MT90710 Просмотр технического описания (PDF) - Mitel Networks
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MT90710 Datasheet PDF : 12 Pages
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MT90710
Preliminary Information
VDD
54
POR
FBDATA7
56
C4b
FBDATA6
58
FBDATA5
DIN8K0
60
FBDATA4
DIN32K
62
VDD
VSS
64
FBDATA3
STi0
66
FBDATA2
DIN8K1
68
FBDATA1
LLED
70
FBDATA0
RESET
72
IC
VDD
74
84 PIN PLCC
32
NC
VSS
30
NC
E20i
28
STi7
STi6B
26
STi6A
STi5
24
STi4
STi3
22
VDD
VSS
20
STi2
STi1
18
C40i
NC
16
NC
NC
14
C4REFo
C4o
12
VSS
Figure 2 - Pin Connections
Pin Description
Pin #
1
2
3
4
5
6
7
8
9
Name
VSS
VDD
STo7
DOUT8K0
DOUT8K1
C20o
NC
FBADDR7
STo6A
Description
Power Supply Ground. Nominally 0 volts.
Positive Power Supply. Nominally 5 volts.
Serial, 32 Channel, 2.048 Mb/s Link 7 (Output Type 3). Only channels 9 - 31 are
available for user data transfer (1.474 Mb/s). Channels 0 - 8 (0.576 Mb/s) are reserved
for access to fiber overhead information. Output is active only when the receiver
detects the synchronization pattern on RxDATA input stream; output is high impedance
during loss of synchronization.
Asynchronous 8 kHz Signal 0 (Output Type 3). Sourced from the far-end DIN8K0
input.
Asynchronous 8 kHz Signal 1 (Output Type 3). Sourced from the far-end DIN8K1
input.
20.48 MHz Clock (Output Type 3). Derived from transmit PLL 40.96 MHz clock divided
by 2 (see pin 18). Made available for system use.
No Internal Connection.
Frame Buffer RAM Address Bit 7 (Output Type 2).
Serial, 32 Channel, 2.048 Mb/s Link 6A (Output Type 3). Output is active only when
the receiver detects the synchronization pattern on RxDATA input stream; output is high
impedance during loss of synchronization.
5-4
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