DS1050 Datasheet, PDF (8/17 Pages) Dallas Semiconductor – 5-Bit, Programmable, Pulse-Width Modulator: 1kHz, 5kHz, 10kHz, and 25kHz

AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL CONDITION
SCL Clock
Frequency
f_SCL
Fast Mode
Standard Mode
Bus Free Time
Between STOP and
t_BUF
Fast Mode
Standard Mode
START Condition
Hold Time
(Repeated) START
t_HD:STA
Fast Mode
Standard Mode
Condition
Low Period of SCL
Clock
t_LOW
Fast Mode
Standard Mode
High Period of SCL
Clock
t_HIGH
Fast Mode
Standard Mode
Data Hold Time
t_HD:DAT
Fast Mode
Standard Mode
Data Set-Up Time
t_SU:DAT
Fast Mode
Standard Mode
Rise Time of Both
SDA and SCL
t_R
Fast Mode
Standard Mode
Signals
Fall Time of Both
SDA and SCL
t_F
Fast Mode
Standard Mode
Signals
Set-Up Time for
STOP Condition
t_SU:STO
Fast Mode
Standard Mode
Capacitive Load for
CB
Fast Mode
Each Bus Line
Standard Mode
PWM Output
Change
t_PWMo
Fast Mode
Standard Mode
DS1050
(-40°C to +85°C; V_CC = 2.7V to 5.5V)
MIN TYP MAX UNITS NOTES
0
400
kHz
6
0
100
1.3
ms
6
4.7
0.6
ms
7, 6
4.0
1.3
4.7
0.6
4.0
0
0
100
250
20+0.1C_B
0.9
300
1000
ms
6
ms
6
ms 6, 8, 9
ns
6
ns
10
20+0.1C_B
300
ns
10
300
0.6
ms
4.0
400
pF
10
2
periods 11
AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL CONDITION
Output Frequency
Tolerance
Output Impedance
Absolute Linearity
Relative Linearity
Resolution
Frequency
Temperature
Coefficient
Frequency Voltage
Coefficient
(-40°C to +85°C; V_CC = 2.7V to 5.5V)
MIN TYP MAX UNITS NOTES
-20
+20
%
12
200
W
-0.5
+0.5
LSB
14
-0.25
+0.25 LSB
15
5
Bits
13
±200
ppm/ºC
1.5
% per
V
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