Product Folder Sample & Buy Technical Documents Support & Community Tools & Software DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 DLP4710 0.47 1080p DMD 1 Features 3 Description • The DLP4710 digital micromirror device (DMD) is a digitally controlled micro-opto-electromechanical system (MOEMS) spatial light modulator (SLM). When coupled to an appropriate optical system, the DLP4710 DMD displays a very crisp and high quality image or video. DLP4710 is part of the chipset comprising of the DLP4710 DMD, DLPC3439 display controller and DLPA3000/DLPA3005 PMIC/LED drivers. The compact physical size of the DLP4710 coupled with the controller and the PMIC/LED driver provides a complete system solution that enables small form factor, low power, and high resolution HD displays. 1 • • 0.47-Inch (11.93-mm) Diagonal Micromirror Array – 1920 × 1080 Array of Aluminum MicrometerSized Mirrors, in an Orthogonal Layout – 5.4 – Micron Micromirror Pitch – ±17° Micromirror Tilt (Relative to Flat Surface) – Bottom Illumination for Optimal Efficiency and Optical Engine Size – Polarization Independent Aluminum Micromirror Surface 32-Bit SubLVDS Input Data Bus Dedicated DLPC3439 Display Controller and DLPA3000/DLPA3005 PMIC/LED Drivers for Reliable Operation PART NUMBER DLP4710 2 Applications • • • • • • Device Information(1) Smart Full HD Projector Mobile Accessory Full HD Projector Screenless Display Interactive Display Low Latency Gaming Display Head Mounted Display PACKAGE CLGA (100) BODY SIZE (NOM) 24.50-mm × 11-mm × 3.80-mm (1) For all available packages, see the orderable addendum at the end of the data sheet. DLP® DLP4710 0.47 1080p Chipset 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com Table of Contents 1 2 3 4 5 6 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 6.13 7 1 1 1 2 3 8 Absolute Maximum Ratings ..................................... 8 Storage Conditions.................................................... 8 ESD Ratings.............................................................. 9 Recommended Operating Conditions....................... 9 Thermal Information ................................................ 11 Electrical Characteristics......................................... 11 Timing Requirements .............................................. 12 Switching Characteristics ....................................... 17 System Mounting Interface Loads .......................... 17 Physical Characteristics of the Micromirror Array. 18 Micromirror Array Optical Characteristics ............. 19 Window Characteristics......................................... 20 Chipset Component Usage Specification ............. 20 Detailed Description ............................................ 21 7.1 Overview ................................................................. 21 7.2 Functional Block Diagram ....................................... 21 7.3 Feature Description................................................. 22 7.4 7.5 7.6 7.7 8 Device Functional Modes........................................ Window Characteristics and Optics ........................ Micromirror Array Temperature Calculation............ Micromirror Landed-On/Landed-Off Duty Cycle .... 22 22 23 24 Application and Implementation ........................ 28 8.1 Application Information............................................ 28 8.2 Typical Application .................................................. 29 9 Power Supply Recommendations...................... 31 9.1 Power Supply Power-Up Procedure ...................... 31 9.2 Power Supply Power-Down Procedure .................. 31 9.3 Power Supply Sequencing Requirements .............. 32 10 Layout................................................................... 34 10.1 Layout Guidelines ................................................. 34 10.2 Layout Example .................................................... 34 11 Device and Documentation Support ................. 35 11.1 11.2 11.3 11.4 11.5 11.6 Device Support...................................................... Related Links ........................................................ Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 35 35 36 36 36 36 12 Mechanical, Packaging, and Orderable Information ........................................................... 36 4 Revision History Changes from Original (November 2014) to Revision A • 2 Page Changed device status from Product preview to Production Data and released full version of the document .................... 1 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 5 Pin Configuration and Functions FQL Package 100-Pin CLGA Bottom View Pin Functions – Connector Pins (1) PIN NAME NO. TYPE SIGNAL DATA RATE DESCRIPTION PACKAGE NET LENGTH (2) (mm) DATA INPUTS D_AN(0) G3 I SubLVDS Double Data, Negative 5.01 D_AN(1) F4 I SubLVDS Double Data, Negative 2.03 D_AN(2) E3 I SubLVDS Double Data, Negative 2.41 D_AN(3) E6 I SubLVDS Double Data, Negative 4.71 D_AN(4) J5 I SubLVDS Double Data, Negative 3.23 D_AN(5) L5 I SubLVDS Double Data, Negative 3.87 D_AN(6) G5 I SubLVDS Double Data, Negative 6.32 D_AN(7) L3 I SubLVDS Double Data, Negative 1.84 D_AP(0) H3 I SubLVDS Double Data, Positive 5.01 D_AP(1) G4 I SubLVDS Double Data, Positive 2.03 D_AP(2) E4 I SubLVDS Double Data, Positive 2.41 D_AP(3) E5 I SubLVDS Double Data, Positive 4.71 D_AP(4) J6 I SubLVDS Double Data, Positive 3.23 (1) (2) Low speed interface is LPSDR and adheres to the Electrical Characteristics and AC/DC Operating Conditions table in JEDEC Standard No. 209B, Low Power Double Data Rate (LPDDR) JESD209B. Net trace lengths inside the package: Relative dielectric constant for the FQL ceramic package is 9.8. Propagation speed = 11.8 / sqrt (9.8) = 3.769 inches/ns. Propagation delay = 0.265 ns/inch = 265 ps/inch = 10.43 ps/mm. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 3 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com Pin Functions – Connector Pins(1) (continued) PIN NAME NO. TYPE SIGNAL DATA RATE DESCRIPTION PACKAGE NET LENGTH (2) (mm) D_AP(5) L6 I SubLVDS Double Data, Positive 3.87 D_AP(6) G6 I SubLVDS Double Data, Positive 6.32 D_AP(7) L4 I SubLVDS Double Data, Positive 1.84 D_BN(0) G27 I SubLVDS Double Data, Negative 2.51 D_BN(1) E26 I SubLVDS Double Data, Negative 4.43 D_BN(2) D28 I SubLVDS Double Data, Negative 2.76 D_BN(3) D26 I SubLVDS Double Data, Negative 5.47 D_BN(4) L25 I SubLVDS Double Data, Negative 4.85 D_BN(5) K25 I SubLVDS Double Data, Negative 4.10 D_BN(6) L28 I SubLVDS Double Data, Negative 2.53 D_BN(7) K27 I SubLVDS Double Data, Negative 2.76 D_BP(0) F27 I SubLVDS Double Data, Positive 2.51 D_BP(1) E27 I SubLVDS Double Data, Positive 4.43 D_BP(2) D27 I SubLVDS Double Data, Positive 2.76 D_BP(3) D25 I SubLVDS Double Data, Positive 5.47 D_BP(4) L26 I SubLVDS Double Data, Positive 4.85 D_BP(5) J25 I SubLVDS Double Data, Positive 4.10 D_BP(6) K28 I SubLVDS Double Data, Positive 2.53 D_BP(7) J27 I SubLVDS Double Data, Positive 2.76 DCLK_AN J3 I SubLVDS Double Clock, Negative 3.77 DCLK_AP K3 I SubLVDS Double Clock, Positive 3.77 DCLK_BN H26 I SubLVDS Double Clock, Negative 2.98 DCLK_BP H27 I SubLVDS Double Clock, Positive 2.98 LS_WDATA D3 I LPSDR (1) Single Write data for low speed interface. 1.20 LS_CLK C3 I LPSDR Single Clock for low-speed interface 1.20 DMD_DEN_ARSTZ B6 I LPSDR Asynchronous reset DMD signal. A low signal places the DMD in reset. A high signal releases the DMD from reset and places it in active mode. 4.19 LS_RDATA_A C6 O LPSDR Single Read data for low-speed interface 3.93 LS_RDATA_B C4 O LPSDR Single Read data for low-speed interface 2.57 VBIAS (3) B27 Power B4 Power Supply voltage for positive bias level at micromirrors 24.51 VBIAS (3) VOFFSET (3) B2 Power 49.56 VOFFSET (3) C29 Power Supply voltage for HVCMOS core logic. Supply voltage for stepped high level at micromirror address electrodes. Supply voltage for offset level at micromirrors. VRESET B28 Power B3 Power Supply voltage for negative reset level at micromirrors. 24.82 VRESET CONTROL INPUTS POWER (3) 4 24.51 49.56 24.82 The following power supplies are all required to operate the DMD: VDD, VDDI, VOFFSET, VBIAS, VRESET. All VSS connections are also required. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 Pin Functions – Connector Pins(1) (continued) PIN NAME NO. TYPE VDD (3) C2 Power VDD D2 Power VDD D29 Power VDD E2 Power VDD E29 Power VDD H2 Power VDD H28 Power VDD H29 Power VDD J2 Power VDD J28 Power VDD J29 Power VDD K2 Power VDD K29 Power VDD L2 Power VDD L29 Power VDDI E28 Power VDDI F2 Power VDDI F28 Power VDDI F29 Power VDDI F3 Power VDDI G2 Power VDDI G28 Power VDDI G29 Power SIGNAL DATA RATE DESCRIPTION PACKAGE NET LENGTH (2) (mm) Supply voltage for LVCMOS core logic. Supply voltage for LPSDR inputs. Supply voltage for normal high level at micromirror address electrodes. Supply voltage for SubLVDS receivers. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 5 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com Pin Functions – Connector Pins(1) (continued) PIN NAME NO. TYPE VSS B25 Ground VSS B26 Ground VSS B29 Ground VSS B5 Ground VSS C25 Ground VSS C26 Ground VSS C27 Ground VSS C28 Ground VSS C5 Ground VSS D4 Ground VSS D5 Ground VSS D6 Ground VSS E25 Ground VSS F25 Ground VSS F26 Ground VSS F5 Ground VSS F6 Ground VSS G25 Ground VSS G26 Ground VSS H25 Ground VSS H4 Ground VSS H5 Ground VSS H6 Ground VSS J26 Ground VSS J4 Ground VSS K26 Ground VSS K4 Ground VSS K5 Ground VSS K6 Ground VSS L27 Ground 6 SIGNAL DATA RATE DESCRIPTION PACKAGE NET LENGTH (2) (mm) Common return. Ground for all power. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 Pin Functions – Test Pads NUMBER SYSTEM BOARD A1 Do not connect A5 Do not connect A6 Do not connect A25 Do not connect A26 Do not connect A27 Do not connect A28 Do not connect A29 Do not connect A30 Do not connect A31 Do not connect B30 Do not connect B31 Do not connect C30 Do not connect C31 Do not connect D1 Do not connect E1 Do not connect Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 7 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings see (1) VDD Input pins Clock frequency (1) (2) (3) (4) (5) (6) (7) (8) (9) MAX UNIT –0.5 2.3 V Supply voltage for SubLVDS receivers –0.5 2.3 V VOFFSET Supply voltage for HVCMOS and micromirror electrode (2) (3) –0.5 11 V Supply voltage for micromirror electrode (2) –0.5 19 V VRESET Supply voltage for micromirror electrode (2) –15 0.3 V | VDDI–VDD | Supply voltage delta (absolute value) (4) 0.3 V | VBIAS–VOFFSET | Supply voltage delta (absolute value) (5) 11 V | VBIAS–VRESET | Supply voltage delta (absolute value) (6) 34 V –0.5 VDD + 0.5 V –0.5 Input voltage for other inputs LPSDR (2) Input voltage for other inputs SubLVDS (2) (7) VDDI + 0.5 V | VID | SubLVDS input differential voltage (absolute value) (7) 810 mV IID SubLVDS input differential current 10 mA ƒclock Clock frequency for low speed interface LS_CLK 130 MHz ƒclock Clock frequency for high speed interface DCLK 620 MHz –20 90 °C –40 90 °C TARRAY and TWINDOW Environmental (2) MIN VDDI Supply voltage VBIAS Input voltage Supply voltage for LVCMOS core logic (2) Supply voltage for LPSDR low speed interface Temperature – operational (8) Temperature – non-operational (8) TDP Dew Point - operating and non-operating 81 °C |TDELTA| Absolute Temperature delta between any point on the window edge and the ceramic test point TP1 (9) 30 °C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device is not implied at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure above or below the Recommended Operating Conditions for extended periods may affect device reliability. All voltage values are with respect to the ground terminals (VSS). The following power supplies are all required to operate the DMD: VDD, VDDI, VOFFSET, VBIAS, and VRESET. All VSS connections are also required. VOFFSET supply transients must fall within specified voltages. Exceeding the recommended allowable absolute voltage difference between VDDI and VDD may result in excessive current draw. Exceeding the recommended allowable absolute voltage difference between VBIAS and VOFFSET may result in excessive current draw. Exceeding the recommended allowable absolute voltage difference between VBIAS and VRESET may result in excessive current draw. This maximum input voltage rating applies when each input of a differential pair is at the same voltage potential. Sub-LVDS differential inputs must not exceed the specified limit or damage may result to the internal termination resistors. The highest temperature of the active array (as calculated by the Micromirror Array Temperature Calculation) or of any point along the Window Edge as defined in Figure 18. The locations of thermal test points TP2, TP3, TP4, and TP5 in Figure 18 are intended to measure the highest window edge temperature. If a particular application causes another point on the window edge to be at a higher temperature, that point should be used. Temperature delta is the highest difference between the ceramic test point 1 (TP1) and anywhere on the window edge as shown in Figure 18. The window test points TP2, TP3, TP4, and TP5 shown in Figure 18 are intended to result in the worst case delta. If a particular application causes another point on the window edge to result in a larger delta temperature, that point should be used. 6.2 Storage Conditions applicable before the DMD is installed in the final product Tstg TDP (1) (2) 8 DMD storage temperature Storage dew point MIN MAX UNIT -40 85 °C Long-term (1) 24 Short-term (2) 28 °C Long-term is defined as the usable life of the device. Dew points beyond the specified long-term dew point are for short-term conditions only, where short-term is defined as less than 60 cumulative days over the usable life of the device (operating, non-operating, or storage). Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 6.3 ESD Ratings V(ESD) (1) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) VALUE UNIT ±2000 V JEDEC document JEP155 states that 500 V HBM allows safe manufacturing with a standard ESD control process. 6.4 Recommended Operating Conditions Over operating free-air temperature range (unless otherwise noted) (1) (2) (3) MIN NOM MAX UNIT SUPPLY VOLTAGE RANGE (4) VDD Supply voltage for LVCMOS core logic Supply voltage for LPSDR low-speed interface 1.7 1.8 1.95 V VDDI Supply voltage for SubLVDS receivers 1.7 1.8 1.95 V VOFFSET Supply voltage for HVCMOS and micromirror electrode (5) 9.5 10 10.5 V VBIAS Supply voltage for mirror electrode VRESET Supply voltage for micromirror electrode 17.5 18 18.5 V –14.5 –14 –13.5 V |VDDI–VDD| Supply voltage delta (absolute value) (6) 0.3 V |VBIAS–VOFFSET| Supply voltage delta (absolute value) (7) 10.5 V |VBIAS–VRESET| Supply voltage delta (absolute value) (8) 33 V CLOCK FREQUENCY ƒclock Clock frequency for low speed interface LS_CLK (9) 108 120 MHz ƒclock Clock frequency for high speed interface DCLK (10) 300 540 MHz 44% 56% Duty cycle distortion DCLK SUBLVDS INTERFACE (10) | VID | SubLVDS input differential voltage (absolute value) Figure 8 , Figure 9 150 250 350 mV VCM Common mode voltage Figure 8 , Figure 9 700 900 1100 mV VSUBLVDS SubLVDS voltage Figure 8, Figure 9 575 1225 mV ZLINE Line differential impedance (PWB/trace) 90 100 110 Ω ZIN Internal differential termination resistance Figure 10 80 100 120 Ω 100-Ω differential PCB trace 6.35 152.4 mm (1) The following power supplies are all required to operate the DMD: VDD, VDDI, VOFFSET, VBIAS, and VRESET. All VSS connections are also required. (2) Recommended Operating Conditions are applicable after the DMD is installed in the final product. (3) The functional performance of the device specified in this data sheet is achieved when operating the device within the limits defined by the Recommended Operating Conditions. No level of performance is implied when operating the device above or below the Recommended Operating Conditions limits. (4) All voltage values are with respect to the ground pins (VSS). (5) VOFFSET supply transients must fall within specified max voltages. (6) To prevent excess current, the supply voltage delta |VDDI – VDD| must be less than specified limit. (7) To prevent excess current, the supply voltage delta |VBIAS – VOFFSET| must be less than specified limit. (8) To prevent excess current, the supply voltage delta |VBIAS – VRESET| must be less than specified limit. (9) LS_CLK must run as specified to ensure internal DMD timing for reset waveform commands. (10) Refer to the SubLVDS timing requirements in Timing Requirements. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 9 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com Recommended Operating Conditions (continued) Over operating free-air temperature range (unless otherwise noted)(1) (2) (3) MIN NOM MAX UNIT ENVIRONMENTAL Array Temperature – long-term operational (11) TARRAY (12) (13) 0 40 to 70 (13) –20 75 (14) Array Temperature – short-term operational (12) TDP (15) °C Dew Point - long-term average (operational and nonoperational) (14) 24 °C Dew Point - short-term (operational and nonoperational) (16) 28 °C |TDELTA| Absolute Temperature difference between any point on the window edge and the ceramic test point TP1 (17) 30 °C TWINDOW Window Temperature – operational (11) 90 °C (18) (11) ILLUV Illumination wavelengths < 400 nm 0.68 ILLVIS Illumination wavelengths between 400 nm and 700 nm ILLIR Illumination wavelengths > 700 nm mW/cm2 Thermally limited 10 mW/cm2 (11) Simultaneous exposure of the DMD to the maximum Recommended Operating Conditions for temperature and UV illumination will reduce device lifetime. (12) The array temperature cannot be measured directly and must be computed analytically from the temperature measured at test point 1 (TP1) shown in Figure 18 and the package thermal resistance using Micromirror Array Temperature Calculation. (13) Per Figure 1, the maximum operational array temperature should be derated based on the micromirror landed duty cycle that the DMD experiences in the end application. Refer to Micromirror Landed-On/Landed-Off Duty Cycle for a definition of micromirror landed duty cycle. (14) Long-term is defined as the usable life of the device. (15) Array temperatures beyond those specified as long-term are recommended for short-term conditions only (power-up). Short-term is defined as cumulative time over the usable life of the device and is less than 500 hours for temperatures between the long-term maximum and 75ºC, less than 500 hours for temperatures between 0ºC and –10ºC, and less than 25 hours for temperatures between 10ºC and -20ºC. (16) Dew points beyond the specified long-term dew point are for short-term conditions only, where short-term is defined as less than 60 cumulative days over the usable life of the device (operating, non-operating, or storage). (17) Temperature delta is the highest difference between the ceramic test point 1 (TP1) and anywhere on the window edge shown in Figure 18. The window test points TP2, TP3, TP4, and TP5 shown in Figure 18 are intended to result in the worst case delta temperature. If a particular application causes another point on the window edge to result in a larger delta temperature, that point should be used. (18) Window temperature is the highest temperature on the window edge shown in Figure 18. The locations of thermal test points TP2, TP3, TP4, and TP5 in Figure 18 are intended to measure the highest window edge temperature. If a particular application causes another point on the window edge to be at a higher temperature, that point should be used. Max Recommended Array Temperature – Operational (°C) SPACE 80 70 60 50 40 30 0/100 5/95 10/90 15/85 20/80 25/75 30/70 35/65 40/60 45/55 50/50 100/0 95/5 90/10 85/15 80/20 75/25 70/30 65/35 Micromirror Landed Duty Cycle 60/40 55/45 D001 Figure 1. Max Recommended Array Temperature – Derating Curve 10 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 6.5 Thermal Information FQL (LGA) THERMAL METRIC (1) 100 PINS MIN UNIT TYP Thermal resistance Active area to test point 1 (TP1) (1) (1) MAX 1.1 °C/W The DMD is designed to conduct absorbed and dissipated heat to the back of the package. The cooling system must be capable of maintaining the package within the temperature range specified in the Recommended Operating Conditions. The total heat load on the DMD is largely driven by the incident light absorbed by the active area; although other contributions include light energy absorbed by the window aperture and electrical power dissipation of the array. Optical systems should be designed to minimize the light energy falling outside the window clear aperture since any additional thermal load in this area can significantly degrade the reliability of the device. 6.6 Electrical Characteristics Over operating free-air temperature range (unless otherwise noted) (1) TEST CONDITIONS (2) PARAMETER MIN TYP MAX UNIT CURRENT IDD Supply current: VDD (3) IDDI Supply current: VDDI (3) IOFFSET Supply current: VOFFSET (5) IBIAS Supply current: VBIAS (5) IRESET Supply current: VRESET (6) VDD = 1.95 V (4) 260 VDD = 1.8 V 180 VDDI = 1.95 V (4) 62 VDD = 1.8 V 40 VOFFSET = 10.5 V (6) 7.4 VOFFSET = 10 V 6.3 VBIAS = 18.5 V (6) 1.1 VBIAS = 18 V 0.9 VRESET = –14.5 V 5.4 VRESET = –14 V 4.4 mA mA mA mA mA POWER (7) PDD Supply power dissipation: VDD (3) (4) PDDI Supply power dissipation: VDDI (3) POFFSET Supply power dissipation: VOFFSET (5) (6) PBIAS Supply power dissipation: VBIAS (5) PRESET Supply power dissipation: VRESET (6) PTOTAL Supply power dissipation: Total VDD = 1.95 V 507 VDD = 1.8 V (4) 324 VDDI = 1.95 V 120.9 VDD = 1.8 V 72 VOFFSET = 10.5 V 77.7 VOFFSET = 10 V (6) 63 VBIAS = 18.5 V 20.35 VBIAS = 18 V 16.2 VRESET = –14.5 V 78.3 VRESET = –14 V 61.6 536.8 804.25 mW mW mW mW mW mW LPSDR INPUT (8) VIH(DC) DC input high voltage (9) VIL(DC) DC input low voltage (9) VIH(AC) AC input high voltage (9) (9) VIL(AC) AC input low voltage ∆VT Hysteresis ( VT+ – VT– ) (1) (2) (3) (4) (5) (6) (7) (8) (9) Figure 10 0.7 × VDD VDD + 0.3 V –0.3 0.3 × VDD V 0.8 × VDD VDD + 0.3 V –0.3 0.2 × VDD V 0.1 × VDD 0.4 × VDD V Device electrical characteristics are over Recommended Operating Conditions unless otherwise noted. All voltage values are with respect to the ground pins (VSS). To prevent excess current, the supply voltage delta |VDDI – VDD| must be less than specified limit. Supply power dissipation based on non–compressed commands and data. To prevent excess current, the supply voltage delta |VBIAS – VOFFSET| must be less than specified limit. Supply power dissipation based on 3 global resets in 200 µs. The following power supplies are all required to operate the DMD: VDD, VDDI, VOFFSET, VBIAS, VRESET. All VSS connections are also required. LPSDR specifications are for pins LS_CLK and LS_WDATA. Low-speed interface is LPSDR and adheres to the Electrical Characteristics and AC/DC Operating Conditions table in JEDEC Standard No. 209B, Low-Power Double Data Rate (LPDDR) JESD209B. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 11 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com Electrical Characteristics (continued) Over operating free-air temperature range (unless otherwise noted)(1) TEST CONDITIONS (2) PARAMETER IIL Low–level input current VDD = 1.95 V; VI = 0 V IIH High–level input current VDD = 1.95 V; VI = 1.95 V MIN TYP MAX –100 UNIT nA 100 nA LPSDR OUTPUT (10) VOH DC output high voltage IOH = –2 mA VOL DC output low voltage IOL = 2 mA 0.8 × VDD 0.2 × VDD V V Input capacitance LPSDR ƒ = 1 MHz 10 pF CAPACITANCE CIN Input capacitance SubLVDS ƒ = 1 MHz 20 pF COUT Output capacitance ƒ = 1 MHz 10 pF CRESET Reset group capacitance ƒ = 1 MHz; (1080 × 240) micromirrors 450 pF MAX UNIT 400 (10) LPSDR specification is for pin LS_RDATA. 6.7 Timing Requirements Device electrical characteristics are over Recommended Operating Conditions unless otherwise noted. MIN NOM LPSDR tr Rise slew rate (1) (30% to 80%) × VDD, Figure 3 1 3 V/ns tƒ Fall slew rate (1) (70% to 20%) × VDD, Figure 3 1 3 V/ns tr Rise slew rate (2) (20% to 80%) × VDD, Figure 3 0.25 (80% to 20%) × VDD, Figure 3 0.25 (2) tƒ Fall slew rate tc Cycle time LS_CLK, tW(H) Pulse duration LS_CLK high 50% to 50% reference points, Figure 2 tW(L) Pulse duration LS_CLK low 50% to 50% reference points, Figure 2 tsu Setup time th Hold time tWINDOW Window time (1) (3) Figure 2 7.7 V/ns V/ns 8.3 ns 3.1 ns 3.1 ns LS_WDATA valid before LS_CLK ↑, Figure 2 1.5 ns LS_WDATA valid after LS_CLK ↑, Figure 2 1.5 ns Setup time + Hold time, Figure 2 3 ns Window time derating (1) (3) For each 0.25 V/ns reduction in slew rate below 1 V/ns, Figure 5 tr Rise slew rate 20% to 80% reference points, Figure 4 0.7 1 V/ns tƒ Fall slew rate 80% to 20% reference points, Figure 4 0.7 1 V/ns tc Cycle time DCLK, Figure 6 1.79 1.85 tW(H) Pulse duration DCLK high 50% to 50% reference points, Figure 6 0.79 ns tW(L) Pulse duration DCLK low 50% to 50% reference points, Figure 6 0.79 ns tsu Setup time D(0:7) valid before DCLK ↑ or DCLK ↓, Figure 6 th Hold time D(0:7) valid after DCLK ↑ or DCLK ↓, Figure 6 tWINDOW Window time tDERATING 0.35 ns SubLVDS tLVDS- Power-up receiver Setup time + Hold time, Figure 6, Figure 7 (4) ns 0.3 ns 2000 ns ENABLE+REFGEN (1) (2) (3) (4) 12 Specification is for LS_CLK and LS_WDATA pins. Refer to LPSDR input rise slew rate and fall slew rate in Figure 3. Specification is for DMD_DEN_ARSTZ pin. Refer to LPSDR input rise and fall slew rate in Figure 3. Window time derating example: 0.5-V/ns slew rate increases the window time by 0.7 ns, from 3 to 3.7 ns. Specification is for SubLVDS receiver time only and does not take into account commanding and latency after commanding. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 tc tw(H) LS_CLK 50% tw(L) 50% 50% th tsu LS_ WDATA 50% 50% twindow Low-speed interface is LPSDR and adheres to the Electrical Characteristics and AC/DC Operating Conditions table in JEDEC Standard No. 209B, Low Power Double Data Rate (LPDDR) JESD209B. Figure 2. LPSDR Switching Parameters LS_CLK, LS_WDATA DMD_DEN_ARSTZ 1.0 * VDD 1.0 * VDD 0.8 * VDD 0.7 * VDD VIH(AC) VIH(DC) 0.3 * VDD 0.2 * VDD VIL(DC) VIL(AC) 0.8 * VDD 0.2 * VDD 0.0 * VDD 0.0 * VDD tr tf tr tf Figure 3. LPSDR Input Rise and Fall Slew Rate Figure 4. SubLVDS Input Rise and Fall Slew Rate Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 13 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com VIH MIN LS_CLK Midpoint VIL MAX tSU tH VIH MIN LS_WDATA Midpoint VIL MAX tWINDOW VIH MIN Midpoint LS_CLK VIL MAX tDERATING tSU tH VIH MIN Midpoint LS_WDATA VIL MAX tWINDOW Figure 5. Window Time Derating Concept Figure 6. SubLVDS Switching Parameters 14 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 Note: Refer to High-Speed Interface for details. Figure 7. High-Speed Training Scan Window Figure 8. SubLVDS Voltage Parameters 1.225V V SubLVDS max = V CM max + | 1/2 * V ID max | VCM VID VSubLVDS min = VCM min – | 1/2 * VID max | 0.575V Figure 9. SubLVDS Waveform Parameters Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 15 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com Figure 10. SubLVDS Equivalent Input Circuit Not to Scale VIH VT+ Δ VT VT- VIL LS_CLK LS_WDATA Figure 11. LPSDR Input Hysteresis LS_CLK LS_WDATA Stop Start tPD LS_RDATA Acknowledge Figure 12. LPSDR Read Out Data Sheet Timing Reference Point Device Pin Output Under Test Tester Channel CL See Timing for more information. Figure 13. Test Load Circuit for Output Propagation Measurement 16 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 6.8 Switching Characteristics (1) Over operating free-air temperature range (unless otherwise noted). PARAMETER TEST CONDITIONS Output propagation, Clock to Q, rising edge of LS_CLK input to LS_RDATA output. Figure 12 tPD MAX UNIT CL = 5 pF 11.1 ns CL = 10 pF 11.3 ns CL = 85 pF 15 Slew rate, LS_RDATA TYP 0.5 Output duty cycle distortion, LS_RDATA (1) MIN ns V/ns 40% 60% Device electrical characteristics are over Recommended Operating Conditions unless otherwise noted. 6.9 System Mounting Interface Loads PARAMETER MIN NOM MAX UNIT Maximum system mounting interface load to be applied to the: • Thermal Interface Area (see Figure 14) • Clamping and Electrical Interface Area (see Figure 14) 62 N 110 N Figure 14. System Interface Loads Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 17 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com 6.10 Physical Characteristics of the Micromirror Array PARAMETER ε UNIT 1920 micromirrors Number of active rows See Figure 15 1080 micromirrors Micromirror (pixel) pitch See Figure 16 5.4 µm Micromirror active array width Micromirror pitch × number of active columns; see Figure 15 10.368 mm Micromirror active array height Micromirror pitch × number of active rows; see Figure 15 5.832 mm Micromirror active border (1) VALUE Number of active columns See Figure 15 Pond of micromirror (POM) (1) 20 micromirrors/side The structure and qualities of the border around the active array includes a band of partially functional micromirrors called the POM. These micromirrors are structurally and/or electrically prevented from tilting toward the bright or ON state, but still require an electrical bias to tilt toward OFF. Figure 15. Micromirror Array Physical Characteristics ε ε ε ε Figure 16. Mirror (Pixel) Pitch 18 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 6.11 Micromirror Array Optical Characteristics PARAMETER TEST CONDITIONS Micromirror tilt angle tolerance (2) (5) (6) (7) (8) (3) (4) (5) NOM –1 180 270 Micromirror crossover time Typical Performance 1.5 Micromirror switching time Typical Performance Number of out-of-specification micromirrors (8) Adjacent micromirrors ° ° 4 6 0 Non-adjacent micromirrors UNIT ° 1 Landed OFF state (7) MAX 17 Landed ON state Micromirror tilt direction (6) (1) (2) (3) (4) MIN DMD landed state (1) Micromirror tilt angle 10 μs micromirrors Measured relative to the plane formed by the overall micromirror array. Additional variation exists between the micromirror array and the package datums. Represents the landed tilt angle variation relative to the nominal landed tilt angle. Represents the variation that can occur between any two individual micromirrors, located on the same device or located on different devices. For some applications, it is critical to account for the micromirror tilt angle variation in the overall system optical design. With some system optical designs, the micromirror tilt angle variation within a device may result in perceivable non-uniformities in the light field reflected from the micromirror array. With some system optical designs, the micromirror tilt angle variation between devices may result in colorimetry variations, system efficiency variations or system contrast variations. When the micromirror array is landed (not parked), the tilt direction of each individual micromirror is dictated by the binary contents of the CMOS memory cell associated with each individual micromirror. A binary value of 1 results in a micromirror landing in the ON State direction. A binary value of 0 results in a micromirror landing in the OFF State direction. Micromirror tilt direction is measured as in a typical polar coordinate system: measuring counter-clockwise from a 0° reference which is aligned with the +X Cartesian axis. An out-of-specification micromirror is defined as a micromirror that is unable to transition between the two landed states within the specified Micromirror Switching Time. Figure 17. Landed Pixel Orientation and Tilt Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 19 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com 6.12 Window Characteristics PARAMETER (1) MIN Window material designation Window refractive index Window aperture at wavelength 546.1 nm (3) Window transmittance, single-pass through both surfaces and glass Minimum within the wavelength range 420 to 680 nm. Applies to all angles 0° to 30° AOI. 97% Window Transmittance, single-pass through both surfaces and glass Average over the wavelength range 420 to 680 nm. Applies to all angles 30° to 45° AOI. 97% (1) (2) (3) MAX UNIT 1.5119 (2) Illumination overfill NOM Corning Eagle XG See (2) See (3) See Window Characteristics and Optics for more information. See the package mechanical characteristics for details regarding the size and location of the window aperture. The active area of the DLP4710 device is surrounded by an aperture on the inside of the DMD window surface that masks structures of the DMD device assembly from normal view. The aperture is sized to anticipate several optical conditions. Overfill light illuminating the area outside the active array can scatter and create adverse effects to the performance of an end application using the DMD. The illumination optical system should be designed to limit light flux incident outside the active array to less than 10% of the average flux level in the active area. Depending on the particular system's optical architecture and assembly tolerances, the amount of overfill light on the outside of the active array may cause system performance degradation. SPACER 6.13 Chipset Component Usage Specification The DLP4710 is a component of one or more DLP chipsets. Reliable function and operation of the DLP4710 requires that it be used in conjunction with the other components of the applicable DLP chipset, including those components that contain or implement TI DMD control technology. TI DMD control technology is the TI technology and devices for operating or controlling a DLP DMD. NOTE TI assumes no responsibility for image quality artifacts or DMD failures caused by optical system operating conditions exceeding limits described previously 20 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 7 Detailed Description 7.1 Overview The DLP4710 is a 0.47 inch diagonal spatial light modulator of aluminum micromirrors. Pixel array size is 1920 columns by 1080 rows in a square grid pixel arrangement. The electrical interface is Sub Low Voltage Differential Signaling (SubLVDS) data. DLP4710 is part of the chipset comprising of the DLP4710 DMD, DLPC3439 display controller and DLPA3000/DLPA3005 PMIC/LED driver. To ensure reliable operation, DLP4710 DMD must always be used with DLPC3439 display controller and DLPA3000/DLPA3005 PMIC/LED drivers. 7.2 Functional Block Diagram (1) Details omitted for clarity. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 21 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com 7.3 Feature Description 7.3.1 Power Interface The power management IC, DLPA3000/DLPA3005, contains 3 regulated DC supplies for the DMD reset circuitry: VBIAS, VRESET and VOFFSET, as well as the 2 regulated DC supplies for the DLPC3439 controller. 7.3.2 Low-Speed Interface The Low Speed Interface handles instructions that configure the DMD and control reset operation. LS_CLK is the low–speed clock, and LS_WDATA is the low speed data input. 7.3.3 High-Speed Interface The purpose of the high-speed interface is to transfer pixel data rapidly and efficiently, making use of high speed DDR transfer and compression techniques to save power and time. The high-speed interface is composed of differential SubLVDS receivers for inputs, with a dedicated clock. 7.3.4 Timing The data sheet provides timing at the device pin. For output timing analysis, the tester pin electronics and its transmission line effects must be taken into account. Figure 13 shows an equivalent test load circuit for the output under test. Timing reference loads are not intended as a precise representation of any particular system environment or depiction of the actual load presented by a production test. System designers should use IBIS or other simulation tools to correlate the timing reference load to a system environment. The load capacitance value stated is only for characterization and measurement of AC timing signals. This load capacitance value does not indicate the maximum load the device is capable of driving. 7.4 Device Functional Modes DMD functional modes are controlled by the DLPC3439 controller. See the DLPC3439 controller data sheet or contact a TI applications engineer. 7.5 Window Characteristics and Optics 7.5.1 Optical Interface and System Image Quality TI assumes no responsibility for end-equipment optical performance. Achieving the desired end-equipment optical performance involves making trade-offs between numerous component and system design parameters. Optimizing system optical performance and image quality strongly relate to optical system design parameter trades. Although it is not possible to anticipate every conceivable application, projector image quality and optical performance is contingent on compliance to the optical system operating conditions described in the following sections: 7.5.1.1 Numerical Aperture and Stray Light Control The angle defined by the numerical aperture of the illumination and projection optics at the DMD optical area should be the same. This angle should not exceed the nominal device mirror tilt angle unless appropriate apertures are added in the illumination and/or projection pupils to block out flat-state and stray light from the projection lens. The mirror tilt angle defines DMD capability to separate the ON optical path from any other light path, including undesirable flat–state specular reflections from the DMD window, DMD border structures, or other system surfaces near the DMD such as prism or lens surfaces. If the numerical aperture exceeds the mirror tilt angle, or if the projection numerical aperture angle is more than two degrees larger than the illumination numerical aperture angle, objectionable artifacts in the display’s border and/or active area could occur. 7.5.1.2 Pupil Match TI’s optical and image quality specifications assume that the exit pupil of the illumination optics is nominally centered within 2° of the entrance pupil of the projection optics. Misalignment of pupils can create objectionable artifacts in the display’s border and/or active area, which may require additional system apertures to control, especially if the numerical aperture of the system exceeds the pixel tilt angle. 22 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 Window Characteristics and Optics (continued) 7.5.1.3 Illumination Overfill The active area of the device is surrounded by an aperture on the inside DMD window surface that masks structures of the DMD chip assembly from normal view, and is sized to anticipate several optical operating conditions. Overfill light illuminating the window aperture can create artifacts from the edge of the window aperture opening and other surface anomalies that may be visible on the screen. The illumination optical system should be designed to limit light flux incident anywhere on the window aperture from exceeding approximately 10% of the average flux level in the active area. Depending on the particular system’s optical architecture, overfill light may have to be further reduced below the suggested 10% level in order to be acceptable. 7.6 Micromirror Array Temperature Calculation Figure 18. DMD Thermal Test Points Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 23 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com Micromirror Array Temperature Calculation (continued) Micromirror array temperature can be computed analytically from measurement points on the outside of the package, the ceramic package thermal resistance, the electrical power dissipation, and the illumination heat load. The relationship between micromirror array temperature and the reference ceramic temperature is provided by the following equations: TARRAY = TCERAMIC + (QARRAY × RARRAY–TO–CERAMIC) (1) QARRAY = QELECTRICAL + QILLUMINATION (2) QILLUMINATION = (CL2W × SL) • TARRAY = Computed DMD array temperature (°C) • TCERAMIC = Measured ceramic temperature (°C), TP1 location in Figure 18 • RARRAY–TO–CERAMIC = DMD package thermal resistance from array to outside ceramic (°C/W) specified in Thermal Information • QARRAY = Total DMD power; electrical, specified in Electrical Characteristics , plus absorbed (calculated) (W) • QELECTRICAL = Nominal DMD electrical power dissipation (W), specified in Electrical Characteristics • CL2W = Conversion constant for screen lumens to absorbed optical power on the DMD (W/lm) specified below • SL = Measured ANSI screen lumens (lm) (3) Electrical power dissipation of the DMD is variable and depends on the voltages, data rates and operating frequencies. Refer to the specifications in Electrical Characteristics . Absorbed optical power from the illumination source is variable and depends on the operating state of the micromirrors and the intensity of the light source. Equations shown above are valid for a 1-chip DMD system with total projection efficiency through the projection lens from DMD to the screen of 87%. The conversion constant CL2W is based on the DMD micromirror array characteristics. It assumes a spectral efficiency of 300 lm/W for the projected light and illumination distribution of 83.7% on the DMD active array, and 16.3% on the DMD array border and window aperture. The conversion constant is calculated to be 0.00266 W/lm. Sample Calculation for typical projection application: 1. TCERAMIC = 55°C, assumed system measurement; see Recommended Operating Conditions for specification limits. 2. SL = 1500 lm 3. QELECTRICAL = 1.1 W; See the table notes in Recommended Operating Conditions for details. 4. CL2W = 0.00266 W/lm 5. QARRAY = 0.25 + (0.00266 × 1500) = 4.24 W 6. TARRAY = 55°C + (4.24 W × 1.1°C/W) = 59.66°C 7.7 Micromirror Landed-On/Landed-Off Duty Cycle 7.7.1 Definition of Micromirror Landed-On/Landed-Off Duty Cycle The micromirror landed-on/landed-off duty cycle (landed duty cycle) denotes the amount of time (as a percentage) that an individual micromirror is landed in the On state versus the amount of time the same micromirror is landed in the Off state. As an example, a landed duty cycle of 100/0 indicates that the referenced pixel is in the On state 100% of the time (and in the Off state 0% of the time), whereas 0/100 would indicate that the pixel is in the Off state 100% of the time. Likewise, 50/50 indicates that the pixel is On 50% of the time and Off 50% of the time. Note that when assessing landed duty cycle, the time spent switching from one state (ON or OFF) to the other state (OFF or ON) is considered negligible and is thus ignored. Since a micromirror can only be landed in one state or the other (On or Off), the two numbers (percentages) always add to 100. 24 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 Micromirror Landed-On/Landed-Off Duty Cycle (continued) 7.7.2 Landed Duty Cycle and Useful Life of the DMD Knowing the long-term average landed duty cycle (of the end product or application) is important because subjecting all (or a portion) of the DMD’s micromirror array (also called the active array) to an asymmetric landed duty cycle for a prolonged period of time can reduce the DMD’s usable life. Note that it is the symmetry/asymmetry of the landed duty cycle that is of relevance. The symmetry of the landed duty cycle is determined by how close the two numbers (percentages) are to being equal. For example, a landed duty cycle of 50/50 is perfectly symmetrical whereas a landed duty cycle of 100/0 or 0/100 is perfectly asymmetrical. 7.7.3 Landed Duty Cycle and Operational DMD Temperature Operational DMD Temperature and Landed Duty Cycle interact to affect the DMD’s usable life, and this interaction can be exploited to reduce the impact that an asymmetrical Landed Duty Cycle has on the DMD’s usable life. This is quantified in the de-rating curve shown in Figure 1. The importance of this curve is that: • All points along this curve represent the same usable life. • All points above this curve represent lower usable life (and the further away from the curve, the lower the usable life). • All points below this curve represent higher usable life (and the further away from the curve, the higher the usable life). In practice, this curve specifies the Maximum Operating DMD Temperature that the DMD should be operated at for a given long-term average Landed Duty Cycle. 7.7.4 Estimating the Long-Term Average Landed Duty Cycle of a Product or Application During a given period of time, the Landed Duty Cycle of a given pixel follows from the image content being displayed by that pixel. For example, in the simplest case, when displaying pure-white on a given pixel for a given time period, that pixel will experience a 100/0 Landed Duty Cycle during that time period. Likewise, when displaying pure-black, the pixel will experience a 0/100 Landed Duty Cycle. Between the two extremes (ignoring for the moment color and any image processing that may be applied to an incoming image), the Landed Duty Cycle tracks one-to-one with the gray scale value, as shown in Table 1. Table 1. Grayscale Value and Landed Duty Cycle Grayscale Value Landed Duty Cycle 0% 0/100 10% 10/90 20% 20/80 30% 30/70 40% 40/60 50% 50/50 60% 60/40 70% 70/30 80% 80/20 90% 90/10 100% 100/0 Accounting for color rendition (but still ignoring image processing) requires knowing both the color intensity (from 0% to 100%) for each constituent primary color (red, green, and/or blue) for the given pixel as well as the color cycle time for each primary color, where “color cycle time” is the total percentage of the frame time that a given primary must be displayed in order to achieve the desired white point. During a given period of time, the landed duty cycle of a given pixel can be calculated as follows: Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 25 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com Landed Duty Cycle = (Red_Cycle_% × Red_Scale_Value) + (Green_Cycle_% × Green_Scale_Value) + (Blue_Cycle_%×Blue_Scale_Value) where Red_Cycle_%, Green_Cycle_%, and Blue_Cycle_%. represent the percentage of the frame time that Red, Green, and Blue are displayed (respectively) to achieve the desired white point. (4) For example, assume that the red, green and blue color cycle times are 50%, 20%, and 30% respectively (in order to achieve the desired white point), then the Landed Duty Cycle for various combinations of red, green, blue color intensities would be as shown in Table 2. Table 2. Example Landed Duty Cycle for Full-Color Pixels Red Cycle Percentage Green Cycle Percentage Blue Cycle Percentage 50% 20% 30% Red Scale Value Green Scale Value Blue Scale Value Landed Duty Cycle 0% 0% 0% 0/100 100% 0% 0% 50/50 0% 100% 0% 20/80 0% 0% 100% 30/70 12% 0% 0% 6/94 0% 35% 0% 7/93 0% 0% 60% 18/82 100% 100% 0% 70/30 0% 100% 100% 50/50 100% 0% 100% 80/20 12% 35% 0% 13/87 0% 35% 60% 25/75 12% 0% 60% 24/76 100% 100% 100% 100/0 The last factor to account for in estimating the Landed Duty Cycle is any applied image processing. Within the DLP Controller DLPC3439, the two functions which affect Landed Duty Cycle are Gamma and IntelliBright™. Gamma is a power function of the form Output_Level = A × Input_LevelGamma, where A is a scaling factor that is typically set to 1. In the DLPC3430/DLPC3435 controller, gamma is applied to the incoming image data on a pixel-by-pixel basis. A typical gamma factor is 2.2, which transforms the incoming data as shown in Figure 19. 26 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 100 90 Output Level (%) 80 Gamma = 2.2 70 60 50 40 30 20 10 0 0 10 20 30 40 50 60 Input Level (%) 70 80 90 100 D002 Figure 19. Example of Gamma = 2.2 From Figure 19, if the gray scale value of a given input pixel is 40% (before gamma is applied), then gray scale value will be 13% after gamma is applied. Therefore, it can be seen that since gamma has a direct impact displayed gray scale level of a pixel, it also has a direct impact on the landed duty cycle of a pixel. The IntelliBright algorithms content adaptive illumination control (CAIC) and local area brightness boost (LABB) also apply transform functions on the gray scale level of each pixel. But while amount of gamma applied to every pixel (of every frame) is constant (the exponent, gamma, is constant), CAIC and LABB are both adaptive functions that can apply a different amounts of either boost or compression to every pixel of every frame. Consideration must also be given to any image processing which occurs before the DLPC3439 controller. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 27 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.1 Application Information The DMDs are spatial light modulators which reflect incoming light from an illumination source to one of two directions, with the primary direction being into a projection or collection optic. Each application is derived primarily from the optical architecture of the system and the format of the data coming into the dual DLPC3439 controllers. The new high tilt pixel in the bottom-illuminated DMD increases brightness performance and enables a smaller system footprint for thickness constrained applications. Applications of interest include projection embedded in display devices like smartphones, tablets, cameras, and camcorders. Other applications include wearable (near-eye) displays, battery powered mobile accessory, interactive display, low-latency gaming display, and digital signage. DMD power-up and power-down sequencing is strictly controlled by the DLPA3000/DLPA3005. Refer to Power Supply Recommendations for power-up and power-down specifications. To ensure reliable operation, the DLP4710 DMD must always be used with two DLPC3439 display controllers and a DLPA3000/DLPA3005 PMIC/LED driver. 28 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 8.2 Typical Application A common application when using a DLP4710 DMD and two DLPC3439s is for creating a pico-projector that can be used as an accessory to a smartphone, tablet or a laptop. The two DLPC3439s in the pico-projector receive images from a multimedia front end within the product as shown in Figure 20. Figure 20. Typical Application Diagram 8.2.1 Design Requirements A pico-projector is created by using a DLP chip set comprised of a DLP4710 DMD, two DLPC3439 controllers and a DLPA3000/DLPA3005 PMIC/LED driver. The DLPC3439 controllers do the digital image processing, the DLPA3000/DLPA3005 provides the needed analog functions for the projector, and the DLP4710 DMD is the display device for producing the projected image. In addition to the three DLP chips in the chip set, other chips are needed. At a minimum a Flash part is needed to store the software and firmware to control each DLPC3439 controller. The illumination light that is applied to the DMD is typically from red, green, and blue LEDs. These are often contained in three separate packages, but sometimes more than one color of LED die may be in the same package to reduce the overall size of the pico-projector. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 29 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com Typical Application (continued) For connecting the DLPC3439 controllers to the multimedia front end for receiving images, a 24-bit parallel interface is used. An I2C interface should be connected to the multimedia front end for sending commands to one of the DLPC3439 controllers for configuring the DLPC3439 controller for different features. 8.2.2 Detailed Design Procedure For connecting together the two DLPC3439 controllers, the DLPA3000/DLPA3005, and the DLP4710 DMD, see the reference design schematic. When a circuit board layout is created from this schematic a very small circuit board is possible. An example small board layout is included in the reference design data base. Layout guidelines should be followed to achieve a reliable projector. The optical engine that has the LED packages and the DMD mounted to it is typically supplied by an optical OEM who specializes in designing optics for DLP projectors. 8.2.3 Application Curve As the LED currents that are driven time-sequentially through the red, green, and blue LEDs are increased, the brightness of the projector increases. This increase is somewhat non-linear, and the curve for typical white screen lumens changes with LED currents is as shown in Figure 21. For the LED currents shown, it’s assumed that the same current amplitude is applied to the red, green, and blue LEDs. SPACE Figure 21. Luminance vs Current 30 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 9 Power Supply Recommendations The following power supplies are all required to operate the DMD: VDD, VDDI, VOFFSET, VBIAS, and VRESET. All VSS connections are also required. DMD power-up and power-down sequencing is strictly controlled by the DLPA3000/DLPA3005 devices. CAUTION For reliable operation of the DMD, the following power supply sequencing requirements must be followed. Failure to adhere to the prescribed power-up and power-down procedures may affect device reliability. VDD, VDDI, VOFFSET, VBIAS, and VRESET power supplies have to be coordinated during power-up and power-down operations. Failure to meet any of the below requirements will result in a significant reduction in the DMD’s reliability and lifetime. Refer to Figure 23. VSS must also be connected. 9.1 Power Supply Power-Up Procedure • • • • During power-up, VDD and VDDI must always start and settle before VOFFSET, VBIAS, and VRESET voltages are applied to the DMD. During power-up, it is a strict requirement that the delta between VBIAS and VOFFSET must be within the specified limit shown in Recommended Operating Conditions. Refer to Table 3 and the Layout Example for power-up delay requirements. During power-up, the DMD’s LPSDR input pins shall not be driven high until after VDD and VDDI have settled at operating voltage. During power-up, there is no requirement for the relative timing of VRESET with respect to VOFFSET and VBIAS. Power supply slew rates during power-up are flexible, provided that the transient voltage levels follow the requirements listed previously and in Figure 22. 9.2 Power Supply Power-Down Procedure • • • • • Power-down sequence is the reverse order of the previous power-up sequence. VDD and VDDI must be supplied until after VBIAS, VRESET, and VOFFSET are discharged to within 4 V of ground. During power-down, it is not mandatory to stop driving VBIAS prior to VOFFSET, but it is a strict requirement that the delta between VBIAS and VOFFSET must be within the specified limit shown in Recommended Operating Conditions (Refer to Note 2 for Figure 22). During power-down, the DMD’s LPSDR input pins must be less than VDDI, the specified limit shown in Recommended Operating Conditions. During power-down, there is no requirement for the relative timing of VRESET with respect to VOFFSET and VBIAS. Power supply slew rates during power-down are flexible, provided that the transient voltage levels follow the requirements listed previously and in Figure 22. Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 31 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com 9.3 Power Supply Sequencing Requirements (1) Refer to Table 3 and Figure 23 for critical power-up sequence delay requirements. (2) To prevent excess current, the supply voltage delta |VBIAS – VOFFSET| must be less than specified in Recommended Operating Conditions. OEMs may find that the most reliable way to ensure this is to power VOFFSET prior to VBIAS during power-up and to remove VBIAS prior to VOFFSET during power-down. Refer to Table 3 and Figure 23 for power-up delay requirements (3) To prevent excess current, the supply voltage delta |VBIAS – VRESET| must be less than specified limit shown in Recommended Operating Conditions. (4) When system power is interrupted, the DLPA3000/DLPA3005 initiates hardware power-down that disables VBIAS, VRESET and VOFFSET after the Micromirror Park Sequence. (5) Drawing is not to scale and details are omitted for clarity. Figure 22. Power Supply Sequencing Requirements (Power Up and Power Down) 32 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 Power Supply Sequencing Requirements (continued) Table 3. Power-Up Sequence Delay Requirement PARAMETER MIN MAX 2 UNIT tDELAY Delay requirement from VOFFSET power up to VBIAS power up VOFFSET Supply voltage level at beginning of power–up sequence delay (see Figure 23) 6 ms V VBIAS Supply voltage level at end of power–up sequence delay (see Figure 23) 6 V 12 V VOFFSET 8V VDD ≤ VOFFSET < 6 V 4V VSS tDELAY 0V VBIAS 20 V 16 V 12 V 8V VDD ≤ VBIAS < 6 V 4V VSS 0V Refer to Table 3 for VOFFSET and VBIAS supply voltage levels during power-up sequence delay. Figure 23. Power-Up Sequence Delay Requirement Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 33 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com 10 Layout 10.1 Layout Guidelines There are no specific layout guidelines for the DMD as typically DMD is connected using a board to board connector to a flex cable. Flex cable provides the interface of data and Ctrl signals between the DLPC343x controller and the DLP4710 DMD. For detailed layout guidelines refer to the layout design files. Some layout guideline for the flex cable interface with DMD are: • Match lengths for the LS_WDATA and LS_CLK signals. • Minimize vias, layer changes, and turns for the HS bus signals. Refer Figure 24. • Minimum of two 220-nF decoupling capacitor close to VBIAS. Capacitor C3 and C10 in Figure 24. • Minimum of two 220-nF decoupling capacitor close to VRST. Capacitor C1 and C9 in Figure 24. • Minimum of two 220-nF decoupling capacitor close to VOFS. Capacitor C2 and C8 in Figure 24. • Minimum of four 220-nF decoupling capacitor close to VDDI and VDD. Capacitor C4, C5, C6 and C7 in Figure 24. 10.2 Layout Example Figure 24. Power Supply Connections 34 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 DLP4710 www.ti.com DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 11 Device and Documentation Support 11.1 Device Support 11.1.1 Device Nomenclature Figure 25. Part Number Description 11.1.2 Device Markings The device marking includes the legible character string GHJJJJK DLP4710FQL. GHJJJJK is the lot trace code. DLP4710FQL is the device marking. Figure 26. DMD Marking 11.2 Related Links The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to sample or buy. Table 4. Related Links PARTS PRODUCT FOLDER SAMPLE & BUY TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY DLP4710 Click here Click here Click here Click here Click here DLPC3439 Click here Click here Click here Click here Click here DLPA3000 Click here Click here Click here Click here Click here DLPA3005 Click here Click here Click here Click here Click here Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 35 DLP4710 DLPS056A – NOVEMBER 2014 – REVISED MAY 2015 www.ti.com 11.3 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 11.4 Trademarks IntelliBright, E2E are trademarks of Texas Instruments. DLP is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners. 11.5 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 11.6 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 12 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. 36 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: DLP4710 PACKAGE OPTION ADDENDUM www.ti.com 2-Jun-2015 PACKAGING INFORMATION Orderable Device Status (1) DLP4710FQL ACTIVE Package Type Package Pins Package Drawing Qty CLGA FQL 100 80 Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Green (RoHS & no Sb/Br) Call TI Level-1-NC-NC Op Temp (°C) Device Marking (4/5) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. 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