DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 174

• Manufacturer Part Number: DS21Q55
• Description: IC TXRX QUAD T1/E1/J1 SCT 256BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q55

• Function: Transceiver
• Interface: E1, J1, T1
• Number Of Circuits: 4
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Includes: BERT Generator and Detector, Dual HDLC Controllers
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power (watts): -

Figure 24-1. Simplified Diagram of BERT in Network Direction
Figure 24-2. Simplified Diagram of BERT in Backplane Direction
PER-CHANNEL AND
PER-CHANNEL AND
F-BIT (T1 MODE)
FROM RECEIVE
F-BIT (T1 MODE)
TO TRANSMIT
FROM RECEIVE
TO TRANSMIT
MAPPING
FRAMER
FRAMER
MAPPING
FRAMER
FRAMER
1
0
RECEIVER
RECEIVER
BERT
BERT
174 of 237
TRANSMITTER
TRANSMITTER
BERT
BERT
0
1
TO RECEIVE
SYSTEM
BACKPLANE
INTERFACE
TO RECEIVE
SYSTEM
BACKPLANE
INTERFACE
FROM TRANSMIT
SYSTEM
BACKPLANE
INTERFACE
FROM TRANSMIT
SYSTEM
BACKPLANE
INTERFACE