MT9122AP 데이터 시트보기 (PDF) - Mitel Networks
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MT9122AP Datasheet PDF : 32 Pages
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MT9122
Preliminary Information
ENA1 1
28
ENB1 2
27
ENA2 3
26
ENB2 4
25
Rin 5
24
Sin 6 PDIP 23
VSS 7
22
MCLK 8
21
IC 9
20
NLP 10
19
REV 11
18
LAW 12
17
FORMAT 13
16
PWRDN 14
15
CONFIG2
CONFIG1
BCLK/C4i
F0i
Rout
Sout
VDD
F0od
S1/DATA1
S2/DATA2
S3/CS
S4/SCLK
TD1
TD2
Rin 5
Sin 6
VSS 7
MCLK 8
IC 9
NLP 10
REV 11
•
PLCC
25 F0i
24 Rout
23 Sout
22 VDD
21 F0od
20 S1/DATA1
19 S2/DATA2
Figure 2 - Pin Connections
Pin Description
Pin #
1
2
3
4
Name
ENA1
Description
SSI Enable Strobe / ST-BUS Mode for Rin/Sout (Input). This pin has dual functions
depending on whether SSI or ST-BUS is selected.
For SSI, this strobe must be present for frame synchronization. This is an active high channel
enable strobe, 8 or 16 data bits wide, enabling serial PCM data transfer for Echo Canceller A
on Rin/Sout pins. Strobe period is 125 microseconds.
ENB1
For ST-BUS, this pin, in conjunction with the ENB1 pin, will select the proper ST-BUS mode for
Rin/Sout pins (see ST-BUS Operation description). The selected mode applies to both Echo
Canceller A and B.
SSI Enable Strobe / ST-BUS Mode for Rin/Sout (Input).This pin has dual functions
depending on whether SSI or ST-BUS is selected.
For SSI, this is an active high channel enable strobe, 8 or 16 data bits wide, enabling serial
PCM data transfer for Echo Canceller B on Rin/Sout pins. Strobe period is 125 microseconds.
ENA2
For ST-BUS, this pin, in conjunction with the ENA1 pin, will select the proper ST-BUS mode for
Rin/Sout pins (see ST-BUS Operation description). The selected mode applies to both Echo
Canceller A and B.
SSI Enable Strobe / ST-BUS Mode for Sin/Rout (Input).This pin has dual functions
depending on whether SSI or ST-BUS is selected.
For SSI, this is an active high channel enable strobe, 8 or 16 data bits wide, enabling serial
PCM data transfer for Echo Canceller A on Sin/Rout pins. Strobe period is 125 microseconds.
ENB2
For ST-BUS, this pin, in conjunction with the ENB2 pin, will select the proper ST-BUS mode for
Sin/Rout pins (see ST-BUS Operation description). The selected mode applies to both Echo
Canceller A and B.
SSI Enable Strobe / ST-BUS Mode for Sin/Rout (Input).This pin has dual functions
depending on whether SSI or ST-BUS is selected.
For SSI, this is an active high channel enable strobe, 8 or 16 data bits wide, enabling serial
PCM data transfer for Echo Canceller B on Sin/Rout pins. Strobe period is 125 microseconds.
For ST-BUS, this pin, in conjunction with the ENA2 pin, will select the proper ST-BUS mode for
Sin/Rout pins (see ST-BUS Operation description). The selected mode applies to both Echo
Canceller A and B.
8-18
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