參數(shù)資料
型號: MAX9766ETJ+T
廠商: Maxim Integrated Products
文件頁數(shù): 32/33頁
文件大?。?/td> 0K
描述: IC AMP AUDIO .75W MONO AB 32TQFN
標準包裝: 2,500
類型: AB 類
輸出類型: 1-通道(單聲道),帶立體聲耳機
在某負載時最大輸出功率 x 通道數(shù)量: 750mW x 1 @ 4 歐姆; 65mW x 2 @ 16 歐姆
電源電壓: 2.7 V ~ 5.5 V
特點: 消除爆音,I²C,輸入多路復(fù)用器,麥克風(fēng),靜音,短路和熱保護,關(guān)機
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 32-TQFN-EP(5x5)
封裝/外殼: 32-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
MAX9765/MAX9766/MAX9767
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
8
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VDD = PVDD = 5V, BW = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
MAX9765
toc19
OUTPUT POWER (W)
POWER
DISSIPATION
(W)
0.75
0.50
0.25
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
1.00
VDD = 5V
RL = 4
f = 1kHz
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
MAX9765
toc20
OUTPUT POWER (W)
POWER
DISSIPATION
(W)
0.60
0.45
0.30
0.15
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0
0.75
VDD = 5V
RL = 8
f = 1kHz
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
MAX9765
toc21
OUTPUT POWER (W)
POWER
DISSIPATION
(W)
0.75
0.50
0.25
0.1
0.2
0.3
0.4
0.5
0.6
0
1.00
VDD = 3V
RL = 4
f = 1kHz
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
MAX9765
toc22
OUTPUT POWER (W)
POWER
DISSIPATION
(W)
0.45
0.30
0.15
0.05
0.10
0.15
0.20
0.25
0.30
0
0.60
VDD = 3V
RL = 8
f = 1kHz
OUTPUT POWER vs. TEMPERATURE
(SPEAKER MODE)
MAX9765
toc23
TEMPERATURE (°C)
OUTPUT
POWER
(mW)
35
60
10
-15
200
400
600
800
1000
1200
0
-40
85
THD+N = 10%
THD+N = 1%
f = 1kHz
RL = 4
OUTPUT POWER vs. TEMPERATURE
(SPEAKER MODE)
MAX9765
toc24
TEMPERATURE (°C)
OUTPUT
POWER
(mW)
35
60
10
-15
100
200
300
400
500
800
700
600
0
-40
85
THD+N = 10%
THD+N = 1%
f = 1kHz
RL = 8
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (SPEAKER MODE)
MAX9765
toc25
FREQUENCY (Hz)
PSRR
(dB)
10k
1k
100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10
100k
VDD = 5V
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (SPEAKER MODE)
MAX9765
toc26
FREQUENCY (Hz)
PSRR
(dB)
10k
1k
100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10
100k
VDD = 3V
ENTERING SHUTDOWN (SPEAKER MODE)
MAX9765 toc27
200ms/div
OUT_+ AND
OUT_-
OUT_+ -
OUT_-
100mV/div
500mV/div
2V/div
SHDN
RL = 8
INPUT AC-COUPLED TO GND
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