98dB SNR Low-Power Stereo DAC with line-out (S/W Control) - PCM1772

PCM1772 (ACTIVE)

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

Recommended alternative parts

  • PCM5121  -  106dB Stereo DAC with 32bit resolution, up 384kHz sampling frequency, S/W control, no mono line in
  • PCM5122  -  112dB Stereo DAC with 32bit resolution, up 384kHz sampling frequency, S/W control, no mono line in

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

View more

Parametrics Compare all products in Audio DAC

 
DACs (#)
# Inputs / # Outputs
DAC SNR (Typ) (dB)
Architecture
Resolution (Bits)
Control Interface
Digital Audio Interface
THD+N(Typ) (%)
Additional Features
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
Rating
PCM1772 PCM1770 PCM1771 PCM1773 PCM1774
2     2     2     2     2    
0 / 2     0 / 2     0 / 2     0 / 2     0 / 2    
98     98     98     98     93    
Multilevel Delta-Sigma     Multilevel Delta-Sigma     Multilevel Delta-Sigma     Multilevel Delta-Sigma     Delta-Sigma    
24     24     24     24     16    
SPI     SPI     H/W     H/W     SPI
I2C    
L
R
I2S    
L
R
I2S    
L
I2S    
L
I2S    
L
R
I2S
DSP    
0.007     0.04     0.007     0.008     0.002    
  HP Out     HP Out       Headphone
Mix    
0 to 70     0 to 70     0 to 70     0 to 70     -40 to 85    
16TSSOP
20VQFN    
16TSSOP
20VQFN    
16TSSOP
20VQFN    
16TSSOP
20VQFN    
20QFN    
1.35 | 1ku     1.32 | 1ku     1.39 | 1ku     1.39 | 1ku     1.30 | 1ku    
Catalog     Catalog     Catalog     Catalog     Catalog    

Featured tools and software

Click Here