DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 23

• 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): -

Signal Name:
Signal Description:
Signal Type:
Updated on the rising edge of RCLKO with bipolar data out of the line interface. This pin is normally connected to
RPOSI.
Signal Name:
Signal Description:
Signal Type:
Updated on the rising edge of RCLKO with the bipolar data out of the line interface. This pin is normally
connected to RPOSI.
Signal Name:
Signal Description:
Signal Type:
Buffered recovered clock from the network. This pin is normally connected to RCLKI.
Signal Name:
Signal Description:
Signal Type:
Sampled on the falling edge of RCLKI for data to be clocked through the receive-side framer. RPOSI and RNEGI
can be connected together for an NRZ interface. Can be internally connected to RPOSO by connecting the LIUC
pin high.
Signal Name:
Signal Description:
Signal Type:
Sampled on the falling edge of RCLKI for data to be clocked through the receive-side framer. RPOSI and RNEGI
can be connected together for an NRZ interface. Can be internally connected to RNEGO by connecting the LIUC
pin high.
Signal Name:
Signal Description:
Signal Type:
Clock used to clock data through the receive-side framer. This pin is normally connected to RCLKO. Can be
internally connected to RCLKO by connecting the LIUC pin high.
RPOSOx
Receive Positive-Data Output
Output
RNEGOx
Receive Negative-Data Output
Output
RCLKOx
Receive Clock Output
Output
RPOSIx
Receive Positive-Data Input
Input
RNEGIx
Receive Negative-Data Input
Input
RCLKIx
Receive Clock Input
Input
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