MAX9736(2008) 查看數據表（PDF） - Maxim Integrated

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MAX9736
(Rev.:2008)

Mono/Stereo High-Power Class D Amplifier

Maxim Integrated 

Mono/Stereo High-Power Class D Amplifier

ELECTRICAL CHARACTERISTICS (continued)

(VPVDD = 20V, VVS = 5V, AGND = PGND = 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

Total Harmonic Distortion Plus

Noise

Signal-to-Noise Ratio

Noise

Crosstalk

Efficiency

Click-and-Pop Level

Switching Frequency

Spread-Spectrum Bandwidth

Thermal Shutdown Level

Thermal Shutdown Hysteresis

Turn-On Time

DIGITAL INTERFACE

Input Voltage High

Input Voltage Low

Input Voltage Hysteresis

Input Leakage Current

THD+N

MAX9736A, POUT = 4W, f = 1kHz,

PWM modulation mode, RL = 8Ω

MAX9736B, POUT = 2W, f = 1kHz,

PWM modulation mode, RL = 8Ω

SNR A-weighted

MAX9736A, POUT = 8W,

RL = 8Ω

MAX9736B, POUT = 6W,

RL = 8Ω

VN

A-weighted

(Note 9)

MAX9736A

MAX9736B

L to R, R to L, POUT = 1W, f = 1kHz, RL = 8Ω

η

POUT = 8W, MAX9736A, PVDD = 12V, RL = 8Ω

Peak voltage, 32 Into mute

KCP

samples/second,

A-weighted

(Notes 9 and 10) Out of mute

270

tON

VINH

2

VINL

0.04

0.04

96.5

97

120

100

100

88

36

36

300

±4

160

30

110

50

%

dB

µVRMS

dB

%

dBV

330

kHz

kHz

°C

°C

ms

V

0.8

V

mV

±10

µA

Note 4:

Note 5:

Note 6:

Note 7:

Note 8:

All devices are 100% production tested at +25°C. All temperature limits are guaranteed by design.

Stereo mode (MONO = GND) specified with 8Ω resistive load in series with a 68µH inductive load connected across BTL

outputs. Mono mode (MONO = 5V) specified with a 4Ω resistive load in series with a 33µH inductive load connected

across BTL outputs.

Output swing is specified with respect to VCOM.

For typical applications, an external 5V supply is not required. Therefore, set REGEN = 5V. If thermal performance is a

concern, set REGEN = 0V and provide an external regulated 5V supply.

Output amplifier gain is defined as:

20

×

⎛

log⎝⎜

|

(VOUT_+ ) − (VOUT

| VFB _ |

_

−

)

|

⎞

⎠⎟

Note 9: Amplifier inputs AC-coupled to GND.

Note 10: Specified at room temperature with an 8Ω resistive load in series with a 68µH inductive load connected across BTL outputs.

Mode transitions controlled by SHDN control pin.

4 _______________________________________________________________________________________

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