DS25MB100EVK National Semiconductor, DS25MB100EVK Datasheet - Page 3

• Manufacturer Part Number: DS25MB100EVK
• Description: KIT EVAL FOR DS25MB100
• Manufacturer: National Semiconductor

Specifications of DS25MB100EVK

• Main Purpose: Interface, 2:1 Multiplexer
• Utilized Ic / Part: DS25MB100
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

Connection Diagram
Figure 1. Typical connection for evaluation of the DS25MB100
Power
VCC
GND
EQ controls
EQL
EQS
De-emphasis controls
DEL_0
DEL_1
DES_0
DES_1
Mux controls
MUX
Loopback controls
LB1
LB0
RSV control
RSV
Switch S and jumper J are connected in parallel for each logic control pin. When switch is being
used, jumper should be kept open. When jumper is used, the corresponding switch should be
kept at OFF position.
DS25MB100 EVK
Pattern
Generator
1000mVpp
differential
TRIG
D+
D-
JP17
J16.3/4
JP20
J16.1/2
S6
J21
S3
J3
S4
J4
S1
J1
S7
J22
S9
J25
S2
J2
S8
J24
S5
J5
JP8.2
3.3V ± 5%
0V
EQL enables or disables Equalizer at the line-side (IN±).
EQS enables or disables Equalizers at the switch-side (IN0± and IN1±).
When EQL or EQS is open, it is logic 1 (equalizer bypassed).
When EQL or EQS is strapped to GND, it is logic 0.
Set de-emphasis level for all outputs at the line side (OUT±).
When DEL_1 or DEL_0 is opened, it is logic 1.
When DEL_1 or DEL_0 is strapped to GND, it is logic 0.
Set de-emphasis level for all outputs at the switch side (OUT0±, and
OUT1±).
When DES_1 or DES_0 is opened, it is logic 1.
When DES_1 or DES_0 is strapped to GND, it is logic 0.
Set the multiplexer position to select IN0± or IN1±.
When MUX is opened, it is logic 1 (selects IN0±).
When MUX is strapped to GND, it is logic 0 (IN1±).
Enable or disable loopback.
When LB0 or LB1 is opened, it is logic 1 (No loopback).
When LB0 or LB1 is strapped to GND, it is logic 0 (normal mode).
Reserved for factory testing purposes.
JP8.2 is permanently tied to GND.
IN+
IN-
DS25MB100
EQ
DS25MB100-EVK
R
P.3
M
U
X
VCC=3.3V
D
GND
OUT+
OUT-
DC Block
Oscilloscope or
Jitter Measurement
Instrument
50
50
TRIG
Rev 2.0
4/23/08