DS21Q50L+ Maxim Integrated Products, DS21Q50L+ Datasheet - Page 31

• Manufacturer Part Number: DS21Q50L+
• Description: IC TXRX E1 QUAD 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q50L+

• Function: Transceiver
• Interface: E1
• Number Of Circuits: 4
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 230mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: *
• Includes: AIS Alarms Detector and Generator, Loopback Functions, PRBS Generator / Detector, Remote Detector and Generator
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -

Register Name:
Register Description:
Register Address:
Bit
Name
LIUODO
RPRBS1
RPRBS0
TPRBS1
TPRBS0
IRTSEL
NAME
LIUSI
CDIG
LIUODO
7
BIT
7
6
5
4
3
2
1
0
CDIG
Line Interface Open-Drain Option. This control bit determines whether the TTIP and
TRING outputs are open drain or not. The line driver outputs can be forced open drain to
allow 6V peak pulses to be generated or to allow the creation of a very low-power
interface.
0 = allow TTIP and TRING to operate normally
1 = force the TTIP and TRING outputs to be open drain
Customer Disconnect Indication Generator. This control bit determines whether the line
interface generates an unframed ...1010... pattern at TTIP and TRING instead of the
normal data pattern.
0 = generate normal data at TTIP and TRING
1 = generate a ...1010... pattern at TTIP and TRING
Line Interface G.703 Synchronization Interface Enable. This control bit determines
whether the line receiver should handle a normal E1 signal (Section 6 of G.703) or a
2.048MHz synchronization signal (Section 10 of G.703). This control has no affect on
the line interface transmitter.
0 = line receiver configured to support a normal E1 signal
1 = line receiver configured to support a synchronization signal
Receive Termination Select. This function applies internal parallel resistance to the
normal 120W external termination to create a 75W termination.
0 = normal 120W external termination
1 = internally adjust receive termination to 75W
Transmit PRBS Mode Bit 1
Transmit PRBS Mode Bit 0
Receive PRBS Mode Bit 1
Receive PRBS Mode Bit 0
CCR5
Common Control Register 5
16 Hex
6
LIUSI
5
IRTSEL
4
(Table
(Table
(Table
(Table
31 of 87
TPRBS1
8-2)
8-2)
8-1)
8-1)
3
FUNCTION
TPRBS0
2
RPRBS1
1
RPRBS0
0