MT9075A Mitel Networks Corporation, MT9075A Datasheet - Page 6

• Manufacturer Part Number: MT9075A
• Description: E1 Single Chip Transceiver
• Manufacturer: Mitel Networks Corporation

MT9075A
Pin Description (continued)
4-134
PLCC MQFP
64
65
66
67
68
Pin #
25-31,
49-56,
75-82,
1-7,
100
61
62
63
64
65
TxDLCLK Transmit Data Link Clock (Output). A gapped clock signal derived from a gated 2.048
BL/FR
Name
TxDL
VDD
VSS
NC
Mbit/s clock for transmit data link at 4, 8, 12, 16 or 20 kHz. The transmit data link data
(TxDL) is clocked in on the rising edge of TxDLCLK. TxDLCLK can also be used to clock
DL data out of an external serial controller.
Transmit Data Link (Input). An input serial stream of transmit data link data at 4, 8, 12,
16 or 20 kbit/s composed of 488ns-wide bit cells which are multiplexed into selected
national bits of the PCM 30 transmit signal.
BusorLine/Freerun (Input). If this pin is set to high, the MT9075A is in the System Bus
or Line Synchronous mode depending on the BS/LS pin. If low, the MT9075A is in the
free run mode.
Positive Power Supply (Input). Digital supply (+5V
Negative Power Supply (Input). Digital ground.
No Connection. Leave open for normal operation.
Description
5%).
Preliminary Information