參數(shù)資料
型號: MT92303
廠商: Mitel Networks Corporation
元件分類: Codec
英文描述: 3.3V Quad Interface, Dual Codec(3.3V 四接口雙編解碼器(提供音頻到PCM的接口))
中文描述: 3.3四種接口,雙編解碼器(3.3四接口雙編解碼器(提供音頻到的PCM的接口))
文件頁數(shù): 32/34頁
文件大?。?/td> 166K
代理商: MT92303
MT92303
Preliminary Information
32
Figure 23 - Application Diagram
MT92101/2
Notes:
All VDD pins (x5) should be star-routed to the positive supply.
All GND pins (x5) and the SUB pin should be star-routed to ground.
The diagram shows a dynamic microphone connected to MIC0P/N and an electret microphone to MIC2P/N.
Audio Interfaces #1 and #3 are shown as unused.
Unused inputs must not be left floating - they should be connected to ground (e.g. MICDETECT, AUXTONE,
MIC, DATA2).
Unused outputs should be left open-circuit.
Decoupling capacitors should be as close to the pins as possible.
Decoupling for the Loud Speaker and Earpiece supplies may need to be increased.
Pins 4 and 5 are connected together in this example. In this configuration, the MT92303 uses an internal PLL to
multiply the PCM serial clock (4.096MHz) up to 20.48MHz (used internally).
100n
100n
100n
100n
100n
1
2
3
4
5
6
7
8
9
10
11
1
1
1
1
1
1
1
1
2
2
2
33
32
31
30
29
28
27
26
25
24
23
3
4
4
4
4
4
3
3
3
3
3
V
S
S
G
V
E
E
G
E
E
V
EAR1P
EAR1N
GNDP1
AUXTONE
VDDA
GNDA
SUB
MIC1P
MIC1N
VREF
MIC0N
R
M
M
M
M
M
M
M
M
M
M
DSTo/Dout/STD
DSTi/Din/SRD
F0i/FSC/SC2
C4i/DCL/SCK
SYSCLK
VDDD
GNDD
DATA2
DATA1
SCLK
CS
TFS
SCLK
DT
DR
SERDATA
SERCLK
SERSEL[X]
MT92303
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