Functional diagram/typical operating circuit – Rainbow Electronics MAX9860 User Manual
Page 37
MAX9860
16-Bit Mono Audio Voice Codec
______________________________________________________________________________________
37
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
0 TO +20dB
(1dB STEPS)
DAC
DVDDIO
IRQ
14
MCLK
10
SCL
9
SDA
AGND
5
I
2
C SERIAL
PORT
23
22
0,
20dB,
30dB
21
20
0,
20dB,
30dB
LEFT
ADC
RIGHT
ADC
INTERPOLATION
FILTER
DECIMATION
FILTER
INTERNAL REGULATORS
REG
2
PREG
3
REF
4
DIGITAL AUDIO
INTERFACE
17
LRCLK
18
BCLK
16
SDIN
15
SDOUT
MONO
LOW-LEVEL
AUDIO
QUIETING
CONTROL
AUTOMATIC
GAIN
CONTROL
TIMING AND
CONTROL LOGIC
6
AVDD
1.7V TO 1.9V
1.7V TO 1.9V
STATUS
USER-
PROGRAMMABLE
MODE CONTROL
DGND
12
DIGITAL ANALOG
MICLP
MICLN
MICRP
MICRN
0 TO +20dB
(1dB STEPS)
MICBIAS
MICBIAS
1
24
MICGND
7
8
OUTP
OUTN
INDICATES USER PROGRAMMABLE I
2
C CONTROL BITS.
0, +6dB,
+12dB, +24dB
-90dB TO 0
-60dB TO 0dB
(2dB STEPS)
-12dB TO +3dB
11
DVDDIO
DVDD
13
1.7V TO 3.6V
DVDDIO
19
DVG
DVA
DVST
PAM
PGAM
PAM
PGAM
ADCLL/
ADCRL
10k
Ω
1.5k
Ω
1.5k
Ω
10
μF
0.1
μF
1
μF
1
μF
1
μF
1
μF
1
μF
2.2
μF
1
μF
1
μF
2.2
μF
1
μF
P
MAX9860
Σ
Functional Diagram/Typical Operating Circuit