MAX9787 Maxim Integrated Products, MAX9787 Datasheet
MAX9787
Manufacturer Part Number
MAX9787
Description
2.2W Stereo Audio Power Amplifier
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX9787.pdf
(15 pages)
www.DataSheet4U.com
The MAX9787 combines a stereo, 2.2W audio power
amplifier with an analog volume control in a single device.
A high 90dB PSRR and low 0.01% THD+N ensures clean,
low-distortion amplification of the audio signal.
The analog volume control can be driven with a poten-
tiometer, an RC-filtered PWM source, or a DAC output.
A BEEP input allows the addition of alert signals from
the controller to the audio path.
Industry-leading, click-and-pop suppression eliminates
audible transients during power and shutdown cycles.
Other features include single-supply voltage, a shut-
down mode, logic-selectable gain, thermal-overload,
and output short-circuit protection.
The MAX9787 is offered in a space-saving, thermally
efficient, 28-pin, thin QFN (5mm x 5mm x 0.8mm) pack-
age, and is specified over the extended -40°C to +85°C
temperature range.
19-3882; Rev 0; 10/05
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.
Notebook PCs
Flat-Panel TVs
Tablet PCs
PC Displays
Typical Operating Circuit
VOLUME
BEEP
Σ
Σ
________________________________________________________________ Maxim Integrated Products
General Description
+5V
Portable DVD Players
LCD Projectors
Multimedia Monitors
2.2W Stereo Audio Power Amplifier
MAX9787
Applications
with Analog Volume Control
♦ Class AB, 2.2W, Stereo BTL Speaker Amplifiers
♦ Analog Volume Control
♦ BEEP Input with Glitch Filter
♦ 5V Single-Supply Operation
♦ High 90dB PSRR
♦ Low-Power Shutdown Mode
♦ Industry-Leading Click-and-Pop Suppression
♦ Low 0.01% THD+N at 1kHz
♦ Short-Circuit and Thermal Protection
♦ Selectable-Gain Settings
♦ Space-Saving 28-Pin TQFN (5mm x 5mm x 0.8mm)
Note: This device is specified for -40°C to +85°C operation.
+Denotes lead-free package.
*EP = Exposed paddle.
MAX9787ETI+
TOP VIEW
*EXPOSED PAD.
GAIN2
GAIN1
SHDN
PART
GND
V
VOL
INR
DD
22
23
24
25
26
27
28
+
*EP
21
1
20
2
PIN-PACKAGE
28 TQFN-EP*
Ordering Information
THIN QFN
19
MAX9787
3
18
Pin Configuration
4
17
5
16
6
15
7
Features
PKG CODE
14
13
12
11
10
9
8
T2855N-1
N.C.
N.C.
V
CPV
C1N
CPGND
C1P
SS
SS
1
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