MT9173AE Mitel Networks Corporation, MT9173AE Datasheet - Page 2

• Manufacturer Part Number: MT9173AE
• Description: Digital Subscriber Interface Circuit with RxSB
• Manufacturer: Mitel Networks Corporation

MT9173/74
Pin Description
9-138
4,5,
24
10
11
12
13
14
1
2
3
6
7
8
9
Pin #
CDSTo/CDo
CDSTi/CDi
5,7,
F0/CLD
28
10
11
12
13
14
15
16
2
3
4
8
9
LOUT
VBias
RxSB
RegC
VRef
MS2
MS1
MS0
VSS
MS2-MS0 Mode Select inputs (Digital). The logic levels present on these pins select the various
DSTo/Do Data ST-BUS Out/Data Out (Digital). A 2.048 Mbit/s serial PCM/data output in DN
F0/CLD
DSTi/Di
CDSTo/
CDSTi/
RegC
RxSB
24 PIN PDIP/ SSOP
Name
L
V
CDo
10
11
12
V
CDi
V
1
2
3
4
5
6
7
8
9
OUT
Bias
Ref
SS
Line Out. Transmit Signal output (Analog). Referenced to V
Internal Bias Voltage output. Connect via 0.33 F decoupling capacitor to V
Internal Reference Voltage output. Connect via 0.33 F decoupling capacitor to V
operating modes for a particular application. See Table 1 for the operating modes.
Regulator Control output (Digital). A 512 kHz clock used for switch mode power
supplies. Unused in MAS/MOD mode and should be left open circuit.
Receive Sync Bit output (Digital). In DN mode, this output is held high until receive
synchronization occurs (i.e., until the sync bit in Status Register =1). Once low,
indicating synchronized transmission, a high going pulse (6.24 s wide pulse @ 160
kb/s and 12.5 s wide @ 80 kb/s) indicates the temporal position of the receive
"SYNC" bit in the biphase line transmission. Inactive and low in MOD mode.
Frame Pulse/C-Channel Load (Digital). In DN mode a 244 ns wide negative pulse
input for the MASTER indicating the start of the active channel times of the device.
Output for the SLAVE indicating the start of the active channel times of the device.
Output in MOD mode providing a pulse indicating the start of the C-channel.
Control/Data ST-BUS In/Control/Data In (Digital). A 2.048 Mbit/s serial control &
signalling input in DN mode. In MOD mode this is a continuous bit stream at the bit
rate selected.
Control/Data ST-BUS Out/Control/Data Out (Digital). A 2.048 Mbit/s serial control &
signalling output in DN mode. In MOD mode this is a continuous bit stream at the bit
rate selected.
Negative Power Supply (0V).
mode. In MOD mode this is a continuous bit stream at the bit rate selected.
Data ST-BUS In/Data In (Digital). A 2.048 Mbit/s serial PCM/data input in DN mode.
In MOD mode this is a continuous bit stream at the bit rate selected.
24
23
22
21
20
19
18
17
16
15
14
13
VDD
LIN
TEST
LOUT DIS
Precan
OSC1
NC
OSC2
C4/TCK
F0o/RCK
DSTi/Di
DSTo/Do
Figure 2 - Pin Connections
Description
F0/CLD
RegC
RxSB
MS2
MS1
MS0
NC
5
6
7
8
9
10
11
28 PIN PLCC
Preliminary Information
Bias
.
25
24
23
22
21
20
19
C4/TCK
NC
LOUT DIS
Precan
OSC1
OSC2
NC
DD
.
DD
.