参数资料
型号: MAX97003EWP+T
厂商: Maxim Integrated Products
文件页数: 11/48页
文件大小: 0K
描述: IC AUDIO SUBSYSTEM LN 20WLP
标准包装: 2,500
类型: D 类;H 类
输出类型: 1-通道(单声道)或 2-通道(立体声)
在某负载时最大输出功率 x 通道数量: 1W x 2 @ 8 欧姆
电源电压: 2.7 V ~ 5.5 V
特点: 消除爆音,差分输入,关闭
安装类型: *
供应商设备封装: *
封装/外壳: *
包装: *
Maxim Integrated Products 19
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
Typical Operating Characteristics (continued)
(VDD = 1.8V, VPVDD = 4.2V, VGND = VPGND = 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal
configured singled-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential.
Speaker loads (ZSPK) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and
SCL pullup voltage = 1.8V. ZSPK = J, RHP = J. CC1P-C1N = CCPVDD = CCPVSS = CBIAS = 1FF.)
INBAND OUTPUT SPECTRUM
MAX97003
toc34
FREQUENCY (Hz)
AMPLITUDE
(dBV)
16k 18k
14k
4k
2k
6k 8k 10k 12k
-160
-140
-120
-100
-80
-60
-40
-20
0
20k
fIN = 1kHz
RLOAD = 32I
20
40
60
80
100
120
0
MAX97003
toc33
PSRR
(dB)
10k
1k
100
10
100k
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
FREQUENCY (Hz)
VPVDD = 4.2V
VDD = 1.8V
VRIPPLE = 200mVP-P on VDD
INPUTS AC-COUPLED TO GND
RLOAD = 32I
MAX97003
toc32
OUTPUT
POWER
(mW)
1k
100
10
20
30
40
50
60
70
0
1
10k
OUTPUT POWER vs. LOAD RESISTANCE
AND CHARGE-PUMP CAPACITANCE
LOAD RESISTANCE (I)
fIN = 1kHz
THD+N = 1%
CCHARGE_PUMP = CC1N-C1P
CCPVDD = CCPVSS
CCHARGE_PUMP = 2.2F
CCHARGE_PUMP
= 0.47F
CCHARGE_PUMP
= 1F
MAX97003
toc31
OUTPUT
POWER
(mW)
1k
100
10
20
30
40
50
60
70
80
0
1
10k
OUTPUT POWER vs. LOAD RESISTANCE
LOAD RESISTANCE (I)
fIN = 1kHz
THD+N = 10%
THD+N = 1%
POWER DISSIPATION
vs. OUTPUT POWER
MAX97003
toc30
OUTPUT POWER (mW)
POWER
DISSIPATION
(mW)
10
20
30
40
50
60
70
80
90
100
0
160
120
100
80
40
60
20
0
140
fIN = 1kHz
POUT = PHPL + PHPR
RLOAD = 16I
RLOAD = 32I
MAX97003
toc29
OUTPUT POWER (W)
0.06
0.05
0.04
0.03
0.02
0.01
0
0.07
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
THD+N
RATIO
(%)
0.01
100
0.001
f = 6kHz
f = 1kHz
f = 100Hz
RHP = 16I
0.1
10
1
HEADPHONE AMPLIFIER
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