Overview
The DS90UB921-Q1 serializer, produced by Texas Instruments, is a cutting-edge solution designed for automotive display and image sensing applications. This component, part of the FPD-Link III family, provides a complete digital interface for the concurrent transmission of high-speed video, audio, and control data. When paired with a compatible deserializer (such as DS90UB922-Q1, DS90UB926Q-Q1, DS90UB928Q-Q1, DS90UB948-Q1, or DS90UB940-Q1), it offers a seamless and efficient data transmission system. The chipset is particularly suited for automotive video-display systems supporting WVGA and HD formats, and it incorporates an embedded bidirectional control channel and low latency GPIO controls.
Key Specifications
| Specification | Details |
|---|---|
| Package | WQFN (RHS) - 48 pins |
| Operating Temperature Range | -40°C to 105°C |
| Package Quantity | Carrier 1,000 (LARGE T&R) |
| Device Temperature Grade | Grade 2: -40°C to +105°C |
| ESD Classification | HBM: ±8kV, CDM: C6 |
| PCLK Frequency Range | STP mode: 5 – 96MHz, Coax mode: 15 – 96MHz |
| Video Format | Supports Extended High Definition (1920x720p/60Hz) |
| Video Inputs | Parallel LVCMOS Video Inputs |
| GPIO Channels | 4 Optional Bidirectional GPIO Channels |
| Control Interface | Bidirectional Control Interface with I²C Compatible Serial Control Bus |
| Interconnect | AC-Coupled Coax or STP Interconnect up to 10 meters |
| Power Supply | Single 3.3 V Operation with 1.8 V or 3.3 V Compatible LVCMOS I/O Interface |
Key Features
- Qualified for Automotive Applications and AEC-Q100 Certified
- Supports Extended High Definition (1920x720p/60Hz) Digital Video Format
- Embedded bidirectional control channel and low latency GPIO controls
- Converts parallel interface into a single pair high-speed serialized interface using FPD-Link III serial bus scheme
- Up to 24 data bits serialized along the video control signals
- Low voltage swing signaling, data scrambling, randomization, and spread spectrum clocking compatibility to minimize EMI
- Internal pattern generation and low power modes to minimize power dissipation
- Optional I²S support and remote interrupts from the downstream deserializer mirrored to a local output pin
Applications
The DS90UB921-Q1 serializer is ideally suited for automotive video-display systems, particularly those supporting WVGA and HD formats. It is designed for advanced automotive systems requiring high-speed data transmission, such as display and image sensing applications. The component's robust feature set and compliance with automotive standards make it an excellent choice for designers in the automotive and industrial sectors.
Q & A
- What is the primary function of the DS90UB921-Q1 serializer?
The DS90UB921-Q1 serializer provides a complete digital interface for the concurrent transmission of high-speed video, audio, and control data for automotive display and image sensing applications. - What is the operating temperature range of the DS90UB921-Q1?
The operating temperature range is -40°C to 105°C. - What types of video formats does the DS90UB921-Q1 support?
The DS90UB921-Q1 supports Extended High Definition (1920x720p/60Hz) digital video format. - How does the DS90UB921-Q1 minimize electromagnetic interference (EMI)?
It uses low voltage swing signaling, data scrambling, randomization, and spread spectrum clocking compatibility to minimize EMI. - What is the maximum length of the interconnect supported by the DS90UB921-Q1?
The DS90UB921-Q1 supports AC-coupled coax or STP interconnect up to 10 meters. - Does the DS90UB921-Q1 support bidirectional control communication?
Yes, it supports bidirectional control communication over a single link using the FPD-Link III serial bus scheme. - What is the power supply requirement for the DS90UB921-Q1?
The DS90UB921-Q1 operates on a single 3.3 V power supply with 1.8 V or 3.3 V compatible LVCMOS I/O interface. - Is the DS90UB921-Q1 qualified for automotive applications?
Yes, it is qualified for automotive applications and is AEC-Q100 certified. - How many GPIO channels does the DS90UB921-Q1 support?
The DS90UB921-Q1 supports 4 optional bidirectional GPIO channels. - Can the DS90UB921-Q1 handle remote interrupts from the downstream deserializer?
Yes, remote interrupts from the downstream deserializer are mirrored to a local output pin.
