HM8878 datasheet(4/9 Pages) HMSEMI

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D Mode Electrical Characteristics

(VDD =5V, Gain=23.5dB, RL =4Ω, T =25°C, unless otherwise noted.)

Symbol

Parameter

Test Conditions

MIN TYP MAX UNIT

VIN

Supply Voltage

2.5

6.0

Output Power

THD+N=10%,f=1KHZ,RL=4 Ω

VDD=5.0V

3.3

VDD=3.6V

1.7

THD+N=1%,f=1KHZ,RL=4 Ω

VDD=5.0V

2.8

VDD=3.6V

1.5

THD+N=10%,f=1KHZ,RL=2 Ω

VDD=5.0V

5.6

VDD=3.6V

2.9

THD+N=1%,f=1KHZ,RL=2 Ω

VDD=5.0V

4.6

VDD=3.6V

2.4

THD+N

Total Harmonic Distortion

Plus Noise

VDD=5.0V, PO=1W, RL=4 Ω

f=1KHz

0.04

VDD=3.6V, PO=1W, RL=4 Ω

0.03

VDD=5.0V, PO=2W, RL=2 Ω

f=1KHz

0.06

VDD=3.6V, PO=2W, RL=2 Ω

0.05

Gain

Ri = 22K

23.5

PSRR

Power Supply Ripple

Rejection

VDD=4.2V ±200mVp-p

f=1KHz

SNR

Signal-to-Noise Ratio

VDD=5.0V, Vo rms=3.2V,

GV=23.5dB

f=1KHz

-86

Output Noise

VDD=5.0V,Input floating with

CIN=0.1μF

A-weighting

160

μV

No A-weighting

210

Dyn

Dynamic Range

VDD=5.0V,THD=1%

f=1KHz

-84

Efficiency

RL=2 Ω, Po=4W

f=1KHz

RL=4 Ω, Po=2.8W

Quiescent Current

VDD=5.0V

No Load

VDD=3.0V

3.5

ISD

Shutdown Current

VDD=2.5V to 5.5V

VSD=0.3V

μA

Vos

Offset Voltage

VIN=0V, VDD=5V

Fosc

Oscillator Frequency

300

khz

Tst

Setup Time

Bypass capacitor =1uF

200

OTP

－

No Load, Junction Temperature

VDD=5.0V

180

°C

OTH

－

HM8878

.5W 单通道 F 类音频功率放大器

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