SM9501A/B
Electrical Characteristics
9501A version
V
= 2.4 to 3.6V, V = 0V, Ta = −20 to +70°C unless otherwise noted.
SS
DD
Rating
Parameter
Symbol
Condition
Unit
min
–
typ
–
max
2.4
–
Minimum operating voltage
Maximum operating voltage
Maximum operating current
V
V
V
MIN
V
3.6
–
MAX
V
= 3.0V, no input signal,
PON: VSS, OUT: OPEN
DD
I
–
–
65
55
100
–
ꢀA
ꢀA
1
DDM
consumption
V
= 3.0V, 500ms pulsewidth,
DD
1
Operating current consumption
I
0.1mVrms input (differential input),
PON: VSS, OUT: OPEN
DDT
Standby mode current consumption
Minimum input voltage range
Maximum input voltage range
Input frequency
I
PON, FCN, HLDN: VDD or OPEN
IN1–IN2 differential input
IN1–IN2 differential input
IN1–IN2 differential input
–
–
–
0.5
–
0.1
1.0
–
ꢀA
ꢀVrms
mVrms
kHz
Ω
ST
V
FMIN
V
80
35
–
FMAX
F
–
80
IN
Analog switch resistance
R
V|IN2–IN3| = 50mV, V = 0V
IN2
–
15
A
2
Startup time
t
When supply is applied
From standby mode
–
–
8
sec
sec
ꢀA
ON
2
Startup time (PON)
t
–
–
8
PON
PON input current
I
V
V
V
V
V
= 0V
–
–
–1.5
–1.5
–1.5
–
I1
IN
IN
IN
FCN input current
I
= 0V
–
–
ꢀA
I2
HLDN input current
LOW-level output current
HIGH-level output current
Gain hold time
I
= 0V
–
–
ꢀA
I3
I
= 2.4V, OUT = 0.5V
10
–10
–
–
ꢀA
OL
DD
DD
I
= 2.4V, OUT = 1.9V
–
–
ꢀA
OH
t
3dB change
–
1
sec
ms
HLD
3
Fall time output propagation delay
t
–
–
160
200
300
650
900
9
DN
3
Rise time output propagation delay
t
–
–
ms
UP
4
FIN = 40/60kHz, standard crystal,
NPC standard jig
LOW-level output pulsewidth (200ms)
T
100
400
700
–
200
500
800
–
ms
200
4
LOW-level output pulsewidth (500ms)
T
ms
500
V = 1µVrms to 80mVrms
IN
4
LOW-level output pulsewidth (800ms)
T
ms
800
5
Noise rejection ratio
S/N
dB
1. Measured using the standard circuit.
2. The time taken under stable wave input conditions from when power is applied or standby is released, using PON, until stable digital output occurs
within ratings.
3. The time taken, with 10:1 input signal amplitude ratio and 500ms pulsewidth, from when a change in signal input occurs until the output OUT changes.
Note that this characteristic is very dependent on the antenna and crystal filter characteristics. The standard crystal used here has the following equiv-
alent circuit coefficients.
L1
C1
R1
f [kHz]
40
L1 [kH]
6.70280
5.17396
C1 [fF]
2.36228
1.36007
R1 [kΩ]
11.4492
13.4826
C0 [pF]
1.42773
1.04927
60
C0
4. Values obtained when using the standard crystal employed here. Note that these values are dependent on the crystal characteristics, and should be
considered as reference values.
5. Time averaged rms values, where the noise is white noise and the measurement bandwidth is determined by the crystal filter equivalent used in the
standard circuit.
NIPPON PRECISION CIRCUITS INC.—5
NPC [ NIPPON PRECISION CIRCUITS INC ]
