DS21455 Maxim Integrated Products, DS21455 Datasheet - Page 165

• Manufacturer Part Number: DS21455
• Description: Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
• Manufacturer: Maxim Integrated Products

Specifications of DS21455

• Product: Framer
• Number Of Transceivers: 4
• Data Rate: 64 Kbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 328 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: BGA

Table 25-2. E1 Mode With Automatic Gain Control Mode Enabled (TLBC.6 = 0)
75Ω Normal
120Ω Normal
75Ω with High Return Loss*
120Ω with High Return Loss*
Table 25-3. E1 Mode With Automatic Gain Control Mode Disabled (TLBC.6 = 1)
75Ω Normal
120Ω Normal
75Ω with High Return Loss*
120Ω with High Return Loss*
Table 25-4. T1 Mode With Automatic Gain Control Mode Enabled (TLBC.6 = 0)
0dB CSU
DSX-1 (0 to 133 feet)/0dB CSU
DSX-1 (133 to 266 feet)
DSX-1 (266 to 399 feet)
DSX-1 (399 to 533 feet)
DSX-1 (533 to 655 feet)
-7.5dB CSU
-15dB CSU
-22.5dB CSU
Table 25-5. T1 Mode With Automatic Gain Control Mode Disabled (TLBC.6 = 1)
0dB CSU
DSX-1 (0 to 133 feet)/0dB CSU
DSX-1 (133 to 266 feet)
DSX-1 (266 to 399 feet)
DSX-1 (399 to 533 feet)
DSX-1 (533 to 655 feet)
-7.5dB CSU
-15dB CSU
-22.5dB CSU
*
**N.M. = not meaningful.
TT0 and TT1 of the LIC4 register must be set to zero in this configuration .
APPLICATION
APPLICATION
APPLICATION
APPLICATION
LIC1.7
LIC1.7
LIC1.7
LIC1.7
(L2)
(L2)
(L2)
(L2)
0
0
1
1
0
0
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
1
1
LIC1.6
LIC1.6
LIC1.6
LIC1.6
(L1)
(L1)
(L1)
(L1)
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
1
1
0
0
0
1
1
0
0
1
1
165 of 270
LIC1.5
LIC1.5
LIC1.5
LIC1.5
(L0)
(L0)
(L0)
(L0)
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
PSA1
(F1h)
PSA1
(F1h)
PSA1
(F1h)
PSA1
(F1h)
20h
20h
00h
20h
0Ah
0Ah
0Ah
20h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
PSA2
(F2h)
PSA2
PSA2
PSA2
(F2h)
(F2h)
(F2h)
08h
00h
00h
00h
08h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
RETURN
RETURN
RETURN
RETURN
LOSS
N.M.**
LOSS
LOSS
LOSS
21dB
21dB
N.M.
N.M.
N.M.
21dB
21dB
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
N.M.
Rt (1)
11.6Ω
Rt (1)
11.6Ω
Rt (1)
Rt (1)
6.2Ω
6.2Ω
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0