TXC-03401BITQ Transwitch Corporation, TXC-03401BITQ Datasheet - Page 12

• Manufacturer Part Number: TXC-03401BITQ
• Manufacturer: Transwitch Corporation

Specifications of TXC-03401BITQ

• Number Of Transceivers: 1
• Operating Supply Voltage (typ): 5V
• Screening Level: Industrial
• Mounting: Surface Mount
• Package Type: TQFP
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Not Compliant

RECEIVE C-BIT INTERFACE
Symbol
Symbol
CRDCC
TCOUT
CRCK
TCIN
CRD
CRF
Pin No.
Pin No.
68-Pin
68-Pin
PLCC
PLCC
Proprietary TranSwitch Corporation Information for use Solely by its Customers
48
52
30
35
36
37
Pin No.
80-Pin
Pin No.
TQFP
80-Pin
TQFP
11
12
13
5
26
31
I/O/P
I/O/P
O
O
O
O
O
I
Type
4mA
4mA
4mA
4mA
TTL
TTL
TTL
TTL
CMOS
- 12 of 54 -
Type
4mA
TTL
DATA SHEET
C-Bit Receive Data Link Clock: A gapped clock
provided for clocking the three data link bits
(C13, C14, and C15) into external circuitry from the
serial data (CRD). The rising edge of CRDCC indi-
cates when valid data is available. In Extended
mode, control bits are available to convert the three
cycles into a single envelope pulse and/or to invert
the signal’s polarity (see Figure 11).
C-Bit Receive Framing Pulse: Provides a time
base reference for clocking in the C-bits in a DS3
frame.
C-Bit Receive Clock: A gapped clock which clocks
C-bit data out of the DS3F. The falling edge of
CRCK indicates when valid data is available.
C-Bit Receive Data: Serial interface for receiving
the following C-bits in the C-bit parity mode: C2,
C3, C4, C5, C6, C13, C14, C15, C16, C17, C18,
C19, C20, and C21. Availability of data is indicated
by the clock signals CRDCC and CRCK, described
above.
Transmit Reference Generator Clock Out:
Clock signal that is derived from the transmit ref-
erence generator clock input (TCIN). Provides a
time base for multiplexing an external payload into
the serial signal TDOUT provided by the refer-
ence generator. May be used as the transmit
input clock (XCK) in the serial mode. Transmit ref-
erence generator signals are clocked out on rising
edges of this clock.
Transmit Reference Generator Clock In: Pro-
vides a time base for generating the various sig-
nals in the DS3F transmit reference generator. In
order to meet DS3 cross-connect objectives, this
clock must operate at 44.736 Mbit/s with a stabil-
ity of 20 ppm and a duty cycle of (50 10)%.
Name/Function
Name/Function
TXC-03401B
TXC-03401B-MB
Ed. 6, June 2001
DS3F