STMicroelectronics STA660TR

Overview

STA660TR from STMicroelectronics is an AEC-Q100 qualified, ARM9- and Xp70 DSP-based SoC digital radio decoder supporting DAB, DAB+, and DMB-A standards. It simultaneously demodulates two independent digital radio streams, features dual LVDS/I²S interfaces for baseband signal input, 16-bit SDRAM interface, and operates with 1.2 V core and 3.3 V I/O supplies in a TFBGA289 package. Used in automotive infotainment head units for concurrent audio playback and traffic data reception.

For engineers reviewing the STA660TR datasheet, STA660TR pinout, STA660TR application, or STA660TR equivalent, key selection considerations include dual-channel DAB/DAB+/DMB-A demodulation capability, LVDS baseband interface compatibility, SDRAM bandwidth requirements, ARM9+Xp70 co-processing architecture, and AEC-Q100 qualification for automotive deployment.

Technical Context

The STA660TR integrates dedicated hardware accelerators for DAB/DAB+/DMB-A signal acquisition, OFDM demodulation, and channel decoding, offloading these functions from the ARM946E-S processor and Xp70 DSP. Its front-end interface (FEI) supports dual LVDS inputs for simultaneous baseband stream ingestion, while the multi-layer bus interconnect enables low-latency data routing between tuners, DSP, and SDRAM.

It implements two independent digital radio processing paths: one path handles real-time audio decoding (AAC+/HE-AAC v2) and service data parsing, while the second path concurrently processes EPG, TMC, or journaline data from a separate ensemble-enabled by parallel DDC and SLINK-based internal data channels.

Key Specifications

Pinout & Package

STA660TR is housed in a 15 mm × 15 mm × 1.2 mm TFBGA289 package with 0.8 mm ball pitch, 289 I/O balls arranged in a 17×17 array (corner A1 indexed), and compliant with ECOPACK® environmental specifications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DAB/DAB+/DMB-A multi-standard decoding applications.

Compared with STA660TR, STA670TR eliminates external tuner dependencies but increases layout complexity, while Si2168-D60 reduces integration level but offers lower power and simpler thermal management in non-automotive applications.

Availability

STA660TR is available at Aetrix Electronics and suitable for automotive infotainment head units, public transport announcement systems, and marine digital radio terminals requiring stable component supply across extended product lifecycles.

Supply support for STA660TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, analog ICs, MEMS, and automotive-grade SoCs.

The STA660TR belongs to ST's automotive digital radio SoC product line, engineered specifically for AEC-Q100-compliant, multi-standard DAB/DAB+/DMB-A reception in space-constrained, thermally demanding vehicle environments.

FAQ

What is the function of the SLINK interface in the STA660TR?

The SLINK (Serial Link) interface is a proprietary high-speed, low-latency interconnect within the STA660TR that routes demodulated baseband data directly from the front-end interface (FEI) to the Xp70 DSP and ARM9 subsystems. It operates at up to 100 MHz and ensures deterministic timing alignment between OFDM symbol boundaries and DSP processing start points-critical for maintaining DAB frame synchronization and minimizing audio artifacts during ensemble switching.

Does the STA660TR support DAB+ HE-AAC v2 decoding in hardware or software?

The STA660TR performs HE-AAC v2 audio decoding entirely in software on its integrated Xp70 DSP, leveraging optimized libraries stored in internal I-TCM and D-TCM memory. Hardware acceleration is limited to OFDM demodulation, channel decoding, and error correction; audio decoding relies on DSP instruction-level parallelism and fixed-point arithmetic, achieving full stereo decode at ≤128 kbps with <200 ms end-to-end latency.

Can the STA660TR operate with only one RF tuner connected?

Yes-the STA660TR supports single-tuner configurations where both audio and service data are extracted from the same DAB ensemble. In this mode, the device time-multiplexes its dual demodulation paths to process audio frames and service data packets from one baseband stream, enabling concurrent listening and data reception (e.g., audio + journaline) without requiring a second tuner or LVDS input channel.

What are the SDRAM timing requirements for reliable STA660TR operation?

The STA660TR requires an external 16-bit SDRAM with CL2/CL3 timing, tRCD ≥ 20 ns, tRP ≥ 20 ns, and tRC ≥ 60 ns. It supports 128 Mb density (16 M × 16) and operates the SDRAM controller at 133 MHz (7.5 ns clock period). The device internally manages refresh cycles and does not require external refresh control, simplifying PCB layout and reducing MCU intervention during active decoding.