DS21448L+ Maxim Integrated Products, DS21448L+ Datasheet - Page 5

• Manufacturer Part Number: DS21448L+
• Description: IC LIU QUAD E1/T1/J1 128-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS21448L+

• Number Of Drivers/receivers: 4/4
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Product: Framer
• Number Of Transceivers: 4
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 400 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. BLOCK DIAGRAMS
Figure 1-1. Block Diagram
RRING
TRING
TTIP
BIS0
RTIP
CHANNEL 1
CHANNEL 2
2
CHANNEL 3
CHANNEL 4
CONNECTIONS
2
POWER
INTERFACE
SERIAL
MUX (THE SERIAL, PARALLEL, AND HARDWARE INTERFACES
UNFRAMED
INSERTION
ALL-ONES
PARALLEL INTERFACE
SHARE DEVICE PINS)
VCO/PLL
JACLK
5
8
5 of 60
CONTROL AND
ALL BLOCKS)
(ROUTED TO
n
2.048MHz TO
1.544MHz PLL
TYPICAL OF ALL FOUR CHANNELS
CONTROL AND TEST
PORT (ROUTED TO
ALL BLOCKS)
JTAG PORT
See
See
SYNTHESIZER
16.384MHz OR
Figure 1-2
Figure 1-3
8.192MHz OR
4.096MHz OR
MUX
2.048MHz
Semiconductor
DS21448
Dallas
RCL/LOTC
PBEO
HRST
TXDIS/TEST
RCLK
RPOS
RNEG
TPOS
TCLK
TNEG
BPCLK