DS26528GNA4 Maxim Integrated, DS26528GNA4 Datasheet - Page 19

• Manufacturer Part Number: DS26528GNA4
• Description: Network Controller & Processor ICs
• Manufacturer: Maxim Integrated

Specifications of DS26528GNA4

• Part # Aliases: 90-26528-NA4

7.
7.1
Table 7-1. Detailed Pin Descriptions
TXENABLE
RRING1
RRING2
RRING3
RRING4
RRING5
RRING6
RRING7
RRING8
TRING1
TRING2
TRING3
TRING4
TRING5
TRING6
TRING7
TRING8
NAME
RTIP1
RTIP2
RTIP3
RTIP4
RTIP5
RTIP6
RTIP7
RTIP8
TTIP1
TTIP2
TTIP3
TTIP4
TTIP5
TTIP6
TTIP7
TTIP8
Pin Functional Description
PIN DESCRIPTIONS
H15, H16
G14, H14
A15, A16
A14, B14
T15, T16
J14, K14
R14,T14
J15, J16
G3, H3
H1, H2
A1, A2
T1, T2
A3, B3
R3, T3
J3, K3
J1 J2
P16
F16
C16
P15
C15
PIN
L13
L16
L15
F15
C1
P1
C2
P2
F1
L1
F2
L2
Impedance
Impedance
Output,
Output,
Analog
Analog
Analog
Analog
TYPE
Input
Input
High
High
I
Transmit Bipolar Tip for Transceiver 1 to 8. These pins are differential line
driver tip outputs. These pins can be high impedance if:
If TXENABLE is low, the TTIP/TRING will be high impedance. Note that if
TXENABLE is low, the register settings for control of the TTIP/TRING are ignored
and output is high impedance.
The differential outputs of TTIPn and TRINGn can provide internal matched
impedance for E1 75Ω, E1 120Ω, T1 100Ω, or J1 110Ω. The user has the option of
turning off internal termination.
Note: The two pins shown for each transmit bipolar tip (e.g., pins A1 and A2 for
TTIP1) should be tied together.
Transmit Bipolar Ring for Transceiver 1 to 8. These pins are differential line
driver ring outputs. These pins can be high impedance if:
If TXENABLE is low, the TTIP/TRING will be high impedance. Note that if
TXENABLE is low, the register settings for control of the TTIP/TRING are ignored
and output is high impedance.
The differential outputs of TTIPn and TRINGn can provide internal matched
impedance for E1 75Ω, E1 120Ω, T1 100Ω, or J1 110Ω. The user has the option of
turning off internal termination.
Note: The two pins shown for each transmit bipolar ring (e.g., pins A3 and B3 for
TRING1) should be tied together.
Transmit Enable. If this pin is pulled low, all transmitter outputs (TTIP and TRING)
are high impedance. The register settings for tri-state control of TTIP/TRING are
ignored if TXENABLE is low. If TXENABLE is high, the particular driver can be tri-
stated by the register settings.
Receive Bipolar Tip for Transceiver 1 to 8. The differential inputs of RTIPn and
RRINGn can provide internal matched impedance for E1 75Ω, E1 120Ω, T1 100Ω,
or J1 110Ω. The user has the option of turning off internal termination via the LIU
Receive Impedance and Sensitivity Monitor register (LRISMR).
Receive Bipolar Ring for Transceiver 1 to 8. The differential inputs of RTIPn and
RRINGn can provide internal matched impedance for E1 75Ω, E1 120Ω, T1 100Ω,
or J1 110Ω. The user has the option of turning off internal termination via the LIU
Receive Impedance and Sensitivity Monitor register (LRISMR).
ANALOG TRANSMIT
ANALOG RECEIVE
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FUNCTION
DS26528 Octal T1/E1/J1 Transceiver