參數(shù)資料
型號: MAX9754ETI+T
廠商: Maxim Integrated Products
文件頁數(shù): 29/29頁
文件大小: 0K
描述: IC AMP AUDIO PWR 2.2W D 28TQFN
標準包裝: 2,500
系列: DirectDrive®
類型: D 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(shù)量: 2.2W x 2 @ 4 歐姆; 62mW x 2 @ 16 歐姆
電源電壓: 4.5 V ~ 5.5 V
特點: 消除爆音,短路保護和熱保護,關閉
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: 帶卷 (TR)
MAX9752/MAX9753/MAX9754
2.2W, Low-EMI, Stereo, Class D Power Amplifiers
with DirectDrive Headphone Amplifiers
_______________________________________________________________________________________
9
POWER DISSIPATION vs. OUTPUT POWER
(HEADPHONE MODE)
MAX9752/53/54
toc25
OUTPUT POWER (mW)
POWER
DISSIPATION
(mW)
225
200
150 175
50 75 100 125
25
50
75
100
125
150
175
200
225
250
0
0250
VDD = 5V
f = 1kHz
POUT = POUTL + POUTR
RL = 16
Ω
RL = 32
Ω
OUTPUT POWER vs. SUPPLY VOLTAGE
(HEADPHONE MODE)
MAX9752/53/54
toc26
SUPPLY VOLTAGE (V)
OUTPUT
POWER
(mW)
5.0
4.5
4.0
3.5
25
50
75
100
125
0
3.0
5.5
RL = 16
Ω
RL = 32
Ω
f = 1kHz
10
1k
10k
100
100k
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (HEADPHONE MODE)
MAX9752/53/54
toc27
FREQUENCY (Hz)
PSRR
(dB)
VRIPPLE = 200mVP-P
AV = 10.5dB
OUTPUT REFERRED
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10
100
1k
10k
100k
CROSSTALK vs. FREQUENCY
(HEADPHONE MODE)
MAX9752/53/54
toc28
FREQUENCY (Hz)
CROSSTALK
(dB)
VCC = 5V
VRIPPLE = 200mVP-P
RL = 32
Ω
LEFT TO RIGHT
RIGHT TO LEFT
-100
-80
-60
-40
-20
0
-120
OUTPUT POWER vs. CHARGE-PUMP
CAPACITANCE AND LOAD RESISTANCE
MAX9752/53/54
toc29
LOAD RESISTANCE (
Ω)
OUTPUT
POWER
(mW)
40
30
20
40
60
80
100
120
140
160
180
200
0
10
50
VDD = 5V
f = 1kHz
THD+N = 1%
C1 = C2 = 2.2
μF
C1 = C2 = 1
μF
Typical Operating Characteristics (continued)
(VDD = PVDD = HPVDD = CPVDD = 5.0V, GND = PGND = HPGND = 0V, VSHDN = VDD, CPVSS = VSS, CBIAS = 1F,
CCPVSS = 1F, C1 = 1F, speaker impedance = 8
Ω connected between OUT_+ and OUT_-, headphone load is terminated to GND;
MAX9752: GAIN1 = GAIN2 = 0, VVOL = 0V; MAX9753: GAIN = 0, VA/B = 0V; MAX9754: GAIN = 0; TA = +25°C, unless otherwise noted.)
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