max9706etxt Maxim Integrated Products, Inc., max9706etxt Datasheet - Page 3

• Manufacturer Part Number: max9706etxt
• Description: 3-channel, 2.3w, Filterless Class D Amplifiers With Active Crossover
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL CHARACTERISTICS (continued)
(V
GND, FS0 = FS1 = GND (800Hz), MGAIN = float (-6dB), SYNC_IN = V
OUT_-, unless otherwise noted, R
C1 = 1µF, C2 = 1µF. T
Speaker Path Gain (Note 4)
Channel-to-Channel Gain
Tracking
MONO Gain Offset (Note 5)
Crosstalk
Maximum Capacitive Load
Efficiency
Class D Center Frequency
Class D Spreading Bandwidth
SYNC_IN Frequency Lock Range
Output Offset Voltage
Click-and-Pop Level
CROSSOVER FILTERS
Cutoff Frequency Accuracy
Crossover Frequency
Left-to-Right Cutoff Frequency
Tracking
DD
= PV
3-Channel, 2.3W, Filterless Class D Amplifiers
DD
PARAMETER
= HPV
DD
_______________________________________________________________________________________
A
= 5V, GND = PGND = CPGND = 0V, SHDN = V
= T
MIN
to T
L
MAX
= ∞. Headphone load R
SYMBOL
, unless otherwise noted. Typical values at T
f
V
K
OSC
f
C
XO
η
OS
CP
L
GAIN2 = 0
GAIN2 = 0
GAIN2 = 1
GAIN2 = 1
MGAIN = GND
MGAIN = float
MGAIN = V
Right to left, left to right, f
P
No sustained oscillations
R
R
FFM, SYNC_IN = GND
FFM, SYNC_IN = float
SSM, SYNC_IN = V
SSM mode, SYNC_IN = V
OUT_+ to OUT_-
Peak voltage,
A-weighted, 32 samples
per second (Note 6)
(Note 7)
FS0 = 0
FS0 = 0
FS0 = 1
FS0 = 1
OUT
L
L
= 8Ω, P
= 4Ω, P
= 1W
LH
OUT
OUT
DD
connected between HPR/HPL to GND, R
CONDITIONS
= 3 x 1W, f = 800Hz
= 3 x 1W, f = 800Hz
DD
DD
with Active Crossover
DD
, GAIN1 = GAIN2 = GND (SPKR = +9dB, HP = 0dB), HPS =
IN
DD
(SSM), speaker load R
GAIN1 = 0
GAIN1 = 1
GAIN1 = 0
GAIN1 = 1
Into shutdown
Out of shutdown
FS1 = 1
FS1 = 0
FS1 = 1
FS1 = 0
= 10kHz,
A
= +25°C.) (Note 1)
1140
1000
MIN
955
L
connected between OUT_+ and
LH
1066.7
2133.3
1100
1340
1150
1600
= ∞. C
±0.5
TYP
10.5
13.5
-4.5
-7.5
±50
200
800
0.3
12
70
90
88
14
47
50
-6
9
BIAS
MAX
1270
1540
1500
±15
= 1µF to GND,
UNITS
dBV
kHz
kHz
kHz
mV
dB
dB
dB
pF
Hz
%
%
%
%
3