Maxim MAX1415EUE Guía de usuario descargar pdf (Pagina 5)

Evaluate: MAX1416/MAX1415/MX7705

MAX1416 Evaluation Kit/Evaluation System

_______________________________________________________________________________________ 5

Figure 1. MAX1416 EV Kit Software Main Window (Measurement Tab)

Problem: Internal oscillator does not work.

The internal-oscillator mode is a feature of the

MAX1416/MAX1415 only, and is not supported on the

MX7705. The MX7705 requires an external clock, and

can only be used with INT = 0. To observe the internal

oscillator driving the MCLKOUT pin, U1 must be a

MAX1416 or MAX1415, and the clock register must

have INT = 1 and CLKDIS = 0.

Problem: Measurements are erratic or unstable or

there is poor accuracy.

Check the reference voltage using a digital voltmeter.

Use an oscilloscope to check for noise. When probing

for noise, keep the oscilloscope ground-return lead as

short as possible, preferably less than 1/2 in (10mm).

Problem: Unacceptable errors when measuring a

transducer.

Although most signal sources can be connected direct-

ly to the MAX1416’s analog input, some high-imped-

ance signal sources may require using the internal

input buffer (BUF = 1).

Problem: PDA hot-sync software or other device

software interferes with EV kit software.

COM ports can only be used by one device at a time.

Disable PDA hot-sync manager.

1 2 3 4 5 6 7 8 9 10 ... 13 14

Sin comentarios

Maxim MAX1415EUE Guía de usuario Pagina 5