DS26521LN+ Maxim Integrated Products, DS26521LN+ Datasheet - Page 227

• Manufacturer Part Number: DS26521LN+
• Description: IC TXRX T1/E1/J1 64-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26521LN+

• Number Of Drivers/receivers: 1/1
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 10-12. T1 Transmit-Side 2.048MHz Boundary Timing (Elastic Store Enabled)
TCHBLK
TSYSCLK
TSSYNC
TCHCLK
TSER
TSIG
NOTE 1: TSER DATA IN CHANNELS 1, 5, 9, 13, 17, 21, 25, AND 29 IS IGNORED.
NOTE 2: TCHBLK IS PROGRAMMED TO BLOCK CHANNELS 31 AND 1.
NOTE 3: THE F-BIT POSITION FOR THE T1 FRAME IS SAMPLED AND PASSED THROUGH THE TRANSMIT-SIDE
ELASTIC STORE INTO THE MSB BIT POSITION OF CHANNEL 1. (NORMALLY THE TRANSMIT-SIDE FORMATTER
OVERWRITES THE F-BIT POSITION UNLESS THE FORMATTER IS PROGRAMMED TO PASS THROUGH THE F-BIT
POSITION).
2
1
CHANNEL 31
CHANNEL 31
A
B
C/A D/B
LSB MSB
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CHANNEL 32
CHANNEL 32
A
B
C/A D/B
LSB
DS26521 Single T1/E1/J1 Transceiver
F
3
CHANNEL 1
CHANNEL 1
A