE AND BASS CONTROL WITH 3D ENHANCEMENT AUDIO POWER AMPLIFIER P0.7 DIG4 KEY4 C8 DIG3 C7 C6 DIG2 C5 C4 DIG1 C3 A2 KEY3 6 K13 a b c d e f g DP A1 K9 7 8 3 2 1 10 4 5 9 K5 Treble(dB) R1 R2 R3 R4 R5 R6 R7 R8 A2 K4 KEY2 a b c d e f g DP 6 K14 7 8 3 2 1 10 4 5 A1 K10 Bass(dB) R1 R2 R3 R4 R5 R6 R7 R8 9 K6 a b c d e f g DP A2 K3 7 8 3 2 1 10 4 5 6 K11 Volume(dB) R1 R2 R3 R4 R5 R6 R7 R8 A2 K7 a b c d e f g DP 6 K2 7 8 3 2 1 10 4 5 A1 Gain(dB) R1 R2 R3 R4 R5 R6 R7 R8 KEY1 9 P0.6 K12 A1 K8 9 P0.5 P0.4 K1 C2 C1 VCC D1 TP1 CON1 DC IN D4 D5 D6 D7 D8 D9 D10 U4 VCC 11 R14 1K TP2 CON8 5 4 3 2 1 VCC GND SDB1 SCL1 SDA1 VCC TP17 3V P0.5 P0.4 RESET GND R15 R21 R16 R13 R12 R17 R18 R19 R20 1K 1K 1K 1K 1K 1K 1K 1K 1K LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED8 LED9 LED10 5 4 3 2 1 U3 CON9 GND TP18 5 4 3 2 1 D3 VDD CON11 C1 10uF 5 4 3 2 1 D2 VCC GND 1 SCL 2 RST 3 SDA 4 ICP KEY4 KEY3 KEY2 KEY1 P0.4 P0.5 P0.6 P0.7 3 26 25 24 23 22 20 19 LED2 LED1 LED9 SCL1 SDA1 RESET SDB LED3 18 17 12 11 10 6 5 4 P0.0/CMP2/KBI0/AD01 P2.0/ICB/DAC0/AD03 P0.1/CIN2B/KBI1/AD10 P2.1/OCD/AD02 P0.2/CIN2A/KBI2/AD11 P2.2/MOSI P0.3/CIN1B/KBI3/AD12 P2.3/MISO P0.4/CIN1A/KBI4/DAC1/AD13 P2.4/SS P0.5/CMPREF/KBI5 P2.5/SPICLK P0.6/CMP1/KBI6 P2.6/OCA P0.7/T1/KBI7 P2.7/ICA P1.0/TXD P1.1/RXD P1.2/T0/SCL P1.3/INT0/SDA P1.4/INT1 P1.5/RST P1.6/OCB P1.7/OCC/AD00 P3.0XTAL2/CLKOUT P3.1/XTAL1 1 2 13 14 15 16 27 28 VSS C26 10uF C2 C4 C5 VCC C6 R22 100K SDA1 9 3D_EN 8 RST R23 4.7K R24 4.7K C7 1 SCL1 2 SDB1 3 CON10 5 4 3 2 1 21 C23 1uF 7 SCL R8/C9 SDB R7/C10 R5 4 5 VCC C28 0.1uF IN C_FILT R4 R3 6 AD R2 20 R1 2.7K C8 R6/C11 C29 0.22uF C5 2.2nF SDA GND LPC936 C6 2.2nF C1 C27 0.1uF C3 SDA SCL LED8 LED7 LED6 LED5 LED4 LED10 3V VDD GND SDB1 SCL1 SDA1 VCC GND R1 C9 68nF 24 C1 23 C2 22 C3 21 C4 19 C5 18 C6 17 C7 16 C8 15 R8 14 R7 13 R6 12 R5 10 R4 9 R3 8 R2 7 R1 3V 18,19 INL1 TP6 INR1 TP5 INL2 INR2 INL3 48 37 46 39 TP10 TP12 TP11 INR+ INRINL+ INL- 41 45 44 3DN 22 23 3DP LIL 10 11 TOL 4 R5 4.7K SCL 17 21 14 RST 3D_EN SDB VCC U2 1 3 3V VDD SD VOUT GND BP 5 C20 1uF C21 10nF 2 R4 100K C22 1uF 4 LDO TP15 TP16 OUTL- OUTL+ INL2 INR2 OUTL+ INL3 OUTL- 5 CON7 9 R9 100R + C25 22uF R8 100R + C24 22uF R11 1K VCC INR3 HP 40 25 INR1 INR+ OUTR- INR- OUTR+ INL+ BYPASS INLIS31AP4833 C8 2.2nF LIR TP9 R6 4.7K SDA INL1 TP7 C16 0.22uF C17 0.22uF C19 0.22uF C18 0.22uF 12 C7 2.2nF AGND R3 20 100K R2 100K 28 CON5 R10 1K CON6 HEAD PHONE 32 15 42,43 TP14 TP13 C4 OUTR- OUTR+ 1uF 27 INR3 INR3 1 36 TOR INL3 TP8 RST 3D_EN SDB 26 CON4 SE AUDIO INPUT3 SCL TIR INR2 C11 0.22uF C10 0.22uF C13 0.22uF C12 0.22uF C15 0.22uF C14 0.22uF R7 4.7K SDA PGND 33 INL2 C2 1uF VCC VCC LOR CON3 SE AUDIO INPUT2 C3 1uF TP3 7 30 34 INR1 VCC TP4 TIL U1 INL1 LOL CON2 SE AUDIO INPUT1 3 IS31FL3728 Figure 2: IS31AP4833 Application Schematic Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 04/29/2015 3 IS31AP4833 TREBLE AND BASS CONTROL WITH 3D ENHANCEMENT AUDIO POWER AMPLIFIER BILL OF MATERIALS Name Symbol Audio Amplifier U1 LDO Description Qty Supplier Part No. Class-AB audio amplifier 1 ISSI IS31AP4833 U2 Low-dropout regulator 1 PAM PAM3101 MCU U3 Microcontroller 1 NXP LPC936 LED Driver U4 Array LED driver 1 ISSI IS31FL3728 Displayer DIG1~DIG4 Dual digit display common cathode 4 ZSO 2281AS LED D1~D6 Diode,LED Blue,SMD 6 Everlight 19-217/BHC-ZL1M2RY/3T LED D7~D10 Diode,LED Red,SMD 4 Everlight 19-217/BHC-ZL1M2RY/3T Resistor R1 RES,2.7k,1/16W,±5%,SMD 1 Yageo RC0603JR-072K7L Resistor R2~R4,R22 RES,100k,1/16W,±5%,SMD 4 Yageo RC0603JR-07100KL Resistor R5~R7, R23,R24 RES,4.7k,1/16W,±5%,SMD 5 Yageo RC0603JR-074K7L Resistor R8,R9 RES,100R,1/16W,±5%,SMD 2 Yageo RC0603JR-07100RL Resistor R10~R21 RES,1k,1/16W,±5%,SMD 12 Yageo RC0603JR-071KL Capacitor C1,C26 CAP,10µF,10V,±10%,SMD 2 Yageo CC0805KKX7R6BB106 Capacitor C2,C3,C4, C15,C17,C23 CAP,1µF,50V,±10%,SMD 6 Yageo CC0603KKX7R9BB105 Capacitor C5,C6,C7,C8 CAP,2.2nF,16V,±10%,SMD 4 Yageo CC0603KKX7R9BB222 Capacitor C9 CAP,68nF,50V,±10%,SMD 1 Yageo CC0603KKX7R9BB683 Capacitor C10~C19,C29 CAP,0.22µF,50V,±10%,SMD 11 Yageo CC0603KKX7R9BB224 Capacitor C21 CAP,10nF,50V,±10%,SMD 1 Yageo CC0603KKX7R9BB103 Capacitor C20,C22 CAP,0.1µF,50V,±10%,SMD 2 Yageo CC0805KKX7R9BB104 Capacitor C27,C28 CAP,0.1µF,50V,±10%,SMD 2 Yageo CC0603KKX7R9BB104 Capacitor C24,C25 CAP,22µF,10V,±10%,SMD 2 Button K1~K14 Button SMD 14 Connector CON1 2.5mm DC connector 1 Connector CON5,CON7 RCA -type connector 2 Connector CON2~CON4, CON6 3.5mm min connector 4 Bill of Materials, refers to Figure 2 above. Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 04/29/2015 4 IS31AP4833 TREBLE AND BASS CONTROL WITH 3D ENHANCEMENT AUDIO POWER AMPLIFIER 0 0 2 2 1 1 2 1 2 2 1 2 2 1 1 2 1 2 2 1 2 1 2 8 8 3 0 3 1 2 1 2 4 5 6 1 2 7 8 3 9 3 3 3 3 3 3 3 3 3 3 3 9 9 3 3 7 8 8 8 1 1 2 1 2 1 2 1 2 1 2 2 1 0 2 0 5 5 10 9 8 7 6 10 9 8 7 6 10 9 8 7 6 10 9 8 7 6 4 4 1 3 2 3 2 2 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 1 Figure 3: Board Component Placement Guide - Top Layer Figure 4: Board PCB Layout - Top Layer Integrated Silicon Solution, Inc. – www.issi.com Rev. B, 04/29/2015 5 IS31AP4833 TREBLE AND BASS CONTROL WITH 3D ENHANCEMENT AUDIO POWER AMPLIFIER 0 0 2 2 1 1 2 1 2 2 1 2 2 1 1 2 1 2 2 1 2 1 2 8 8 3 0 3 1 2 1 2 4 5 6 1 2 7 8 3 9 3 3 3 3 3 3 3 3 3 3 3 9 9 3 3 7 8 8 8 1 1 2 1 2 1 2 1 2 1 2 2 1 0 2 0 5 5 10 9 8 7 6 10 9 8 7 6 10 9 8 7 6 10 9 8 7 6 4 4 1 2 3 3 2 2 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 1 Figure 5: Board Component Placement Guide - Bottom Layer Figure 6: Board PCB Layout - Bottom Layer Copyright © 2015 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. – www.issi.com Rev. B, 04/29/2015 6