max9709etntd Maxim Integrated Products, Inc., max9709etntd Datasheet - Page 11

• Manufacturer Part Number: max9709etntd
• Description: Max9709 25w/50w, Filterless, Spread-spectrum, Stereo/mono, Class D Amplifier
• Manufacturer: Maxim Integrated Products, Inc.

Figure 2. Typical Application and Functional Diagram in Mono Mode
AUDIO
INPUT
V
V
DIGITAL
DIGITAL
+
-
CONFIGURATION: TQFN MONO MODE, SSM, INTERNAL OSCILLATOR, GAIN = 22dB, THERMAL SETTING = +120°C
( ) TQFP PACKAGE
*ADDITIONAL BULK CAPACITANCE
V
1µF
1µF
DIGITAL
15 (18)
14 (15)
13 (14)
17 (20)
16 (19)
30 (35)
31 (36)
28 (31)
29 (34)
18 (21)
______________________________________________________________________________________
Typical Application Circuits/Functional Diagrams (continued)
35 (40)
25W/50W, Filterless, Spread-Spectrum,
FS1
FS2
SYNCIN
INR+
INR-
SHDN
MUTE
G1
G2
MONO
TH0
R
R
34 (39)
IN
IN
(25, 26)
22, 23
TH1
V
GND
DIGITAL
CONTROL
CONTROL
0.1µF
33 (38)
TH2
GAIN
Stereo/Mono, Class D Amplifier
R
R
V
V
F
F
DD
DD
THERMAL SENSOR
25 (28)
V
BIAS
MAX9709
(5–7, 42–44)
5–7, 36–38
MUX
PV
PV
DD
DD
0.1µF
47µF*
AND H-BRIDGE
AND H-BRIDGE
24 (27)
MODULATOR
MODULATOR
REGULATOR
PGND
CLASS D
CLASS D
CHARGE
PUMP
PV
PV
SS
2–4, 39–41, 49–50
(2–4, 45–47, 56–57)
DD
DD
C
0.47µF
SS
SYNCOUT
OUTR+
CPV
OUTL+
OUTR-
OUTL-
TEMP
C1N
C1P
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
10kΩ
C2
10kΩ
C1
0.1µF
C
0.01µF
PV
REG
DD
11