HEXABITZ Moudule Audio speaker and headphone jack

H07R3x is an audio amplifier and speaker module based on ST TS4990 1.2W audio amplifier and STM32F0 MCU. This module features an on-board 8-ohm rectangular CUI speaker and a headphone output jack. Use this module to play sounds and tunes stored in the MCU embedded Flash or streamed from an external hardware/another module via array ports.

Front-End:
ST TS4990IST audio power amplifier:
1.2W output power at VCC = 5V, THD = 1%,
F = 1kHz, with 8 O load.
62dB PSRR at 217 Hz in grounded mode.
Near-zero pop and click.
CUI CDS-15118B 1W, Nd-Fe-B, 8 O speaker.
CUI SJ-3524-SMT-TR 3.5 mm, headphone stereo audio jack.
50kO potentiometer to adjust audio level (amplifier gain).
Back-End:
STM32F091CBU6 32-bit ARM Cortex-M0 MCU.
8MHz external oscillator.
Five array ports and six power ports (+3.3V and GND).
Access to 5xUART, 2xI2C, SWD, BOOT0, RESET.
Physical Properties:
Shape: Hexagon
Size: 30 mm short diagonal, 17.32 mm side
Area: 7.8 cm^2
Weight: 3 g
Soldermask Color: Dark green
Surface Finish: ENIG (gold) or HASL-LF (tin)