H1137 Datasheet, PDF (2/6 Pages) EM Microelectronic - MARIN SA – CMOS circuit for Analog Quartz Watches

R
H1137
Absolute Maximum Ratings
Handling Procedures
Parameter
Supply voltage
Voltage applied
to other terminals
Storage tem-
perature
Symbol
V_N
T_STOR
Min.
-3.6
V_N –0.3
-55
Typ.
Max.
+0.2
V_P +0.3
+125
Units
V
V
°C
This device contains circuitry to protect the terminals
against damage due to high static voltages or electrical
fields. However, it is advised that normal precautions be
taken to avoid application of any voltage higher than
maximum rated voltages to this circuit.
Stresses beyond these listed maximum ratings may
cause permanent damage to the device. Exposure to
conditions beyond specified operating conditions may
affect device reliability or cause malfunction.
Recommended Operating Conditions
Operating Conditions
Parameter
Ambient temperature
Quartz frequency
Quartz series resistance
Motor coil resistance
Positive supply
Negative supply
Supply source resistance
Symbol
T
f_Q
R_Q
R_M
VP
V_N
R_I
Value
25
32768
30
2.0
0
-1.55
10
Units
°C
Hz
kΩ
kΩ
V
V
Ω
Parameter
Operating temperature
Quartz series resistance
Trimmer capacitance
Symbol
T_OPR
C_TR
Min.
-10
3
Typ.
30
Max.
+60
50
30
Units
°C
kΩ
pF
Electrical and Switching Characteristics
at recommended operating conditions unless otherwise specified
Parameter
Supply voltage range
Mean dynamic current
Symbol
V_N
I_DYN
Mean current consumption
I_N
Oscillator
Transconductance
Starting voltage
Starting time
Stability df / f*dV_N
Motors Drivers
Voltage across motor
Voltage across motor
Voltage across motor
Short circuit impedance
Test Input / Output
Amplitude
Mean current
Reset Input
Debounce delay
Input current after debounce delay^*
gm
V_ST
T_ST
V_MOT
V_MOT
V_MOT
R_CC
V_TST
I_TST
T_S
I_S
Test Conditions
Without motor and quartz,
32kHz inverted square wave forced
at OSC_IN and OSC_OUT, TEST open
With quartz, without motor,
TEST open, C_TR = 12 pF
V_N = 1.2V, V_PP = 300mV
Within 10 seconds
Recommended operating conditions
Between –1.4V and –1.6V
V_N = -1.55V, R_M = 2k Ω
V_N = -1.25V, R_M = 2k Ω
R_I = 300 Ω, T_OPR
Between motor pulses
ZI = 30pF // 1M Ω
Pad connected to V_P
Pad connected to V_P
Min.
-1.8
2.5
1.35
1.0
1.0
1.35
7.81
Typ.
-1.55
90
200
0.75
1.5
1.40
1.10
1.20
150
70
7
Max.
-1.2
150
Units
V
nA
350
nA
µmho
V
2
s
ppm/V
V
V
V
300
Ω
V_PP
250
nA
23.43 ms
50
nA
* Is the average input current, modulated by a frequency of 64 Hz
Copyright © 2004, EM Microelectronic-Marin SA
2
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