MAX9708ETN+TD Maxim Integrated Products, MAX9708ETN+TD Datasheet - Page 10

• Manufacturer Part Number: MAX9708ETN+TD
• Description: IC AMP AUDIO PWR 42W STER 56TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class Dr

Specifications of MAX9708ETN+TD

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 42W x 1 @ 4 Ohm; 21W x 2 @ 8 Ohm
• Voltage - Supply: 10 V ~ 18 V
• Features: Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 56-TQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

20W/40W, Filterless, Spread-Spectrum,
Mono/Stereo, Class D Amplifier
Figure 1. Typical Application and Functional Diagram in Stereo Mode
10
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CHANNEL
CHANNEL
RIGHT
V
LEFT
DIGITAL
+
+
-
-
CONFIGURATION: TQFN STEREO MODE, SSM, INTERNAL OSCILLATOR, GAIN = 22dB, THERMAL SETTING = +120°C
( ) TQFP PACKAGE
*ADDITIONAL BULK CAPACITANCE
V
1µF
1µF
1µF
1µF
DIGITAL
13 (14)
14 (15)
15 (18)
17 (20)
16 (19)
27 (30)
26 (29)
30 (35)
31 (36)
28 (31)
29 (34)
18 (21)
35 (40)
FS1
FS2
SYNCIN
INL+
INL-
INR+
INR-
SHDN
MUTE
G2
G1
MONO
TH0
34 (39)
R
R
R
R
IN
IN
IN
IN
(25, 26)
22, 23
Typical Application Circuits/Functional Diagrams
TH1
V
GND
DIGITAL
CONTROL
CONTROL
0.1µF
TH2
33 (38)
GAIN
R
R
R
R
V
V
F
F
F
F
DD
DD
THERMAL SENSOR
25 (28)
V
V
BIAS
BIAS
MAX9708
(5–7, 42-44)
5–7, 36–38
MUX
PV
PV
DD
DD
47µF*
AND H-BRIDGE
AND H-BRIDGE
24 (27)
MODULATOR
MODULATOR
REGULATOR
CLASS D
CLASS D
CHARGE
PGND
PUMP
PV
PV
SS
2–4, 39–41 49–50
(2–4, 45–47, 56–57)
DD
DD
C
0.47µF
SS
SYNCOUT
OUTL+
OUTR+
CPV
OUTR-
OUTL-
TEMP
C1P
C1N
REG
DD
11 (12)
53, 54 (61, 62)
51, 52 (59, 60)
47, 48 (53, 54)
45, 46 (51, 52)
10 (11)
9 (10)
8 (9)
19, 20, 21 (22, 23, 24)
32 (37)
V
V
DIGITAL
DIGITAL
1µF
C2
C1
0.1µF
10kΩ
10kΩ
PV
C
0.01µF
REG
DD