Overview
The DS90UB926Q-Q1 deserializer, produced by Texas Instruments, is a critical component in the FPD-Link III family designed for automotive display and image-sensing applications. It works in conjunction with the DS90UB925Q-Q1 serializer to provide a complete digital interface for the concurrent transmission of high-speed video, audio, and control data. This chipset translates a parallel RGB video interface into a single-pair high-speed serialized interface, simplifying system design and reducing interconnect size and weight.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | WQFN (NKB) | - |
| Pins | 60 | - |
| Operating Temperature Range | -40 to 105 | °C |
| Supply Voltage (VDD33) | 3.0 to 3.6 | V |
| LVCMOS Supply Voltage (VDDIO) | 1.71 to 1.89 (for 1.8V IO), 3.0 to 3.6 (for 3.3V IO) | V |
| PCLK Frequency | 5 to 85 | MHz |
| Maximum Data Rate | 2.975 Gbps | - |
| Differential Impedance | 100 | Ω |
| Maximum Cable Length | Up to 10 meters | - |
Key Features
- AEC-Q100 Qualified for Automotive Applications with Device Temperature Grade 2: –40°C to +105°C Ambient Operating Temperature
- Bidirectional Control Interface Channel with I2C-Compatible Serial Control Bus
- Supports High-Definition (720p) Digital Video Format and RGB888 + VS, HS, DE and Synchronized I2S Audio
- Single 3.3-V Operation with 1.8-V or 3.3-V Compatible LVCMOS I/O Interface
- AC-Coupled STP Interconnect up to 10 Meters
- Parallel LVCMOS Video Outputs
- DC-Balanced and Scrambled Data with Embedded Clock
- Adaptive Cable Equalization
- Supports Repeater Application
- @ SPEED Link BIST Mode and LOCK Status Pin
- Image Enhancement (White Balance and Dithering) and Internal Pattern Generation
- EMI Minimization (SSCG and EPTO)
- Low Power Modes Minimize Power Dissipation
- Backward-Compatible with FPD-Link II
Applications
- Automotive Display for Navigation
- Rear Seat Entertainment Systems
- Automotive Drive Assistance
- Automotive Megapixel Camera Systems
Q & A
- What is the primary function of the DS90UB926Q-Q1 deserializer?
The DS90UB926Q-Q1 deserializer is designed to recover high-speed video, audio, and control data from a serialized interface and provide it as parallel LVCMOS outputs. - What is the operating temperature range of the DS90UB926Q-Q1?
The operating temperature range is –40°C to +105°C. - What is the maximum data rate supported by the DS90UB926Q-Q1?
The maximum data rate is 2.975 Gbps. - What type of cable is recommended for use with the DS90UB926Q-Q1?
A shielded twisted pair (STP) cable with a differential impedance of 100 Ω is recommended. - What is the maximum length of the cable that can be used with the DS90UB926Q-Q1?
The maximum length can be up to 10 meters, depending on the cable quality and application environment. - Does the DS90UB926Q-Q1 support backward compatibility with previous FPD-Link versions?
Yes, it is backward-compatible with FPD-Link II. - What are the key features for EMI minimization in the DS90UB926Q-Q1?
The device features Spread Spectrum Clock Generation (SSCG) and Enhanced Progressive Turn-On (EPTO) for EMI minimization. - How does the DS90UB926Q-Q1 handle power management?
The device includes low power modes to minimize power dissipation. - What is the purpose of the LOCK status pin on the DS90UB926Q-Q1?
The LOCK status pin indicates whether the incoming data stream is locked without the need for a training sequence or special SYNC patterns. - Can the DS90UB926Q-Q1 be used in repeater applications?
Yes, the device supports repeater applications.
