參數(shù)資料
型號(hào)： MAX9725CETC+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 15/17頁(yè)
文件大?。?/td> 0K
描述： IC AMP AUDIO .025W STER 12TQFN
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： 25mW x 2 @ 16 歐姆
電源電壓： 900 mV ~ 1.8 V
特點(diǎn)： 消除爆音，短路保護(hù)，關(guān)機(jī)
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 12-TQFN-EP（4x4）
封裝/外殼： 12-WQFN 裸露焊盤
包裝： 管件
MAX9725
1V, Low-Power, DirectDrive, Stereo Headphone
Amplifier with Shutdown
_______________________________________________________________________________________
7
PIN
BUMP
THIN
QFN
UCSP
NAME
FUNCTION
1
A1
C1N
Flying Capacitor Negative Terminal. Connect a 1F capacitor from C1P to C1N.
2A2
PVSS
Inverting Charge-Pump Output. Bypass with 1F from PVSS to PGND. PVSS must be connected to
VSS.
3
A3
INL
Left-Amplifier Inverting Input. Connect input resistor RIN from input capacitor C1N to INL (MAX9725E
only).
4
A4
INR
Right-Amplifier Inverting Input. Connect input resistor RIN from input capacitor C1N to INR
(MAX9725E only).
5B4
VSS
Amplifier Negative Power Supply. Must be connected to PVSS.
6
B3
SGND
Signal Ground. SGND must be connected to PGND. SGND is the ground reference for the input and
output signal.
7
C4
OUTR
Right-Channel Output. Connect feedback resistor RFB between OUTR and INR (MAX9725E only).
8
C3
OUTL
Left-Channel Output. Connect feedback resistor RFB between OUTL and INL (MAX9725E only).
9C2
VDD
Positive Power-Supply Input. Bypass with a 1F capacitor to PGND.
10
C1
C1P
Flying Capacitor Positive Terminal. Connect a 1F capacitor from C1P to C1N.
11
B1
PGND
Power Ground. Ground reference for the internal charge pump. PGND must be connected to SGND.
12
B2
SHDN
Active-Low Shutdown. Connect to VDD for normal operation. Pull low to disable the amplifier and
charge pump.
EP
—
EP
Exposed Paddle. Internally connected to VSS. Leave paddle unconnected or solder to VSS.
Pin Description
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX9725
toc22
SUPPLY VOLTAGE (V)
SHUTDOWN
CURRENT
(μ
A)
1.3
1.1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
0.9
1.5
EXITING SHUTDOWN
MAX9725 toc23
200
μs/div
OUT_
1V/div
SHDN
500mV/div
POWER-UP/-DOWN WAVEFORM
MAX9725toc24
200ms/div
OUT_
10mV/div
VDD
1V/div
Typical Operating Characteristics (continued)
(VDD = 1.5V, VPGND = VSGND = 0V, VSHDN = 1.5V, VSS = VPVSS, C1 = C2 = 1F, CIN = 1F, THD+N measurement bandwidth = 22Hz
to 22kHz, TA = +25
°C, unless otherwise noted.) (See the Functional Diagrams.)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9725CETC+ 功能描述:音頻放大器 1V DirectDrive Headphone Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9725CETC+T 功能描述:音頻放大器 1V DirectDrive Headphone Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9725CETC-T 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9725DEBC 制造商:Maxim Integrated Products 功能描述:1V LOW-POWER DIRECTDRIVE STEREO - Rail/Tube
MAX9725DEBC+ 制造商:Maxim Integrated Products 功能描述:AUD AMP HDPH 2CH STEREO 0.025W CLS-AB 12UCSP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:
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