Overview
The DS90UR905Q-Q1, produced by Texas Instruments, is a 5- to 65-MHz, 24-bit Color FPD-Link II serializer. This component is part of the DS90UR90xQ-Q1 chipset, which includes both the serializer (DS90UR905Q-Q1) and the deserializer (DS90UR906Q-Q1). The chipset is designed to translate a parallel RGB video interface into a high-speed serialized interface over a single pair of wires, simplifying system design by eliminating skew problems between clock and data signals.
This serializer embeds the clock, balances the data payload, and level shifts the signals to high-speed, low voltage differential signaling. It supports up to 24 inputs along with three video control signals, enabling full 24-bit color or 18-bit color and 6 general-purpose signals, such as those used in Audio I2S applications.
Key Specifications
| Parameter | Description |
|---|---|
| PCLK Frequency | 5- to 65-MHz (140 Mbps to 1.82 Gbps) |
| Color Depth | 24-bit color (RGB888) |
| Interconnect Cable | AC-Coupled STP up to 10 meters |
| Integrated Terminations | Yes, on both serializer and deserializer |
| Operating Temperature Range | -40°C to +105°C (AEC-Q100 grade 2 qualified) |
| Package Type | WQFN (48 pins for serializer, 60 pins for deserializer) |
| ESD Rating | >8-kV HBM and ISO 10605 |
| I/O Interface | 1.8-V or 3.3-V compatible LVCMOS |
Key Features
- Supports 5- to 65-MHz PCLK frequencies (140 Mbps to 1.82 Gbps)
- AC-Coupled STP interconnect cable up to 10 meters
- Integrated terminations on both serializer and deserializer
- At speed link BIST mode and reporting pin
- Optional I2C-compatible serial control bus
- RGB888 + VS, HS, DE support
- Power down mode to minimize power dissipation
- Automotive-grade product: AEC-Q100 grade 2 qualified
- Backward compatible mode for operation with older generation devices
- Selectable output VOD and adjustable de-emphasis on serializer
- FAST random data lock; no reference clock required on deserializer
- Adjustable input receiver equalization on deserializer
- LOCK (real time link status) reporting pin on deserializer
- EMI minimization on output parallel bus (SSCG) on deserializer
- Output slew control (OS) on deserializer
Applications
- Automotive displays for navigation
- Automotive displays for entertainment
- Other applications requiring high-speed video transmission over long distances with minimal signal degradation
Q & A
- What is the primary function of the DS90UR905Q-Q1 serializer?
The primary function is to translate a parallel RGB video interface into a high-speed serialized interface over a single pair of wires.
- What is the supported PCLK frequency range for the DS90UR905Q-Q1?
The supported PCLK frequency range is 5- to 65-MHz (140 Mbps to 1.82 Gbps).
- What type of interconnect cable is supported by the DS90UR905Q-Q1?
AC-Coupled STP interconnect cable up to 10 meters is supported.
- Is the DS90UR905Q-Q1 automotive-grade qualified?
Yes, it is AEC-Q100 grade 2 qualified.
- What is the ESD rating of the DS90UR905Q-Q1?
The ESD rating is >8-kV HBM and ISO 10605.
- Does the DS90UR905Q-Q1 support I2C-compatible serial control bus?
Yes, it supports an optional I2C-compatible serial control bus.
- What is the power down mode feature of the DS90UR905Q-Q1?
The power down mode minimizes power dissipation.
- Can the DS90UR905Q-Q1 operate with older generation devices?
Yes, it has a backward compatible mode for operation with older generation devices.
- What is the package type and pin count for the DS90UR905Q-Q1 serializer?
The package type is WQFN with 48 pins.
- How does the DS90UR906Q-Q1 deserializer recover data from the serial stream?
The DS90UR906Q-Q1 deserializer recovers the data (RGB) and control signals and extracts the clock from the serial stream without the need for a reference clock or training sequence.
