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Texas Instruments DLPC3421ZVB
- Part No.:
- DLPC3421ZVB
- Manufacturer:
- Texas Instruments
- Category:
- Display Drivers
- Package:
- 176-VFBGA
- Datasheet:
-
DLPC3421ZVB.pdf
- Description:
- DLP DISPLAY CONTROLLER FOR DLP16
- Quantity:
- Payment:
- Shipping:
Inventory:4,433
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Product details
Overview
DLPC3421ZVB from Texas Instruments is a digital display controller IC designed to drive the DLP160CP digital micromirror device (DMD) in compact projection systems. It supports nHD (640×360 @ 360Hz) and HD (1280×720 @ 60Hz) modes, features embedded eDRAM, MIPI DSI (up to 4 lanes, 470Mbps/lane), and parallel pixel interface (up to 155MHz pixel clock). It enables mobile projector and pico-display applications with active power management and 1D keystone correction.
For engineers reviewing the DLPC3421ZVB datasheet, DLPC3421ZVB pinout, DLPC3421ZVB application, or DLPC3421ZVB equivalent, key selection considerations include DMD interface compatibility (Sub-LVDS/low-speed serial), dual-mode resolution support, integrated frame memory, programmable LED current control, and co-design requirements with DLPA200x/3000 PMICs.
Technical Context
The DLPC3421ZVB implements a dual-path video processing pipeline: one optimized for high-frame-rate nHD mode using parallel input and Sub-LVDS DMD interface, and another for HD mode supporting FPD-Link via FPGA or native MIPI DSI. Its internal eDRAM buffers full frames for real-time pixel processing including CAIC, LABB, and degamma.
It integrates dedicated hardware blocks for DMD timing control (PARKZ, DMD_DEN_ARSTZ), system-level synchronization (HOST_IRQ, ACT_SYNC), and multi-protocol host interfacing (I²C, SPI, GPIO-configurable DSI lane count). Clocking relies on a configurable PLL driven by an external 27MHz crystal on PLL_REFCLK_I.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| nHD Mode Resolution | 640×360 pixels - enables compact pico-projector optics with minimal light engine footprint |
| HD Mode Resolution | 1280×720 pixels - supports mainstream HD display output without external frame buffer |
| Max Input Frame Rate | 360Hz in nHD mode - allows ultra-smooth motion rendering for AR glasses and fast-scanning projectors |
| MIPI DSI Support | 1–4 lanes, up to 470Mbps/lane - provides scalable bandwidth for mobile SoC integration with low EMI |
| Parallel Pixel Clock | Up to 155MHz - accommodates WVGA/HD RGB888 input without pixel dropping |
| Embedded Memory | eDRAM frame buffer - eliminates need for external SDRAM, reducing BOM cost and PCB area |
| DMD Interface | Sub-LVDS + low-speed serial - ensures precise mirror timing control and reliable parking sequence execution |
Pinout & Package
DLPC3421ZVB is housed in a 176-pin NFBGA package with 7.00mm × 7.00mm body size and 0.5mm pitch. The package supports fine-pitch routing for high-density portable designs and thermal dissipation via exposed die pad (not shown in top-view pinout).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PDATA_0–PDATA_23 | Parallel RGB888 input data bus | 24-bit pixel data path supporting full HD input; mapped as B[7:0]/G[7:0]/R[7:0] in typical configuration |
| PCLK, HSYNC_CS, VSYNC_WE | Parallel timing interface | Synchronizes incoming video stream; polarity software-configurable to match host SoC output |
| DCLKN/DCLKP, DD0N/DD0P–DD3N/DD3P | MIPI DSI differential lanes | LVDS-coupled clock and up to four data lanes; DSI lane count set at boot via GPIO_01/GPIO_02 |
| DMD_HS_WDATA_A–H_P/N, DMD_HS_CLK_P/N | DMD Sub-LVDS write interface | High-speed mirror address/data transmission to DLP160CP; true pin mapping depends on firmware configuration |
| DMD_DEN_ARSTZ, PARKZ | DMD control signals | Active-high enable / active-low reset and fast-park trigger; coordinated with DLPA200x for safe power sequencing |
| IIC0_SDA/IIC0_SCL | Secondary I²C control port | 3.6V-tolerant interface for configuring DLPA200x/3000 PMIC and peripheral devices; powered by VCC_INTF |
| HOST_IRQ, RESETZ | System coordination signals | HOST_IRQ signals initialization completion; RESETZ is hysteresis-buffered power-on reset input requiring stable supplies before de-assertion |
Key Features
| Feature | Design Value |
|---|---|
| Content Adaptive Illumination Control (CAIC) | Real-time LED brightness modulation per frame region to extend battery life and reduce thermal load in mobile projectors |
| Local Area Brightness Boost (LABB) | Dynamic contrast enhancement applied to localized image regions without global gamma shift, preserving shadow detail |
| 1D Keystone Correction | Hardware-accelerated vertical trapezoidal distortion correction for off-axis projection onto flat surfaces |
| Programmable Degamma | Configurable LUT-based gamma adjustment per color channel to match display panel or projection surface response |
| Auto DMD Parking at Power Down | Ensures micromirrors return to safe neutral state before power removal, preventing mechanical stress and extending DMD lifetime |
Applications
| Mobile Projector | Smart Display |
|---|---|
Use Scenario: Pocket-sized projector integrated into smartphones or standalone pico units projecting onto walls or ceilings. IC Role / Device Role / Timing Role: Primary display controller managing DMD timing, pixel data formatting, and LED current control synchronized to mirror actuation. Use Value: Enables 360Hz nHD operation for flicker-free projection and CAIC-driven power savings critical for battery-powered devices. | Use Scenario: Embedded smart home display with built-in projection capability for interactive UI overlays on kitchen cabinets or mirrors. IC Role / Device Role / Timing Role: Video processor and DMD interface controller handling HDMI-to-DMD conversion, splash screen generation, and ambient light-adaptive brightness. Use Value: Leverages embedded eDRAM and programmable degamma to deliver consistent color fidelity across varying lighting conditions without external memory. |
| Augmented Reality Glasses | Pico Projector |
Use Scenario: Near-eye display system projecting virtual imagery onto waveguide combiners with precise eye-box alignment. IC Role / Device Role / Timing Role: Low-latency display controller providing 1D keystone correction and sub-frame synchronization for stereo 3D rendering. Use Value: Supports 3DR input and GPIO_04 3D glasses shutter control, enabling seamless left/right frame alternation with <1ms timing accuracy. | Use Scenario: Portable conference room projector with auto-focus and keystone correction, mounted on tripod or ceiling bracket. IC Role / Device Role / Timing Role: Central video controller coordinating DMD, focus motor (via GPIO_18 MTR_SENSE), and thermal monitoring (GPIO_10/11 RC_CHARGE/thermistor enable). Use Value: Integrates motor sense input and thermistor interface to enable closed-loop focus and thermal derating-eliminating need for discrete sensor ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar display controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DLPC3430ZVB | Supports DLP2000 DMD (0.20-inch), higher resolution (1920×1080), no nHD mode; requires different DMD interface timing | Targeted at larger-form-factor HD projectors with higher lumen output; not compatible with DLP160CP | Select DLPC3430ZVB only when upgrading to DLP2000 and requiring full HD native resolution |
| DLPC3435ZVB | Adds integrated 3D pattern generator and enhanced LABB algorithm; same DLP160CP support and pinout as DLPC3421ZVB | Optimized for consumer AR glasses requiring embedded 3D pattern sync and advanced local dimming | DLPC3435ZVB is a functional superset with identical DMD interface-drop-in replacement where 3D pattern gen is needed |
Compared with DLPC3421ZVB, DLPC3430ZVB targets larger DMDs and lacks nHD optimization, while DLPC3435ZVB extends its feature set with 3D pattern generation and enhanced LABB-both share the same ZVB package but differ in firmware-defined capabilities and DMD compatibility.
Availability
DLPC3421ZVB is available at Aetrix Electronics and suitable for mobile projector, smart display, and augmented reality glasses applications requiring stable component supply, long-term lifecycle support, and TI-authorized traceable sourcing.
Supply support for DLPC3421ZVB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a U.S.-based semiconductor company specializing in analog, embedded processing, and DLP technology, with over 50 years of leadership in precision analog and digital signal processing.
The DLPC3421ZVB belongs to TI's DLP® Display Controller product line, engineered specifically for ultra-compact projection systems using DLP160CP, emphasizing low-power operation, integrated video processing, and seamless PMIC co-design with DLPA200x/3000.
FAQ
What display resolutions does the DLPC3421ZVB support?
The DLPC3421ZVB supports two distinct operating modes: nHD mode delivers 640×360 resolution at up to 360Hz frame rate, while HD mode supports 1280×720 at up to 60Hz. Both modes accept input resolutions up to WVGA and HD respectively, and the controller performs necessary scaling and format conversion internally. The DLPC3421ZVB does not support 4K or QHD resolutions.
Which DMD devices is the DLPC3421ZVB designed to drive?
The DLPC3421ZVB is explicitly designed for the DLP160CP digital micromirror device, as confirmed in TI's official documentation and chipset architecture. It implements the precise Sub-LVDS timing, bias voltage sequencing (VBIAS, VOFFSET, VRESET), and parking protocols required by the DLP160CP. It is not compatible with DLP2000, DLP3010, or other DMD families.
Does the DLPC3421ZVB require an external frame memory?
No, the DLPC3421ZVB includes embedded eDRAM that serves as a full-frame buffer, eliminating the need for external SDRAM or DDR memory in most configurations. This reduces system BOM cost, PCB area, and power consumption. External flash is still required for firmware storage, but video frame buffering is handled entirely on-die.
What power management ICs are recommended for use with the DLPC3421ZVB?
Texas Instruments specifies DLPA2000, DLPA2005, and DLPA3000 as companion PMICs for the DLPC3421ZVB. These integrate DMD bias generation (VOFFSET, VBIAS, VRESET), LED current drivers, and system power sequencing. The DLPC3421ZVB communicates with them via I²C and coordinates PARKZ signaling and PROJ_ON handshaking for safe power-up/down transitions.
How is MIPI DSI lane count configured on the DLPC3421ZVB?
The number of active MIPI DSI lanes (1–4) is determined at boot time by sampling GPIO_01 and GPIO_02, which must be pulled high or low via external resistors per Table 4-8 in the datasheet. After initialization, these pins revert to SPI1 functions. Lane count cannot be changed dynamically during runtime and requires hardware configuration prior to power-up.
DLPC3421ZVB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 176-VFBGA
- Packaging:
- Tray
- Product Status:
- Active
- Display Type:
- DLP
- Configuration:
- -
- Interface:
- I2C, SPI
- Digits or Characters:
- -
- Current - Supply:
- 69 mA
- Voltage - Supply:
- 1.045V ~ 1.155V, 1.64V ~ 1.96V
- Operating Temperature:
- -30°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 176-NFBGA (7x7)
DLPC3421ZVB FAQ
1.How can I place an order for DLPC3421ZVB through Aetrix?
Please submit a Request for Quotation (RFQ) for DLPC3421ZVB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DLPC3421ZVB reliable?
The price and inventory of DLPC3421ZVB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DLPC3421ZVB is usually 5 days.
3.What payment methods are accepted for DLPC3421ZVB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DLPC3421ZVB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DLPC3421ZVB?
DLPC3421ZVB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DLPC3421ZVB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DLPC3421ZVB?
For technical support, including DLPC3421ZVB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DLPC3421ZVB requirements.
6.How does Aetrix verify that DLPC3421ZVB is sourced from the original manufacturer or authorized distributors?
All DLPC3421ZVB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DLPC3421ZVB meets industry standards.
7.What is the process for return or replacement of DLPC3421ZVB?
All DLPC3421ZVB units undergo pre-shipment inspection (PSI). If there is an issue with DLPC3421ZVB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DLPC3421ZVB part is unused and in its original packaging.
Return procedure for DLPC3421ZVB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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