SM9503A Datasheet, PDF (5/9 Pages) Nippon Precision Circuits Inc – Radio Controlled Clock Receiver IC

SM9503A
Electrical Characteristics
V_DD = 1.2 to 3.6V, V_SS = 0V, Ta = −20 to 70°C unless otherwise noted.
Parameter
Symbol
Condition
Operating supply voltage
Maximum operating current
consumption ¹
Normal operating current
consumption ¹
Standby mode current consumption
Minimum input voltage range
Maximum input voltage range
Input frequency
Startup time²
Startup time (PON)²
Input voltage
Input current
Output voltage
Gain hold time
Fall time output propagation delay³
Rise time output propagation delay³
LOW-level output pulsewidth⁴
(200ms)
LOW-level output pulsewidth⁴
(500ms)
LOW-level output pulsewidth⁴
(800ms)
LOW-level output pulsewidth⁴
(900ms)
Noise rejection ratio⁵
V _DD
I_DDM
I_DDT
I _ST
V _FMIN
V _FMAX
F _IN
t_ON
t_PON
V_IL
V_IH
I_IL
I_IH
V_OL
V_OH
t _HLD
t_DN
t_UP
V_DD = 1.5V, Ta = 25°C, no input signal,
PON: V_SS, OUT: Open
V_DD = 1.5V, Ta = 25°C,
0.1mVrms input amplitude (differential
input),
500ms pulsewidth, PON: V_SS, OUT: Open
PON, HLDN: V_DD or Open
IN1−IN2 differential input, F_IN = 60kHz
IN1−IN2 differential input, F_IN = 60kHz
IN1−IN2 differential input
When supply is applied
From standby mode
PON, HLDN
PON, HLDN
V_IN = 0V, PON, HLDN
V_IN = V_DD, PON, HLDN
I_OL = 5µA, OUT
I_OH = − 5µA, OUT
≤ ± 3dB variation
T₂₀₀
T₅₀₀ FIN = 60kHz, NPC standard crystal,
NPC standard jig
T₈₀₀
T₉₀₀
S/N
min
1.2
–
–
–
–
80
35
–
–
–
V_DD – 0.2
−1
–
–
V_DD – 0.2
1
–
–
100
400
TBD
TBD
–
Rating
typ
–
50
36
–
0.3
–
–
–
–
–
–
–
–
–
–
–
–
–
200
500
800
900
–
Unit
max
3.6
V
80
µA
–
µA
0.1
µA
1.0
µVrms
–
mVrms
80
kHz
8
sec
8
sec
0.2
V
–
V
–
µA
1
µA
0.2
V
–
V
–
sec
160
ms
200
ms
300
ms
650
ms
TBD
ms
TBD
ms
9
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 fol-
lowing equivalent circuit coefficients.
L1 C1 R1
f [kHz]
60
L1 [kH]
TBD
C1 [fF]
TBD
R1 [kΩ]
TBD
C0 [pF]
TBD
C0
4. Values obtained when using the NPC 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