Typical Circuit Configuration
Combined with the advanced PowerTune technology, the device can cover operations from 8kHz mono
voice playback to stereo 192kHz DAC playback, making it ideal for portable battery-powered audio and
telephony applications.
The record path of the TLV320DAC3203 consists of a stereo digital microphone PDM interface (not
available when using SPI control interface) typically used at 64Fs or 128Fs.
The playback path offers signal processing blocks for filtering and effects, true differential output signal,
flexible mixing of DAC and analog input signals as well as programmable volume controls. The
TLV320DAC3203 contains two high-power output drivers which can be configured in multiple ways,
including stereo, and mono BTL. The integrated PowerTune technology allows the device to be tuned to
just the right power-performance trade-off. Mobile applications frequently have multiple use cases
requiring very low-power operation while being used in a mobile environment. When used in a docked
environment power consumption typically is less of a concern while lowest possible noise is important.
With PowerTune the TLV320DAC3203 can address both cases.
The voltage supply range for the TLV320DAC3203 for analog is 1.5V–1.95V, and for digital it is
1.26V–1.95V. To ease system-level design, a low-dropout regulator (LDO) is integrated to generate the
appropriate analog supply from input voltages ranging from 1.8V to 3.6V. Digital I/O voltages are
supported in the range of 1.1V–3.6V.
The required internal clock of the TLV320DAC3203 can be derived from multiple sources, including the
MCLK, BCLK or GPIO pins or the output of the internal PLL, where the input to the PLL again can be
derived from the MCLK, BCLK or GPIO pins. Although using the internal, fractional PLL ensures the
availability of a suitable clock signal, it is not recommended for the lowest power settings. The PLL is
highly programmable and can accept available input clocks in the range of 512kHz to 50MHz.
The device is available in the 4mm × 4mm QFN and 2.7mm × 2.7mm WCSPpackage.
1.2
Typical Circuit Configuration
Figure 1-2. Typical Circuit Configuration
11
SLAU434 – May 2012
TLV320DAC3203 Overview
Copyright © 2012, Texas Instruments Incorporated