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參數資料
| 型號： | MAX9725DETC+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 15/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO .025W STER 12TQFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 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 通道數量： | 25mW x 2 @ 16 歐姆 |
| 電源電壓： | 900 mV ~ 1.8 V |
| 特點： | 消除爆音，短路保護，關機 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 12-TQFN-EP（4x4） |
| 封裝/外殼： | 12-WQFN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
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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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9725EC/W WAF | 制造商:Maxim Integrated Products 功能描述: |
| MAX9725EEBC+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9725EEBC+T | 制造商:Maxim Integrated Products 功能描述:1V LOW-POWER DIRECTDRIVE STEREO - Tape and Reel |
| MAX9725EEBC+TG45 | 功能描述:音頻放大器 1V DirectDrive Headphone Amplifier RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9725EEVKIT+ | 功能描述:放大器 IC 開發(fā)工具 MAX9725A/B/C/D/E Eval Kit RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
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