STMicroelectronics STA710EC

Overview

STA710EC from STMicroelectronics is an AEC-Q100 qualified, quad-band (AM/FM/WX/Band-III/Band-L), dual-channel automotive RF tuner IC for Software-Defined Radio systems. It integrates LNAs, on-chip IF filtering, a high-dynamic-range ΣΔ ADC, and configurable digital baseband interface (I²S or JESD204B), enabling concurrent analog and digital terrestrial broadcast reception (HD-Radio™, DAB, DRM) in vehicle infotainment head units.

For engineers reviewing the STA710EC datasheet, STA710EC pinout, STA710EC application, or STA710EC equivalent, key selection criteria include its dual-channel architecture for phase-diversity FM and MRC-based DAB/DRM reception, 3.3 V supply operation, -40 °C to +85 °C ambient range, 483–504 mA supply current depending on interface mode, and VFQFPN64 (9 × 9 × 1.0 mm) RoHS-compliant package.

Technical Context

The STA710EC implements two independent RF signal paths with integrated LNA stages covering AM (LW/MW/SW), FM/WX, DAB Band-III, and Band-L. Each path includes programmable gain control, image-reject mixing, and on-chip IF filtering before digitization by a built-in ΣΔ ADC with >100 dB SNR.

Its digital baseband interface supports three modes: single-ended I²S, LVDS I²S, or JESD204B (subclass 0), allowing flexible synchronization and data alignment with host application processors. The internal PLL locks to a 36.864 MHz crystal reference, generating all required RF and sampling clocks with low jitter.

Key Specifications

Pinout & Package

STA710EC is housed in a 64-pin Very Thin Quad Flat No-lead (VFQFPN) package measuring 9.0 × 9.0 × 1.0 mm, with 0.5 mm pitch, exposed thermal pad, and MSL Level 3 moisture sensitivity rating per J-STD-020D.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive digital broadcast tuner applications.

Compared with Si2176-A30-GM and TDA7706, STA710EC uniquely integrates dual-channel RF front-end, wideband AM/FM/DAB/DRM coverage, and on-chip ΣΔ ADC - enabling single-chip SDR solutions with lowest external component count and broadest standard support for next-gen automotive radios.

Availability

STA710EC is available at Aetrix Electronics and suitable for automotive infotainment head units, HD-Radio™ hybrid receivers, and DAB+ broadcast modules requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle assurance.

Supply support for STA710EC 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, Switzerland, designing and manufacturing microcontrollers, analog ICs, power devices, and sensors for automotive, industrial, and consumer applications.

The STA710 belongs to ST's automotive radio tuner product line, engineered specifically to consolidate multi-standard broadcast reception into a single CMOS die - reducing system complexity and enabling scalable SDR architectures for modern vehicle infotainment platforms.

FAQ

What crystal frequency is required for STA710EC operation?

The STA710EC requires a 36.864 MHz fundamental-mode quartz crystal connected between XTAL_IN and XTAL_OUT. This frequency is used by the internal PLL to generate precise RF local oscillator and ADC sampling clocks. Deviation beyond ±20 ppm may degrade tuning accuracy and digital baseband timing integrity.

Does STA710EC support antenna diversity switching?

Yes - the STA710EC integrates an on-chip RF switch matrix for FM band, enabling automatic or software-controlled selection between two FM inputs (FM1_IN and FM2_IN). This supports true antenna diversity reception without external PIN diode switches or relays.

Can STA710EC decode DAB signals internally?

No - STA710EC is a tuner-only device. It digitizes and outputs baseband I/Q data via I²S or JESD204B; DAB demodulation, OFDM processing, and audio decoding must be performed externally by the host application processor or dedicated DSP.

Is thermal pad soldering required for STA710EC?

Yes - the exposed thermal pad on the underside of the VFQFPN64 package must be soldered to a solid copper thermal plane on the PCB. Proper thermal pad connection is mandatory to achieve the specified R_{th j-amb} of 22 °C/W and maintain junction temperature ≤125 °C under full dual-channel operation.