參數(shù)資料
型號: MAX9787ETI+
廠商: Maxim Integrated Products
文件頁數(shù): 10/15頁
文件大?。?/td> 0K
描述: IC AMP AUDIO PWR 2.2W AB 28TQFN
標(biāo)準(zhǔn)包裝: 60
類型: AB 類
輸出類型: 2 通道(立體聲)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量: 2.2W x 2 @ 3 歐姆
電源電壓: 4.5 V ~ 5.5 V
特點(diǎn): 消除爆音,短路保護(hù)和熱保護(hù),關(guān)機(jī),音量控制
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 28-TQFN-EP(5x5)
封裝/外殼: 28-WFQFN 裸露焊盤
包裝: 管件
MAX9787
2.2W Stereo Audio Power Amplifier
with Analog Volume Control
4
_______________________________________________________________________________________
Typical Operating Characteristics
(Measurement BW = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
10
1
0.1
0.01
0.001
0.0001
10
1k
10k
100
100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9787
toc01
FREQUENCY (Hz)
THD+N
(%)
VCC = 5V
RL = 3
AV = 10.5dB
OUTPUT POWER = 1.5W
OUTPUT POWER = 500mW
10
1
0.1
0.01
0.001
0.0001
10
1k
10k
100
100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9787
toc02
FREQUENCY (Hz)
THD+N
(%)
VCC = 5V
RL = 4
AV = 10.5dB
OUTPUT POWER = 1.25W
OUTPUT POWER = 500mW
10
1
0.1
0.01
0.001
0.0001
10
1k
10k
100
100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9787
toc03
FREQUENCY (Hz)
THD+N
(%)
VCC = 5V
RL = 8
AV = 10.5dB
OUTPUT POWER = 100mW
OUTPUT POWER = 600mW
100
0
0.5
1.0
1.5
2.0
2.5
3.0
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9787
toc04
OUTPUT POWER (W)
THD+N
(%)
VCC = 5V
RL = 3
AV = 10.5dB
fIN = 10kHz
fIN = 1kHz
fIN = 20Hz
100
0
0.5
1.0
1.5
2.0
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9787
toc05
OUTPUT POWER (W)
THD+N
(%)
fIN = 1kHz
fIN = 20Hz
VCC = 5V
RL = 4
AV = 10.5dB
fIN = 10kHz
100
0
0.2
0.4
0.6
0.8
1.0
1.2
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9787
toc06
OUTPUT POWER (W)
THD+N
(%)
fIN = 20Hz
fIN = 1kHz
fIN = 10kHz
VCC = 5V
RL = 8
AV = 10.5dB
OUTPUT POWER
vs. LOAD RESISTANCE
MAX9787
toc07
LOAD RESISTANCE ()
OUTPUT
POWER
(W)
3.0
0
0.5
1.0
1.5
2.0
2.5
1
10
100
THD+N = 10%
THD+N = 1%
VCC = 5V
f = 1kHz
AV = 10.5dB
POWER DISSIPATION vs. OUTPUT POWER
MAX9787
toc08
OUTPUT POWER (W)
POWER
DISSIPATION
(W)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
1
2
3
4
5
0
4.0
RL = 4
RL = 8
VDD = 5V
f = 1kHz
POUT = POUTL + POUTR
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