MAX9880A 데이터 시트보기 (PDF) - Maxim Integrated

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MAX9880A

Low-Power, High-Performance Dual I2S Stereo Audio Codec

Maxim Integrated 

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

ELECTRICAL CHARACTERISTICS (continued)

(VAVDD = VPVDD = VMICVDD = VDVDD = VDVDDS1 = +1.8V, RL = ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

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

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

PARAMETER

SYMBOL

CONDITIONS

Passband Ripple

f < fPLP

Stopband Cutoff

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

Stopband Attenuation

f > fSLP, f = 20Hz to 20kHz

ADC STEREO AUDIO MODE DIGITAL DC-BLOCKING HIGHPASS FILTER

Passband Cutoff

(-3dB from Peak)

fAHPPB AVFLT = 0x1

DC Attenuation

DCATTEN AVFLT = 0x1

OUTPUT VOLUME CONTROL

VOLL/VOLR = 0x00

VOLL/VOLR = 0x01

VOLL/VOLR = 0x02

Output Volume Control

(Note 8)

VOLL/VOLR = 0x04

VOLL/VOLR = 0x08

VOLL/VOLR = 0x10

VOLL/VOLR = 0x20

VOLL/VOLR = 0x27

VOLL/VOLR = 00x00 to 0x06 (+9dB to +6dB)

Output Volume Control

Step Size

VOLL/VOLR = 00x06 to 0x0F (+6dB to +3dB)

VOLL/VOLR = 00x0F to 0x17 (-3dB to -19dB)

VOLL/VOLR = 00x17 to 0x27 (-19dB to -81dB)

MIN

TYP MAX UNITS

±0.1

dB

0.58 x fS

Hz

60

dB

0.000625

x fS

Hz

90

dB

8.1

8.6

9.2

7.6

8.1

8.6

7.1

7.6

8.1

6.1

6.6

7.2

dB

3.1

3.6

4.3

-5.9

-5.4

-4.9

-60

-55.1

-52

-94

-84

-81

0.5

1

dB

2

4

Output Volume Control

Mute Attenuation

f = 1kHz

100

dB

HEADPHONE AMPLIFIER (Note 9)

Output Power

(Differential Mode)

POUT

f = 1kHz, 0dBFS input,

THD < 1%, TA = +25°C

Output Power

(Capacitorless Mode)

Total Harmonic

Distortion + Noise

(Differential Mode)

Total Harmonic

Distortion + Noise

(Capacitorless Mode)

Total Harmonic

Distortion + Noise

(Single-Ended Mode)

POUT

f = 1kHz, 0dBFS input,

THD < 1%, TA = +25°C

THD+N f = 1kHz, -3dBFS input

THD+N f = 1kHz, -3dBFS input

THD+N f = 1kHz, -3dBFS input

RL = 16

RL = 32

RL = 16

RL = 32

RL = 16

RL = 32

RL = 16

RL = 32

RL = 16

RL = 32

25

48

mW

30

17

mW

10

-78

-67

dB

-79

-73

-60

dB

-75

-70

-60

dB

-70

Dynamic Range

(Notes 5, 7)

DR AVVOL = +6dB

77

90

dB

6 _______________________________________________________________________________________

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