MAX9709 Maxim Integrated Products, MAX9709 Datasheet - Page 2

• Manufacturer Part Number: MAX9709
• Description: 25W/50W Filterless Spread-Spectrum Stereo/Mono Class D Amplifier
• Manufacturer: Maxim Integrated Products

ABSOLUTE MAXIMUM RATINGS
PV
PV
OUTR+, OUTR-, OUTL+,
C1N to GND .............................................-0.3V to (PV
C1P to GND..............................(PV
CPV
All Other Pins to GND.............................................-0.3V to +12V
Continuous Input Current (except PV
25W/50W, Filterless, Spread-Spectrum,
Stereo/Mono, Class D Amplifier
ELECTRICAL CHARACTERISTICS
(PV
mode), SHDN = MUTE = high, G1 = low, G2 = high (A
connected between OUT_+ and OUT_-, unless otherwise stated. T
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
Supply Voltage Range
Shutdown Current
Shutdown to Full Operation
Mute to Full Operation
Input Impedance
Output Pulldown Resistance
Output Offset Voltage
Power-Supply Rejection Ratio
Common-Mode Rejection Ratio
Switch On-Resistance
Switching Frequency
Oscillator Spread Bandwidth
SYNCIN Lock Range
OUTL- to PGND, GND..........................-0.3V to (PV
OUTR-, OUTL+, and OUTL-) ..........................................20mA
DD
DD
DD
_______________________________________________________________________________________
DD
, V
to V
= V
to GND ..........................................(PV
DD
DD
DD
PARAMETER
to PGND, GND .......................................-0.3 to +30V
..........................................................-0.3V to +0.3V
= +20V, PGND = GND = 0V, C
DD
DD
SYMBOL
- 0.3V) to (CPV
CMRR
, V
I
t
PSRR
SHDN
t
MUTE
V
V
R
SON
R
f
SW
DD
OS
DD
DS
IN
, OUTR+,
DD
SS
- 0.3V) to +40V
= 0.47µF, C
Inferred from PSRR test
SHDN = low
G1 = 0, G2 = 1
G1 = 1, G2 = 1
G1 = 1, G2 = 0
G1 = 0, G2 = 0
SHDN = GND
AC-coupled input, measured between
OUT_+ and OUT_-
PV
200mV
(Note 2)
DC, input referred
f = 20Hz to 20kHz, input referred
One power switch
FS1
0
1
1
0
FS1 = FS2 = high (SSM)
Equal to f
DD
DD
DD
DD
V
= 10V to 22V
+ 0.3V)
+ 0.3V)
+ 0.3V)
P-P
= 22dB), FS1 = FS2 = high (SSM), SYNCIN = low. All load resistors (R
SW
ripple
REG
x 4
CONDITIONS
= 0.01µF, C1 = 0.1µF, C2 = 1µF, R
A
= T
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Thermal Resistance (θ
Lead Temperature (soldering, 10s) .................................+300°C
FS2
0
1 (SSM)
0
1
f
f
RIPPLE
RIPPLE
56-Pin Thin QFN (derate 47.6mW/°C above +70°C) .....3.81W
64-Pin TQFP (derate 43.5mW/°C above +70°C)............3.48W
56-Pin Thin QFN… ......................................................0.6°C/W
64-Pin TQFP…................................................................2°C/W
MIN
to T
= 1kHz
= 20kHz
MAX
, unless otherwise noted. Typical values are at T
JC
)
MIN
180
600
10
50
40
25
12
67
49
LOAD
A
= +70°C)
TYP
= ∞, MONO = low (stereo
100
100
600
200
200
160
250
0.1
0.3
±2
85
63
43
21
90
90
52
70
60
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3
MAX
1200
±40
125
220
0.6
22
90
60
30
1
UNITS
kHz
kHz
mV
ms
ms
kΩ
kΩ
dB
dB
µA
L
%
Ω
V
) are
A