AD8153-EVALZ Analog Devices Inc, AD8153-EVALZ Datasheet - Page 13

• Manufacturer Part Number: AD8153-EVALZ
• Description: BOARD EVALUATION FOR AD8153
• Manufacturer: Analog Devices Inc
• Series: XStream™r

Specifications of AD8153-EVALZ

• Main Purpose: Interface, 2:1 Multiplexer
• Embedded: No
• Utilized Ic / Part: AD8153
• Primary Attributes: Single-Lane 3.2Gbps 2:1 Mux / 1:2 Demux Switch
• Secondary Attributes: 16 ps Deterministic Jitter, 500 fs rms Random Jitter, GUI via USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

THEORY OF OPERATION
The AD8153 consists of a 2:1 multiplexer and a 1:2 demultiplexer.
There are three operating modes: pin mode, serial mode, and
mixed mode. In pin mode, lane switching, equalization, and
pre-emphasis are controlled using external pins. In serial mode,
an I
access to advanced features, such as additional pre-emphasis
settings and output disable. In mixed mode, the user accesses
the advanced features using I
using external pins.
SWITCH CONFIGURATIONS
On the demultiplexer side, the AD8153 relays received data on
Input Port C to Output Port A and/or Output Port B, depending
on the state of the BICAST and SEL bits. On the multiplexer
Table 5. Switch Configurations
LB_A
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
2
C interface is used to control the device and to provide
LB_B
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
PORT C LOOPLOCK
2
C but controls lane switching
LB_C
0
0
0
0
1
1
1
0
0
0
1
1
1
0
0
0
1
OUTPUT C
INPUT C
SEL
0
0
1
1
0
X
1
0
1
1
0
1
X
0
0
1
0
Figure 31. Loopback Configurations
Rev. 0 | Page 13 of 24
BICAST
0
1
0
1
0
1
0
X
0
1
X
0
1
0
1
X
0
1:2 DEMUX
2:1 MUX
side, the device relays received data on either Input Port A or Input
Port B to Output Port C, depending on the state of the SEL bit.
When bicast mode is off, the outputs of either Port A or Port B
are in an idle state. In the idle state, the output tail current is set
to 0, and the P and N sides of the lane are pulled up to the output
termination voltage through the on-chip termination resistors.
The device also supports loopback on all ports, illustrated in
Figure 31. Enabling loopback on any port overrides configurations
set by the BICAST and SEL control bits. Table 5 summarizes the
possible switch configurations.
The AD8153 output disable feature can be used to force an
output into the idle (powered-down) state. This feature is only
accessible through the serial control interface.
Output A
Input C
Input C
Idle
Input C
Input C
Input C
Idle
Input C
Idle
Input C
Input C
Idle
Input C
Input A
Input A
Input A
Input A
OUTPUT A
OUTPUT B
INPUT A
INPUT B
PORT A LOOPBACK
PORT B LOOPBACK
Output B
Idle
Input C
Input C
Input C
Idle
Input C
Input C
Input B
Input B
Input B
Input B
Input B
Input B
Idle
Input C
Input C
Idle
Output C
Input A
Input A
Input B
Input B
Input C
Input C
Input C
Input A
Input B
Input B
Input C
Input C
Input C
Input A
Input A
Input B
Input C
AD8153