PCM5102A (ACTIVE)

2VRMS DirectPath™, 112dB Audio Stereo DAC with 32-bit, 384kHz PCM Interface

 

Description

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 TI’s 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).

Features

  • Ultra Low Out-of-Band Noise
  • Integrated High-Performance Audio PLL with BCK
    Reference to Generate SCK Internally
  • Direct Line Level 2.1-VRMS Output
  • No DC Blocking Capacitors Required
  • Line Level Output Down to 1KΩ
  • Intelligent Muting System; Soft Up or Down Ramp
    and Analog Mute For 120-dB Mute SNR
  • Accepts 16-, 24-, and 32-Bit Audio Data
  • PCM Data Formats: I2S, Left-Justified
  • Automatic Power-Save Mode When LRCK And
    BCK Are Deactivated
  • 1.8 V or 3.3 V Failsafe LVCMOS Digital Inputs
  • Simple Configuration Using Hardware Pins
  • Single-Supply Operation: 14
    • 3.3 V Analog, 1.8 V or 3.3 V Digital
  • Qualified in Accordance with AEC-Q100

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Parametrics Compare all products in Audio DAC

 
DAC Channels
Analog Inputs
Analog Outputs
DAC SNR (Typ) (dB)
Sampling Rate (Max) (kHz)
Control Interface
Resolution (Bits)
Architecture
Package Size: mm2:W x L (PKG)
Approx. Price (US$)
PCM5102A PCM5100A PCM5101A
2    2    2   
0    0    0   
2    2    2   
112    100    106   
384    384    384   
H/W    H/W    H/W   
32    32    32   
Delta Sigma with line driver    Delta Sigma with line driver    Delta Sigma with line driver   
20TSSOP: 42 mm2: 6.4 x 6.5(TSSOP)    20TSSOP: 42 mm2: 6.4 x 6.5(TSSOP)    20TSSOP: 42 mm2: 6.4 x 6.5(TSSOP)   
2.39 | 1ku    0.95 | 1ku    1.20 | 1ku   

Other qualified versions of PCM5102A

Version Part Number Definition
Automotive PCM5102A-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects

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