Rainbow Electronics MAX5457 User Manual

Page 2

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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

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

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

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

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