MAX5440EAG+ Maxim Integrated Products, MAX5440EAG+ Datasheet - Page 10

• Manufacturer Part Number: MAX5440EAG+
• Description: IC CNTRL VOL STEREO 24-SSOP
• Manufacturer: Maxim Integrated Products
• Type: Stereo Audio Volume Controlr

Specifications of MAX5440EAG+

• Applications: Automotive Systems, Desktop Audio, Set-Top Boxes
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Number Of Pots: Dual
• Taps Per Pot: 32
• Resistance: 1 Ohms
• Wiper Memory: Volatile
• Digital Interface: Serial
• Operating Supply Voltage: 2.7 V to 5.5 V
• Supply Current: 1.4 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Description/function: Stereo Volume Control with Rotary Encoder Interface
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Temperature Coefficient: 35 PPM / C
• Tolerance: 30 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Stereo Volume Control
with Rotary Encoder Interface
Figure 4a. Wiper Transition Timing Diagram—Suppression Circuitry Active
10
______________________________________________________________________________________
USER ROTATES ENCODER
00
01
WIPER MOTION
V
V
H_
L_
IS BOUNCING
CONTACT
SWITCH
DEBOUNCE BY WAITING
FOR STABLE LOW, t
t
LPW
IS STABLE
CONTACT
SWITCH
LPW
ZERO CROSSING, t
WAIT FOR FIRST
INPUT ACCEPTED
t
WS
WS
WIPER MOVES HERE
2dB STEPS
SWITCH CONTACT
IS BOUNCING
DEBOUNCE BY WAITING
FOR STABLE HIGH, t
t
HPW
HPW