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