with BassMax, Volume Control, and I2C
參數(shù)資料
型號(hào): MAX9723DETE+
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 23/25頁(yè)
文件大?。?/td> 0K
描述: IC AMP AUDIO .06W STER AB 16TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 75
系列: DirectDrive®
類型: AB 類
輸出類型: 耳機(jī),2-通道(立體聲)
在某負(fù)載時(shí)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(diǎn): 低音增強(qiáng)模式,消除爆音,I²C,靜音,短路和熱保護(hù),關(guān)機(jī),音量控制
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 16-TQFN-EP(4x4)
封裝/外殼: 16-WQFN 裸露焊盤
包裝: 管件
產(chǎn)品目錄頁(yè)面: 1392 (CN2011-ZH PDF)
配用: MAX9723DEVKIT+-ND - EVALUATION KIT FOR MAX9723
MAX9723
Stereo DirectDrive Headphone Amplifier
with BassMax, Volume Control, and I2C
_______________________________________________________________________________________
7
CROSSTALK
vs. FREQUENCY
-100
-80
-60
-40
-20
0
-120
MAX9723
toc16
FREQUENCY (Hz)
CROSSTALK
(dB)
10k
1k
100
10
100k
VIN = 1VP-P
RL = 32
Ω
A = 0dB
LEFT TO RIGHT
A = 0dB
RIGHT TO LEFT
A = 0dB
CROSSTALK
vs. FREQUENCY
-100
-80
-60
-40
-20
0
-120
MAX9723
toc17
FREQUENCY (Hz)
CROSSTALK
(dB)
10k
1k
100
10
100k
VIN = 1VP-P
RL = 32
Ω
A = -10dB
LEFT TO RIGHT
A = -10dB
RIGHT TO LEFT
A = -10dB
BASS BOOST FREQUENCY
RESPONSE
-5
0
5
10
15
20
-10
MAX9723
toc18
FREQUENCY (Hz)
AMPLITUDE
(dB)
10k
1k
100
10
100k
NO LOAD
R1 = 47k
Ω
BassMax DISABLED
R2 = 36k
Ω
C3 = 0.068
μF
R2 = 22k
Ω
C3 = 0.1
μF
R2 = 10k
Ω
C3 = 0.22
μF
GAIN FLATNESS
vs. FREQUENCY
-6
-5
-4
-3
-2
-1
0
1
-7
MAX9723
toc19
FREQUENCY (Hz)
AMPLITUDE
(dB)
10k
1k
100
10
100k
OUTPUT SPECTRUM
vs. FREQUENCY
MAX9723
toc20
FREQUENCY (kHz)
AMPLITUDE
(dBV)
15
10
5
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-140
020
RL = 32
Ω
VDD = 3V
fIN = 1kHz
CHARGE-PUMP OUTPUT VOLTAGE
vs. OUTPUT CURRENT
MAX9723
toc21
OUTPUT CURRENT (mA)
OUTPUT
VOLTAGE
(V)
175
150
125
100
75
50
25
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
-3.5
0200
NO HEADPHONE LOAD
CHARGE-PUMP LOAD
CONNECTED
BETWEEN PVSS AND PGND
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)
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