The PCM510xA devices are a family of monolithic CMOS-integrated circuits that include a stereo digital-to-analog converter and additional support circuitry in a small TSSOP package. The PCM510xA devices use the latest generation of TIs advanced segment-DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter.
Using Directpath™ charge-pump technology, the PCM510xA devices provide 2.1-VRMS ground centered outputs, allowing designers to eliminate DC blocking capacitors on the output, as well as external muting circuits traditionally associated with single-supply line drivers.
The integrated line driver surpasses all other charge-pump based line drivers by supporting loads down to 1 kΩ per pin.
The integrated PLL on the device removes the requirement for a system clock (commonly known as master clock), allowing a 3-wire I2S connection and reducing system EMI.
Intelligent clock error and PowerSense undervoltage protection utilizes a two-level mute system for pop-free performance.
Compared with many conventional switched capacitor DAC architectures, the PCM510xA family offers up to 20 dB lower out-of-band noise, reducing EMI and aliasing in downstream amplifiers/ADCs, measured from the traditional 100-kHz OBN measurements to 3 MHz).
|DAC SNR (Typ) (dB)|
|Sampling Rate (Max) (kHz)|
|Package size: mm2:W x L (PKG)|
|Approx. price (US$)|
|Delta Sigma with line driver||Delta Sigma with line driver||Delta Sigma with line driver|
|20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)||20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)||20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)|
|2.39 | 1ku||0.95 | 1ku||1.20 | 1ku|