Rainbow Electronics MAX5457 User Manual
Page 2
MAX5456/MAX5457
Stereo Audio Taper Potentiometers
with Pushbutton Interface
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= V
LOGIC
= +2.7V to +5.5V, V
SS
= 0V, GND = 0V, V
H_
= V
DD
, V
L_
= V
SS
, T
A
= T
MIN
to T
MAX
. Typical values are at T
A
= +25°C,
unless otherwise specified.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(MAX5456) SHDN, MUTE, VOLUP, VOLDN,
BAL_ to GND.....................................-0.3V to (V
LOGIC
+ 0.3V)
(MAX5457) SHDN, MUTE, UP/BAL1, DN/BAL0, MODE,
MODE_IND to GND...........................-0.3V to (V
LOGIC
+ 0.3V)
H_, L_, and W_ to V
SS
..............................-0.3V to (V
DD
+ 0.3 V)
V
DD
to GND ..............................................................-0.3V to +6V
V
DD
to V
SS
................................................................-0.3V to +6V
V
LOGIC
to GND.........................................................-0.3V to +6V
V
LOGIC
to V
SS
...........................................................-0.3V to +6V
V
SS
to GND............................................................-3.0V to +0.3V
Peak Current into H_, L_, and W_.......................................±1mA
Average Current into H_, L_, and W_ ..............................±500µA
Input and Output Latchup Immunity...............................±200mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)........666.7mW
16-Pin TQFN (derate 16.9mW/°C above +70°C) ....1349.1mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
End-to-End Resistance
R
Figures 1, 2
7
10
13
k
Ω
Maximum Bandwidth
f
CUTOFF
From H_ to W_, C
LOAD
= 10pF
100
kHz
Absolute Ratio Tolerance
N o l oad at the outp ut of the w i p er , W _ = - 6d B
±0.25
dB
Tap-to-Tap Tolerance
±0.1
dB
V
DD
= 5V, V
H_
= (V
DD
/ 2) + 1V
RMS
,
f = 1kHz, tap = -6dB, V
L_
= V
DD
/ 2, R
L
=
∞
0.01
Total Harmonic Distortion Plus
Noise
THD+N
V
DD
= 3V, V
SS
= 0V, V
L_
= 1.5V,
V
H_
= 1.5V + 1V
RMS
, f = 1kHz, R
L
= 10k
Ω to
(V
DD
/ 2), C
L
= 5pF, tap = -6dB
0.23
%
Channel-to-Channel Isolation
-100
dB
Interchannel Matching
f = 20Hz to 20kHz, tap = -6dB
±0.5
dB
Mute Attenuation
-90
dB
Power-Supply Rejection Ratio
PSRR
-80
dB
Wiper Resistance
R
W
1000
1700
Ω
Wiper Capacitance
C
W
10
pF
H Terminal Capacitance
C
H
5
pF
L Terminal Capacitance
C
L
7
pF
End-to-End Resistance
Temperature Coefficient
50
ppm/°C
Ratiometric Resistance
Temperature Coefficient
5
ppm/°C
Output Noise
e
n
20Hz to 20kHz
0.95
µV
RMS
PUSHBUTTON CONTACT INPUTS (
UP/BAL1, DN/BAL0, MUTE, VOLUP, VOLDN, BAL0, BAL1, MODE)
Internal Pullup Resistor
R
PULLUP
32
50
65
k
Ω
Single Pulse-Width Input
t
lPW
Figure 5
22.5
ms
Repetitive Input Pulse High Time
t
HPW
Figure 5
40
ms
Timeout Period
t
WS
Click/pop suppression inactive
32
ms