ds26519 Maxim Integrated Products, Inc., ds26519 Datasheet - Page 20
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ds26519
Manufacturer Part Number
ds26519
Description
Ds26519 16-port T1/e1/j1 Transceiver
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS26519.pdf
(310 pages)
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8.
8.1
Table 8-1. Detailed Pin Descriptions
TXENABLE
TRING10
TRING11
TRING12
TRING13
TRING14
TRING15
TRING16
TRING1
TRING2
TRING3
TRING4
TRING5
TRING6
TRING7
TRING8
TRING9
TTIP10
TTIP11
TTIP12
TTIP13
TTIP14
TTIP15
TTIP16
NAME
TTIP1
TTIP2
TTIP3
TTIP4
TTIP5
TTIP6
TTIP7
TTIP8
TTIP9
PIN DESCRIPTIONS
Pin Functional Description
W18, Y18
V12, W12
V13, W13
V16, W16
V17, W17
V14, W14
V15, W15
G18, G19
H18, H19
C11, C12
K18, K19
D11, E11
D10, E10
E19, E20
Y11, Y12
L20, M20
F18, F19
L18, L19
J18, J19
M4, M5
C5, D5
N4, N5
D7, E7
R4, R5
U4, U5
D9, E9
D8, E8
L3, M3
V3, V4
D6, E6
P4, P5
T4, T5
U16
PIN
Impedance
Impedance
Output,
Output,
Analog
Analog
TYPE
Input
High
High
Transmit Bipolar Tip for Transceiver 1 to 16. These pins are differential line
driver tip outputs. These pins can be high impedance if:
If TXENABLE is low, TTIPn/TRINGn will be high impedance. Note that if
TXENABLE is low, the register settings for control of TTIPn/TRINGn are ignored
and output is high impedance.
The differential outputs of TTIPn and TRINGn can provide internal matched
impedance for E1 75 Ω , E1 120 Ω , T1 100 Ω , or J1 110 Ω . The user can turn off
internal termination.
Note: The two pins shown for each transmit bipolar tip (e.g., pins C5 and D5 for
TTIP1) should be tied together.
Transmit Bipolar Ring for Transceiver 1 to 16. These pins are differential line
driver ring outputs. These pins can be high impedance if:
If TXENABLE is low, TTIPn/TRINGn will be high impedance. Note that if
TXENABLE is low, the register settings for control of TTIPn/TRINGn are ignored
and output is high impedance.
The differential outputs of TTIPn and TRINGn can provide internal matched
impedance for E1 75 Ω , E1 120 Ω , T1 100 Ω , or J1 110 Ω . The user can turn off
internal termination.
Note: The two pins shown for each transmit bipolar ring (e.g., pins D6 and E6
for TRING1) should be tied together.
Transmit Enable. If this pin is pulled low, all transmitter outputs (TTIPn and
TRINGn) are high impedance. The register settings for tri-state control of
TTIPn/TRINGn are ignored if TXENABLE is low. If TXENABLE is high, the
particular driver can be tri-stated by the register settings.
ANALOG TRANSMIT
20 of 310
FUNCTION
DS26519 16-Port T1/E1/J1 Transceiver
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