Description - ST STM32 User Manual

Description

2 Description
The STM32 performance line USB demonstration kit is designed to demonstrate several
STMicroelectronics products:
● The TS4657 is a stereo DAC that integrates a high-performance audio line driver
capable of generating a 2.2 V
single supply is sufficient for the digital and analog parts of the circuit, thus eliminating
the need for external regulators. The TS4657 is a low-power consumption device. It
features only 22 mW power dissipation at a 3.0 V power supply in full operation.
A 16-bit multi-bit sigma delta DAC is used, operating at 256 x Fs (where Fs is the
sampling frequency) with oversampling digital interpolation filters. The digital audio
data can be 16 to 24-bit long and sample rates from 32 to 48 kHz are supported. The
TS4657 is packaged in a small 4 x 4 mm QFN20 package, ideal for portable
applications.
●
The STM32F103xx performance line family incorporates the high-performance ARM
Cortex™-M3 32-bit RISC core operating at a 72 MHz frequency, high-speed embedded
memories (Flash memory up to 128 KB and SRAM up to 20 KB), and an extensive
range of enhanced I/Os and peripherals connected to two APB buses. All devices offer
two 12-bit ADCs, three general purpose 16-bit timers plus one PWM timer, as well as
standard and advanced communication interfaces: up to two I
USARTs, a USB and a CAN. The STM32F103xx performance line family operates from
a 2.0 to 3.6 V power supply. It is available in both the –40 to +85 °C temperature range
and the –40 to +105 °C extended temperature range. A comprehensive set of power-
saving mode allows designing low-power applications. The complete STM32F103xx
performance line family includes devices in 5 different package types: from 36 pins to
100 pins.
●
The TS2012 is a fully differential stereo Class-D power amplifier able to drive up to
1.15 W into a 8 Ω load at 5 V per channel. It achieves better efficiency compared to
typical Class-AB audio amps. Pop and click reduction circuitry provides low on/off
switch noise while allowing the device to start within 8 ms.
●
The TS4962 is a differential Class-D BTL power amplifier. It is able to drive up to 2.3 W
into a 4 Ω load and 1.4 W into a 8 Ω load at 5 V. It achieves outstanding efficiency
(88 % typ.) compared to classical Class-AB audio amps. Pop and click reduction
circuitry provides low on/off switch noise while allowing the device to start within 5 ms.
A standby function (active low) allows to reduce the current consumption down to 10 nA
typical.
●
The TS472 is a differential-input microphone preamplifier optimized for high-
performance, PDA and notebook audio systems. This device features an adjustable
gain from 0dB to 40 dB with excellent power-supply and common-mode rejection ratios.
In addition, the TS472 has a very low-noise microphone bias generator of 2 V. It also
includes a complete shutdown function, with active low standby mode.
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output level from a single 3.0 to 5.5 V supply. One
RMS
Doc ID 15867 Rev 1
UM0722
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Cs and SPIs, three