DS21448 Maxim Integrated Products, DS21448 Datasheet - Page 6

• Manufacturer Part Number: DS21448
• Description: IC LIU QUAD E1/T1/J1 144-BGA
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS21448

• Number Of Drivers/receivers: 4/4
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 144-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TO REMOTE
LOOPBACK
Figure 1-2. Receive Logic Detail
FROM
REMOTE
LOOPBACK
Figure 1-3. Transmit Logic Detail
RIR1.7
CCR3.1
4 OR 8 ZERO DETECT
INSERT
ROUTED TO
ALL BLOCKS
16 ZERO DETECT
BPV
ROUTED TO
ALL BLOCKS
CCR1.6
GA TE
RIR1.6
OR
MUX
CCR1.1
MUX
1
0
0
1
CCR2.3
CLOCK
INVERT
CCR2.0
RCLK
CCR6.2/
CCR6.0/
CCR6.1
B8ZS/HDB3
DECODER
CODER
CCR2.2
B8ZS/
HDB3
GA TE
MUX
OR
RIR1.5
CCR1.2
0
1
DETECTOR
SR.4 RIR1.3
ALL-ONES
GATE
AND
6 of 60
INSERT
ERROR
LOGIC
CCR3.0
CCR1.0
BPV/CV/EXZ
NRZ DATA
LOOP CODE
SR.6
DETECTOR
TO LOTC OUTPUT PIN
CCR3.3
SR.7
DS21448 3.3V T1/E1/J1 Quad Line Interface
MUX
DETECTOR
LOSS-OF-TRANSMIT
CCR3.4
CCR1.4
CLOCK DETECT
PRBS
SR.0
JACLK
(FROM MCLK)
SR.5
COUNTER (ECR)
16-BIT ERROR
GENERATOR
LOOP CODE
MUX
GENERATOR
OR
GATE
PRBS
CLOCK
INVERT
CCR2.1
CCR6.0
CCR1.6
MUX
RCLK
RPOS
RNEG
PBEO
TPOS
TNEG
TCLK