PCM1773 98dB SNR Low-Power Stereo DAC with line-out (H/W Control) | TI.com

PCM1773 (ACTIVE) 98dB SNR Low-Power Stereo DAC with line-out (H/W Control)

 

Recommended alternative parts

  • PCM1789  -  Stereo DAC, 24-bit resolution, SPI/I2C/HW controlled, 113dB SNR, -94dB THD

Description

The PCM1772 and PCM1773 devices are CMOS, monolithic, integrated circuits which include stereo digital-to-analog converters, lineout circuitry, and support circuitry in small TSSOP-16 and VQFN-20 packages.

The data converters use TI's enhanced multilevel architecture, which employs noise shaping and multilevel amplitude quantization to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1772 and PCM1773 devices accept several industry standard audio data formats with 16- to 24-bit data, left-justified, I2S, etc., providing easy interfacing to audio DSP and decoder devices. Sampling rates up to 50 kHz are supported. A full set of user-programmable functions is accessible through a 3-wire serial control port, which supports register write functions.

Features

  • Multilevel DAC Including Lineout Amplifier
  • Analog Performance (VCC1,VCC2 = 2.4 V):
    • Dynamic Range: 98 dB Typ
    • THD+N at 0 dB: 0.007% Typ
  • 1.6-V to 3.6-V Single Power Supply
  • Low Power Dissipation: 6 mW at VCC1, VCC2 = 2.4 V
  • System Clock: 128 fS, 192 fS, 256 fS, 384 fS
  • Sampling Frequency: 5 kHz to 50 kHz
  • Software Control (PCM1772):
    • 16-, 20-, 24-Bit Word Available
    • Left-, Right-Justified, and I2S
    • Slave/Master Selectable
    • Digital Attenuation: 0 dB to -62 dB, 1 dB/Step
    • 44.1-kHz Digital De-Emphasis
    • Zero Cross Attenuation
    • Digital Soft Mute
    • Monaural Analog-In With Mixing
    • Monaural Speaker Mode
  • Hardware Control (PCM1773):
    • Left-Justified and I2S
    • 44.1-kHz Digital De-Emphasis
    • Monaural Analog-In With Mixing
  • Pop-Noise-Free Circuit
  • 3.3-V Tolerant
  • Packages: TSSOP-16 and VQFN-20
  • APPLICATIONS
    • Portable Audio Player
    • Cellular Phone
    • PDA
    • Other Applications Requiring Low-Voltage Operation

Parametrics

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Part number Order 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$)
PCM1773 Order now 2     0     2     98     48     H/W     24     Multilevel Delta-Sigma     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
20VQFN: 18 mm2: 4.2 x 4.2 (VQFN | 20)    
1.55 | 1ku    
PCM1770 Order now 2     0     2     98     48     SPI     24     Multilevel Delta-Sigma     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
20VQFN: 18 mm2: 4.2 x 4.2 (VQFN | 20)    
1.55 | 1ku    
PCM1771 Samples not available 2     0     2     98     48     H/W     24     Multilevel Delta-Sigma     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
20VQFN: 18 mm2: 4.2 x 4.2 (VQFN | 20)    
1.36 | 1ku    
PCM1772 Order now 2     0     2     98     48     SPI     24     Multilevel Delta-Sigma     16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16)
20VQFN: 18 mm2: 4.2 x 4.2 (VQFN | 20)    
1.36 | 1ku    
PCM1774 Order now 2     0     2     93     50     SPI
I2C    
16     Delta-Sigma     20QFN: 16 mm2: 4 x 4 (QFN | 20)     1.30 | 1ku