DS1802
FEATURES
- Ultra- low power consumption
- Operates from 3V or 5V supplies
- Two digitally controlled, 65-position potentiometers including mute
- Logarithmic resistive characteristics (1 d B per step)
- Zero-crossing detection eliminates noise caused by wiper movement
- Digital or mechanical pushbutton wiper control
- Serial port provides means for setting and reading both potentiometers wipers
- 20-pin SOIC and 20-pin TSSOP for surface mount applications
- Operating Temperature Range:
-40°C to +85°C
- Software and hardware mute
- Resistance Available: 45 kΩ
PIN ASSIGNMENT
GND COUT
CLK D
RST ZCEN MODE
W0 L0 H0
1 2 3 4 5 6 7 8 9 10
20 VCC 19 VU (UC1) 18 VD (DC1) 17 B0 (UC0) 16 B1 (DC0) 15 MUTE 14 AGND 13 H1 12 L1 11 W1
20-Pin DIP (300-mil) 20-Pin SOIC (300-mil) 20-Pin TSSOP (173-mil) See Mech. Drawings Section
PIN DESCRIPTION
L0, L1
- Low End of Resistor
H0, H1
- High End of Resistor
W1,W2
- Wiper End of Resistor
- 3V/5V Power Supply Input
D CLK MODE UC0, UC1 DC0,...
