MAX155EVKIT-DIP Maxim Integrated, MAX155EVKIT-DIP Datasheet - Page 5

• Manufacturer Part Number: MAX155EVKIT-DIP
• Description: Data Conversion IC Development Tools Evaluation Kit for the MAX155
• Manufacturer: Maxim Integrated
• Series: MAX155, MAX156r

to get the 5MHz signal (10MHz divided by 2). Other
ratios can be used by cutting J10 and installing a
jumper across one of the other options (J11, J12, J13).
J4 and J5 select the MAX155 V
across J4 connects the -5V output of the MAX660 to the
MAX155’s V
bipolar input range. If J4 is opened and J5 shorted, V
is connected to ground. When V
inputs to the MAX155 should not be pulled below 0V.
J6 connects the MAX155 internal 2.5V reference to the
reference input pin. An external 2.5V reference can be
used by cutting the trace across J6 and connecting the
external source to the pad marked VREF IN.
J7 and J8 are connected to the MAX155 MODE pin.
Software selects the input range it both J7 and J8 are
left open. If fixed input ranges are desired, the appro-
priate jumper can be installed.
Table 3. Jumper-Selected Hardwired
Modes
JUMPER
MODE
OPEN
OPEN
J7
J7
J8
J8
SS
pin. This configuration is required for the
JUMPER
_______________________________________________________________________________________
V
J4
J5
J4
J5
J4
J5
SS
GND
GND
GND
V
-5V
-5V
-5V
SS
Negative Supply Voltage
MAX155 Mode Selection
Software-controlled,
multiplexer mode
(default mode)
Software-controlled, SE
or differential mode,
unipolar, or bipolar mode
(all analog inputs above
ground).
4-channel differential
bipolar mode
4-channel differential
unipolar mode
8-channel single-ended
bipolar mode
8-channel single-ended
bipolar mode
SS
SS
CONVERSION TYPE
External Reference
voltage. The trace
is grounded, the
SS
MAX155 Evaluation Kit
The MAX155 EV software cannot read the state of
jumpers J4–J8. The program must be manually config-
ured to agree with the hardwired mode if the jumpers
differ from the default condition.
The MAX155 EV kit board is shipped unassembled.
The only assembly tools needed are a standard solder-
ing iron with a grounded tip and wire cutters. Assembly
takes about an hour. The builder must have basic elec-
tronic skills such as soldering and the ability to deter-
mine component values.
Remove the board and parts from the box and perform
the following steps:
1) Verify that all parts on the component list are present.
2) Mount and solder the D9 and power connectors
3) Solder all resistors in place and trim their leads.
4) Solder all capacitors in place and trim their leads.
5) Solder the 10kΩ 10-lead SIP (RSIP1) into place.
6) Solder the 11.059MHz crystal in position.
7) Solder D1 (the 1N4001 diode) in place. Align the
8) Solder the 28-pin IC socket in the position marked
9) Solder a jumper set in J1 (MANUAL RESET) and J2
onto the board.
Observe the polarity of the tantalum capacitors. In-
sert the positive pin into the pad with the adjacent
“+” sign.
Polarity is marked on the board by the rounded end
of the legend. Match this end with the marked end
of the SIP (usually marked with a dot or a notch).
polarity bands on the diode and printed circuit
board.
IC7 27C64 and IC10 MAX155. All other ICs may be
socketed if desired.
(WDI ENABLE). Place the first shunt across the J2
jumper. Place the second shunt on one pin of J1
(leaving J1 open).
R1 . . . . . . . . . . . . . . . . . . . 32.4kΩ 1%
R2 . . . . . . . . . . . . . . . . . . . 13.0kΩ 1%
R3 . . . . . . . . . . . . . . . . . . . 10kΩ 5%
R4–R11 . . . . . . . . . . . . . . . 1kΩ 5%
C1, C2. . . . . . . . . . . . . . . . 27pF
C3, C6, C9, C11, C12,
C13, C14, C16, C17,
C18, C19, C20, C21 . . . . . 0.1µF
C4, C5, C7, C8,
C15 . . . . . . . . . . . . . . . . . . 10µF TANTALUM
C10, C22. . . . . . . . . . . . . . 33µF TANTALUM
Board Assembly
5