Epson S1C31W65 Technical Manual page 319

23 ELECTRICAL CHARACTERISTICS
Waveforms for external clock input mode
V
T+
RFINn
RFC reference/sensor oscillation frequency-
resistance characteristic
C = 1,000 pF, Ta = 25°C, Typ. value
REF
1,000
V
DD
5.5 V
3.6 V
100
1.8 V
10
1
0.1
1 10
R
REF
RFC reference/sensor oscillation frequency-
temperature characteristic
R /R = 100 kW, C = 1,000 pF, Typ. value
REF SEN REF
25
20
15
10
5
0
-50 -25 0
23-20
1/f
RFCLK
V
T+
V
T-
∆f
/∆IC
RFCLK
100 1,000 10,000
/R [kΩ]
SEN
V
DD
5.5 V
3.6 V
1.8 V
25 50 75 100 125
Ta [°C]
Seiko Epson Corporation
1/f
V
T+
V
T-
RFC reference/sensor oscillation frequency-
capacitance characteristic
R /R = 100 kW, Ta = 25°C, Typ. value
REF SEN
1,000
V
DD
5.5 V
100
3.6 V
1.8 V
10
1
0.1
10 100
C
RFC reference/sensor oscillation current
consumption-frequency characteristic
C = 1,000 pF, Ta = 25°C, Typ. value
REF
3,000
2,500
2,000
1,500
1,000
500
0
1 10
RFCLK
V
T+
∆f
/∆IC
RFCLK
1,000 10,000 100,000
[pF]
REF
V = 5.5 V
DD
3.6 V
1.8 V
100 1,000
f [kHz]
RFCLK
S1C31W65 TECHNICAL MANUAL
(Rev. 1.1)