MAX9867(2009) 查看數據表（PDF） - Maxim Integrated

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MAX9867
(Rev.:2009)

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

Total Harmonic Distortion + Noise

Power-Supply Rejection Ratio

MICROPHONE BIAS

Output Voltage

Load Regulation

Line Regulation

Power-Supply Rejection Ratio

Noise Voltage

LINE INPUT

Full-Scale Input

Line Input Level Adjust Range

Line Input Mute Attenuation

Input Resistance

Total Harmonic Distortion + Noise

AUXIN INPUT

Input DC Voltage Range

AUXIN Input Resistance

JACK SENSE OPERATION

Threshold

Pullup Current

Pullup Voltage

SYMBOL

CONDITIONS

THD+N

AVPRE = 0dB,

VIN = 1VP-P, f = 1kHz

AVPRE = +30dB,

VIN = 32mVP-P, f = 1kHz,

(1VP-P at ADC input)

PSRR

VAVDD = 1.65V to 1.95V, input referred

f = 217Hz, VRIPPLE = 100mV,

AVADC = 0dB, input referred

f = 1kHz, VRIPPLE = 100mV,

AVADC = 0dB, input referred

f = 10kHz, VRIPPLE = 100mV,

AVADC = 0dB, input referred

MIN

TYP MAX UNITS

-80

dB

-67

60

85

85

dB

80

80

VMICBIAS VAVDD = 1.8V, ILOAD = 1mA

1.5

ILOAD = 1mA to 2mA

VAVDD = 1.65V to 1.95V

PSRR

f = 217Hz, VRIPPLE = 100mVP-P

f = 10kHz, VRIPPLE = 100mVP-P

A-weighted

VIN

AVLINE = 0dB

AVLINE LIGL/LIGR = 0xF to 0x0

-6.5

f = 1kHz

RIN_LINE AVLINE = +24dB

20

THD+N VIN = 0.1VP-P, f = 1kHz, differential output

AUXEN = 1

0

RIN AUXEN = 1, 0V ≤ AUXIN ≤ 0.738

10

1.525

0.2

10

85

81

9.1

1.55

10

V

V/A

μV/V

dB

μVRMS

1.0

VP-P

+24.5

dB

100

dB

kΩ

-83

dB

0.738

V

40

MΩ

JDETEN = 1, SHDN = 1, JACKSNS

VTH

JDETEN = 1, SHDN = 0, JACKSNS,

LOUTP

JDETEN = 1, SHDN = 1,

JACKSNS = GND

IPU

JDETEN = 1, SHDN = 0,

JACKSNS = LOUTP = GND

JDETEN = 1, JACKSNS, LOUTP

0.92 x 0.95 x 0.98 x

MICBIAS MICBIAS MICBIAS

V

AVDD - AVDD - AVDD -

0.8

0.4

0.15

4

μA

4

20

AVDD

V

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