參數(shù)資料
型號: MAX9727
廠商: Maxim Integrated Products, Inc.
英文描述: Quad Audio Line Driver with 3VRMS Output
中文描述: 四通道音頻線驅(qū)動器,提供3VRMS輸出
文件頁數(shù): 1/1頁
文件大?。?/td> 46K
代理商: MAX9727
General Description
The MAX9727 quad audio line driver with 3V
RMS
output is
ideal for portable audio devices where board space and
cost is at a premium. The device uses Maxim’s
DirectDrive
TM
architecture that produces a ground-refer-
enced output from a single supply, eliminating the need
for large DC-blocking capacitors, saving cost, board
space, and component height. A high 100dB PSRR and
low 0.0005% THD+N ensures clean, low-distortion ampli-
fication of the audio signal. Each MAX9727 amplifier can
provide 3V
RMS
to a 1k
load with less than 0.003%
THD+N while operating from a single +5V supply. Each
MAX9727 amplifier can provide 2V
RMS
to a 1k
load with
less than 0.003% THD+N while operating from a single
+3.3V supply.
A shutdown input disables the amplifiers and reduces
quiescent current consumption to less than 100nA. The
MAX9727 features Maxim’s comprehensive click-and-
pop suppression circuitry that reduces audible clicks and
pops during startup and shutdown.
The MAX9727 operates from a single 2.7V to 5.5V sup-
ply, consumes only 3mA of supply current per channel
and is specified over the -40°C to +85°C extended tem-
perature range.
Features
2.7V to 5.5V Single-Supply Operation
High 100dB PSRR
109dB Signal-to-Noise Ratio (SNR)
Ground-Referenced Outputs
No Audible Clicks or Pops at Power-Up/Down
Differential Inputs
3V
RMS
into 1k
Load at 5V
2V
RMS
into 1k
Load at 3.3V
3mA Supply Current Per Channel
Unity-Gain Stable
100nA Low-Power Shutdown Mode
C
LOAD
Drive > 220pF
±8kV HBM ESD-Protected Outputs
Ordering Information
M
Quad Audio Line Driver with 3V
RMS
Output
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
MAX9727
OUTA
INA-
INA+
INB+
INB-
OUTB
OUTD
IND-
IND+
INC+
INC-
OUTC
PV
SS
PGND
C1N
SHDN
ON
OFF
PV
DD
C1P
PART
TEMP RANGE
PIN-
PACKAGE
GAIN
MAX9727EEP+
-40°C to +85°C
20 QSOP
Adjustable
Pin Configuration
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
OUTA
OUTD
IND-
IND+
V
SS
INC+
INC-
OUTC
PV
SS
TOP VIEW
MAX9727
QSOP
INA-
INA+
INB-
V
DD
INB+
OUTB
SHDN
12
11
9
10
C1N
PGND
PV
DD
C1P
Simplified Block Diagram
XX-XXXX; Rev 0; 10/05
Set-Top Boxes
Consumer and
Professional Audio
Equipment
A/V Receivers
CD and DVD Players
Soundcards
Portable Audio
Devices
Applications
+
Denotes lead-free package.
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MAX9727EEP+ 功能描述:音頻放大器 Quad Audio Line Drvr w/3VRMS Output 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
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