ES51999
4 3/4 and 5 3/4 A/D AUTO
3. The detail timing between SCLK and STATUS is as follow:
(32 ~ 512)T with 30 ~ 70% duty cycle
(VCC)
(V-)
(VCC)
(V-)
S0
S1
Sn-1
Sn
S14
Serial Data Format (STATUS):
F0
0
F1
1
F2
2
Q0
3
Q1
4
Q2
5
C0
6
C1
7
C2
8
AC
9
ZERO
10
PEAK
11
PHCAL
12
X10
13
SLEEP
14
(All defaults are ‘0’)
F0, F1, F2 measurement selection.
F0
0
F1
0
F2 Measurement
0
1
0
1
0
1
0
Voltage2
0
0
Voltage with frequency3
Current2
0
1
0
1
Current with frequency3
Resistance
1
0
1
0
Diode
1
1
Frequency and duty cycle1
1
In Frequency and duty cycle measurement, ES51999 measures both the
frequency and duty cycle of the input signal FREQ (pin 45) simultaneously.
2 In Voltage/Current measurement, only voltage/current is measured.
3
In Voltage/Current with frequency measurement, the frequency of FREQ is
also measured in addition to voltage/current. Detailed descriptions of these
measurement modes, please see the following sections.
Q0, Q1, Q2 range selection.
Q0 Q1 Q2
V1
A1
F2 3
Ω1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
440mV
IVSH (pin 9)4
40Hz
420Ω
4.4V IVSL (pin 10) 4
400Hz
4KHz
4.2KΩ
42KΩ
420KΩ
4.2MΩ
42MΩ
44V
440V
4400V
40KHz
400KHz
4MHz
40MHz
400MHz
1When oscillator is 4MHz, voltage/current can be counted up to 44,000, and resistance
can be counted up to 42,000.
When oscillator is 10MHz, voltage/current can be counted up to 440,000, and resistance
can be counted to 420,000.
6
07/07/06
CYRUSTEK [ Cyrustek corporation ]
