Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF HTML

MAX97000 Datasheet(PDF) 18 Page - Maxim Integrated Products

Part No. MAX97000
Description  Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier
Download  33 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
Logo 

MAX97000 Datasheet(HTML) 18 Page - Maxim Integrated Products

Zoom Inzoom in Zoom Outzoom out
 18 / 33 page
background image
Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
18
Pin Description (continued)
Detailed Description
The MAX97000 audio subsystem combines a mono
speaker amplifier with a stereo headphone amplifier
and an analog DPST switch. The high-efficiency 725mW
Class D speaker amplifier operates directly from the bat-
tery and consumes no more than 1FA when in shutdown
mode. The headphone amplifier utilizes a dual-mode
charge pump and a Class H output stage to maximize
efficiency while outputting a ground-referenced signal
that does not require output coupling capacitors. The
headphone and speaker amplifiers have independent
volume control and on/off control. The four inputs are
configurable as two differential inputs or four single-
ended inputs. All control is performed using the 2-wire,
I2C interface.
The speaker amplifier incorporates a distortion limiter to
automatically reduce the volume level when excessive
clipping occurs. This allows high gain for low-level sig-
nals without compromising the quality of large signals.
Internal Linear Regulator
The MAX97000 includes an internal regulator (LDOIN) to
generate VDD. The regulator allows single-supply opera-
tion directly from a Li+ battery.
Signal Path
The MAX97000 signal path consists of flexible inputs,
signal mixing, volume control, and output amplifiers
(Figure 2). The inputs can be configured for single-
ended or differential signals (Figure 3). The internal
preamplifiers feature programmable gain settings using
internal resistors and an external gain setting using a
trimmed internal feedback resistor. The external option
allows any desired gain to be selected. Following pream-
plification, the input signals are mixed, volume adjusted,
and routed to the headphone and speaker amplifiers
based on the desired configuration.
Figure 2. Signal Path
-64dB TO +6dB
MIXER
AND
MUX
INA2
INA1
INB2
INB1
0/3dB
-64dB TO +6dB
0/3dB
-30dB TO +20dB
+12dB
INPUT A
-6dB TO +18dB
INPUT B
-6dB TO +18dB
BUMP
NAME
FUNCTION
D1
OUTN
Negative Speaker Output
D2
COM1
Analog Switch 1 Input
D3
COM2
Analog Switch 2 Input
D4
INB1
Input B1. Left or negative input.
D5
INB2
Input B2. Right or positive input.
E1
OUTP
Positive Speaker Output
E2
NC1
Analog Switch 1 Output
E3
NC2
Analog Switch 2 Output
E4
INA1
Input A1. Left or negative input.
E5
INA2
Input A2. Right or positive input.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn