MAX9706ETX+T Maxim Integrated Products, MAX9706ETX+T Datasheet - Page 22
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MAX9706ETX+T
Manufacturer Part Number
MAX9706ETX+T
Description
IC AMP AUDIO 2.3W STER+1 36TQFN
Manufacturer
Maxim Integrated Products
Series
DirectDrive™r
Type
Class Dr
Datasheet
1.MAX9707ETX.pdf
(25 pages)
Specifications of MAX9706ETX+T
Output Type
2-Channel (Stereo) with Stereo Headphones and Subwoofer
Max Output Power X Channels @ Load
2.3W x 3 @ 4 Ohm; 95mW x 2 @ 16 Ohm
Voltage - Supply
4.5 V ~ 5.5 V
Features
Depop, Short-Circuit and Thermal Protection, Shutdown
Mounting Type
Surface Mount
Package / Case
36-TQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3-Channel, 2.3W, Filterless Class D Amplifiers
with Active Crossover
22
______________________________________________________________________________________
1µF
*BULK CAPACITANCE IF NEEDED
TYPICAL OPERATING CIRCUIT SHOWN DEPICTS THE MAX9706 WITH:
SSM MODE WITH f
HEADPHONE SPEAKER GAIN = +0dB, AND CROSSOVER FREQUENCY = 1066.7Hz.
V
DD
0.1µF
0.47µF
0.47µF
OSC
C
C
IN
IN
= 1150kHz, SPEAKER GAIN = +9dB, MONO SPEAKER GAIN OFFSET = -6.0dB,
C
BIAS
1µF
1µF
C1
SYNC_IN
CPGND
MGAIN
HPV
CPV
GAIN1
GAIN2
SHDN
C1P
C1N
FS1
FS0
INL
INR
DD
DD
Functional Diagram/Typical Operating Circuits
14
36
28
27
24
26
25
30
29
19
9
10
12
11
GENERATOR
LOWPASS/
LOWPASS/
HIGHPASS
HIGHPASS
CONTROL
CHARGE
FILTER
FILTER
PUMP
BIAS
BIAS
1
1µF
AND SAWTOOTH
OSCILLATOR
1µF
4.5V TO 5.5V
C2
13
CPV
SS
10µF*
V
3
DD
16
V
SS
HPV
2
GND
8, 20, 34
PV
DD
INR
INL
DD
1µF
AND H-BRIDGE
AND H-BRIDGE
AND H-BRIDGE
MAX9706
MODULATOR
MODULATOR
MODULATOR
CLASS D
CLASS D
CLASS D
5, 23, 31
PGND
33 OUTM+
32 OUTM-
21 OUTR+
22 OUTR-
15 HPS
18 HPL
17 HPR
35 MONO_OUT
4 SYNC_OUT
7 OUTL+
6 OUTL-