DS1802 Datasheet, PDF (1/17 Pages) Dallas Semiconductor – Dual Audio Taper Potentiometer With Pushbutton Control

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DS1802
Dual Audio Taper Potentiometer
With Pushbutton Control
FEATURES
§ Ultra-low power consumption
§ Operates from 3V or 5V supplies
§ Two digitally controlled, 65-position
potentiometers including mute
§ Logarithmic resistive characteristics (1 dB
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 1
COUT 2
CLK 3
D4
RST 5
ZCEN 6
MODE 7
W0 8
L0 9
H0 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
H0, H1
W1,W2
V_CC
- Low End of Resistor
- High End of Resistor
- Wiper End of Resistor
- 3V/5V Power Supply Input
RST
D
CLK
MODE
UC0, UC1
DC0, DC1
VU, VD
B0, B1
GND
MUTE
AGND
- Serial Port Reset Input
- Serial Port Data Input
- Serial Port Clock Input
- Mode Select Input
- Up Control Pushbutton Inputs
- Down Control Pushbutton
Inputs
- Volume-Up/Volume-Down
Inputs
- Balance Pot-0, Pot-1 Inputs
- Digital Ground
- Mute
- Analog Ground
ZCEN
C_OUT
- Zero-Crossing Detect Input
- Cascade Output
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