MAX5456 MAXIM [Maxim Integrated Products], MAX5456 Datasheet - Page 6

• Manufacturer Part Number: MAX5456
• Description: Stereo Audio Taper Potentiometers with Pushbutton Interface
• Manufacturer: MAXIM [Maxim Integrated Products]

Stereo Audio Taper Potentiometers
with Pushbutton Interface
6
TQFN QSOP
10
11
12
13
14
15
16
—
—
—
—
MAX5457
1
2
3
4
5
6
7
8
9
_______________________________________________________________________________________
10
11
12
13
14
15
16
—
—
—
—
3
4
5
6
7
8
9
1
2
PIN
TQFN
10
11
12
13
14
15
16
—
—
—
—
MAX5456
3
4
5
6
7
8
9
1
2
QSOP
10
11
12
13
14
15
16
—
—
—
—
5
6
7
8
9
3
4
1
2
MODE_IND
DN/BAL0
UP/BAL1
VOLDN
V
VOLUP
NAME
MODE
SHDN
MUTE
BAL1
BAL0
GND
LOGIC
V
V
W0
W1
H0
H1
L0
L1
DD
SS
Volume/Balance Control. Each transition from high to low toggles between volume
and balance modes. MODE is pulled high internally with a 50kΩ resistor to V
On power-up, the MAX5457 is in volume-control mode.
Volume-Control/Balance-Control Mode Indicator Open-Drain Output. Connect to
an LED through a resistor to V
balance-control mode. When the LED is off, the MAX5457 is in volume-control
mode. See the Mode Indicator, MODE_IND section for more detail.
Potentiometer 0 High Terminal. H0 and L0 terminals can be reversed.
Potentiometer 0 Low Terminal. L0 and H0 terminals can be reversed.
Potentiometer 0 Wiper Terminal
Active-Low Shutdown Input. In shutdown mode, the MAX5456/MAX5457 store the
last wiper settings. The wipers move to the L end of the resistor string, and the H
end of the resistor string disconnects from the signal input. Terminating shutdown
mode restores the wipers to their previous settings.
Mute Input. When MUTE is low, the wiper goes to the highest attenuation setting
(see Table 1). MUTE is internally pulled up with 50kΩ to V
Potentiometer 1 Wiper Terminal
Potentiometer 1 Low Terminal. L1 and H1 terminals can be reversed.
Potentiometer 1 High Terminal. H1 and L1 terminals can be reversed.
Negative Power Supply. Bypass with 0.1µF to ground.
Ground
Digital Logic Power Supply. Bypass with 0.1µF to ground.
Analog Power Supply. Bypass with 0.1µF to ground.
Downward Volume/Channel 0 Balance-Control Input. In volume mode, pressing
DN/BAL0 moves both wipers towards the L terminals. In balance mode, pressing
DN/BAL0 moves the balance towards channel 0. DN/BAL0 is internally pulled up
with 50kΩ to V
Upward Volume/Channel 1 Balance-Control Input. In volume mode, pressing
UP/BAL1 moves both wipers towards the H terminals. In balance mode, pressing
UP/BAL1 moves the balance towards channel 1. UP/BAL1 is internally pulled up
with 50kΩ to V
Channel 1 Balance-Control Input. Pressing BAL1 moves the balance towards
channel 1. BAL1 is internally pulled up with 50kΩ to V
Channel 0 Balance-Control Input. Pressing BAL0 moves the balance towards
channel 0. BAL0 is internally pulled up with 50kΩ to V
Downward Volume-Control Input. Pressing VOLDN moves both wipers towards
the L terminals. VOLDN is internally pulled up with 50kΩ to V
Upward Volume-Control Input. Pressing VOLUP moves both wipers towards the
H terminals. VOLUP is internally pulled up with 50kΩ to V
LOGIC
LOGIC
.
.
LOGIC
. When the LED is on, the MAX5457 is in
FUNCTION
LOGIC
LOGIC
Pin Description
LOGIC
LOGIC
.
.
LOGIC
.
.
.
LOGIC
.