MAX9719(2003) Просмотр технического описания (PDF) - Maxim Integrated
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MAX9719 Datasheet PDF : 23 Pages
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Low-Cost, Mono/Stereo,
1.4W Differential Audio Power Amplifiers
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to GND) ..................................-0.3V to +6V
Any Other Pin to GND ...............................-0.3V to (VCC + 0.3V)
IN_, BIAS, SHDM, SHDN, SHDN Continuous Current ........20mA
OUT_ Short-Circuit Duration to GND or VCC .............Continuous
Continuous Power Dissipation (TA = +70°C)
9-Bump UCSP (derate 5.2mW/°C above +70°C)..........412mW
10-Pin TDFN (derate 24.4mW/°C above +70°C) ........1951mW
10-Pin µMAX (derate 10.3mW/°C above +70°C) ..........825mW
16-Bump UCSP (derate 8.2mW/°C above +70°C) .......659mW
16-Pin TQFN (derate 16.9mW/°C above +70°C) ........1349mW
16-Pin TSSOP (derate 21.3mW/°C above +70°C) ......1702mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Bump Temperature (soldering) Reflow............................+235°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS—5V Supply
(VCC = 5V, GND = 0, SHDN/SHDN = VCC (MAX9718/MAX9719), SHDM = GND (MAX9718), RIN = RF = 10kΩ (MAX971_A),
TA = +25°C. CBIAS = 0.1µF, no load. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Supply Voltage
Supply Current
Shutdown Supply Current
SHDN, SHDN, SHDM
Threshold
Common-Mode Bias Voltage
SYMBOL
CONDITIONS
VCC
ICC
VIN- = VIN+ = VBIAS, TA = -40°C to +85°C,
per amplifier (Note 2)
ISHDN
VIH
VIL
SHDN = SHDM = SHDN = GND, per amplifier
VBIAS (Note 3)
MIN TYP MAX UNITS
2.7
5.5
V
5.0
7.5
mA
0.1
1
µA
0.7 x VCC
V
0.3 x VCC
VCC/2
- 5%
VCC/2
VCC/2 +
5%
V
Output Offset Voltage
AV = 0dB, MAX971_A,
MAX971_B
VOS
VIN- = VIN+ = VBIAS
AV = 3dB, MAX971_C
AV = 6dB, MAX971_D
±1
±10
mV
±1
±15
±1
±20
Common-Mode Input Voltage
Input Impedance
Inferred from
VIC CMRR test
AV = 0dB, MAX971_B
0.5
AV = 3dB, MAX971_C
0.5
AV = 6dB, MAX971_D
0.5
External gain, MAX971_A
0.5
RIN MAX971_B, MAX971_C, MAX971_D
10
VCC - 0.5
VCC - 0.6
V
VCC - 0.8
VCC - 1.2
15
20
kΩ
Common-Mode Rejection Ratio CMRR
fn = 1kHz
-50
-60
dB
-60
Power-Supply Rejection Ratio
PSRR
VIN- = VIN+ = VBIAS,
VRIPPLE = 200mVP-P,
RL = 8Ω, CBIAS = 1µF
f = 217Hz
f = 1kHz
-93
dB
-90
Output Power
POUT
THD+N = 1%,
fIN = 1kHz (Note 4)
RL = 8Ω
RL = 4Ω
0.8
1.1
W
1.4
Total Harmonic Distortion Plus
Noise
THD+N
RL = 8Ω, fIN = 1kHz, POUT = 0.75W,
VCC = 5V, AV = 6dB (Note 5)
0.002
%
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