DS26324GN+T&R Maxim Integrated Products, DS26324GN+T&R Datasheet - Page 60
DS26324GN+T&R
Manufacturer Part Number
DS26324GN+T&R
Description
IC LIU E1/T1/J1 3.3V 256-CSBGA
Manufacturer
Maxim Integrated Products
Type
Line Interface Units (LIUs)r
Datasheet
1.DS26324GNTR.pdf
(120 pages)
Specifications of DS26324GN+T&R
Number Of Drivers/receivers
16/16
Protocol
LIN
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
- Current page: 60 of 120
- Download datasheet (2Mb)
Register Name:
Register Description:
Register Address (LIUs 1–8):
Register Address (LIUs 9–16):
Bit #
Name
Default
Note: This register configures each LIU individually. This register configures the LIU selected by TST.TST[2:0].
Bit 7: Receive Impedance Match On (RIMPON). If this bit is set, internal receive impedance matching is turned
on. Otherwise, the receiver is in high impedance. Note that the OE pin can have control instead of this bit when the
TST.RHPMC bit is set.
Bit 6: Transmit Impedance Termination Off (TIMPOFF). If this bit is set all the internal transmit terminating
impedance is turned off.
Bit 3: Transmit Impedance Receive Match (TIMPRM). This bit selects the internal transmit termination
impedance and receive impedance match for E1 mode and T1/J1 mode.
Bits 2 to 0: Template Selection [2:0] (TS[2:0]). Bits TS[2:0] are used to select E1 or T1/J1 mode, the template,
and the settings for various cable lengths. The impedance termination for the transmitter and impedance match for
the receiver are specified by bit TIMPRM. See
Table 6-13. Template Selection
001 and 010
TS[2:0]
011
100
101
110
111
000
RIMPON
7
0
0 = 75Ω for E1 mode or 100Ω for T1 mode.
1 = 120Ω for E1 mode or 110Ω for J1 mode.
LINE LENGTH (ft)
133–266 ABAM
266–399 ABAM
399–533 ABAM
533–655 ABAM
G.703 coaxial and twisted pair cable
0–133 ABAM
TIMPOFF
Reserved
6
0
TEMPLATE SELECTION
TS
Template Select
11h
31h
—
5
0
Table 6-13
DS26324 3.3V, 16-Channel, E1/T1/J1 Short-Haul Line Interface Unit
CABLE LOSS
60 of 120
(dB)
0.6
1.2
1.8
2.4
3.0
—
—
4
0
for bit selection of TS[2:0].
TIMPRM
IMPEDANCE (Ω)
100/110
100/110
100/110
100/110
100/110
75/120
—
3
0
TS2
2
0
TS1
1
0
TS0
0
0
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