DS26334G+ Maxim Integrated Products, DS26334G+ Datasheet - Page 72
DS26334G+
Manufacturer Part Number
DS26334G+
Description
IC INTERFACE LINE 16CH 256-CSBGA
Manufacturer
Maxim Integrated Products
Type
Line Interface Units (LIUs)r
Datasheet
1.DS26334G.pdf
(121 pages)
Specifications of DS26334G+
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
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Register Name:
Register Description:
Register Address (LIUs 1–8):
Bit #
Name
Default
Bit 7: Receiver Transformer Turns Ratio Channel 4 (RTR4). 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 (SHLHS4). 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 4 Receive Sensitivity/Monitor Select [2:0] (C4RSM[2:0]). Bits C4RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
Bit 3: Receiver Transformer Turns Ratio Channel 3 (RTR3). 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 (SHLHS3). 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.
Bit 2 to 0: Channel 3 Receive Sensitivity/Monitor Select [2:0] (C3RSM[2:0]). Bits C3RSM[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 12 (RTR12). 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 (SHLHS12). 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 12 Receive Sensitivity/Monitor Select [2:0] (C12RSM[2:0]). Bits C12RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
Bit 3: Receiver Transformer Turns Ratio Channel 11 (RTR11). If this bit is set the rurns 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 (SHLHS11). 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 11 Receive Sensitivity/Monitor Select [2:0] (C11RSM[2:0]). Bits C11RSM[2:0] are used to
select the receiver sensitivity level and the monitor mode resistive gain. See
RTR12
RTR4
7
0
7
0
C12RSM2
C4RSM2
6
0
6
0
RSMM2
Receive Sensitivity Monitor Mode 2 Register
09h
29h
C12RSM1
C4RSM1
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
5
0
5
0
C12RSM0
C4RSM0
72 of 121
4
0
4
0
RTR11
RTR3
3
0
3
0
Table
Table
Table
Table
C11RSM2
C3RSM2
2
0
2
0
6-16.
6-16.
6-16.
6-16.
C11RSM1
C3RSM1
1
0
1
0
C11RSM0
C3RSM0
0
0
0
0
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