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MAX9790A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - (MAX9789A / MAX9790A) DirectDrive Headphone Amplifiers - Maxim Integrated Products

भाग संख्या MAX9790A
समारोह (MAX9789A / MAX9790A) DirectDrive Headphone Amplifiers
मैन्युफैक्चरर्स Maxim Integrated Products 
लोगो Maxim Integrated Products लोगो 
पूर्व दर्शन
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<?=MAX9790A?> डेटा पत्रक पीडीएफ

MAX9790A pdf
www.DataSheet4U.com
Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VDD, PVDD, HPVDD,
CPVDD to GND) ..................................................-0.3V to +6.0V
GND to PGND, CPGND ......................................................±0.3V
CPVSS, C1N, VSS to GND......................................-6.0V to +0.3V
HPR, HPL to GND ...............................................................±3.0V
Any Other Pin .............................................-0.3V to (VDD + 0.3V)
Duration of OUT_+, OUT_- Short Circuit
to GND or PVDD ......................................................Continuous
Duration of Short Circuit between OUT_+, OUT_-
and LDO_OUT.........................................................Continuous
Duration of Short Circuit between HPR, HPL and GND,
VSS or HPVDD..........................................................Continuous
Continuous Current (PVDD, OUT_+, OUT_-, PGND).............1.7A
Continuous Current (CPVDD, C1N, C1P, CPVSS, PVSS,
VDD, HPVDD, LDO_OUT, HPR, HPL) .............................850mA
Continuous Input Current (all other pins) .........................±20mA
Continuous Power Dissipation (TA = +70°C)
32-Pin Thin QFN Single-Layer Board
(derate 18.6mW/°C above +70°C) ..............................1489mW
32-Pin Thin QFN Multilayer Board
(derate 24.9 mW/°C above +70°C) .............................1990mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°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
(VDD = PVDD = CPVDD = HPVDD = LDO_EN (MAX9789A only) = +5V, GND = PGND = CPGND = LDO_SET (MAX9789A only) = 0V,
ILDO_OUT (MAX9789A only) = 0, C1 = C2 = CBIAS = 1µF. RL = , unless otherwise specified, GAIN1 = 0, GAIN2 = 5V (AVSP = 10dB,
AVHP = 3.5dB), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
GENERAL
Supply Voltage
Headphone Supply Voltage
SYMBOL
CONDITIONS
VDD, PVDD
Guaranteed by PSRR and LDO Line
Regulation Tests
CPVDD,
HPVDD
Guaranteed by PSRR Test
SPKR_EN
HP_EN
MIN TYP MAX UNITS
4.5 5.5 V
3.0 5.5 V
1 (MAX9789A)
0 (MAX9789A)
0.1 0.16
mA
Quiescent Current
Shutdown Current
Bias Voltage
Shutdown to Full Operation
Gain Switching Time
Channel-to-Channel Gain
Tracking
SPEAKER AMPLIFIER
Output Power
Total Harmonic Distortion Plus
Noise
Power-Supply Rejection Ratio
IDD
ISHDN
VBIAS
tSON
tSW
1 (MAX9790A)
0 (MAX9790A)
11
00
01
SPKR_EN = VDD, HP_EN = LDO_EN = GND
1.7
0.3
7
14
18
0.3
1.8
100
10
±0.1
6
13
29
40
6
1.9
µA
mA
µA
V
ms
µs
dB
POUT
THD+N
PSRR
THD+N = 1%, f = 1kHz,
TA = +25°C
RL = 8Ω, POUT = 1W, f = 1kHz
RL = 4Ω, POUT = 1W, f = 1kHz
VDD = 4.5V to 5.5V, TA = +25°C
f = 1kHz, 200mVP-P (Note 3)
f = 10kHz, 200mVP-P (Note 3)
RL = 4Ω
RL = 8Ω
2
1
0.002
0.004
72 90
70
50
W
%
dB
2 _______________________________________________________________________________________
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अनुशंसा डेटापत्रक

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