PCM3070 datasheet(12/50 Pages) TI2

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PCM3070

SLAS724A – SEPTEMBER 2008 – REVISED NOVEMBER 2014

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Electrical Characteristics, Audio DAC Outputs (continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

RL = 16Ω, Output Stage on AVDD = 1.8V

THDN < 1%, Input CM = 0.9V,

Output CM = 0.9V

Power Delivered

RL = 16Ω Output Stage on LDOIN = 3.3V,

THDN < 1% Input CM = 0.9V,

Output CM = 1.65V

AUDIO DAC – STEREO SINGLE-ENDED HEADPHONE OUTPUT

Load = 16

Ω (single-ended), 50pF,

Headphone Output on AVDD Supply,

Input and Output CM = 0.75V; AVDD = 1.5V,

Device Setup

DOSR = 128, MCLK = 256 * fs,

Channel Gain = –2dB, word length = 20-bits;

Processing Block = PRB_P1,

Full scale output voltage (0dB)

0.375

VRMS

SNR

Signal-to-noise ratio, A-weighted(1)(2)

All zeros fed to DAC input

Dynamic range, A-weighted(1)(2)

-60dB 1kHz input full-scale signal

THD+N

Total Harmonic Distortion plus Noise

–1dB full-scale, 1kHz input signal

–83

AUDIO DAC – MONO DIFFERENTIAL HEADPHONE OUTPUT

Load = 32

Ω (differential), 50pF,

Headphone Output on LDOIN Supply

Input CM = 0.75V, Output CM = 1.5V,

AVDD = 1.8V, LDOIN = 3.0V, DOSR = 128

Device Setup

MCLK = 256 * fs, Channel (headphone driver)

Gain = 5dB for full scale output signal,

word length = 16 bits,

Processing Block = PRB_P1,

Full scale output voltage (0dB)

1778

mVRMS

SNR

Signal-to-noise ratio, A-weighted(1)(2)

All zeros fed to DAC input

Dynamic range, A-weighted(1)(2)

–60dB 1kHz input full-scale signal

THD

Total Harmonic Distortion

–3dB full-scale, 1kHz input signal

–82

RL = 32Ω, Output Stage on LDOIN = 3.3V,

THDN < 1%, Input CM = 0.9V,

136

Output CM = 1.65V

Power Delivered

RL = 32Ω Output Stage on LDOIN = 3.0V,

THDN < 1% Input CM = 0.9V,

114

Output CM = 1.5V

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