參數(shù)資料
型號: MAX9770EUI+
廠商: Maxim Integrated Products
文件頁數(shù): 18/22頁
文件大?。?/td> 0K
描述: IC AMP AUDIO 1.2W MONO D 28TSSOP
標(biāo)準(zhǔn)包裝: 50
類型: D 類
輸出類型: 1-通道(單聲道),帶立體聲耳機(jī)
在某負(fù)載時最大輸出功率 x 通道數(shù)量: 1.2W x 1 @ 8 歐姆; 80mW x 2 @ 16 歐姆
電源電壓: 2.5 V ~ 5.5 V
特點: 消除爆音,輸入多路復(fù)用器,靜音,短路和熱保護(hù),關(guān)機(jī)
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 28-TSSOP
封裝/外殼: 28-TSSOP(0.173",4.40mm 寬)
包裝: 管件
MAX9770
1.2W, Low-EMI, Filterless, Mono Class D Amplifier
with Stereo DirectDrive Headphone Amplifiers
_______________________________________________________________________________________
5
Typical Operating Characteristics
(VDD = 3.3V, BW = 22Hz to 22kHz, GAIN1 = 1, GAIN2 = 0, spread-spectrum mode, headphone outputs in phase, unless otherwise
noted.)
10
0.001
10
100
10k
100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
0.01
0.1
1
MAX9770
toc01
FREQUENCY (Hz)
THD+N
(%)
1k
VDD = +5V
RL = 4
Ω
POUT = 25mW
POUT = 1000mW
10
0.001
10
100
10k
100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
0.01
0.1
1
MAX9770
toc02
FREQUENCY (Hz)
THD+N
(%)
1k
RL = 4
Ω
POUT = 100mW
POUT = 500mW
10
0.001
10
100
10k
100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
0.01
0.1
1
MAX9770
toc03
FREQUENCY (Hz)
THD+N
(%)
1k
RL = 8
Ω
POUT = 40mW
POUT = 400mW
10
0.001
10
100
10k
100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
0.01
0.1
1
MAX9770
toc04
FREQUENCY (Hz)
THD+N
(%)
1k
VDD = 5V
POUT = 1W
RL = 8
Ω
SSM MODE
FFM MODE
100
0
400
800
1200
1600
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9770
toc05
OUTPUT POWER (mW)
THD+N
(%)
VDD = 5V
RL = 8
Ω
f = 20Hz
f = 1kHz
f = 10kHz
100
0
200
600
400
800
1000
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9770
toc06
OUTPUT POWER (mW)
THD+N
(%)
f = 20Hz
f = 1kHz
f = 10kHz
RL = 4
Ω
100
0
200
400
600
800
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9770
toc07
OUTPUT POWER (mW)
THD+N
(%)
RL = 8
Ω
f = 20Hz
f = 1kHz
f = 10kHz
100
0
400
800
1200
1600
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9770
toc08
OUTPUT POWER (mW)
THD+N
(%)
VDD = 5V
f = 1kHz
RL = 8
Ω
SSM MODE
FFM MODE
1.75
0
1
10
100
OUTPUT POWER
vs. LOAD RESISTANCE (SPEAKER MODE)
0.50
0.25
MAX9770
toc09
LOAD RESISTANCE (
Ω)
OUTPUT
POWER
(W)
0.75
1.00
1.25
1.50
VDD = 5V
f = 1kHz
THD+N = 10%
THD+N = 1%
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