User's Manual

Page 37
BitaTek Co., Ltd. Copyright protected. All rights reserved.
NO. 115 Wugong 3rd Rd., Tel [phone]
Wugu Dist., New Taipei City 248, Taiwan (R.O.C.) Fax[phone]
3.5.7. Vibrator
Parameter
Conditions
Min
Typ
Max
Units
Operational input
voltage
Connected at VDD_HAP (VH
below)
2.5
3.6
4.75
V
Output voltage
Peak, no load
Average (V_HA)
Maximum drive
Accuracy
At HAP_OUT_P and
HAP_OUT_N
Differential, over one PWM
cycle
Differential, over one PWM
cycle
Duty cycle < 95%
-
0
1.2
-
-
-
-
50
VH
3.6
3.6
-
V
V
V
mV
Output current limit
R_ERM or R_load
R_load = 10
Cycle-to-cycle limit
300
600
400
800
500
1000
mA
mA
Internal PWM
frequency
Programmable
options
Accuracy
253 kHz, 505 kHz, 739 kHz,
1076 kHz
253
-
503
-
1076
+/-16
KHz
%
3.5.8. Display ± bias
FREY M1 provides the plus and minus bias voltages for LCD displays; pertinent
performance specifications are listed as below.
Display plus bias
Parameter
Conditions
Min
Typ
Max
Units
Operational input voltage
Connected at VDD_DIS_P
2.5
-
4.75
V
Output voltage
(VDIS_P_OUT)
5.0
5.5
6.1
V