参数资料
型号: MAX9727EEP+T
厂商: Maxim Integrated Products
文件页数: 1/13页
文件大小: 0K
描述: IC AMP AUDIO QUAD AB DIFF 20QSOP
标准包装: 2,500
系列: DirectDrive®
类型: AB 类
输出类型: 4-通道(四路)
电源电压: 2.7 V ~ 5.5 V
特点: 消除爆音,差分输入,关闭,热保护
安装类型: 表面贴装
供应商设备封装: 20-QSOP
封装/外壳: 20-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
General Description
The MAX9727 quad audio line driver with 3VRMS output is
ideal for portable audio devices where board space and
cost is at a premium. The device uses Maxim’s
DirectDriveTM architecture that produces a ground-refer-
enced output from a single supply, eliminating the need
for large DC-blocking capacitors and 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 3VRMS to a 1k load with less than 0.003%
THD+N while operating from a single +5V supply. Each
MAX9727 amplifier can provide 2VRMS 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
o 2.7V to 5.5V Single-Supply Operation
o High 100dB PSRR
o 109dB Signal-to-Noise Ratio (SNR)
o Ground-Referenced Outputs
o No Audible Clicks or Pops at Power-Up/Down
o Differential Inputs
o 3VRMS into 1k Load at 5V
o 2VRMS into 1k Load at 3.3V
o 3mA Supply Current Per Channel
o Unity-Gain Stable
o 100nA Low-Power Shutdown Mode
o CLOAD Drive > 220pF
o ±8kV HBM ESD-Protected Outputs
MAX9727
Quad Audio Line Driver with 3VRMS Output
________________________________________________________________ Maxim Integrated Products
1
MAX9727
OUTA
INA-
INA+
INB+
INB-
OUTB
OUTD
IND-
IND+
INC+
INC-
OUTC
PVSS
PGND
C1N
SHDN
ON
OFF
PVDD
C1P
PART
TEMP RANGE
PIN-
PACKAGE
GAIN
MAX9727EEP+
-40°C to +85°C
20 QSOP
Adjustable
Pin Configuration
Ordering Information
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
OUTA
OUTD
IND-
IND+
VSS
INC+
INC-
OUTC
PVSS
TOP VIEW
MAX9727
QSOP
INA-
INA+
INB-
VDD
INB+
OUTB
SHDN
12
11
9
10
C1N
PGND
PVDD
C1P
+
Simplified Block Diagram
19-3860; Rev 0; 12/05
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.
E
EV
VA
AL
LU
UA
AT
TIIO
ON
N K
KIIT
T
A
AV
VA
AIIL
LA
AB
BL
LE
E
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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