max9705aeub+ Maxim Integrated Products, Inc., max9705aeub+ Datasheet - Page 3

• Manufacturer Part Number: max9705aeub+
• Description: Max9705 2.3w, Ultra-low-emi, Filterless, Class D Audio Amplifier
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL CHARACTERISTICS (continued)
(V
to T
ELECTRICAL CHARACTERISTICS
(V
T
Note 1: All devices are 100% production tested at +25°C. All temperature limits are guaranteed by design.
Note 2: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For R
Note 3: Inputs AC-coupled to GND.
Note 4: Testing performed with 8Ω resistive load in series with 68µH inductive load connected across BTL output. Mode transitions
Note 5: SYNC has a 1MΩ resistor to V
Rise/Fall Time
Signal-to-Noise Ratio
Oscillator Frequency
SYNC Frequency Lock Range
Efficiency
DIGITAL INPUTS (SHDN, SYNC)
Input Thresholds
SHDN Input Leakage Current
SYNC Input Current
Quiescent Current
Shutdown Current
Power-Supply Rejection Ratio
Output Power
Total Harmonic Distortion
Plus Noise
Signal-to-Noise Ratio
MAX
DD
DD
MAX
, unless otherwise noted. Typical values are at T
= PV
= PV
, unless otherwise noted. Typical values are at T
For R
are controlled by SHDN pin. K
level)/(peak voltage during mode transition, no input signal)]. Units are expressed in dB.
DD
DD
PARAMETER
PARAMETER
= SHDN = 3.3V, GND = PGND = 0V, SYNC = GND (FFM), R
= SHDN = 5V, GND = PGND = 0V, SYNC = GND (FFM), R
L
= 8Ω, L = 68µH. For R
_______________________________________________________________________________________
t
RISE
SYMBOL
SYMBOL
L
THD+N
REF
CP
I
PSRR
= 16Ω, L = 136µH.
P
f
SHDN
SNR
SNR
OSC
I
OUT
DD
, t
η
level is calculated as 20 x log[(peak voltage under normal operation at rated power
= 1.25V.
FALL
2.3W, Ultra-Low-EMI, Filterless,
10% to 90%
V
SYNC = GND
SYNC = float
SYNC = V
P
V
V
(Note 5)
200mV
THD+N = 1%,
f = 1kHz
f = 1kHz, either
FFM or SSM
V
3V
OUT
OUT
IH
IL
OUT
RMS
A
= +25°C.) (Notes 1, 2)
A
= 2V
= 800mW, f
=
P-P
= +25°C.) (Notes 1, 2)
DD
ripple
RMS
BW = 22Hz to
22kHz
A-weighted
(SSM mode)
CONDITIONS
CONDITIONS
IN
Class D Audio Amplifier
f = 217Hz
f = 20kHz
R
R
R
MAX9705_ETB+T and
MAX9705_EUB+ only
R
R
= 1kHz, R
L
L
L
L
L
BW = 22Hz
to 22kHz
A-weighted
= 4Ω, P
= 16Ω
= 8Ω
= 4Ω
= 8Ω, P
L
= ∞, R
L
= ∞, R
OUT
OUT
L
FFM
SSM
FFM
SSM
L
= 8Ω
connected between OUT+ and OUT-, T
L
= 1.75W
= 1.0W
connected between OUT+ and OUT-, T
FFM
SSM
FFM
SSM
1250
MIN
MIN
980
800
2
1100
1450
1220
±120
-1.25
1400
2300
TYP
TYP
0.55
0.02
0.05
750
0.1
15
91
89
93
91
89
75
60
94
91
97
93
7
L
= 4Ω, L = 33µH.
MAX
1220
1650
2000
MAX
±10
±10
0.8
A
= T
A
UNITS
UNITS
= T
kHz
kHz
mW
mA
dB
µA
µA
µA
dB
dB
ns
MIN
%
%
V
MIN
to
3