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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX9890 Datasheet

Audio Click-Pop Suppressor

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MAX9890
EVALUATION KIT AVAILABLE
Audio Click-Pop Suppressor
General Description
The MAX9890 provides click-and-pop suppression for
devices such as CODECs with test integrated headphone
amplifiers that lack a clickless/popless startup/power-up
or shutdown/power-down. The device controls the ramp-
ing of the DC bias voltage on the output-coupling capaci-
tors and the application of the audio signal to ensure that
no audible transients are present at the headphones. The
MAX9890A features a 200ms startup time for use with up
to 100μF coupling capacitors. The MAX9890B features
a 330ms startup time for use with greater than 100μF
coupling capacitors.
The MAX9890 consumes 14μA of supply current and
0.001μA in shutdown, while contributing less than 0.003%
THD+N into a 32Ω load. ESD (Human Body Model) pro-
tection circuitry on the outputs protect the MAX9890 and
devices further up the signal chain from ESD strikes up
to ±8kV.
The MAX9890 is available in a miniature (1.5mm x 1.5mm
x 0.6mm) 9-bump chip-scale package (UCSP™), as well
as an 8-pin TDFN package (3mm x 3mm x 0.8mm), and is
specified for operation over the -40°C to +85°C extended
temperature range.
Applications
● High-End Notebook
Audio
Portable DVD Players
Portable MP3 Players
PDAs
Cell Phones
Simplified Block Diagram
SINGLE SUPPLY
2.7V TO 5.5V
INL OUTL
RAMP
UP
RAMP
DOWN
INR OUTR
MAX9890
UCSP is a trademark of Maxim Integrated Products, Inc.
Features
36dB Click-Pop Suppression
2.7V to 5.5V Single-Supply Operation
Clickless/Popless Startup/Power-Up and
Shutdown/Power-Down
0.001μA Low-Power Shutdown Mode
THD+N < 0.003% Into 32Ω
±8kV ESD Protected Outputs (Human Body Model)
Requires Only One 0.1μF Capacitor to Complete the
Circuit
Low 14μA Supply Current
Tiny Packaging
9-Bump UCSP (1.5mm x 1.5mm x 0.6mm)
8-Pin TDFN (3mm x 3mm x 0.8mm)
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX9890AEBL+T -40°C to +85°C 9 UCSP-9
ADV
MAX9890AETA -40°C to +85°C 8 TDFN-EP** AHA
MAX9890BEBL+T -40°C to +85°C 9 UCSP-9
ADW
MAX9890BETA -40°C to +85°C 8 TDFN-EP** AHB
MAX9890BETA/V+ -40°C to +85°C 8 TDFN-EP** BRQ
**EP = Exposed pad.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
/V denotes an automotive qualified part that conforms to
AEC-Q100.
Selector Guide
PART
MAX9890AEBL+T
MAX9890AETA
MAX9890BEBL+T
MAX9890BETA
MAX9890BETA/V+
PIN-PACKAGE
9 UCSP-9
8 TDFN-EP
9 UCSP-9
8 TDFN-EP
8 TDFN-EP
SWITCH TURN-ON
TIME (ms)
200
200
330
330
330
Typical Application Circuit and Pin Configurations appear
at end of data sheet.
19-2932; Rev 4; 5/17


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX9890 Datasheet

Audio Click-Pop Suppressor

No Preview Available !

MAX9890
Audio Click-Pop Suppressor
Absolute Maximum Ratings
(All Voltages are Referenced to GND)
VCC.........................................................................................+6V
CEXT, SHDN, OUT_................................................-0.3V to +6V
IN_............................................................. -0.3V to (VCC + 0.3V)
Continuous Current (IN_, OUT_)....................................±150mA
Continuous Current (All Other Pins).................................±20mA
Continuous Power Dissipation (TA = +70°C)
8-Pin TDFN (derate 24.4mW/°C above +70°C).........1951mW
9-Bump UCSP (derate 4.7mW/°C above +70°C).........379mW
Operating Temperature Range............................ -40°C to +85°C
Storage Temperature Range............................. -65°C to +150°C
Junction Temperature.......................................................+150°C
Lead Temperature (soldering, 10s).................................. +300°C
Bump Temperature (soldering)
Reflow........................................................................... +235°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
(VCC = 3V, SHDN = VCC, GND = 0, CCEXT = 0.1μF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
(Note 1)
PARAMETER
Supply Voltage Range
Supply Current
Shutdown Supply Current
Input Voltage Range
On-Resistance
On-Resistance Flatness
Output Discharge Resistance
Input Off-Leakage Current
VCC Power-Down Threshold
(Note 3)
Click-Pop Reduction
ESD Protection
DYNAMIC
Turn-On Time (Note 4)
Turn-Off Time
Bandwidth
Total Harmonic Distortion Plus
Noise
Off-Isolation, IN_ to OUT_
Crosstalk (Switches ON)
Power-Supply Rejection Ratio
(Note 6)
SYMBOL
CONDITIONS
VCC
ICC
ISHDN
RON
RFLAT(ON)
ROUT(DIS)
Inferred from RON test
(Note 2)
SHDN = GND
Inferred from RON test
Over input voltage VCC = 5.5V
range
VCC = 2.7V
Over input voltage range
SHDN = GND
VUVLO VCC falling
OUT_, Human Body Model
tON
tOFF
MAX9890A
MAX9890B
(Note 5)
THD+N
PSRR
RL = 32Ω, 30mW, f = 1kHz
f = 20kHz, SHDN = GND, RL = 32Ω
f = 20kHz
VRIPPLE = 0.5VP-P at 20Hz, fIN = 3kHz at
1VP-P, RL = 32Ω
VRIPPLE = 0.5VP-P at 1kHz, fIN = 3kHz at
1VP-P, RL = 32Ω
VRIPPLE = 0.5VP-P at 20kHz, fIN = 3kHz
at 1VP-P, RL = 32Ω
MIN TYP MAX UNITS
2.7 5.5 V
14 22
µA
0.001
1
µA
0
VCC
V
0.4 1
0.7 1.5
2 mΩ
220 kΩ
0.001
1
µA
2.5 V
36 dB
±8 kV
200
330
120
>100
0.003
-108
-100
-100
-100
-84
ms
ns
kHz
%
dB
dB
dB
www.maximintegrated.com
Maxim Integrated │2


Part Number MAX9890
Description Audio Click-Pop Suppressor
Maker Maxim Integrated
PDF Download

MAX9890 Datasheet PDF






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