DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 218

• 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 31-21. Transmit-Side Boundary Timing, TSYSCLK = 2.048MHz (Elastic
Store Enabled)
Note 1: TCHBLK is programmed to block channel 31.
TCHBLK
TSYSCLK
TSSYNC
TCHCLK
TSER
TSIG
2,3
1
CHANNEL 31
CHANNEL 31
A
B
C
LSB MSB
D
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CHANNEL 32
CHANNEL 32
A
B
C
LSB
D
F
4
CHANNEL 1
CHANNEL 1
A