DS26334GA3+ Maxim Integrated Products, DS26334GA3+ Datasheet - Page 74

• Manufacturer Part Number: DS26334GA3+
• Description: IC LIU E1/T1/J1 3.3V 256-CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26334GA3+

• Number Of Drivers/receivers: 16/16
• Protocol: IEEE 1149.1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 256-CSBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Register Name:
Register Description:
Register Address (LIUs 1–8):
Bit #
Name
Default
Bit 7: Receiver Transformer Turns Ratio Channel 8 (RTR8). If this bit is set the turns ratio is 1:1 on the receiver
side. This bit should be set when a 1:1 receiver transformer is used and is recommended when using long-haul
mode (SHLHS8). Note that in order to use fully internal receive impedance termination, a 1:1 transformer must be
used and this bit must be set to 1.
Bits 6 to 4: Channel 8 Receive Sensitivity/Monitor Select [2:0] (C8RSM[2:0]). Bits C8RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
Bit 3: Receiver Transformer Turns Ratio Channel 7 (RTR7). If this bit is set the turns ratio is 1:1 on the receiver
side. This bit should be set when a 1:1 receiver transformer is used and is recommended when using long-haul
mode (SHLHS7). Note that in order to use the fully internal receive impedance termination, a 1:1 transformer must
be used and this bit must be set to 1.
Bits 2 to 0: Channel 7 Receive Sensitivity/Monitor Select [2:0] (C7RSM[2:0]). Bits C7RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
Register Address (LIUs 9–16):
Bit #
Name
Default
Bit 7: Receiver Transformer Turns Ratio Channel 16 (RTR16). If this bit is set the turns ratio is 1:1 on the
receiver side. This bit should be set when a 1:1 receiver transformer is used and is recommended when using long-
haul mode (SHLHS16). Note that in order to use fully internal receive impedance termination, a 1:1 transformer
must be used and this bit must be set to 1.
Bit 6 to 4: Channel 16 Receive Sensitivity/Monitor Select [2:0] (C16RSM[2:0]). Bits C16RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
Bit 3: Receiver Transformer Turns Ratio Channel 15 (RTR15). If this bit is set the turns ratio is 1:1 on the
receiver side. This bit should be set when a 1:1 receiver transformer is used and is recommended when using long-
haul mode (SHLHS15). Note that in order to use the fully internal receive impedance termination, a 1:1 transformer
must be used and this bit must be set to 1.
Bits 2 to 0: Channel 15 Receive Sensitivity/Monitor Select [2:0] (C15RSM[2:0]). Bits C15RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
RTR16
RTR8
7
0
7
0
C16RSM2
C8RSM2
6
0
6
0
RSMM4
Receive Sensitivity Monitor Mode 4 Register
0Bh
2Bh
C16RSM1
C8RSM1
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
5
0
5
0
C16RSM0
C8RSM0
74 of 121
4
0
4
0
RTR15
RTR7
3
0
3
0
Table
Table
Table
Table
C15RSM2
C7RSM2
2
0
2
0
6-16.
6-16.
6-16.
6-16.
C15RSM1
C7RSM1
1
0
1
0
C15RSM0
C7RSM0
0
0
0
0