SM9501B Datasheet, PDF (4/8 Pages) Nippon Precision Circuits Inc – Radio Controlled Clock Receiver IC

SM9501B
Electrical Characteristics
V_DD = 4.5 to 5.5V, V_SS = 0V, Ta = −40 to +85°C unless otherwise noted.
Parameter
Supply 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)
Gain hold time
Input voltage
Input current
LOW-level output current
HIGH-level output current
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
Symbol
V _DD
I_DDM
I_DDT
I _ST
V _FMIN
V _FMAX
F _IN
R_A
t_ON
t _PON
t _HLD
V_IL
V_IH
I_IL
I_IH
I _OL
I _OH
t_DN
t_UP
T₂₀₀
T ₅₀₀
T ₈₀₀
S/N
Condition
V_DD = 5.0V, Ta = 25°C, no input signal,
PON: VSS, OUT: OPEN
V_DD = 5.0V, Ta = 25°C, 500ms pulsewidth,
0.1mVrms input (differential input),
PON: VSS, OUT: OPEN
PON: VDD or OPEN, FCN: VDD or OPEN,
HLDN: VDD or OPEN
IN1–IN2 differential input, FIN = 40kHz, 60kHz
Ta = 25°C
IN1–IN2 differential input, FIN = 40kHz, 60kHz
IN1–IN2 differential input
V_IN2 = 0V, V_IN3 = 50mV
When supply is applied
From standby mode
± 3dB change
PON, FCN, HLDN pins
PON, FCN, HLDN pins
V_IL = 0V, PON, FCN, HLDN pins
V_IH = V_DD, PON, FCN, HLDN pins
V_DD = 4.5V, OUT = 0.5V
V_DD = 4.5V, OUT = 4.0V
FIN = 40/60kHz, standard crystal,
NPC standard jig
V_IN = 1µVrms to 80mVrms
min
4.5
–
–
–
–
80
35
–
–
–
1
–
0.8V _DD
–
–
10
–10
–
–
100
400
700
–
Rating
typ
5.0
65
55
–
0.5
–
–
–
–
–
–
–
–
–
–
–
–
–
–
200
500
800
–
Unit
max
5.5
V
100
µA
–
µA
0.1
µA
1.0
µVrms
–
mVrms
80
kHz
15
Ω
8
sec
8
sec
–
sec
0.5
V
–
V
–3.2
µA
0.1
µA
–
µA
–
µA
160
ms
200
ms
300
ms
650
ms
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.
SEIKO NPC CORPORATION —4