参数资料
型号: MAX9728BEUD+
厂商: Maxim Integrated Products
文件页数: 15/19页
文件大小: 0K
描述: IC AMP AUDIO .06W STER 14TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 96
系列: DirectDrive®
类型: AB 类
输出类型: 耳机,2-通道(立体声)
在某负载时最大输出功率 x 通道数量: 60mW x 2 @ 32 欧姆
电源电压: 4.5 V ~ 5.5 V
特点: 消除爆音,短路保护和热保护,关闭
安装类型: 表面贴装
供应商设备封装: 14-TSSOP
封装/外壳: 14-TSSOP(0.173",4.40mm 宽)
包装: 管件
MAX9728A/MAX9728B
0
-120
10
100
10k
100k
POWER-SUPPLY REJECTION
RATIO vs. FREQUENCY
-100
-80
-40
-60
-20
MAX9728A/28B
toc08
FREQUENCY (Hz)
PSRR
(dB)
1k
RL = 32
Ω
VDD = 5V
0
-120
10
100
10k
100k
CROSSTALK vs. FREQUENCY
-100
-80
-40
-60
-20
MAX9728A/28B
toc09
FREQUENCY (Hz)
CROSSTALK
(dB)
1k
RIGHT TO LEFT
LEFT TO RIGHT
POUT = 15mW
RL = 16
Ω
60mW, DirectDrive, Stereo Headphone
Amplifiers with Shutdown
_______________________________________________________________________________________
5
20
40
30
60
50
70
80
0
200
300
100
50
150
250
OUTPUT POWER vs. LOAD RESISTANCE
AND CHARGE-PUMP CAPACITOR SIZE
MAX9728A/28B
toc10
LOAD RESISTANCE (
Ω)
OUTPUT
POWER
(mW)
C1 = C2 = 2.2
μF
C1 = C2 = 1
μF
C1 = C2 = 0.47
μF
VDD = 5V
fIN = 1kHz
THD+N = 1%
3.20
3.25
3.40
3.30
3.45
3.35
3.50
4.5
5.0
5.5
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9728A/28B
toc11
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(mA)
NO LOAD INPUTS GROUND
0
3
1
7
5
9
2
6
4
8
10
4.5
5.0
5.5
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX9728A/28B
toc12
SUPPLY VOLTAGE (V)
SHUTDOWN
CURRENT
(nA)
NO LOAD INPUTS GROUND
100
0
10
100
1000
OUTPUT POWER
vs. LOAD RESISTANCE
10
MAX9728A/28B
toc07
LOAD RESISTANCE (
Ω)
OUTPUT
POWER
(mW)
30
20
50
70
90
40
60
80
VDD = 5V
fIN = 1kHz
THD+N = 10%
THD+N = 1%
Typical Operating Characteristics (continued)
(VDD = 5V, PGND = SGND = 0V, SHDN = VDD, C1 = C2 = 1F, RL =
∞, gain = -1.5V/V (RIN = 20kΩ, RF = 30kΩ for the MAX9728A),
THD+N measurement bandwidth = 22Hz to 22kHz, both outputs driven in phase, TA = +25°C, unless otherwise noted.)
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