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

Power-Supply Rejection Ratio

(Note 7)

Output Offset Voltage

Crosstalk

Capacitive Drive

Click-and-Pop Level

(Differential, Capacitorless

Modes)

Click-and-Pop Level

(SE Mode)

MICROPHONE AMPLIFIER

Preamplifier Gain

MIC PGA Gain

Common-Mode Rejection Ratio

MIC Input Resistance

SYMBOL

PSRR

CONDITIONS

VAVDD = VPVDD = 1.65V to 1.95V

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

AVVOL = 0dB

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

AVVOL = 0dB

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

AVVOL = 0dB

AVVOL = -84dB

differential mode

(LOUTP–LOUTN,

ROUTP–ROUTN),

TA = +25°C

VOS

AVVOL = -84dB

(LOUTP–LOUTN,

capacitorless

ROUTP–LOUTN),

mode

TA = +25°C

XTALK

Differential mode, POUT = 5mW, f = 1kHz

Capacitorless

mode,

POUT = 5mW,

f = 1kHz

TQFN

WLP

No sustained

oscillations

Peak voltage,

A-weighted, 32

samples per

second

RL = 32Ω

RL = ∞

Into shutdown

Out of shutdown

Peak voltage,

A-weighted, 32

samples per

second

Into shutdown

Out of shutdown

AVPRE

AVPGAM

CMRR

RIN_MIC

PALEN/PAREN = 01

PALEN/PAREN = 10

PALEN/PAREN = 11

PGAML/PGAMR = 0x1F

PGAML/PGAMR = 0x00

VIN = 100mVP-P, f = 217Hz

All gain settings

MIN TYP MAX UNITS

60

78

78

dB

75

62

±0.2 ±1.3

mV

±0.8 ±3

87

55

dB

60

500

pF

100

-80

dBV

-69

-75

dBV

-75

-0.5

0

+0.5

19.5

20

20.5

dB

29.5

30

30.5

-0.6 -0.1 +0.4

dB

19.3 19.75 20.3

50

dB

30

50

kΩ

8 _______________________________________________________________________________________

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