參數資料
型號: MAX9777ETI+
廠商: Maxim Integrated Products
文件頁數: 27/27頁
文件大?。?/td> 0K
描述: IC AMP AUDIO PWR 2.6W AB 28TQFN
標準包裝: 60
類型: AB 類
輸出類型: 2-通道(立體聲)帶立體聲耳機
在某負載時最大輸出功率 x 通道數量: 2.6W x 2 @ 4 歐姆; 200mW x 2 @ 16 歐姆
電源電壓: 4.5 V ~ 5.5 V
特點: 消除爆音,I²C,輸入多路復用器,靜音,關機,熱保護
安裝類型: 表面貼裝
供應商設備封裝: 28-TQFN-EP(5x5)
封裝/外殼: 28-WFQFN 裸露焊盤
包裝: 管件
MAX9777/MAX9778
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
_______________________________________________________________________________________
9
EXITING SHUTDOWN (HEADPHONE MODE)
MAX9777/78 toc37
100ms/div
OUT_+
1V/div
HP JACK
200mV/div
SHDN
2V/div
RL = 16
INPUT AC-COUPLED TO GND
ENTERING SHUTDOWN (HEADPHONE MODE)
MAX9777/78 toc38
100ms/div
OUT_+
1V/div
HP JACK
100mV/div
SHDN
2V/div
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(SPEAKER MODE)
MAX9777/78
toc39
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(mA)
5.25
5.00
4.75
5
10
15
20
25
0
4.50
5.50
TA = +85
°C
TA = +25
°C
TA = -40
°C
Typical Operating Characteristics (continued)
(VDD = PVDD = 5V, GND = PGND = 0V, VSHDN = 5V, CBIAS = 1F, TA = +25°C, unless otherwise noted.)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (HEADPHONE MODE)
MAX9777/78
toc35
FREQUENCY (Hz)
PSRR
(dB)
10k
1k
100
90
80
70
60
50
40
100
10
100k
VRIPPLE = 200mVP-P
CROSSTALK vs. FREQUENCY
(HEADPHONE MODE)
MAX9777/78
toc36
FREQUENCY (Hz)
CROSSTALK
(dB)
10k
1k
100
-110
-100
-90
-80
-70
-60
-50
-40
-120
10
100k
VIN = 200mVP-P
RL = 16
RIGHT TO LEFT
LEFT TO RIGHT
POWER DISSIPATION vs. OUTPUT POWER
(HEADPHONE MODE)
MAX9777/78
toc33
OUTPUT POWER (mW)
POWER
DISSIPATION
(mW)
50
100
150
200
20
40
60
80
100
120
0
RL = 16
f = 1kHz
POWER DISSIPATION vs. OUTPUT POWER
(HEADPHONE MODE)
MAX9777/78
toc34
OUTPUT POWER (mW)
POWER
DISSIPATION
(mW)
100
20
40
60
80
10
20
30
40
50
60
70
0
RL = 32
f = 1kHz
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參數描述
MAX9777ETI+ 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9777ETI+T 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9778ETI+ 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9778ETI+T 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9779ETI+ 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel