MAX97220B Просмотр технического описания (PDF) - Maxim Integrated

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MAX97220B

Differential Input DirectDrive Line Drivers/Headphone Amplifiers

Maxim Integrated 

Differential Input DirectDrive

Line Drivers/Headphone Amplifiers

ELECTRICAL CHARACTERISTICS (continued)

(VPVDD = VSVDD = VSVDD2 = 5V, VPGND = VSGND = 0V, CBIAS = 0.1µF, C1 = C2 = 1µF, RIN = 20kω, RF = 20kω (MAX97220A/

MAX97220B/MAX97220E), typical values tested at TA = +25°C, unless otherwise noted.) (Notes 2 and 3)

PARAMETER

Click-and-Pop Level (Note 5)

LOGIC INPUT (SHDN)

SHDN Input Logic-High

SHDN Input Logic-Low

SHDN Input Leakage Current

High

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

32 samples per second, Into shutdown

-70

A-weighted, RL = 10kI, Out of

unity gain

shutdown

-70

KCP

dBV

32 samples per second, Into shutdown

-76

A-weighted, RL = 32I,

unity gain

Out of

shutdown

-76

VIH

VIL

IIH

TA = +25NC

1.4

V

0.4

V

1

FA

SHDN Input Leakage Current Low

IIL

TA = +25NC

1

FA

Note 2: 100% production tested at TA = +25NC. Specifications over temperature limits are guaranteed by design.

Note 3: Dynamic specifications are taken over 2.5V to 5.5V supply range. Inputs AC-coupled to PGND.

Note 4: The maximum differential input signal does not cause any excess distortion due to violation of the common-mode input

range.

Note 5: Test performed with a resistive load connected to PGND. Mode transitions are controlled by SHDN. KCP level is calcu-

lated as 20 x log (peak voltage during mode transition, no input signal).

Typical Operating Characteristics

(VPVDD = VSVDD = VSVDD2 = 5V, VPGND = VSGND = 0V, CBIAS = 0.1µF, C1 = C2 = 1µF, RIN = 10kω, RF = 10kω, unless otherwise noted.)

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

0

-10

VPVDD = 3.3V

RL = 600I

-20 BW = 22Hz TO 22kHz

-30

-40

-50

-60

-70

-80

VOUT = 1VRMS

-90

-100

-110

-120

0.01

0.1

VOUT = 2VRMS

1

10

100

FREQUENCY (kHz)

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

0

-10

VPVDD = 5V

RL = 10kI

-20 BW = 22Hz TO 22kHz

-30

-40

-50

-60

-70

-80

VOUT = 1VRMS

-90

-100

-110

-120

0.01

0.1

VOUT = 3VRMS

1

10

100

FREQUENCY (kHz)

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

100

VPVDD = 3.3V

10 RL = 32I

1

0.1

POUT = 30mW

0.01

0.001

0.0001

POUT = 10mW

0.01

0.1

1

10

100

FREQUENCY (kHz)

5

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