MAX9706ETX+ Maxim Integrated Products, MAX9706ETX+ Datasheet - Page 22

• Manufacturer Part Number: MAX9706ETX+
• Description: IC AMP AUDIO 2.3W STER+1 36TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class Dr

Specifications of MAX9706ETX+

• 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-