EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Introduction The AAT2469/AAT2499 evaluation board is a hardware platform to evaluate the functions of the AAT2469 and AAT2499 devices. The AAT2469 is a dedicated TVLiteTM control IC for the AAT2499 TVLiteTM LED driver, which is a highly integrated two channel LED driver. The AAT2469 and AAT2499 operate over a common 4.5V to 5.5V range. The LED input voltage range, VLED, is determined by the highest VF (LED Forward Voltage) multiplied by the number of LEDs in a given string. The maximum VLED is limited to the AAT2499 BVDSS spec of 150V. The maximum VLED must be less than 150V to avoid damage to the AAT2499s on the demo board. The AAT2499 CSFBI input and CSFBO output provide a necessary feedback route when cascading multiple AAT2499s to provide a single voltage mode feedback for the AAT2469. The AAT2469 ICSFB provides a current mode feedback for a third party system power supply. Each current sink in the AAT2499 is programmable via the serial shift interface. The serial shift interface is controlled by the AAT2469. An AAT2469 can control up to 8 AAT2499s, or a total of 16 current sinks. The AAT2469 captures the current sink data via the SPI interface. Then the data is converted and is sent out to the AAT2499s via the serial shift interface. The speed of the serial shift interface is the same as the GSLCK frequency applied to the AAT2469. Full scale LED current is programmed using an external resistor on the AAT2499 RSET pin. The LED current can be scaled linearly from minimum to maximum setting current with the VREF input voltage. The AAT2469 supplies this VREF voltage that is controlled by the DOT correction register in the AAT2469 with 8-bit resolution. Both phase delay and grayscale clock (GS Clock) PWM on-time are user programmable with 12-bit resolution for each current sink bank. Timing and synchronization are determined by externally applied VSYNC and GSCLK signals. The AAT2469 is available in a standard SOP16 package. The AAT2499 is available in a standard SOP16 or SOP16-EP package. More details on the AAT2469 and AAT2499 can be found in the product datasheets. This document will cover the board schematic, layout guidelines and setup of a few key configuration registers to demonstrate the AAT2469 and AAT2499 driving LED strings with different brightness levels. The document includes scope shots to show the corresponding relationships between related waveforms. Evaluation Board Picture Figure 1: AAT2469/AAT2499 Evaluation Board Picture. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 1 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Board Schematic AATI USB Module 1 ADDR CSB_uC 9 0 10 GND 0 C20 Cap DNP C21 Cap DNP 11 12 P3.4 GND P3.3 GSCLK P3.2 VSYNC P3.1 P1.3 P3.0 GND 13 AAT2469 GND GND CSB 9 0 R18 P3.5 SCL P2.7 10 GSCLK SDA P2.6 ADDR R13 C9 Cap 0.1uF 8 36 35 34 5V 33 32 31 30 29 28 27 26 25 24 CSB VSYNC C11 Cap DNP VREF 11 7 R17 P2.5 SDI 12 6 VSYNC 23 8 GND VIN P3.6 21 7 VREF SCLK SO_8 13 CSB 22 SDI VSYNC SC 14 5 P2.2 6 VIN CSB_uC P2.4 5 SCLK SI SO GSCLK P2.3 SC ICSFB 15 P3.7 20 GND SCLK_uC R11 0 SDI_uC R12 0 4 GSCLK SDI P2.1 C23 DNP 3 EN CSFBI 4 19 C22 2.2uF ICSFB SI_2469 SDO SDI_uC 5V P2.0 10k 2 EN 3V SDO 18 Diode 1N4148 D2 CSFBO_8 16 GND SCLK P1.5 R23 DNP GND R21 1 GND 17 0 SDO 3 P1.4 C24 DNP R10 2 SDO_uC 16 SDO_uC SCLK_uC GND DNP U9 15 DNP D3 14 TP30 FB-I R22 USB Module 3 4 VIN 5 CSFBO_1 6 7 CS15 8 SI VSYNC VREF GSCLK RSET VIN AGND CSFBO CSFBI SGND SGND LED_A LED_B FLT 15 SI_2469 14 VREF 13 RSET1 6.04k 12 11 R1 C12 Cap DNP C4 Cap 0.1uF CSFBI 10 9 CS16 GND GND SC 1 SO_4 2 VSYNC 3 GSCLK 4 VIN 5 CSFBO_4 6 7 CS9 8 SC FLT SO SI VSYNC VREF GSCLK RSET VIN AGND CSFBO CSFBI SGND SGND LED_A LED_B 0 GND SO 16 16 FLT 15 SO_3 14 VREF 13 RSET4 SO_7 C15 Cap DNP R4 6.04k 12 11 SC C7 Cap 0.1uF CSFBO_3 10 9 CS10 GND 2 VSYNC 3 GSCLK 4 VIN 5 CSFBO_7 6 7 CS3 GND 1 8 SC AAT2499 AAT2499 GND FLT SO SI VSYNC VREF GSCLK RSET VIN AGND CSFBO CSFBI SGND SGND LED_A LED_B EP 2 GSCLK FLT 16 FLT 15 SO_6 14 VREF 13 RSET7 6.04k 12 11 R7 C18 Cap DNP CSFBO_6 10 9 TP1 CS1 GND TP3 CS3 AAT2499 GND GND TP4 CS4 TP5 CS5 GSCLK 4 VIN 5 CSFBO_2 6 7 CS13 8 VSYNC VREF GSCLK RSET VIN AGND CSFBO CSFBI SGND SGND LED_A LED_B 16 FLT SC 1 15 SO_1 SO_5 2 14 VREF VSYNC 3 13 RSET2 GSCLK 4 VIN 5 CSFBO_5 6 11 R2 6.04k 12 C13 Cap DNP C5 Cap 0.1uF CSFBO_1 10 9 CS14 GND GND 7 CS7 8 U8 SC FLT SO SI VSYNC VREF GSCLK RSET VIN AGND CSFBO CSFBI SGND SGND LED_A LED_B 0 GND SI 16 FLT SC 1 15 SO_4 SO_8 2 14 VREF VSYNC 3 13 RSET5 GSCLK 4 VIN 5 CSFBO_8 6 11 C16 Cap DNP R5 6.04k 12 C8 Cap 0.1uF CSFBO_4 10 9 CS8 GND GND 7 CS1 8 SC FLT SO SI VSYNC VREF GSCLK RSET VIN AGND CSFBO CSFBI SGND SGND LED_A LED_B AAT2499 AAT2499 GND EP 3 FLT SO TP6 CS6 16 FLT TP7 CS7 15 SO_7 14 VREF 13 RSET8 11 R8 6.04k 12 C19 Cap DNP 10 9 CS2 TP8 CS8 TP9 CS9 CSFBO_7 GND TP10 CS10 TP11 CS11 0 VSYNC U5 SC 0 2 EP C2 Cap 0.1uF 1 SO_2 EP U2 SC AAT2499 GND GND TP12 CS12 TP13 CS13 3 GSCLK 4 VIN 5 CSFBO_3 6 7 CS11 8 SO SI VSYNC VREF GSCLK RSET VIN AGND CSFBO CSFBI SGND SGND LED_A LED_B 16 FLT SC 1 15 SO_2 SO_6 2 14 VREF VSYNC 3 13 RSET3 GSCLK 4 VIN 5 CSFBO_6 6 11 R3 6.04k 12 C14 Cap DNP C6 Cap 0.1uF CSFBO_2 10 9 CS12 GND GND 7 CS5 8 SC FLT SO SI VSYNC VREF GSCLK RSET VIN AGND CSFBO CSFBI SGND SGND LED_A LED_B 16 FLT 15 SO_5 14 VREF 13 RSET6 11 TP15 CS15 C17 Cap DNP R6 6.04k 12 TP16 CS16 TP18 VIN CS1 TP19 CSFBO CS2 TP20 ICSFB CS3 TP21 VREF CS4 TP22 SDI CS5 TP23 SCLK CS6 TP24 CSB CS7 TP25 SDO CS8 TP26 SC CS9 TP27 SO_2469 CS10 TP28 SI_2469 CS11 TP29 FLT CS12 TP31 VSYNC CS13 TP32 GSCLK CS14 TP33 SO_1 CS15 CSFBO_5 CS6 GND 1 3 5 7 9 CSB_uC SDI_uC 2 4 6 8 10 SDO_uC GND SCLK_uC Header 5X2 TP17 VLED VIN SDI VIN DNP JP1 1 3 ADDR GND 2 4 AAT2499 GND VIN EN CSFBO_8 JP2 1 2 ENABLE CSFBI VIN ICSFB JP3 1 2 CSFBI to VIN VREF 5V VIN JP4 1 2 USB 5V to VIN SDI SCLK CSB SCLK SDO R36 SC DNP SDI SC R35 SI_2469 DNP R36 and R35 are for AAT2499 tes t setup. SI_2469 SO_8 FLT R14 D1 2k Red LED VIN VSYNC GSCLK SO_1 TP37 GND TP38 GND TP39 GND TP34 GND GND GND AAT2499 GND GND Figure 2: AAT2469/AAT2499 Evaluation Board Schematic. Printed Circuit Board Specification Symbol VIN VLED fVSYNC fGSCLK fSCLK TA TJ Parameter Input Voltage Range VLED Voltage Range VSYNC Frequency GSCLK Frequency SPI Clock Frequency Ambient Temperature Range Operating Junction Temperature Range Min 4.5 55 1024 VSYNC -40 -40 Typ Max 5.5 150 1000 4M 15 85 150 Table 1: AAT2469/AAT2499 Evaluation Board Specifications. 2 C25 DNP ADDR C10 TP36 GND CS16 10 9 P2 GND CS2 CS4 CS6 CS8 CS10 CS12 CS14 CS16 VLED 2 4 6 8 10 12 14 16 18 20 0 2 FLT 0 GND SO_3 VSYNC TP14 CS14 U6 SC EP C3 Cap 0.1uF 1 EP U3 SC 1 3 5 7 9 11 13 15 17 19 Header 10X2 TP2 CS2 CS4 0 SO_1 VSYNC SC GND CS1 CS3 CS5 CS7 CS9 CS11 CS13 CS15 VLED U7 0 1 EP C1 Cap 0.1uF SC U4 EP U1 P1 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 Units V Hz MHz °C TP35 GND EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Figure 3: Connection between the LED and the Evaluation Board through a Ribbon Cable. Getting Started Setup 1. Connect an input power source (to supply voltage between 4.5V and 5.5V) between VIN and the ground. The VIN can be powered by the 5V from the USB port when using the Skyworks USB Module. Simply connect JP4 jumper to use the 5V from the USB port to power VIN. 2. If using the Skyworks USB Module, connect the USB Module to the USB Module connector on the AAT2469/AAT2499 demo board. Otherwise, connect frequency generators to apply between 55Hz to 1kHz to VSYNC and the appropriate frequency to GSCLK whose leading edge is synchronized to VSYNC. Apply a frequency with a minimum of 4096 VSYNC frequency to GSCLK. Refer to the AAT2469 and AAT2499 product datasheet to determine the correct GSCLK frequency for the application operating condition. Connect SPI interface on P2. 3. Apply VLED. If VLED is in closed-loop operation and is applied from a third party SMPS converter, connect the FB-I with current mode to the feedback input of the third party SMPS converter. Calculate resistor R3 value for desired VLED level. If using an Skyworks boost converter, connect the CSFBO to the feedback input of the Skyworks boost converter. 4. Set ADDR jumper to desired address setting for the AAT2469. 5. Connect JP1 jumper to ON to enable the AAT2469. 6. Connect LED strings to P1 using information provided in Table 2. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 3 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Pin 1 2 3 4 5 6 7 8 9 10 Description GND GND Current Current Current Current Current Current Current Current Sink Sink Sink Sink Sink Sink Sink Sink 1 2 3 4 5 6 7 8 Pin 11 12 13 14 15 16 17 18 19 20 Description Current Current Current Current Current Current Current Current VLED VLED Sink Sink Sink Sink Sink Sink Sink Sink 9 10 11 12 13 14 15 16 Table 2: P1 LED Pinout Configuration. Functional Test and Evaluation RSET and DOT Register The RSET resistors, R1 to R8, on the AAT2499s are 6.04kΩ, and set the maximum full scale LED current to 101.72mA. The AAT2469 provides a VREF output, which is controlled by the DOT register with 256 linear steps between current sink being off and the maximum full scale LED current, to adjust the luminance of the LEDs. Figure 4 shows the LED current and VREF at the full scale setting with DOT register setting as 0xFF. Figure 5 shows the LED current and VREF at the half scale setting with DOT register setting as 0x80. Figure 4: LED Current with DOT = 0xFF, VREF = 3.6V. 4 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control GS Registers The GS registers control the PWM duty cycle of the LED current sinks for adjusting the brightness. Figure 6 shows a LED string running at 50% duty cycle with GS register setting as 0x800. Figure 7 shows a LED string running at 25% duty with GS register setting as 0x400. Figure 8 shows a LED string running at 75% duty cycle with GS register setting as 0xC00. Figure 5: LED Current with DOT = 0x80, VREF = 1.8V. Figure 6: PWM at 50% Duty Cycle with GS = 0x80. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 5 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Figure 7: PWM at 25% Duty Cycle with GS = 0x400. Figure 8: PWM at 25% Duty Cycle with GS = 0xC00. 6 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control DLY Registers The DLY registers set the phase shift from the rising edge of VSYNC to when the current sink PWM cycle begins for each LED current sink. Figure 9 shows a phase shift of 0° with DLY register setting as 0x000. Figure 10 shows a phase shift of 90° with DLY register sets to 0x400. Figure 11 shows a phase shift of 180° with DLY register setting as 0x800. Figure 12 shows a phase shift of 270° with DLY register setting as 0xC00. Figure 13 shows a phase shift of 360° with DLY register setting as 0xFFF. One advantage of using delay is that it allows each current sink to start at different time to reduce the stress on a system power supply. The other advantage is that it can provide a fixed off time in scanning mode when the delay is used in combination with the INVERT function. Figure 9: 0° Phase Shift with DLY = 0x000. Figure 10: 90° Phase Shift with DLY = 0x400. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 7 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Figure 11: 180° phase shift with DLY = 0x800. Figure 12: 270° phase shift with DLY = 0xC00. Figure 13: 360° phase shift with DLY = 0xFFF. 8 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control INVERT Function The INVERT function allows the PWM signal to be inverted. With the INVERT function enabled, a 25% duty cycle (GS = 0x400) will be a 75% duty cycle output, and a 90° delay turn on time (DLY = 0x400) will be a turn on time at 90°. The INVERT function can provide a fixed off time in scanning mode. Figure 14 and 15 show two PWM waveforms with INVERT function disabled and sharing a same turn on time with different duty cycle. Figure 16 and 17 show two PWM waveforms with the same settings as Figure 14 and 15 with INVERT function enabled. Figure 14: Non-Inverted 20% Duty Cycle with 45° Phase Shift Turn On Time (GS = 0x333, DLY = 0x200, INVERT = 0). Figure 15: Non-Inverted 80% Duty Cycle with 45° Phase Shift Turn On Time (GS = 0xCCC, DLY = 0x200, INVERT = 0). Figure 16: Inverted 20% Duty Cycle with 45° Phase Shift Turn Off Time (GS = 0x333, DLY = 0x200, INVERT = 1). Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 9 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Figure 17: Inverted 80% Duty Cycle with 45° Phase Shift Turn Off Time (GS = 0xCCC, DLY = 0x200, INVERT = 1). Open and Short Fault Detection The AAT2499 provides the open and short fault detection functions to detect any LED that is opened or shorted. The fault status is indicated by the FLT pin and Fault Status registers. The AAT2499 has a programmable open and short fault blanking time. The blanking time can be programmed to 2, 4, 8, or 16 VSYNC cycles to prevent any false fault detection. The AAT2499 has an open fault clear bit and a short fault clear bit. By setting the fault clear bit, the fault status is removed and any further fault will not be detected until the bit is reset back to 0. Figure 18, 19, 20, and 21 show the 2, 4, 8, and 16 VSYNC blanking time settings in short fault detection. Figure 18: Short Fault with the 2 VSYNC Blanking Time. 10 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Figure 19: Short Fault with the 4 VSYNC Blanking Time. Figure 20: Open Fault with the 8 VSYNC Blanking Time. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 11 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Figure 21: Open Fault with the 16 VSYNC Blanking Time. Serial Shift Interface The AAT2469 collects the registers setting via SPI interface, and converts and sends the settings to the AAT2499s via the serial shift interface. When CSB pin is pulled high, the Start bit is set in CTRL3 register of AAT2469, then the AAT2469 would send data out to the serial shift interface. Figure 22 shows the serial shift interface data transmission after the Start bit is set in the AAT2469. Figure 22: Serial Shift Interface Data Transmission after Start Bit is set in the AAT2469. 12 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Layout Guidelines Follow the guidelines below to ensure proper operation of the AAT2469 and AAT2499: 1. Maintain a ground plane and connect to the IC GND pin(s), and minimize the distance from the input capacitor negative terminal to the GND pins. 2. Consider additional PCB GND exposed area for the AAT2469 and AAT2499 to maximize heat sinking capability. Connect the EP (bottom of the die) to GND. Connect GND and SGND as close as possible to the package and maximize the heat sinking space for overall performance. 3. Maximize package thermal dissipation and power handling capacity of the QFN77-48 package, solder the exposed paddle of the IC onto the thermal landing of the PCB, where the thermal landing is connected to the ground plane. If heat is still an issue, multi-layer boards with dedicated ground planes are recommended. Also, adding thermal vias with 0.3mm hole size and 1.2mm spacing between the vias (Refer to Figures 2 and 3) on the thermal landing would help transfer heat to the bottom GND plane of the PCB effectively. Component U1-U8 U9 C1-C9 C1, C3, C11 D1 D2 R1-R8 R10-R13, R17, R18 R14 R21 JP1 JP2, JP3, JP4 P1 P2 Part Number Description AAT2499 AAT2469 GRM188R61C104KA01D GRM188R61C225KE15D LTST-C190CKT LL4148-13 CRCW06036K04FKEA CRCW06030000Z0EA CRCW06032K00FKEA CRCW060310K0FKEA TSW-120-08-G-D TSW-120-08-G-D HRP10H-ND AWHW20G-0202-T-R 2 Channels White LED Driver Control IC for AAT2499s Cap Cer 0.1μF 16V X5R 0603 Cap Cer 2.2μF 16V X5R 0603 Red LED, SMD, 0603 Diode Switch 75V 500MW MINIMELF Res 6.04KΩ 1/10W 1% 0603 SMD Res 0Ω 1/10W 1% 0603 SMD Res 2KΩ 1/10W 1% 0603 SMD Res 10KΩ 1/10W 1% 0603 SMD Conn. Header 4 Pos, 2.54mm Conn. Header 2 Pos, 2.54mm Header 5x2-Pin, Dual Row, 2.54mm Header 10x2-Pin, Dual Row, 2.54mm Manufacturer Skyworks Taiyo Yuden Murata Lite-On Inc. Diode Inc Vishay Samtec, Inc Assmann Table 3: AAT2469/AAT2499 Evaluation Board BOM Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 13 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Figure 23: AAT2469 and AAT2499 Evaluation Board Layout – Top Layer. Figure 24: AAT2469 and AAT2499 (7mm × 7mm TDFN) Evaluation Board Layout – Bottom Layer. 14 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 EVALUATION BOARD DATA SHEET EV187 Evaluation Board for the AAT2469/2499 Sixteen-Channel TVLite White LED Driver Solutionwith LED Current and Timing Control Copyright © 2012 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 202321A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 31, 2012 15