MAX9867 查看數據表（PDF） - Maxim Integrated

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MAX9867

Ultra-Low Power Stereo Audio Codec

Maxim Integrated 

Ultra-Low Power Stereo Audio Codec

ELECTRICAL CHARACTERISTICS (continued)

(VAVDD = VPVDD = VDVDD = VDVDDIO = +1.8V, RL = ∞, headphone load (RL) connected between _OUTP and _OUTN in differential

mode, CREF = 2.2µF, CMICBIAS = CPREG = CREG = 1µF, AVPRE = +20dB, AVPGAM = 0dB, AVDAC = 0dB, AVLINE = +20dB, AVVOL =

0dB, MCLK = 13MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)

PARAMETER

Shutdown to Full Operation

Soft-Start/-Stop Time

DAC (Note 4)

Dynamic Range (Note 5)

Full-Scale Output

SYMBOL

CONDITIONS

Excludes PLL lock time

MIN TYP MAX UNITS

10

ms

10

ms

Master or slave

DR

fS = 48kHz, AVVOL = mode

0dB, TA = +25°C

Slave mode

90

84

Differential mode

1

VOLL/VOLR = 0x09

Capacitorless and

single-ended modes

0.56

dB

VRMS

Gain Error

DC accuracy, measured with respect to

full-scale output

1

5

%

Voice Path Phase Delay

PDLY

f = 1kHz, 0dBFS, HP fS = 8kHz

filter disabled, digital

input to analog output fS = 16kHz

1.2

ms

0.59

Total Harmonic Distortion

THD

MCLK = 12.288MHz, fS = 48kHz, 0dBFS,

measured at headphone outputs

-80

dB

DAC Attenuation Range

DAC Gain Adjust

AVDAC

AVGAIN

DACA = 0xF to 0x0

DACG = 00 to 11

VAVDD = VPVDD = 1.65V to 1.95V

-15

0

dB

0

+18

dB

60

78

f = 217Hz, VRIPPLE = 100mVP-P,

78

AVVOL = 0dB

Power-Supply Rejection Ratio

PSRR

f = 1kHz, VRIPPLE = 100mVP-P,

AVVOL = 0dB

dB

75

f = 10kHz, VRIPPLE = 100mVP-P,

AVVOL = 0dB

62

DAC VOICE MODE DIGITAL IIR LOWPASS FILTER

Passband Cutoff

Passband Ripple

With respect to fS within ripple; fS = 8kHz to

0.448 x

48kHz

fPLP

-3dB cutoff

fS

Hz

0.451 x

fS

f < fPLP

±0.1

dB

Stopband Cutoff

Stopband Attenuation

fSLP With respect to fS; fS = 8kHz to 48kHz

0.476 x

fS

Hz

f > fSLP, f = 20Hz to 20kHz

75

dB

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