DS1801 Datasheet, PDF (9/10 Pages) Dallas Semiconductor – Dual Audio Taper Potentiometer

DS1801
AC ELECTRICAL CHARACTERISTICS (-40°C to +85°C; V_CC=2.7V to 5.5V)
PARAMETER
SYMBOL MIN
TYP MAX UNITS NOTES
CLK Frequency
Width of CLK Pulse
Data Setup Time
Data Hold Time
Propagation Delay Time
Low to High Level
Clock to Output
f_CLK
DC
t_CH
50
t_DC
30
t_CDH
10
t_PLH
10
MHz
7
ns
7
ns
7
ns
7
50
ns
7
Propagation Delay Time
t_PLH
Low to High Level
RST High to Clock Input High
t_CC
50
50
ns
7
ns
7
RST Low to Clock Input High
t_HLT
50
ns
7
CLK Rise Time
RST Inactive
t_CR
t_RLT
200
60
ns
7
ns
7
NOTES:
1. All voltages are referenced to ground.
2. Valid for V_CC = 2V only.
3. Capacitance values apply at 25°C.
4. Inter-channel matching is used to determine the relative voltage difference in dB between the same
tap position on each potentiometer. The DS1801 is specified for ±0.5 dB inter-channel matching.
5. Tap-to-tap tolerance is used to determine the change in voltage between successive tap positions. The
DS1801 is specified for ±0.25 dB tap-to-tap tolerance.
6. Typical values are for T_A =25°C and nominal supply voltage.
7. See Figure 3.
8. Absolute tolerance is used to determine measured wiper voltage vs. expected wiper voltage as
determined by wiper position. The DS1801 is bounded by a ±1 dB absolute tolerance.
9. Maximum current specifications are based on clock rate and active zero-crossing detection. See
Figure 5 for clock rate vs. current specification.
10. See Figure 7.
11. Standby current levels apply when all inputs are driven to appropriate supply levels.
12. These parameters are characterized and not 100% tested.
13. Valid at 25° C only.
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