Overview
The DS90UB928Q-Q1 is a FPD-Link III deserializer produced by Texas Instruments, designed for automotive infotainment systems. This device works in conjunction with the DS90UB925Q-Q1 or DS90UB927Q-Q1 serializer to distribute digital video and audio. It converts a high-speed serialized interface with an embedded clock, delivered over a single signal pair (FPD-Link III), into four LVDS data/control streams, one LVDS clock pair, and I2S audio data. This consolidation of audio, video, and control data over a single differential pair reduces interconnect size and weight, eliminates skew issues, and simplifies system design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | WQFN (RHS) | - |
| Pins | 48 | - |
| Operating Temperature Range | -40°C to 105°C | °C |
| Supply Voltage (VDD33) | -0.3 to 4 | V |
| Supply Voltage (VDDIO) | -0.3 to 4 | V |
| LVCMOS I/O Voltage | -0.3 to (VDDIO + 0.3) | V |
| Junction Temperature | 150 | °C |
| Storage Temperature | -65 to 150 | °C |
| Pixel Clock Support | 5 MHz to 85 MHz | - |
| ESD Ratings (HBM) | ±8 kV | - |
| ESD Ratings (CDM) | ±1250 V | - |
Key Features
- Qualified for Automotive Applications AEC-Q100
- Device Temperature Grade 2: -40°C to +105°C Ambient Operating Temperature Range
- Bidirectional Control Channel Interface with I2C Compatible Serial Control Bus
- Low EMI FPD-Link Video Output
- Supports High Definition (720p) Digital Video
- RGB888 + VS, HS, DE and I2S Audio Supported
- Up to 4 I2S Digital Audio Outputs for Surround Sound Applications
- 4 Bidirectional GPIO Channels with 2 Dedicated Pins
- Single 3.3 V supply with 1.8 V or 3.3 V Compatible LVCMOS I/O Interface
- AC-Coupled STP Interconnect Up to 10 Meters
- DC-Balanced and Scrambled Data with Embedded Clock
- Adaptive Cable Equalization
- Image Enhancement (White Balance & Dithering) and Internal Pattern Generation
- Backward Compatible Modes
Applications
- Automotive Displays for Navigation
- Rear Seat Entertainment Systems
- Automotive Driver Assistance
- Automotive Megapixel Camera Systems
Q & A
- What is the primary function of the DS90UB928Q-Q1?
The DS90UB928Q-Q1 is a deserializer that converts a high-speed serialized interface with an embedded clock into four LVDS data/control streams, one LVDS clock pair, and I2S audio data for use in automotive infotainment systems.
- What is the operating temperature range of the DS90UB928Q-Q1?
The operating temperature range is -40°C to 105°C.
- What types of ESD protection does the DS90UB928Q-Q1 offer?
The device offers Human Body Model (HBM) ESD protection of ±8 kV and Charged Device Model (CDM) ESD protection of ±1250 V.
- What is the pixel clock support range of the DS90UB928Q-Q1?
The pixel clock support range is from 5 MHz to 85 MHz.
- Does the DS90UB928Q-Q1 support high-definition video?
Yes, it supports High Definition (720p) digital video.
- How many I2S digital audio outputs does the DS90UB928Q-Q1 support?
It supports up to 4 I2S digital audio outputs for surround sound applications.
- What is the maximum length of the AC-coupled STP interconnect supported by the DS90UB928Q-Q1?
The maximum length is up to 10 meters.
- Does the DS90UB928Q-Q1 have adaptive cable equalization?
Yes, it features adaptive cable equalization to compensate for transmission medium losses and deterministic jitter.
- What image enhancements does the DS90UB928Q-Q1 offer?
The device offers image enhancement features such as white balance and dithering, along with internal pattern generation.
- Is the DS90UB928Q-Q1 backward compatible with other modes?
Yes, it is backward compatible with other modes.
