ADN4604ASVZ-RL Analog Devices Inc, ADN4604ASVZ-RL Datasheet - Page 23

• Manufacturer Part Number: ADN4604ASVZ-RL
• Description: 4.25Gbps 16x16 Crossbar Switch
• Manufacturer: Analog Devices Inc
• Series: XStream™r

Specifications of ADN4604ASVZ-RL

• Function: Crosspoint Switch
• Circuit: 1 x 16:16
• On-state Resistance: 56 Ohm
• Voltage Supply Source: Single Supply
• Voltage - Supply, Single/dual (±): 2.7 V ~ 3.6 V
• Current - Supply: 95mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TERMINATION
The inputs and outputs include integrated 50 Ω termination
resistors. For applications that require external termination
resistors, the internal resistors can be disabled. For example,
disabling the integrated 50 Ω termination resistors allows
alternative termination values such as 75 Ω as shown in
Figure 45.
Note that the integrated 50 Ω termination resistors are optimal
for high data rate digital signaling. Disabling the terminations
can reduce the overall performance.
Table 16. Termination Control Register
Address
0xF0
Default
0x00
Register Name
Termination control
75Ω
75Ω
75Ω
V
TTIx
75Ω
Figure 45. 75 Ω to 50 Ω Impedance Translator.
50Ω
V
TTIx
Bit
3
2
1
0
50Ω
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V
CML
CC
V
TXS_TERM
RXE_TERM
RXW_TERM
Bit Name
TXN_TERM
EE
50Ω
ADN4604
V
TTOx
The termination control is separated by quadrants (North =
Outputs[15:8], South = Outputs[7:0], East = Inputs[15:8], and
West = Inputs[7:0]).
Table 16 shows the termination control register. A Logic 0
enables the terminations for the respective quadrant. A Logic 1
disables the terminations for the respective quadrant. The
terminations are enabled by default.
50Ω
50Ω
50Ω
Description
Output[15:8] (North) termination control
0: Terminations enabled
1: Terminations disabled
Output[7:0] (South) termination control
0: Terminations enabled
1: Terminations disabled
Input[15:8] (East) termination control
0: Terminations enabled
1: Terminations disabled
Input[7:0] (West) termination control
0: Terminations enabled
1: Terminations disabled
V
TTOx
50Ω
Rx
ADN4604