MAX5456EEE+ Maxim Integrated Products, MAX5456EEE+ Datasheet - Page 11
![IC POT STER AUDIO TAPER 16-QSOP](/photos/6/61/66127/175-16-qsop_sml.jpg)
MAX5456EEE+
Manufacturer Part Number
MAX5456EEE+
Description
IC POT STER AUDIO TAPER 16-QSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5457EEE.pdf
(20 pages)
Specifications of MAX5456EEE+
Taps
32
Resistance (ohms)
10K
Number Of Circuits
2
Temperature Coefficient
50 ppm/°C Typical
Memory Type
Volatile
Interface
Pushbutton
Voltage - Supply
2.7 V ~ 5.5 V, ±2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
Resistance In Ohms
10K
Number Of Pots
Dual
Taps Per Pot
32
Resistance
10 KOhms
Wiper Memory
Volatile
Digital Interface
Up/Down
Operating Supply Voltage
2.7 V to 5.5 V
Supply Current
1 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Description/function
Stereo Audio Taper Potentiometer
Mounting Style
SMD/SMT
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Tolerance
30 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Upon entering 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 (see Figure 2). Shutdown does not affect the
state of MODE_IND.
The MAX5456/MAX5457 feature a mute function. Success-
ive pulses on MUTE toggle its setting. Activating the mute
Figure 5b. Wiper Transition Timing Diagram
______________________________________________________________________________________
1
0
Mute Function, MUTE
V
V
H
L
Stereo Audio Taper Potentiometers
IS BOUNCING
CONTACT
SWITCH
Shutdown, SHDN
DEBOUNCE BY
WAITING FOR
STABLE LOW,
IS STABLE
CONTACT
SWITCH
t
t
IPW
IPW
(t
IPW
+ t
CROSSING OR
TIMEOUT, t
WS
FIRST ZERO
WAIT FOR
INPUT ACCEPTED
)
with Pushbutton Interface
t
WS
WS
function forces both wipers to maximum attenuation (-
90dB typ). Deactivating the mute function returns the
wipers to their previous settings. Pressing VOLUP also
deactivates mute, setting the wipers to their previous
positions. MUTE is internally pulled high with a 50kΩ
resistor to VLOGIC. When both wipers are in the 31st
tap position (-62dB attenuation), further commands to
VOLDN place the wipers in the mute position (see
Table 1). VOLUP or MUTE pulses return the wipers to
position 31.
WIPER MOVES HERE
IS BOUNCING
CONTACT
SWITCH
STABLE HIGH, t
2dB
STEPS
DEBOUNCE BY
WAITING FOR
t
HPW
HPW
READY TO ACCEPT
ANOTHER KEYPRESS
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