DS3141N Maxim Integrated Products, DS3141N Datasheet - Page 21

• Manufacturer Part Number: DS3141N
• Description: Network Controller & Processor ICs Single/Dual/Triple/Q /Quad DS3/E3 Framers
• Manufacturer: Maxim Integrated Products

Specifications of DS3141N

• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 2.048 Mbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 90 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: CSBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 7-B. BERT/Loopback Interaction—Overhead Bits
Note 1: In M23 mode or E3 mode, the transmit formatter sources the C bits from the appropriate bit positions of the TDAT data stream.
Note 2: When BM[1:0] = 11, the BERT expects a full-bandwidth (payload plus overhead) pattern to come in on the TDAT pin. In M23 mode or
DLB
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
CONFIGURATION BITS
E3 mode with BM[1:0] = 11, the transmit formatter sources the C bits from the appropriate bit positions of the TDAT data stream, even
though those bit positions are actually part of the full-bandwidth BERT pattern.
LLB
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
PLB
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
BM [1:0]
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
Framer and RDAT
Framer and RDAT
Framer
Not used
Not used
Not used
Not used
Framer and RDAT
Framer and RDAT
Framer
Framer, RDAT and
BERT
TPOS/TNEG, Framer,
and RDAT
TPOS/TNEG, Framer,
RDAT, and BERT
TPOS/TNEG, Framer,
and RDAT
TPOS/TNEG and
Framer
Framer, RDAT, and
BERT
From RPOS/RNEG To:
21 of 88
BITS AT OVERHEAD BIT POSITIONS
Not used (Note 1)
Not used
Not used (Note 1)
BERT (Note 2)
Not used (Note 1)
Not used
Not used (Note 1)
BERT (Note 2)
Not used
Not used
Not used
BERT (Note 2)
Not used (Note 1)
Not used
Not used (Note 1)
BERT (Note 2)
From TDAT To:
TPOS/TNEG
Not used
TPOS/TNEG
TPOS/TNEG
TPOS/TNEG,
Framer, and RDAT
Not used
TPOS/TNEG,
Framer, and RDAT
TPOS/TNEG and
Framer
Not used
Not used
Not used
TPOS/TNEG
Not used
TPOS/TNEG
TPOS/TNEG
Not used
From Formatter To:
Not generated
TPOS, TNEG
Not generated
RDAT
Not generated
TPOS/TNEG,
Framer, BERT,
and RDAT
Not generated
RDAT
Not generated
Not used
Not generated
RDAT
Not generated
TPOS/TNEG
Not generated
RDAT
From BERT To: