(VPVDD = 20V, VVS = 5V, VAGND = VPGND = 0V, VMOD = VSHDN = VMUTE = 5V, REGEN = MONO = AGND, C1 = 0.1μF, C2 = 1μF,

RIN_ = 20kΩ and RFB_= 20kΩ, RL = ∞, AC measurement bandwidth 22Hz to 22kHz, TA = TMIN to TMAX, unless otherwise noted.

Typical values are at TA = +25°C.) (Notes 4, 5)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

AMPLIFIER DC CHARACTERISTICS

Speaker Supply Voltage Range

PVDD

Inferred from PSRR test

8

28

V

Preamplifier Supply Voltage

Range

VS

(Notes 1 and 7)

4.5

5.5

V

Undervoltage Lockout

UVLO

7

V

Quiescent Supply Current

IPVDD

RL = ∞, VREGEN = 5V,

VVS = open

TA = +25°C

30

45

mA

TA = TMIN to TMAX

50

IVS

RL = ∞, VREGEN = 0V,

VVS = 5V

TA = +25°C

14

20

mA

TA = TMIN to TMAX

22

Shutdown Supply Current

ISHDN

VSHDN = 0V

IPVDD

1

10

µA

IVS

10

REG Voltage

VREG

4.2

V

Preregulator Voltage

VS

Internal regulated 5V, VREGEN = 5V

4.8

V

COM Voltage

VCOM

1.9

2.05

2.2

V

INPUT AMPLIFIER CHARACTERISTICS

Capacitive Drive

CL

30

pF

Output Swing (Note 6)

Sinking ±1mA

±2

V

Open-Loop Gain

AVO

VFB_ = VCOM ±500mV, RFB_= 20kΩ to IN_

88

dB

Input Offset Voltage

VOS

±1

mV

Input Amplifier Slew Rate

2.5

V/µs

Input Amplifier Unity-Gain

Bandwidth

3.5

MHz

AMPLIFIER CHARACTERISTICS

Output Amplifier Gain (Note 8)

AV

MAX9736A, MAX9736D

16.5

17

17.5

dB

MAX9736B

13.1

13.6

14.1

Output Current Limit

3.3

4.6

A

Output Offset

VOS

OUT_+ to OUT_-, TA = +25°C

±2

±10

mV

Power-Supply Rejection Ratio

PSRR

PVDD = 8V to 28V, TA = +25°C

65

80

dB

f = 1kHz, 100mVP-P ripple

67

MAX9736A Output Power

(THD+N = 1%)

POUT_1%

VPVDD = 12V

Stereo

RL = 8Ω

8

W

RL = 4Ω

13

Mono

RL = 4Ω

15.5

VPVDD = 18V

Stereo

RL = 8Ω

13.5

Mono

RL = 4Ω

27

VPVDD = 24V

Stereo

RL = 8Ω

13.5

Mono

RL = 4Ω

27

MAX9736

Mono/Stereo High-Power Class D Amplifier

www.maximintegrated.com

Maxim Integrated │ 3

Electrical Characteristics