MAX9709ETN+D Maxim Integrated Products, MAX9709ETN+D Datasheet - Page 10

• Manufacturer Part Number: MAX9709ETN+D
• Description: IC AMP AUDIO PWR 50W STER 56TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class Dr

Specifications of MAX9709ETN+D

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 50W x 1 @ 4 Ohm; 29W x 2 @ 8 Ohm
• Voltage - Supply: 10 V ~ 22 V
• Features: Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 56-TQFN
• Product: Class-D
• Output Power: 29 W
• Common Mode Rejection Ratio (min): 70 dB
• Thd Plus Noise: 0.1 %
• Operating Supply Voltage: 10 V to 22 V
• Supply Current: 20 mA
• Maximum Power Dissipation: 3.81 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 22 V
• Supply Voltage (min): 10 V
• Amplifier Class: D
• No. Of Channels: 1
• Supply Voltage Range: 10V To 22V
• Load Impedance: 4ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: TQFN
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

25W/50W, Filterless, Spread-Spectrum,
Stereo/Mono, Class D Amplifier
Figure 1. Typical Application and Functional Diagram in Stereo Mode
10
______________________________________________________________________________________
CHANNEL
CHANNEL
RIGHT
V
LEFT
DIGITAL
+
+
-
-
CONFIGURATION: TQFN STEREO MODE, SSM, INTERNAL OSCILLATOR, GAIN = 22dB, THERMAL SETTING = +120°C
*ADDITIONAL BULK CAPACITANCE
V
1μF
1μF
1μF
1μF
DIGITAL
13
14
15
17
16
27
26
30
31
28
29
18
FS1
FS2
SYNCIN
INL+
INL-
INR+
INR-
SHDN
MUTE
G2
G1
MONO
35
TH0
R
R
R
R
IN
IN
IN
IN
34
Typical Application Circuits/Functional Diagrams
22, 23
TH1
V
GND
DIGITAL
CONTROL
CONTROL
0.1μF
TH2
33
GAIN
R
R
R
R
V
V
F
F
F
F
DD
DD
THERMAL SENSOR
25
V
V
BIAS
BIAS
MAX9709
5–7, 36–38
MUX
PV
PV
DD
DD
47μF*
AND H-BRIDGE
AND H-BRIDGE
MODULATOR
MODULATOR
REGULATOR
CLASS D
CLASS D
CHARGE
PGND
PUMP
24
PV
PV
SS
2–4, 39–41, 49–50
DD
DD
C
0.47μF
SS
SYNCOUT
OUTR+
OUTL+
CPV
OUTL-
OUTR-
TEMP
C1P
C1N
REG
DD
11
53, 54
51, 52
47, 48
45, 46
10
9
8
19, 20, 21
32
V
V
DIGITAL
DIGITAL
1μF
C2
C1
0.1μF
10kΩ
10kΩ
PV
C
0.01μF
REG
DD