User’s Guide
January 2012
DRIVECABLE04EVK
3
4
5
Contents
Introduction ................................................................................................................................................. 1
Setup .......................................................................................................................................................... 2
2.1 DRIVECABLE04-TX Setup ............................................................................................................... 2
2.2 DRIVECABLE04-RX Setup .............................................................................................................. 2
2.3 Operation .......................................................................................................................................... 3
Board Layout .............................................................................................................................................. 4
Schematics ...............................................................................................................................................10
Bill of Materials .........................................................................................................................................12
1
2
3
4
5
6
7
8
9
List of Figures
DRIVECABLE04-TX and DRIVECABLE04-RX ......................................................................................... 2
TOP Layer for DRIVECABLE04-TX and DRIVECABLE04-RX ................................................................. 4
GND1 Layer for DRIVECABLE04-TX and DRIVECABLE04-RX .............................................................. 5
GND2 Layer for DRIVECABLE04-TX and DRIVECABLE04-RX .............................................................. 6
VCC Layer for DRIVECABLE04-TX and DRIVECABLE04-RX ................................................................. 7
GND3 Layer for DRIVECABLE04-TX and DRIVECABLE04-R ................................................................. 8
BOTTOM Layer for DRIVECABLE04-TX and DRIVECABLE04-RX ......................................................... 9
DRIVECABLE04-TX Schematic .............................................................................................................. 10
DRIVECABLE04-RX Schematic.............................................................................................................. 11
1
2
3
List of Tables
EVK Contents ............................................................................................................................................ 1
DRIVECABLE04-TX Bill of Materials ...................................................................................................... 12
DRIVECABLE04-RX Bill of Materials ...................................................................................................... 12
1
2
1.
Introduction
The Texas Instruments DRIVECABLE04EVK evaluation kit (EVK) helps designers evaluate the operation and
performance of the cable extender chipset consisting of the DS30EA101 adaptive cable equalizer and the
DS30BA101 differential buffer. The kit enables evaluation of this chipset with 75 coaxial cables.
The EVK includes separate evaluation boards for the two devices – one board for the transmitter and the
other board for the receiver (see Table 1 and Figure 1).
Table 1: EVK Contents
SNLU071
EVALUATION BOARD
IC
DRIVECABLE04-TX
DRIVECABLE04-RX
DS30BA101
DS30EA101
FUNCTION
Cable Driver (Transmitter)
Cable Equalizer (Receiver)
DRIVECABLE04EVK
1
Setup
www.ti.com
Figure 1: DRIVECABLE04-TX (left) and DRIVECABLE04-RX (right)
2.
Setup
This section describes the connectors and jumpers on the boards as well as how to properly connect, set up,
and use the DRIVECABLE04-TX and DRIVECABLE04-RX boards.
2.1. DRIVECABLE04-TX Setup
BP3, BP4 – VCC, GND are the DC power banana jacks. BP3 and BP4 should be powered with a DC voltage
of 3.3V ± 5%.
S1, S2 – IN+, IN- are the 50 SMA input connectors for the DS30BA101 data inputs. These inputs have
onboard 1 F AC-coupling capacitors (C2 and C3), and are intended to receive a differential input signal via a
pair of 50 SMA cables.
B2, B1 – OUT+, OUT- are the 75 BNC output connectors for the DS30BA101 data outputs. These outputs
are intended to drive 75 coaxial cable. The DS30BA101 is a differential driver, and when using only one
output (one half of the differential pair), the unused output should be terminated with a 75 BNC termination.
2.2. DRIVECABLE04-RX Setup
BP1, BP2 – VCC, GND are the DC power banana jacks. BP3 and BP4 should be powered with a DC voltage
of 2.5V ± 5%.
B3 – IN+ is the 75 BNC input connector for the DS30EA101 data input. This input is intended to receive a
single-ended input signal via a 75 coaxial cable.
2
DRIVECABLE04EVK
SNLU071
www.ti.com
Setup
S3, S4 – OUT+, OUT- are the 50 SMA output connectors for the DS30EA101 data outputs. These outputs
have onboard 4.7 F AC-coupling capacitors (C13 and C14). The DS30EA101 has a differential output
driver, and when using only one output (one half of the differential pair), the unused output should be
terminated with a 50 SMA termination.
J3 – LOS, ¯¯¯
EN is the jumper for monitoring LOS and controlling ¯¯¯
EN . LOS is asserted high when no signal
is present at the DS30EA101 input. ¯¯¯
EN may be used to force the DS30EA101 outputs on or off, or tied to
LOS to allow automatic output enable operation. To force the outputs off, set the jumper to tie ¯¯¯
EN to VCC.
To force the outputs to be always on, set the jumper to tie ¯¯¯
EN to GND. For normal operation, set the jumper
to tie LOS to ¯¯¯
EN for automatic output enable control.
LED1 – LOS is the LED for the LOS status. This LED is GREEN when an input signal has been detected at
the DS30EA101 input, and OFF when no input signal is detected.
2.3. Operation
DRIVECABLE04-TX is the transmitter board and DRIVECABLE04-RX is the receiver board. To test these
boards, begin by applying the appropriate DC power to each board (3.3V for DRIVECABLE-TX and 2.5V for
DRIVECABLE-RX).
Apply a test signal within the DS30BA101 input specifications to the S1 and S2 50 SMA input connectors
on the DRIVECABLE04-TX board via a matched pair of 50 SMA cables.
The DS30BA101 on the DRIVECABLE04-TX board is configured to drive 75 coaxial cable. Connect this
cable to either the B1 or B2 75 BNC output connector. The other output may be sent to an oscilloscope or
other test equipment for monitoring, but if it is not used, it should be terminated with a 75 BNC termination.
Connect the other end of the 75 coaxial cable to the B3 75 BNC input connector on the DRIVECABLE04RX board. The equalized output may be observed via the S3 or S4 50 SMA output connector. Connect a
matched pair of 50 SMA cables to S3 and S4 to observe the differential output, or connect the cable to
either S3 or S4 to view the single-ended output. If only one output is used, the other output should be
terminated with a 50 SMA termination.
SNLU071
DRIVECABLE04EVK
3
Board Layout
3.
www.ti.com
Board Layout
Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, and Figure 7 show the board layout for the DRIVECABLE04TX and DRIVECABLE04-RX boards.
The DRIVECABLE04-TX and DRIVECABLE04-RX are 6-layer boards (TOP / GND1 / GND2 / VCC / GND3 /
BOTTOM). The 75 microstrip traces on the top layer of the boards are referenced to GND2, and the 100
differential traces are referenced to GND1.
Figure 2: TOP Layer for DRIVECABLE04-TX (left) and DRIVECABLE04-RX (right)
4
DRIVECABLE04EVK
SNLU071
www.ti.com
Board Layout
Figure 3: GND1 Layer for DRIVECABLE04-TX (left) and DRIVECABLE04-RX (right)
SNLU071
DRIVECABLE04EVK
5
Board Layout
www.ti.com
Figure 4: GND2 Layer for DRIVECABLE04-TX (left) and DRIVECABLE04-RX (right)
6
DRIVECABLE04EVK
SNLU071
www.ti.com
Board Layout
Figure 5: VCC Layer for DRIVECABLE04-TX (left) and DRIVECABLE04-RX (right)
SNLU071
DRIVECABLE04EVK
7
Board Layout
www.ti.com
Figure 6: GND3 Layer for DRIVECABLE04-TX (left) and DRIVECABLE04-RX (right)
8
DRIVECABLE04EVK
SNLU071
www.ti.com
Board Layout
Figure 7: BOTTOM Layer for DRIVECABLE04-TX (left) and DRIVECABLE04-RX (right)
SNLU071
DRIVECABLE04EVK
9
Schematics
4.
www.ti.com
Schematics
Figure 8: DRIVECABLE04-TX Schematic
10
DRIVECABLE04EVK
SNLU071
www.ti.com
Schematics
Figure 9: DRIVECABLE04-RX Schematic
SNLU071
DRIVECABLE04EVK
11
Bill of Materials
5.
www.ti.com
Bill of Materials
Table 2: DRIVECABLE04-TX Bill of Materials
REF DES
BP3, BP4
B1, B2
C2, C3
C4, C5, C24
C6, C7
C25, C26
C27
L1, L2
R1, R2, R6, R7
R4
R5
R42, R43
S1, S2
U1
QTY
2
2
2
3
2
2
1
2
4
1
1
2
2
1
DESCRIPTION
Banana Jack, uninsulated
BNC, 75‐ohm, edge launch
Capacitor, 1uF, 6.3V, X5R, 0402
Capacitor, 4.7uF, 6.3V, X5R, 0402
Capacitor, 0.1uF, 25V, X7R, 0603
Capacitor, 0.1uF, 6.3V, X7R, 0402
Capacitor, 0.01uF, 25V, X7R, 0402
Inductor, 5.6nH, 0402
Resistor, 75-ohm, 1/16W, 1%, 0402
Resistor, 750-ohm, 1/10W, 1%, 0603
Resistor, 100-ohm, 1/10W, 1%, 0603
Resistor, 0-ohm, 1/16W, 5%, 0402
SMA, 50-ohm, edge launch
DS30BA101
MFR
Emerson
Amphenol
Panasonic
Panasonic
Panasonic
Kemet
Kemet
Murata
Yageo
Panasonic
Panasonic
Panasonic
Emerson
Texas
Instruments
PART NUMBER
108-0740-001
31-6009
ECJ-0EB0J105M
ECJ-0EB0J475M
ECJ‐1VB1E104K
C0402C104K9RACTU
C0402C103J3RACTU
LQP15MN5N6B02D
RC0402FR-0775RL
ERJ-3EKF7500V
ERJ-3EKF1000V
ERJ-2GEJ0R00X
142-0701-851
DS30BA101SQ
Table 3: DRIVECABLE04-RX Bill of Materials
REF DES
BP1, BP2
B3
C8, C9
C13, C14, C23
C15, C16
C20
C21, C22
J3
LED1
L3
R27, R29
R25
R26, R66, R67, R68,
R69, R70
R28
R30, R44, R48
S3, S4
U2
12
DRIVECABLE04EVK
QTY
2
1
2
3
2
1
2
1
1
1
2
1
6
DESCRIPTION
Banana Jack, uninsulated
BNC, 75‐ohm, edge launch
Capacitor, 1uF, 6.3V, X5R, 0402
Capacitor, 4.7uF, 6.3V, X5R, 0402
Capacitor, 0.1uF, 25V, X7R, 0603
Capacitor, 0.01uF, 25V, X7R, 0402
Capacitor, 0.1uF, 6.3V, X7R, 0402
Header, 3x2, 0.1"
LED, Green, 0603
Inductor, 5.6nH, 0402
Resistor, 75-ohm, 1/16W, 1%, 0402
Resistor, 300-ohm, 1/10W, 5%, 0603
Resistor, 0-ohm, 1/20W, 0201
MFR
Emerson
Amphenol
Panasonic
Panasonic
Panasonic
Kemet
Kemet
3M
Lite-On
Murata
Yageo
Panasonic
Panasonic
PART NUMBER
108-0740-001
31-6009
ECJ-0EB0J105M
ECJ-0EB0J475M
ECJ‐1VB1E104K
C0402C103J3RACTU
C0402C104K9RACTU
929665-01-03-I
LTST-C190GKT
LQP15MN5N6B02D
RC0402FR-0775RL
ERJ-3GEYJ301V
ERJ-1GE0R00C
1
3
2
1
Resistor, 37.4-ohm, 1/16W, 1%, 0402
Resistor, 0-ohm, 1/16W, 5%, 0402
SMA, 50-ohm, edge launch
DS30EA101
Vishay/Dale
Panasonic
Emerson
Texas
Instruments
CRCW040237R4FKED
ERJ-2GEJ0R00X
142-0701-851
DS30EA101SQ
SNLU071
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