max9708etntd Maxim Integrated Products, Inc., max9708etntd Datasheet - Page 9

• Manufacturer Part Number: max9708etntd
• Description: Max9708 20w/40w, Filterless, Spread-spectrum, Mono/stereo, Class D Amplifier
• Manufacturer: Maxim Integrated Products, Inc.

22, 23, 24
25, 26
51, 52
53, 54
59, 60
61, 62
TQFP
EP
10
11
12
14
15
18
19
20
21
27
28
29
30
31
34
35
36
37
38
39
40
9
PIN
19, 20, 21
_______________________________________________________________________________________
TQFN
22, 23
45, 46
47, 48
51, 52
53, 54
EP
10
11
13
14
15
16
17
18
24
25
26
27
28
29
30
31
32
33
34
35
8
9
20W/40W, Filterless, Spread-Spectrum,
SYNCOUT Open-Drain, Slew-Rate Limited Clock Output. Pullup with a 10kΩ resistor to REG.
SYNCIN
OUTR+
OUTL+
CPV
MONO
OUTR-
NAME
OUTL-
SHDN
MUTE
TEMP
INR+
INL+
GND
C1N
REG
INR-
C1P
INL-
V
FS2
FS1
TH2
TH1
TH0
G1
G2
SS
EP
DD
DD
Charge-Pump Flying Capacitor C1, Negative Terminal
Charge-Pump Flying Capacitor C1, Positive Terminal
Charge-Pump Power Supply. Bypass to PV
as possible.
Clock Synchronization Input. Allows for synchronization of the internal oscillator with an
external clock. SYNCIN is internally pulled up to V
Frequency Select 2
Frequency Select 1
Left-Channel Negative Input (Stereo Mode Only)
Left-Channel Positive Input (Stereo Mode Only)
Mono/Stereo Mode Input. Drive logic-high for mono mode. Drive logic-low for stereo
mode.
Internal Regulator Output Voltage (6V). Bypass with a 0.01µF capacitor to GND.
Analog Ground
Soft-Start. Connect a 0.47µF capacitor to GND to utilize soft-start power-up sequence.
Analog Power Supply. Bypass to GND with a 0.1µF capacitor as close to pin as
possible.
Right-Channel Negative Input. In mono mode, INR- is the negative input.
Right-Channel Positive Input. In mono mode, INR+ is the positive input.
Gain Select Input 1
Gain Select Input 2
Active-Low Shutdown Input. Drive SHDN high for normal operation. Drive SHDN low to
place the device in shutdown mode.
Active-Low Mute Input. Drive logic-low to place the device in mute. In mute mode,
Class D output stage is no longer switching. Drive high for normal operation. MUTE is
internally pulled up to V
Thermal Flag Output, Open Drain. Pull up with a 10kΩ resistor to REG.
Temperature Flag Threshold Select Input 2
Temperature Flag Threshold Select Input 1
Temperature Flag Threshold Select Input 0
Right-Channel Negative Output
Right-Channel Positive Output
Left-Channel Negative Output
Left-Channel Positive Output
Exposed Paddle. Connect to GND with multiple vias for best heat dissipation.
Mono/Stereo, Class D Amplifier
REG
with a 100kΩ resistor.
Pin Description (continued)
FUNCTION
DD
with a 1µF capacitor as close to the pin
REG
with a 100kΩ resistor.
9