with BassMax, Volume Control, and I2C
參數(shù)資料
型號: MAX9723AETE+
廠商: Maxim Integrated Products
文件頁數(shù): 24/25頁
文件大?。?/td> 0K
描述: IC AMP AUDIO .06W STER AB 16TQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 75
系列: DirectDrive®
類型: AB 類
輸出類型: 耳機,2-通道(立體聲)
在某負載時最大輸出功率 x 通道數(shù)量: 60mW x 2 @ 16 歐姆
電源電壓: 1.8 V ~ 3.6 V
特點: 低音增強模式,消除爆音,I²C,靜音,短路和熱保護,關機,音量控制
安裝類型: 表面貼裝
供應商設備封裝: 16-TQFN-EP(4x4)
封裝/外殼: 16-WQFN 裸露焊盤
包裝: 管件
MAX9723
Stereo DirectDrive Headphone Amplifier
with BassMax, Volume Control, and I2C
8
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VDD = SHDN = 3V, PGND = SGND = 0V, C1 = C2 = 1F, BB_ = 0V, gain = 0dB, maximum volume, BassMax disabled. Load con-
nected between OUT_ and SGND where specified. Outputs in phase, both channels loaded. TA = +25°C, unless otherwise noted.)
(See Functional Diagram/Typical Operating Circuit)
OUTPUT POWER vs. CHARGE-PUMP
CAPACITANCE AND LOAD RESISTANCE
MAX9723
toc22
LOAD RESISTANCE (
Ω)
OUTPUT
POWER
(mW)
40
30
20
40
45
50
55
60
65
70
75
35
10
50
C1 = C2 = 2.2
μF
C1 = C2 = 0.68
μF
C1 = C2 = 1
μF
VDD = 3V
fIN = 1kHz
THD+N = 1%
POWER-UP/POWER-DOWN
WAVEFORM
MAX9723 toc23
20ms/div
VDD
2V/div
VOUT
10mV/div
EXITING SHUTDOWN
MAX9723 toc24
40
μs/div
VOUT_
200mV/div
VSHDN
2V/div
ENTERING SHUTDOWN
MAX9723 toc25
20
μs/div
VOUT_
200mV/div
VSHDN
2V/div
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9723
toc26
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(mA)
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
2.5
3.0
3.5
4.0
4.5
2.0
1.8
3.6
NO LOAD
INPUTS GROUNDED
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
SHUTDOWN
CURRENT
A)
1
2
3
4
5
6
7
8
0
MAX9723
toc27
SUPPLY VOLTAGE (V)
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
3.6
NO LOAD
INPUTS GROUNDED
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