OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX9750CETI+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
MAX9750/MAX9751/MAX9755
2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= PV
DD
= CPV
DD
= HPV
DD
= 5V, V
GND
= V
PGND
= V
CPGND
= 0V, SHDN = V
DD
, C
BIAS
= 1µF, C1 = C2 = 1µF, speaker load
terminated between OUT_+ and OUT_-, headphone load terminated between HPOUT_ and GND, V
GAIN1
= V
GAIN2
= V
VOL
= V
GAIN
= 0V,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
HEADPHONE AMPLIFIER (HPS = V
DD
)
Output Offset Voltage V
OS
T
A
= +25°C ±2 ±7mV
HPV
DD
= 3V to 5.5V, T
A
= +25°C 60 75
f = 1kHz, V
RIPPLE
= 200mV
P-P
73
Power-Supply Rejection Ratio
(Note 3)
PSRR
f = 10kHz, V
RIPPLE
= 200mV
P-P
63
dB
R
L
= 32Ω 40 50
Output Power P
OUT
THD+N = 1%,
f = 1kHz, T
A
= +25°C
R
L
= 16Ω 110
mW
R
L
= 32Ω, P
OUT
= 20mW, f = 1kHz 0.007
Total Harmonic Distortion Plus
Noise
THD+N
R
L
= 16Ω, P
OUT
= 75mW, f = 1kHz 0.03
%
Signal-to-Noise Ratio SNR
R
L
= 32Ω, P
OUT
= 50mW, BW = 22Hz to
22kHz
101 dB
Noise V
n
BW = 22Hz to 22kHz 11 µV
RMS
Capacitive-Load Drive C
L
No sustained oscillations 200 pF
Crosstalk L to R, R to L, f = 10kHz 88
Off-Isolation
Any unselected input to any active input,
f = 10kHz (MAX9751), input referred
74
dB
Slew Rate SR 0.4 V/µs
ESD ESD IEC air discharge ±8 kV
GAIN2 = GAIN = 0, GAIN1 = X 3
Gain A
V
GAIN2 = GAIN = 1, GAIN1 = X 0
dB
CHARGE PUMP
Charge-Pump Frequency f
OSC
500 550 600 kHz
VOLUME CONTROL (MAX9750_)
VOL Input Impedance R
VOL
100 MΩ
VOL Input Hysteresis 10 mV
Full Mute Input Voltage (Note 5)
0.858 x
HPV
DD
V
Channel Matching A
V
= -25dB to +13.5dB ±0.2 dB
BEEP INPUT (MAX9750_)
Beep Signal Minimum Amplitude V
BEEP
R
B
= 33kΩ (Note 6) 0.8 V
P-P
Beep Signal Minimum Frequency f
BEEP
300 Hz
MAX9750/MAX9751/MAX9755
2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= PV
DD
= CPV
DD
= HPV
DD
= 5V, V
GND
= V
PGND
= V
CPGND
= 0V, SHDN = V
DD
, C
BIAS
= 1µF, C1 = C2 = 1µF, speaker load
terminated between OUT_+ and OUT_-, headphone load terminated between HPOUT_ and GND, V
GAIN1
= V
GAIN2
= V
VOL
= V
GAIN
= 0V,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LOGIC INPUT (SHDN, GAIN1, GAIN2, GAIN, VOL, IN1/2)
Logic Input High Voltage V
IH
2V
Logic Input Low Voltage V
IL
0.8 V
Logic Input Current I
IN
±1µA
LOGIC INPUT HEADPHONE (HPS)
Logic Input High Voltage V
IH
2V
Logic Input Low Voltage V
IL
0.8 V
Logic Input Current I
IN
10 µA
Note 1: All devices are 100% production tested at room temperature. All temperature limits are guaranteed by design.
Note 2: Guaranteed by design. Not production tested.
Note 3: PSRR is specified with the amplifier input connected to GND through C
IN
.
Note 4: Output power levels are measured with the thin QFN’s exposed paddle soldered to the ground plane.
Note 5: See Table 3 for details of the mute levels.
Note 6: The value of R
B
dictates the minimum beep signal amplitude (see the
Beep Input
section).
MAX9750/MAX9751/MAX9755
2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
6 _______________________________________________________________________________________
Typical Operating Characteristics
(Measurement BW = 22Hz to 22kHz, T
A
= +25°C, unless otherwise noted.)
10
1
0.1
0.01
0.001
0.0001
10 1k 10k100 100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
MAX9750/51 toc01
FREQUENCY (Hz)
THD+N (%)
V
CC
= 5V
R
L
= 3Ω
A
V
= 10.5dB
OUTPUT POWER = 1.5W
OUTPUT POWER = 500mW
10
1
0.1
0.01
0.001
0.0001
10 1k 10k100 100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
MAX9750/51 toc02
FREQUENCY (Hz)
THD+N (%)
V
CC
= 5V
R
L
= 4Ω
A
V
= 10.5dB
OUTPUT POWER = 1.25W
OUTPUT POWER = 500mW
10
1
0.1
0.01
0.001
0.0001
10 1k 10k100 100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
MAX9750/51 toc03
FREQUENCY (Hz)
THD+N (%)
V
CC
= 5V
R
L
= 8Ω
A
V
= 10.5dB
OUTPUT POWER = 100mW
OUTPUT POWER = 600mW
100
0 0.5 1.0 1.5 2.0 2.5 3.0
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9750/51 toc04
OUTPUT POWER (W)
THD+N (%)
V
CC
= 5V
R
L
= 3Ω
A
V
= 10.5dB
MAX9750C
f
IN
= 10kHz
f
IN
= 1kHz
f
IN
= 20Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9750/51 toc05
OUTPUT POWER (W)
THD+N (%)
3.53.02.52.01.51.00.5
0.01
0.1
1
10
100
0.001
0
V
DD
= 5V
A
V
= 13.5dB
R
L
= 3Ω
f = 1kHz
f = 10kHz
f = 20Hz
100
0
0.5
1.0 1.5
2.0
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9750/51 toc06
OUTPUT POWER (W)
THD+N (%)
f
IN
= 1kHz
f
IN
= 20Hz
V
CC
= 5V
R
L
= 4Ω
A
V
= 10.5dB
MAX9750C
f
IN
= 10kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9750/51 toc07
OUTPUT POWER (W)
THD+N (%)
2.52.01.51.00.5
0.01
0.1
1
10
100
0.001
0 3.0
V
DD
= 5V
A
V
= 13.5dB
R
L
= 4Ω
f = 1kHz
f = 10kHz
f = 20Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9750/51 toc09
OUTPUT POWER (W)
THD+N (%)
1.51.00.5
0.01
0.1
1
10
100
0.001
0
V
DD
= 5V
A
V
= 13.5dB
R
L
= 8Ω
f = 1kHz
f = 10kHz
f = 20Hz
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

MAX9750CETI+T

Mfr. #:
Buy MAX9750CETI+T
Manufacturer:
Maxim Integrated
Description:
Audio Amplifiers Integrated Circuits (ICs)
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet