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Typical operating characteristics (continued) – Rainbow Electronics MAX98088 User Manual

Page 30

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Stereo Audio Codec

with FLEXSOUND Technology

MAX98088

30

Typical Operating Characteristics (continued)

(V

AVDD

= V

PVDD

= V

DVDD

= V

DVDDS1

= V

DVDDS2

= +1.8V, V

SPKLVDD

= V

SPKRVDD

= 3.7V. Speaker loads (Z

SPK

) connected

between SPK_P and SPK_N. Receiver load (R

REC

) connected between RECP and RECN. Headphone loads (R

HP

) connected

from HPL or HPR to HPGND. R

HP

= J, R

REC

= J, Z

SPK

= J, C

REF

= 2.2FF, C

MICBIAS

= C

REG

= 1FF, C

C1N-C1P

= 1FF, C

HPVDD

=

C

HPVSS

= 1FF. AV

MICPRE_

= +20dB, AV

MICPGA_

= 0dB, AV

DACATTN

= 0dB, AV

DACGAIN

= 0dB, AV

ADCLVL

= 0dB, AV

ADCGAIN

=

0dB, AV

PGAIN_

= 0dB, AV

HP_

= 0dB, AV

REC

= 0dB, AV

SPK_

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1. T

A

= +25NC,

unless otherwise noted.)

FFT, -60dBFS (MIC TO ADC)

MAX98088 toc13

AMPLITUDE (dBFS)

-120

-100

-80

-60

-40

-20

0

-140

MCLK = 13MHz

LRCLK = 44.1kHz

PLL MODE

AV

MICPRE_

= 0dB

FREQUENCY (Hz)

15,000

10,000

5000

0

20,000

FFT, 0dBFS (MIC TO ADC)

MAX98088 toc14

FREQUENCY (Hz)

AMPLITUDE (dBFS)

15,000

10,000

5000

-120

-100

-80

-60

-40

-20

0

20

-140

0

20,000

MCLK = 12.288MHz

LRCLK = 48kHz

NI MODE

AV

MICPRE_

= 0dB

FFT, -60dBFS (MIC TO ADC)

MAX98088 toc15

AMPLITUDE (dBFS)

-120

-100

-80

-60

-40

-20

0

-140

MCLK = 12.288MHz

LRCLK = 48kHz

NI MODE

AV

MICPRE_

= 0dB

FREQUENCY (Hz)

15,000

10,000

5000

0

20,000

FFT, 0dBFS (MIC TO ADC)

MAX98088 toc16

FREQUENCY (Hz)

AMPLITUDE (dBFS)

15,000

10,000

5000

-120

-100

-80

-60

-40

-20

0

20

-140

0

20,000

MCLK = 12.288MHz

LRCLK = 96kHz

NI MODE

AV

MICPRE_

= 0dB