MAX98090BEWJ+T Maxim Integrated, MAX98090BEWJ+T Datasheet - Page 100
MAX98090BEWJ+T
Manufacturer Part Number
MAX98090BEWJ+T
Description
Interface - CODECs 5V 130mW Stereo Headphone Amp
Manufacturer
Maxim Integrated
Datasheet
1.MAX98090BETL.pdf
(166 pages)
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MAX98090
Digital Audio Interface (DAI) Configuration
The digital audio interface (DAI) contains two primary sec-
tions (Figure 15). The first is the clock control and configu-
ration section. The device supports both master and slave
mode operation, can accept a master clock of either 256
x f
ured for any digital audio sampling rate (f
96kHz. When the device is configured as the digital audio
master, a variety of operating modes are available. These
include a simple quick configuration mode, exact integer
sampling mode, and a manual clock divider mode. When
Figure 15. Simplified Digital Audio Interface Block Diagram
www.maximintegrated.com
S
or ranging from 10MHz to 60MHz, and can be config-
PCLK
GENERATION
PRESCALED
CLOCK
MCLK
DIGITAL MIC CLOCK
CONFIGURATION
DAI: CLOCK CONTROL
AND CONFIGURATION
PSCLK[1:0]
FREQ[3:0]
CLOCK
FRAME
PLL AND CLOCK GENERATION
LRCLK
S
) from 8kHz to
USE_MI
MI[14:0]
NI[14:0]
MAS
BCI
WCI
TO ADC CLOCK
GENERATION
BSEL[2:0]
CLOCK
BIT
RECORD PATH DSP
BCLK
MAX98090
the device is configured to slave mode, the internal PLL
quickly locks onto the external LRCLK frequency.
The second section is the digital audio data path control
and signal routing. This section supports a variety of ste-
reo data path configurations including serial audio input
and output, audio loop through from the record to play-
back paths, and audio loop back from the serial data input
to the serial data output. The serial data interface also
supports several standard digital audio formats (PCM)
including I
multiplexed (TDM).
L/R AUDIO
OUTPUT
Ultra-Low Power Stereo Audio Codec
OUTPUT SHIFT
DATA OUTPUT
BACK MUX
REGISTER
0
2
ENABLE
LOOP
S, left justified, right justified, and time division
SDOUT
1
DAI: DATA PATH
TO DAC CLOCK
GENERATION
LBEN
SLOTDLY[3:0]
SLOTL/R[1:0]
TDM, FSW
SDOEN
HIZOFF
RJ, DLY
WS[1:0]
DMONO
SDIEN
PLAYBACK PATH DSP
LTEN
1
INPUT MIXER
INPUT SHIFT
DATA INPUT
REGISTER
THROUGH
PLAYBACK
ENABLE
Maxim Integrated │ 100
LOOP
MUX
L/R AUDIO
INPUT
SDIN
0
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