MT90812AL データシートの表示（PDF） - Mitel Networks
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MT90812AL Datasheet PDF : 105 Pages
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MT90812
Advance Information
STi0
STi1
EST1
Serial
to
Parallel
M
Converter
U
X
Conference
CPU
FSK and Tone
Generation
D-channel
TX/RX
Microprocessor
Interface
Data
Memory
Gain
Control
Output
Mux
Parallel
to
Serial
Converter
Connect Memory
Energy Detect
Timing
&
PLL
Control
Ring
Frequency
HDLC
Resource
Allocator
Frame Pulses and Clocks
Figure 1 - Functional Block Diagram
STo0
STo1
EST0
R+
R-
HDLC
Controller
C.O.
Trunks
22B2B+B+D+CDDODEC
MPU Interface
- D-channel
- Chip control
22B2B+B+D+DD2B+D
Local
TDM Bus
22B2B+B+D+DD2B+D
...
Integrated
Digital Switch
- digital switch
- conferencing
- tone generation
- energy detection
CODEC
System Expansion bus (TDM)
2B+D
Ports
2B+D
Ports
Analog
Ports
Figure 2 - System Blocks - Typical Configuration
2
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