SM9501A Datasheet, PDF (5/10 Pages) Nippon Precision Circuits Inc – Radio Controlled Clock Receiver IC

SM9501A/B
Electrical Characteristics
9501A version
V_DD = 2.4 to 3.6V, V_SS = 0V, Ta = −20 to +70°C unless otherwise noted.
Parameter
Symbol
Condition
Minimum operating voltage
Maximum operating voltage
Maximum operating current
consumption ¹
Operating current consumption¹
Standby mode current consumption
Minimum input voltage range
Maximum input voltage range
Input frequency
Analog switch resistance
Startup time²
Startup time² (PON)
PON input current
FCN input current
HLDN input current
LOW-level output current
HIGH-level output current
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)
Noise rejection ratio⁵
V _MIN
V _MAX
I_DDM
I_DDT
I _ST
V _FMIN
V _FMAX
F _IN
R_A
t_ON
t _PON
I _I1
I _I2
I _I3
I _OL
I _OH
t _HLD
t_DN
t_UP
T₂₀₀
T ₅₀₀
T ₈₀₀
S/N
V_DD = 3.0V, no input signal,
PON: VSS, OUT: OPEN
V_DD = 3.0V, 500ms pulsewidth,
0.1mVrms input (differential input),
PON: VSS, OUT: OPEN
PON, FCN, HLDN: VDD or OPEN
IN1–IN2 differential input
IN1–IN2 differential input
IN1–IN2 differential input
V|IN2–IN3| = 50mV, V_IN2 = 0V
When supply is applied
From standby mode
V_IN = 0V
V_IN = 0V
V_IN = 0V
V_DD = 2.4V, OUT = 0.5V
V_DD = 2.4V, OUT = 1.9V
± 3dB change
FIN = 40/60kHz, standard crystal,
NPC standard jig
V_IN = 1µVrms to 80mVrms
Rating
Unit
min
typ
max
–
–
2.4
V
3.6
–
–
V
–
65
100
µA
–
55
–
µA
–
–
0.1
µA
–
0.5
1.0
µVrms
80
–
–
mVrms
35
–
80
kHz
–
–
15
Ω
–
–
8
sec
–
–
8
sec
–
–
–1.5
µA
–
–
–1.5
µA
–
–
–1.5
µA
10
–
–
µA
–10
–
–
µA
–
–
1
sec
–
–
160
ms
–
–
200
ms
100
200
300
ms
400
500
650
ms
700
800
900
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 following equiv-
alent circuit coefficients.
L1 C1 R1
f [kHz]
40
60
L1 [kH]
6.70280
5.17396
C1 [fF]
2.36228
1.36007
R1 [kΩ]
11.4492
13.4826
C0 [pF]
1.42773
1.04927
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