IS31FL3732 AUDIO MODULATED MATRIX LED DRIVER IS31FL3732 IC DESCRIPTION RECOMMENDED EQUIPMENT The IS31FL3732 is a compact LED driver for 144 single LEDs. The device can be programmed via an I2C compatible interface. Additionally each of the 144 LEDs can be dimmed individually with 8-bit allowing 256 steps of linear dimming. To reduce CPU usage up to 8 frames can be stored with individual time delays between frames to play small animations automatically. LED frames can be modulated with audio signal. ABSOLUTE MAXIMUM RATINGS ≤ 5.5V power supply Caution: Do not exceed the conditions listed above, otherwise the board will be damaged. IS31FL3732 IC FEATURES 5.0V, 2A power supply (Board supply voltage should be 4.5V~5.5V) Audio source, 3.5mm input jack (i.e. MP3 player, Notebook PC, etc) 8Ω speaker (on board or external) Supply voltage range from 2.7V to 5.5V 8 frames memory for animations Picture mode and animation mode Auto intensity breathing during the switching of different frames LED frames displayed can be modulated with audio signal intensity LED light intensity can be modulated with audio signal intensity QFN-40 (5mm × 5mm) package QUICK START PROCEDURE The IS31FL3732 evaluation 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) 2) 3) Connect an 8Ω speaker to the “SPK” connector. (If an on board speaker is not provided). Connect the audio source to the “AUDIO IN” connector. Connect the DC power to the connector (DC IN) or connect the power input to micro-USB jack (CON4). It is recommended to use a 5V/2A USB power source if you use the audio amplifier on the board. Caution: Only one supply can be on at one time otherwise risk damage to power supply. 4) 5) 6) Turn on/connect to the power supply. Turn on the audio signal. Adjust the audio source volume level for optimum evaluation board performance in equalizer mode 7. Figure 1: Photo of IS31FL3732 Evaluation Board ORDERING INFORMATION Part No. Temperature Range Package IS31FL3732-QFLS2-EB -40°C to +85°C (Industrial) QFN-40, 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. A, 06/03/2015 1 IS31FL3732 AUDIO MODULATED MATRIX LED DRIVER EVALUATION BOARD OPERATION The IS31FL3732 evaluation board comes preprogrammed with eight animation display sequences. Press the MODE button (K1) to cycle between the following animation sequences: Firework animation Lighting animation Power-on animation Water drop animation Static graphics breathe dimming effect Triangular music bar effect: more triangular music bars are displayed with stronger music. 7) Equalizer bar effect: EQ bars move up and down with music. 8) Multiple graphics display: different graphics change with music rhythm. 1) 2) 3) 4) 5) 6) threshold based on the voltage on the VIO pin. An external VIO voltage in the range of 1.8V≤VIO≤VCC can be applied after removing (open) the JP2 jumper. The board comes with JP2 default setting closed (short). If it is set to open, the user can connect an external VIO voltage supply to TP3, the external VIO voltage is recommended to equal to ex-IIC’s high logic. Caution: If JP2 is closed (shorted), user can’t connect the user’s MCU VCC to VIO directly, otherwise the user’s MCU (maybe 3.3V) will connect to evaluation bard’s VCC (4.5V~5V) and maybe damaged. Jumper Setting Switch SOFTWARE CONTROL JP1 default setting is closed (short). If it is set to open, the on-board MCU will set its I2C pins to High Impedance (open-drain). With JP1 open, the evaluation board can be driven by external I2C signals connected to TP3 to control the IS31FL3732 LED driver. The IS31FL3732 can set its I2C bus interface logic Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 06/03/2015 Open The I2C interface is set to a high impedance state for external I2C control via TP3. Short The on board MCU controls the IS31FL3732. Open External DC voltage in range of 1.8V≤VIO≤VCC provides I2C logic threshold. Short The VIO=VCC. JP1 Note: IS31FL3732 solely controls the FxLED function on the evaluation board. JP2 (Note) Operation Table 2: Jumper Table Note: The VIO voltage should be in the range of 1.8V≤VIO≤VCC. The VIO value should equal the micro’s VOH value. For example, if micro VOH=1.8V, then the IS31FL3732 VIO should be set to 1.8V. 2 IS31FL3732 AUDIO MODULATED MATRIX LED DRIVER CA1 CB1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 D1 D16 CA2 CB2 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 D32 D17 CA3 CB3 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 D48 D33 CA4 CB4 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 D64 D49 CA5 CB5 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 D80 D65 CA6 CB6 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 D96 D81 CA7 CB7 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 D112 D97 CA8 CB8 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 D128 D113 CA9 CB9 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 D129 D144 VCC R1 100K K1 U2 VCC 1 2 3 4 5 6 7 8 9 10 11 C1 1uF RXD R2 10K TXD INTB JP1 44 43 42 41 40 39 38 37 36 35 34 P1.4 P1.2 P1.1 P1.0 RST RXD TXD INT0 INT1 VDD VCC MODE SDA SCL SDB VCC C2 1uF C4 1uF C6 1uF C3 0.1uf U1 1 20 CA1 CA2 CA3 CA4 CA5 CA6 CA7 CA8 CA9 C5 0.1uf 4 C7 1uF PVCC PVCC VCC C8 0.1uf OPEN=EXT CTRL STC12C5A60S2 26 C10 1uF C9 14 12 13 16 17 15 18 19 20 21 22 33p Y1 C12 12MHZ 33p 33 32 31 30 29 28 27 26 25 24 23 XTAL2 GND XTAL1 TP3 TP1 CON1 DC IN VIO SDB SCL SDA INTB SYNC GND VCC C15 1uF TP2 CON2 AUDIO IN VCC TXD RXD GND GND 5 4 3 2 1 C16 4 IN- VO1 VCC 6 1 C17 1uF JP2 VIO VCC R7 100K 1 2 7 C14 6 0.22uF 5 21 22 25 SYNC 30 7 8 9 31 VO2 VDD SD IN+ BYPASS GND VIO R_EXT C_FILT IN ADDR2 ADDR1 INTB SDA SCL SDB CB1 CB2 CB3 CB4 CB5 CB6 CB7 CB8 CB9 SYNC GND GND GND GND CA1 CA2 CA3 CA4 CA5 CA6 CA7 CA8 CA9 2 3 10 28 29 C13 24 0.1uF 23 11 12 13 14 15 16 17 18 19 R6 20K CB1 CB2 CB3 CB4 CB5 CB6 CB7 CB8 CB9 IS31FL3732 U3 R9 20K 0.22uF Audio In ISP R8 39K Audio In C19 VIO 27 0.1uF INTB SDA SCL SDB TP4 1 2 3 4 5 6 7 C11 0.1uf VIO R3 R4 R5 4.7K 4.7K 4.7K NC NC NC AVCC 32 33 34 35 36 37 38 39 40 R11 NC / 0R 5 ex-Speaker CON3 SPK CON4 8 3 R10 0R / NC 2 VCC V+ GND 1 2 3 4 5 USB C18 1uF on board Speaker IS31AP4991 Figure 2: IS31FL3732 Application Schematic Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 06/03/2015 3 IS31FL3732 AUDIO MODULATED MATRIX LED DRIVER BILL OF MATERIALS Name Symbol LED Driver U1 MCU Description Qty Supplier Part No. Matrix LED Driver 1 ISSI IS31FL3732 U2 Microcontroller 1 STC STC12C5A60S2 Audio Amplifier U3 Class- AB Audio Amplifier 1 ISSI IS31AP4991 Diode D1~D144 Diode, LED Blue, SMD 144 Everlight 9-217/BHC-ZL1M2RY/3T Crystal Y1 Crystal,12MHz,HC-49S 1 Resistor R6,R9 RES,20k,1/16W,±5%,SMD 2 Yageo RC0603JR-0720KL Resistor R10,R11 RES,0R,1/16W,±5%,SMD or NC 2 Yageo RC0603JR-00000L Resistor R3,R4,R5 RES,4.7k,1/16W,±5%,SMD 3 Yageo RC0603JR-074K7L Resistor R1,R7 RES,100k,1/16W,±5%,SMD 2 Yageo RC0603JR-07100KL Resistor R2 RES,10k,1/16W,±5%,SMD 1 Yageo RC0603JR-0710KL Resistor R8 RES,39k,1/16W,±5%,SMD 1 Yageo RC0603JR-0739KL Capacitor C1,C2,C4,C6, C7,C10,C15, C17,C18 CAP,1µF,16V,±20%,SMD 9 Yageo CC0603KKX7R9BB105 Capacitor C9,C12 CAP,33pF,16V, ±20%,SMD 2 Yageo CC0603KKX7R9BB330 Capacitor C3,C5,C8, C11,C13,C19 CAP,0.1µF,16V,±20%,SMD 6 Yageo CC0603KKX7R9BB104 Capacitor C14,C16 CAP,0.22µF,16V,±20%, SMD 2 Yageo CC0603KKX7R9BB224 8Ω speaker, if provided, R10=0Ω and R11=Null, if not provided, R10=Null and R11=0Ω 1 Button SMD 1 Onboard Speaker (If provided) SPK1 Button K1 Jumper JP1,JP2 Power Connecter CON1 Evaluation board VCC supply 1 Audio Connector CON2 3.5mm Audio Input 1 RCA Connector CON3 Ext-speaker 1 USB CON4 Evaluation board VCC supply 1 2 Bill of Materials, refer to Figure 2 above. Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 06/03/2015 4 IS31FL3732 AUDIO MODULATED MATRIX LED DRIVER Figure 3: Board Component Placement Guide - Top Layer Figure 4: Board PCB Layout - Top Layer Integrated Silicon Solution, Inc. – www.issi.com Rev. A, 06/03/2015 5 IS31FL3732 AUDIO MODULATED MATRIX LED DRIVER 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. A, 06/03/2015 6