ASA Motion Link
The ASA (Automotive SerDes Alliance) Motion link-compliant solution to securely distributes video and sensor data within the Automotive ADAS systems.
Quad-Port SerDes for ASA Motion Link
- This page contains information on a preproduction product. Specifications and information herein are subject to change without notice. For additional information please contact your sales representative.
The AVL140XX family of quad-port serializer/deserializer (SerDes) provides an Automotive SerDes Alliance (ASA) Motion Link–compliant solution to securely distribute video and sensor data within Automotive Advanced Driver Assistance Systems (ADAS) systems.
A pair of AVL140XX devices supports multi‑gigabit connections for high-resolution camera, lidar and radar sensors used in safety-critical ADAS and autonomous driving systems. It does so by converting the high-speed video from the Mobile Industry Processor Interface Alliance (MIPI) Camera Serial Interface-2 (CSI-2) interface and data from the control interfaces to an ASA Motion Link interface and vice versa.
Each of the four ASA ports on these devices can be configured in firmware either as a transmitter (serializer mode) or a receiver (deserializer mode), enabling several use cases with a single SerDes device. Each ASA port on the AVL140XX chipsets can support line rates from 2 Gbit/s - 16 Gbit/s (Speed Grades 1/2/3/4/5) over a single low-cost 50 Ω Coax or 100 Ω shielded twisted pair (STP) cable. The ASA Motion Link physical layer (PHY) is based on time-division duplexing (TDD), resulting in lower power consumption, implementation complexity and solution size.
The AVL140XX family of SerDes devices supports the complete ASA security framework, including standardized interoperable link-based security as well as a 3-level Key Exchange Entity to ensure device/data authentication and protection across the automotive supply chain. These SerDes devices also include a suite of functional safety and diagnostic features that provide end-to-end link monitoring and reliability for safety-critical ADAS and autonomous driving applications.
製品詳細
Features
Line Side Interfaces
-
Quad ASA Motion Link–compliant ports:
- Downstream rates: 16 Gbps / 12 Gbps / 8 Gbps / 4 Gbps / 2 Gbps
- Upstream rates: 100 Mbps / 50 Mbps
System Side Interfaces
-
Dual MIPI CSI-2 ports (v2.1 compliant):
- Each port configurable in DPHY or CPHY mode
- Differential physical layer (DPHY) v1.2 mode supports up to 4 data lanes at 3.6 Gb/s per lane
- Combo physical layer (CPHY) v1.2 mode supports up to 3 Trios at 4 Gsym/s or 9.12 Gb/s per trio
- Ultra‑low‑latency bidirectional inter-integrated circuit (I²C), niversal asynchronous receiver-transmitter (UART) and general purpose input/output (GPIO) control channels
Power
- 50 Ω Coax up to 15 meters with Power Delivery (PD)
- 100 Ω STP cable up to 10 meters with PD
Automotive Functional Safety
- Dedicated safety monitors and built-in self-test (BIST)
- Comprehensive safety and diagnostic features for end-to-end link monitoring and reliability
Security
- Comprehensive link security (based on ASA Motion Link specifications) provides authentication, encryption and integrity check
- Integrated ARM® CPU supports secure boot and performs key management
Synchronization
- Precision Time Base (PTB) mechanism enables precise timing synchronization by using time stamping
Automotive Qualified
- AEC-Q100 Grade 2 temperature range of -40 °C to 105 °C
Product Standards