HM8418 datasheet(4/7 Pages) HMSEMI

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电性参数

(VDD =5V, Gain=20dB, RL =8Ω, T =25°C, unless otherwise noted.)

Symbol

Parameter

Test Conditions

MIN TYP MAX UNIT

VIN

电源电压

2.5

6.0

输出功率

THD+N=10%,f=1KHZ,RL=4Ω

VDD=5.0V

3.2

VDD=3.6V

1.6

THD+N=1%,f=1KHZ,RL=4Ω

VDD=5.0V

2.6

VDD=3.6V

1.3

THD+N=10%,f=1KHZ,RL=2Ω

VDD=5.0V

5.2

VDD=3.6V

2.6

THD+N=1%,f=1KHZ,RL=2Ω

VDD=5.0V

4.2

VDD=3.6V

2.2

THD+N

总谐波失真＋噪声

VDD=5.0V, PO=1W, RL=4Ω

f=1KHz

0.05

VDD=3.6V, PO=0.5W, RL=4Ω

0.05

VDD=5.0V, PO=2W, RL=2Ω

f=1KHz

0.06

VDD=3.6V, PO=1W, RL=2Ω

0.06

增益

Ri=22K

23.5

PSRR

电源纹波抑制比

VDD=5.0V ±200mVp-p

f=1KHz

SNR

信噪比

VDD=5.0V,Po = 3W, GV=24dB

f=1KHz

残余噪声

VDD=5.0V,Input floating with

CIN=0.1μF, Rin=150K

A-weighting

110

μV

No A-weighting

150

Dyn

动态范围

VDD=5.0V,THD+N=1%

f=1KHz

效率

RL=2Ω, Po=4.5W

f=1KHz

RL=4Ω, Po=2.5W

静态电流

VDD=5.0V

No Load

VDD=3.0V

ISD

关断电流

VDD=2.5V to 4.2V

VSD=3.3V

μA

Vos

失调电压

VIN=0V, VDD=5V

Fosc

工作频率

350

khz

Tst

启动时间

Bypass capacitor =1uF

100

OTP

－

No Load, Junction

Temperature

VDD=5.0V

200

°C

OTH

－

HM8418

6.5W 立体声 D 类音频功率放大器

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