參數(shù)資料
型號: MAX9773ETG+
廠商: Maxim Integrated Products
文件頁數(shù): 17/21頁
文件大?。?/td> 0K
描述: IC AMP AUDIO PWR 1.8W D 24TQFN
標(biāo)準(zhǔn)包裝: 75
類型: D 類
輸出類型: 2 通道(立體聲)
在某負(fù)載時最大輸出功率 x 通道數(shù)量: 1.8W x 2 @ 4 歐姆
電源電壓: 2.6 V ~ 5.5 V
特點(diǎn): 消除爆音,差分輸入,短路和熱保護(hù),關(guān)閉
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 24-TQFN-EP(4x4)
封裝/外殼: 24-WFQFN 裸露焊盤
包裝: 管件
MAX9773
1.8W, Filterless, Ultra-Low EMI,
Stereo Class D Audio Power Amplifier
_______________________________________________________________________________________
5
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9773
toc10
OUTPUT POWER (W)
THD+N
(%)
1.6
1.2
0.8
0.4
0.01
0.1
1
10
100
0.001
02.0
VDD = 5V
RL = 8
fIN = 1kHz
FFM
SSM
EFFICIENCY vs. OUTPUT POWER
MAX9773
toc11
OUTPUT POWER (W)
EFFICIENCY
(%)
2.5
2.0
1.5
1.0
0.5
10
20
30
40
50
60
70
80
90
100
0
3.0
RL = 8
RL = 4
VDD = 5V
fIN = 1kHz
OUTPUT POWER PER CHANNEL
EFFICIENCY vs. OUTPUT POWER
MAX9773
toc12
OUTPUT POWER (W)
EFFICIENCY
(%)
1.0
0.8
0.6
0.4
0.2
10
20
30
40
50
60
70
80
90
100
0
01.2
RL = 8
RL = 4
VDD = 3.3V
fIN = 1kHz
OUTPUT POWER PER CHANNEL
OUTPUT POWER vs. SUPPLY VOLTAGE
MAX9773
toc13
SUPPLY VOLTAGE (V)
OUTPUT
POWER
(W)
5.0
4.5
4.0
3.5
3.0
0.5
1.0
1.5
2.0
2.5
3.0
0
2.5
5.5
RL = 4
fIN = 1kHz
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. SUPPLY VOLTAGE
MAX9773
toc14
SUPPLY VOLTAGE (V)
OUTPUT
POWER
(W)
5.0
4.5
4.0
3.5
3.0
0.5
1.0
1.5
2.0
0
2.5
5.5
RL = 8
fIN = 1kHz
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. LOAD RESISTANCE
MAX9773
toc15
LOAD RESISTANCE (
)
OUTPUT
POWER
(W)
10
0.5
1.0
1.5
2.0
2.5
3.0
0
1100
VDD = 5V, f = 1kHz,
ZLOAD = 33
H
IN SERIES WITH RL
THD+N = 10%
THD+N = 1%
Typical Operating Characteristics (continued)
(VDD = VPVDD = VSHDN = 3.3V, VGND = VPGND = 0V, SYNC = VDD (SSM), gain = 12dB (GAIN1 = 1, GAIN2 = 1)).
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