DS1802+ Maxim Integrated Products, DS1802+ Datasheet - Page 5

IC POT DL AUDIO TAP W/PB 20-DIP

DS1802+

Manufacturer Part Number
DS1802+
Description
IC POT DL AUDIO TAP W/PB 20-DIP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS1802+

Taps
64
Resistance (ohms)
45K
Number Of Circuits
2
Temperature Coefficient
750 ppm/°C Typical
Memory Type
Volatile
Interface
3-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
20-DIP (0.300", 7.62mm)
Resistance In Ohms
45K
Number Of Pots
Dual
Taps Per Pot
65
Resistance
50 KOhms
Digital Interface
Serial (3-Wire)
Operating Supply Voltage
2.7 V to 5.5 V
Supply Current
2000 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
Dual Audio Taper Potentiometer
Mounting Style
Through Hole
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Tolerance
20 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
DS1802
SINGLE PUSHBUTTON CONFIGURATION Figure 2(a)
DUAL PUSHBUTTON CONFIGURATION Figure 2(b)
Contact closure is defined as the transition from a high level to a low level on the contact closure input
terminals. The DS1802 interprets input pulse widths as the means of controlling wiper movement. A
single pulse input over the UCx or DCx input terminals will cause the wiper to move one position. A
transition from high to low on these inputs is considered the beginning of pulse activity or contact
closure. A single pulse is defined as being greater than 1 ms but lasting no lo nger than a second. This is
shown is Figure 4(a).
Repetitive pulsed inputs can be used to step through each resistive position of the device in a relatively
fast manner (see Figure 4(b)). The requirement for repetitive pulsed inputs is that pulses must be
separated by a minimum time of 1 ms. If not, the DS1802 will interpret repetitive pulses as a single pulse.
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