FEDL610Q409-05
ML610Q407/ML610Q408/ML610Q409
31/34
Condition for V
DD
=1.25 to 3.6V
(V
DD
=1.25 to 3.6V, V
SS
=0V, Ta=-20 to +70°C, Ta=-40 to +85°C for P version, unless otherwise specified)
Rating
Parameter Symbol Condition
Min. Typ. Max.
Unit
Oscillation resistor
RS0,RS1,RT0,
RT0-1,RT1
CS0, CT0, CS1≥740pF
1 ― ―
kΩ
f
OSC1
Resistor for oscillation=6kΩ
81.93 93.16 101.2 kHz
f
OSC2
Resistor for oscillation=15kΩ
35.32 38.75 41.48 kHz
Oscillation frequency
V
DD
= 1.5V
f
OSC3
Resistor for oscillation=105kΩ
5.22 5.65 6.03 kHz
Kf1
RT0, RT0-1, RT1=1kΩ
2.139 2.381 2.632
⎯
Kf2
RT0, RT0-1, RT1=10kΩ
0.973 1 1.028
⎯
RS to RT oscillation
frequency ratio
*1
V
DD
= 1.5V
Kf3
RT0, RT0-1, RT1=100kΩ
0.142 0.147 0.152
⎯
f
OSC1
Resistor for oscillation=6kΩ
85.28 94.58 103.3 kHz
f
OSC2
Resistor for oscillation=15kΩ
35.72 38.87 41.78 kHz
Oscillation frequency
V
DD
= 3.0V
f
OSC3
Resistor for oscillation=105kΩ
5.189 5.622 6.012 kHz
Kf1
RT0, RT0-1, RT1=1kΩ
2.227 2.432 2.626
⎯
Kf2
RT0, RT0-1, RT1=10kΩ
0.982 1 1.018
⎯
RS to RT oscillation
frequency ratio
*1
V
DD
= 3.0V
Kf3
RT0, RT0-1, RT1=100kΩ
0.141 0.145 0.149
⎯
*
1
: Kfx is the ratio of the oscillation frequency by the sensor resistor to the oscillation frequency by the reference resistor on the
same conditions.
f
OSCX
(RT0-CS0 oscillation)
f
OSCX
(RT0-1-CS0 oscillation) f
OSCX
(RT1-CS1 oscillation)
Kfx =
f
OSCX
(RS0-CS0 oscillation) , f
OSCX
(RS0-CS0 oscillation) , f
OSCX
(RS1-CS1 oscillation)
( x = 1, 2, 3 )
Note:
- Please have the shortest layout for the common node (wiring patterns which are connected to the external capacitors, resistors
and IN0/IN1 pin), including CVR0/CVR1. Especially, do not have long wire between IN0/IN1 and RS0/RS1. The coupling
capacitance on the wires may occur incorrect A/D conversion. Also, please do not have signals which may be a source of noise
around the node.
- When RT0/RT1 (Thermistor and etc.) requires long wiring due to the restricted placement, please have VSS(GND) trace next to
the signal.
- Please make wiring to components (capacitor, resisteor and etc.) necessory for objective measurement. Wiring to reserved
components may affect to the A/D conversion operation by noise the components itself may have.
RT0, RT0-1, RT1: 1kΩ/10kΩ/100kΩ
RA0, RA0-1, RA1: 5kΩ
RS0, RS1: 15kΩ
CS0, CT0, CS1: 560pF
CVR0, CVR1: 820pF
Frequency measurement (f
OSCX
)
Input pin
*1: Input logic circuit to determine the
ifi
m
rin
n
i
i
n
.
(Note 1)
V
DD
V
DDL
C
L
V
SS
C
V
RCM
VIH
VIL
CS0
RT0
IN1 CS1 RS1 RT1
CS0
RS0
RS0
RCT0
RT0-1
CT0
RT0
CS1
RS1
IN0
CVR0 CVR1
RA1
RA0-1
RT1
RA0
