MAX126EVKIT Maxim Integrated Products, MAX126EVKIT Datasheet - Page 11

• Manufacturer Part Number: MAX126EVKIT
• Description: EVAL KIT FOR MAX126
• Manufacturer: Maxim Integrated Products

Specifications of MAX126EVKIT

• Number Of Adc's: 4
• Number Of Bits: 14
• Sampling Rate (per Second): 250k
• Data Interface: Parallel
• Inputs Per Adc: 2 Single
• Input Range: ±2.5 V
• Power (typ) @ Conditions: 165mW @ 250kSPS
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: 0°C ~ 70°C
• Utilized Ic / Part: MAX126
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The 68HC16MOD-16WIDE module includes a self-diag-
nostic routine, which checks the power supply, micro-
processor, RAM, and ROM, independent of the EV kit
or computer. Note that it does not exercise the RS-232
port or the EV kit 80-pin interface. Connect the power
supply to the power terminals (J2) and slide the power
switch SW1 to the “ON” position. The LED will light up,
and will flash within 5 seconds.
If the LED flashes with a 50% duty cycle, then the module
passed its self check.
Table 2. P1 and P2 Data-Connector Signals
HEADER
P1
_______________________________________________________________________________________
9, 10
PIN
1, 4
5, 6
7, 8
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Self Check
VPREREG
PCS0/SS
PWMB
PWMA
NAME
PCS2
PCS3
PCS1
MOSI
MISO
GND
-12V
SCK
OC1
OC2
OC4
OC3
+5V
IC2
IC1
IC3
PAI
IC4
—
—
Ground return
+12V from wall cube
+5V from 78M05
-12V from ICL7662 (typically -8V at 15mA load)
QSPI peripheral chip select 2
QSPI peripheral chip select 3
QSPI peripheral chip select 0
QSPI peripheral chip select 1
QSPI Master Output, Slave Input
QSPI Serial Clock
Not used
QSPI Master Input, Slave Output
General purpose I/O; Input Capture 2; can be used as an IRQ
General purpose I/O; Input Capture 1; can be used as an IRQ
General purpose I/O; Output Compare 1
General purpose I/O; Input Capture 3; can be used as an IRQ
Not used
General purpose I/O; Output Compare 2
General purpose I/O; Output Compare 4
General purpose I/O; Output Compare 3
Pulse Accumulator Input
General purpose I/O; Input Capture 4; can be used as an IRQ
Pulse-Width Modulator B output (drives the status LED)
Pulse-Width Modulator A output
If the LED flashes with a 10%-on/90%-off duty cycle,
then the module failed its self check. Most likely, one of
the RAM chips (U5 or U8) is bad.
If the LED remains on and does not flash, then the prob-
lem is either U3 (the EPROM), U1 (the microprocessor),
U4 (the regulator), the MAX707 reset generator, or the
power supply. Use a voltmeter to verify that the power
supplies are good; check the power-supply input and the
+5V output from the regulator. Use an oscilloscope to see
if the 32.768kHz reference oscillator is running.
68HC16MOD-16WIDE
68HC16-16WIDE MODULE FUNCTION
3