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
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)
19-2932; Rev 4; 5/17
UCSP is a trademark of Maxim Integrated Products, Inc.
Typical Application Circuit and Pin Configurations appear
at end of data sheet.
**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.
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
PART PIN-PACKAGE SWITCH TURN-ON
TIME (ms)
MAX9890AEBL+T 9 UCSP-9 200
MAX9890AETA 8 TDFN-EP 200
MAX9890BEBL+T 9 UCSP-9 330
MAX9890BETA 8 TDFN-EP 330
MAX9890BETA/V+ 8 TDFN-EP 330
RAMP
UP
SINGLE SUPPLY
2.7V TO 5.5V
MAX9890
INL
INR
OUTL
OUTR
RAMP
DOWN
MAX9890 Audio Click-Pop Suppressor
Simplied Block Diagram
Selector Guide
Ordering Information
EVALUATION KIT AVAILABLE
(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
(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 SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range VCC Inferred from RON test 2.7 5.5 V
Supply Current ICC (Note 2) 14 22 µA
Shutdown Supply Current ISHDN SHDN = GND 0.001 1 µA
Input Voltage Range Inferred from RON test 0 VCC V
On-Resistance RON
Over input voltage
range
VCC = 5.5V 0.4 1 Ω
VCC = 2.7V 0.7 1.5
On-Resistance Flatness RFLAT(ON) Over input voltage range 2 mΩ
Output Discharge Resistance ROUT(DIS) 220 kΩ
Input O󰀨-Leakage Current SHDN = GND 0.001 1 µA
VCC Power-Down Threshold
(Note 3) VUVLO VCC falling 2.5 V
Click-Pop Reduction 36 dB
ESD Protection OUT_, Human Body Model ±8 kV
DYNAMIC
Turn-On Time (Note 4) tON
MAX9890A 200 ms
MAX9890B 330
Turn-O󰀨 Time tOFF (Note 5) 120 ns
Bandwidth >100 kHz
Total Harmonic Distortion Plus
Noise THD+N RL = 32Ω, 30mW, f = 1kHz 0.003 %
O󰀨-Isolation, IN_ to OUT_ f = 20kHz, SHDN = GND, RL = 32Ω -108 dB
Crosstalk (Switches ON) f = 20kHz -100 dB
Power-Supply Rejection Ratio
(Note 6) PSRR
VRIPPLE = 0.5VP-P at 20Hz, fIN = 3kHz at
1VP-P, RL = 32Ω -100
dB
VRIPPLE = 0.5VP-P at 1kHz, fIN = 3kHz at
1VP-P, RL = 32Ω -100
VRIPPLE = 0.5VP-P at 20kHz, fIN = 3kHz
at 1VP-P, RL = 32Ω -84
MAX9890 Audio Click-Pop Suppressor
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Absolute Maximum Ratings
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)
Note 1: All devices are 100% tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2: Supply current is measured when switch is on (i.e., SHDN = VCC, t > tON).
Note 3: Supply voltage level where the device enters its power-down cycle.
Note 4: Turn-on time is measured from the time VCC = 3V and SHDN > VIH until the RON specification is met.
Note 5: Switch turn-off time is measured from the time SHDN < VIL or VCC < VUVLO until the off-isolation specification is met.
Note 6: See the Power-Supply Rejection Ratio section for test method.
(VCC = 3V, CCEXT = 0.1μF, typical values are at TA = +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LOGIC INPUT (SHDN)
Logic-Input High Voltage VIH
VCC = 2.7V to 5.5V 2.0
V
VCC = 2.7V to 5.5V,
MAX9890BETA/V+ only, TA = -40°C 2.2
Logic-Input Low Voltage VIL VCC = 2.7V to 5.5V 0.8 V
Logic-Input Current IIN ±1 µA
SUPPLY CURRENT vs. TEMPERATURE
MAX9890 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
6035-15 10
5
10
15
20
25
30
35
40
0
-40 85
VCC = 5.5V
VCC = 2.7V
SHUTDOWN CURRENT vs. TEMPERATURE
MAX9890 toc03
TEMPERATURE (°C)
SHUTDOWN CURRENT (pA)
603510-15
100
200
300
400
500
600
700
800
900
1000
0
-40 85
VCC = 2.7V
VCC = 5.5V
SHDN = 0V
ON-RESISTANCE vs. IN_ VOLTAGE
MAX9890 toc01
IN_ VOLTAGE (V)
ON-RESISTANCE (Ω)
4321
0.3
0.4
0.5
0.6
0.7
0.8
0.2
0 5
VCC = 3V
VCC = 5V
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Electrical Characteristics (continued)
Typical Operating Characteristics
(VCC = 3V, CCEXT = 0.1μF, typical values are at TA = +25°C, unless otherwise noted.)
FREQUENCY (Hz)
ON-LOSS (dB)
10k1k10010 100k
ON-LOSS vs. FREQUENCY
MAX9890 toc04
-0.6
-0.2
0.2
0.6
1.0
-1.0
-0.8
-0.4
0
0.4
0.8
RL = 32Ω
RL = 16Ω
PHASE SHIFT (DEGREES)
-4
-3
-2
-1
0
1
2
-5
FREQUENCY (Hz)
10010
PHASE SHIFT vs. FREQUENCY
MAX9890 toc05
RL = 32Ω
RL = 16Ω
10k1k 100k
OFF-ISOLATION (dB)
-130
-110
-90
-70
-50
-30
-10
10
-150
FREQUENCY (Hz)
10k1k10010 100k
OFF-ISOLATION vs. FREQUENCY
MAX9890 toc06
RL = 32Ω
RL = 16Ω
CROSSTALK (dB)
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-150
FREQUENCY (Hz)
10k1k10010 100k
CROSSTALK vs. FREQUENCY
MAX9890 toc07
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9890 toc08
OUTPUT POWER (mW)
THD+N (%)
225200175150125100755025
0.001
0.1
0.01
1
10
100
0.0001
0 250
VCC = 5V
RL = 16Ω
f = 1kHz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9890toc09
OUTPUT POWER (mW)
THD+N (%)
14012010080604020
0.001
0.01
0.1
1
10
100
0.0001
0 160
VCC = 5V
RL = 32Ω
f = 1kHz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9890toc10
OUTPUT POWER (mW)
THD+N (%)
125100755025
0.001
0.01
0.1
1
10
100
0.0001
0 150
VCC = 3V
RL = 16Ω
f = 1kHz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9890toc11
OUTPUT POWER (mW)
THD+N (%)
70605040302010
0.001
0.01
0.1
1
10
100
0.0001
0 80
VCC = 3V
RL = 32Ω
f = 1kHz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9890toc12
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001
0.01
0.1
1
0.0001
10 100k
VCC = 5V
RL = 16Ω
OUTPUT POWER = 150mW
OUTPUT POWER = 25mW
MAX9890 Audio Click-Pop Suppressor
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Typical Operating Characteristics (continued)
(VCC = 3V, CCEXT = 0.1μF, typical values are at TA = +25°C, unless otherwise noted.)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9890toc13
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001
0.01
0.1
1
0.0001
10 100k
VCC = 5V
RL = 32Ω
OUTPUT POWER = 70mW
OUTPUT POWER = 20mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9890toc14
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001
0.01
0.1
1
0.0001
10 100k
VCC = 3V
RL = 16Ω
OUTPUT POWER = 60mW
OUTPUT POWER = 20mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9890toc14
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001
0.01
0.1
1
0.0001
10 100k
VCC = 3V
RL = 32Ω
OUTPUT POWER = 30mW
OUTPUT POWER = 15mW
SHDN
2V/div
VOUT
1V/div
VHEADPHONE
10mV/div
40ms/div
STARTUP WAVEFORM (DC)
MAX9890 toc16
SHDN
2V/div
VOUT
1V/div
VHEADPHONE
10mV/div
10s/div
SHUTDOWN WAVEFORM (DC)
MAX9890 toc17
SHDN
2V/div
VOUT
1V/div
VHEADPHONE
1V/div
40ms/div
STARTUP WAVEFORM (AC)
MAX9890 toc18
SHDN
2V/div
VOUT
1V/div
VHEADPHONE
1V/div
1s/div
SHUTDOWN WAVEFORM (AC)
MAX9890 toc19
MAX9890 Audio Click-Pop Suppressor
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Typical Operating Characteristics (continued)
Detailed Description
The MAX9890 provides click-and-pop suppression for
single-supply devices such as CODECs and other head-
phone amplifiers that do not have click-and-pop suppres-
sion. Single-supply audio amplifier outputs have a DC
bias voltage, VCC / 2, and require large output-coupling
capacitors to block the DC voltage from the speaker.
During startup or shutdown, the DC bias voltage is quickly
raised or lowered (Figure 1), resulting in an audible
transient through the headphone load. The MAX9890
prevents the audible transient by slowly ramping the DC
bias in an S-shaped waveform (Figure 2), suppressing
the large transient at the output of the coupling capacitor.
The S-shaped waveform shapes the frequency spectrum,
minimizing the amount of audible components present at
the output.
Internal switches couple the inputs to the outputs after
the coupling capacitors have fully charged to the input
common-mode bias voltage. When power is removed or
the device is put into shutdown, the internal switches in the
MAX9890 immediately disconnect the output and slowly
discharge the coupling capacitors through 220kΩ resistors.
The MAX9890 has an undervoltage lockout (UVLO)
that prevents device operation when VCC is below the
power-down threshold (2.5V, typ). The MAX9890 features
±8kV ESD (Human Body Model) protection on the audio
outputs.
Startup
The MAX9890 monitors VCC and SHDN. The UVLO holds
the device off when VCC is below the power-down thresh-
old (VUVLO) or SHDN is held low. The device needs both
VCC above the power-down threshold and SHDN = high
for the part to start up. Once the supply voltage is above
the power-down threshold and SHDN is high, the device
charges the coupling capacitors to the input DC bias volt-
age using CEXT to control the ramp. After the DC bias
ramp, the internal switches close, coupling the audio input
to the output. The MAX9890 provides click-pop suppres-
sion even if the output blocking capacitors are already
partially or fully charged.
The MAX9890A features a 200ms switch turn-on time,
enabling the use of up to 100μF coupling capacitors
at the output for applications requiring only a lim-
ited low-frequency response and a rapid turn-on time.
The MAX9890B features a 330ms switch turn-on time,
enabling the use of >100μF coupling capacitors at the
output for extended low-frequency response applications.
For optional click-pop suppression, mute the audio signal
until after the turn-on time has elapsed.
The internal switches stay closed as long as VCC is above
the power-down threshold voltage and SHDN is high.
Figures 1 and 2 show typical startup/power-up sequences
with and without click-pop suppression.
Shutdown
If the supply voltage falls below the UVLO threshold or
if SHDN is driven low, the device enters low-power shut-
down mode. In low-power shutdown mode, quiescent cur-
rent reduces to 0.001μA. The switches are immediately
turned off and 220kΩ resistors slowly bleed the charge
off the coupling capacitors. Figures 3 and 4 show typi-
cal shutdown/power-down sequences with and without
click-pop suppression. For optimal click-pop performance,
mute the audio signal before shutting down the MAX9890.
PIN/BUMP NAME FUNCTION
TDFN UCSP
1 C2 VCC Power Supply. VCC accepts 2.7V to 5.5V input supply. Bypass VCC to GND with a 1µF capacitor.
2 C1 SHDN Active-Low Shutdown. Connect SHDN to GND to enter a 0.1µA shutdown mode. Connect SHDN
to VCC for normal operation.
3B1 INL Left-Channel Audio Input. Connect to output of headphone amplier.
4 A1 OUTL Left-Channel Audio Output. AC couple to headphone.
5A2 GND Ground
6A3 OUTR Right-Channel Audio Output. AC couple to headphone.
7B3 INR Right-Channel Audio Input. Connect to output of headphone amplier.
8 C3 CEXT External Capacitor. Connect a 0.1µF capacitor from CEXT to GND.
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Pin Description
Switches
The MAX9890’s internal switches connect the input to
the output after the coupling capacitors are fully charged.
The MAX9890A holds the switches open for 200ms and
is ideal for coupling capacitors less than 100μF. The
MAX9890B has a longer turn-on time of 330ms and is
ideal with larger coupling capacitors less than 220μF. The
internal switches have a low on-resistance (RON = 0.5Ω)
and on-resistance flatness (RFLAT(ON) = 2mΩ) minimizing
total harmonic distortion plus noise (THD+N). The rela-
tionship below shows the contribution to THD+N through
the switch, due to on-resistance and on-resistance flat-
Figure 1. Startup/Power-Up Sequence Without Click-Pop
Suppression
Figure 3. Shutdown/Power-Down Sequence Without Click-Pop
Suppression
Figure 2. Startup/Power-Up Sequence With Click-Pop
Suppression
Figure 4. Shutdown/Power-Down Sequence With Click-Pop
Suppression
40ms/div
FFT: 25Hz/div
VOUT
1V/div
VCC/SHDN
2V/div
VHEADPHONE
100mV/div
FFTHEADPHONE
20dB/div
0dB
100ms/div
FFT: 25Hz/div
VOUT
1V/div
VHEADPHONE
500mV/div
VCC/SHDN
2V/div
FFTHEADPHONE
20dB/div
0dB
40ms/div
FFT: 25Hz/div
VOUT
1V/div
VHEADPHONE
50mV/div
FFTHEADPHONE
20dB/div
VCC/SHDN
2V/div
0dB
100ms/div
FFT: 25Hz/div
VOUT
1V/div
VHEADPHONE
20mV/div
FFTHEADPHONE
20dB/div
VCC/SHDN
2V/div
0dB
MAX9890 Audio Click-Pop Suppressor
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ness (on-resistance flatness is defined as the difference
between the maximum and minimum values of on-resis-
tance measured over the specific analog-signal range).
FLAT(ON)
MAXIMUM
LOAD
R
THD 100%
4R
= ×
Power-Supply Rejection Ratio (PSRR)
PSRR is the measurement of AC power-supply ripple or
noise that couples to the output. Variations in supply volt-
age corrupt the audio signal, due to changes in the RON
value by supply modulation. The FFT shown in Figure 5
was taken with a 19kHz 1VP-P sine wave onto the 5V DC
supply voltage, and a 20kHz 1VP-P sine wave applied at
IN_ with a 32Ω load is shown in Figure 6. The MAX9890
maintains a -100dB (typ) PSRR across the supply voltage
range eliminating any corruption of the audio signal from
supply variations. Therefore, with a zero audio signal, the
RON variation due to supply voltage ripple does not con-
tribute to any output signal modulation.
Low-Frequency Response
In addition to the cost and size disadvantages of the
output-coupling capacitors, these capacitors limit the
amplifier’s low-frequency response and can distort the
audio signal.
The impedance of a headphone or speaker load and the
output-coupling capacitor form a highpass filter with the
-3dB point set by:
3dB L OUT
1
f_ 2RC
=
π
where RL is the headphone impedance and COUT is
the output-coupling capacitor value. The highpass filter
is required by conventional single-ended, single power-
supply headphone drivers to block the midrail DC bias
component of the audio signal from the headphones.
The drawback to the filter is that it can attenuate low-
frequency signals. Larger values of COUT reduce this
effect but result in physically larger, more expensive
capacitors. Figure 7 shows the relationship between the
size of COUT and the resulting low-frequency attenua-
tion. Note that the -3dB point for a 16Ω headphone with a
100μF blocking capacitor is 100Hz, well within the normal
audio band, resulting in low-frequency attenuation of the
reproduced signal.
The MAX9890A and MAX9890B have different turn-on
times to accommodate different size output-coupling
capacitors (see Table 1). Using a capacitor smaller than
the specified maximum allowed does not degrade click-
pop suppression. Therefore, capacitors less than 100μF
can be used with the A or B version devices.
Figure 5. FFT for PSRR Figure 6. PSRR Test Circuit
-140
-70
-80
-90
-100
-110
-120
-130
-50
-60
-30
-40
-20
0
-10
10
15 17 19 21 23 25
VCC = 4.5V TO 5.5V, fVCC = 19kHz,
RL = 32Ω, VIN = 1VP-P, fIN = 20kHz
FREQUENCY (kHz)
OUTPUT SPECTRUM (dBV)
RAMP
UP
VDC = 5V
VAC = 1VP-P
19kHz
VDC = 2.0V
VAC = 1VP-P
20kHz
SHDN
MAX9890
IN_
IN_
OUT_
RL
OUT_
RAMP
DOWN
VCC
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External Capacitor (CCEXT)
The external click-pop suppression capacitor at CEXT
serves a dual purpose. On power-up, CCEXT is charged
by an internal current source and is used to slowly ramp
up the external coupling capacitors. When the device
is powered down, CCEXT powers the internal circuitry
used to drain the external coupling capacitors. A 0.1μF
capacitor between CEXT and GND provides clickless/
popless operation with coupling capacitors for both the
MAX9890A and MAX9890B, even with the rapid removal
of supply voltage.
Applications Information
Layout
Good layout improves performance by decreasing the
amount of stray capacitance and noise. To decrease stray
capacitance, minimize PC board trace lengths and resis-
tor leads, and place external components as close to the
device as possible.
Power Supply and Bypassing
The excellent PSRR of the MAX9890 allows it to operate
from noisy power supplies. In most applications, a 0.1μF
capacitor from VCC to GND is sufficient. This bypass
capacitor should be placed close to VCC.
UCSP Applications Information
For the latest application details on UCSP construction,
dimensions, tape-carrier information, printed circuit board
techniques, bump-pad layout, and recommended reflow
temperature profile, as well as the latest information on
reliability testing results, refer to Application Note 1891:
Wafer-Level Packaging (WLP) and its Applications at
www.maximintegrated.com/UCSP.
Table 1. Coupling Capacitor
*May experience some degradation of click-pop suppression.
Figure 7. Low-Frequency Attenuation for Common DC-Blocking
Capacitor Values
CAPACITOR
SIZE (µF)
MAX9890A
TURN-ON TIME
(200ms)
MAX9890B
TURN-ON TIME
(300ms)
33 √ √
47 √ √
100 √ √
150 *√
220 * √
330 — *
470 — *
0
-30
10 100 1k 10k 100k
LOW-FREQUENCY ROLLOFF
(RL = 16Ω)
-24
-27
-12
-15
-18
-21
-6
-9
-3
FREQUENCY (Hz)
ATTENUATION (dB)
330mF
220mF
100mF
33mF
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Chip Information
PROCESS: BiCMOS
TDFN-EP
TOP VIEW
1
2
8
7
3
4
6
5
OUTR
GND
OUTL
CEXT
INR
SHDN
INL
VCC
MAX9890
NOTE: GND IS CONNECTED TO THE UNDERSIDE METAL SLUG. SHDN
GND
VCC
INL
OUTR
INR
OUTL
CEXT
UCSP
A
B
C
1 2 3
MAX9890
(BUMPS ON BOTTOM)
HPLOUT
HPROUT
STARTUP AND
SHUTDOWN
CONTROL
GND
SHDN
OUTL
OUTR
INL
INR
CEXT
VCC
0.1µF
1µF
5
7
3
2
4
6
8
1
2.7V TO 5.5V
( ) UCSP BUMP.
*USER-DEFINED VALUE.
(C2)
(C3)
(A1)
(A3)
(A2)
(B3)
(B1)
(C1)
*
*
MAX9890
RAMP-UP AND
RAMP-DOWN
CONTROL
CODEC
WITH INTEGRATED
HEADPHONE
DRIVERS
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Pin Congurations
Typical Application Circuit
PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO.
UCSP B9+2 21-0093 Refer to Application Note 1891
TDFN-EP T833+2 21-0137 90-0059
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Package Information
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
3 3/14 Added the MAX9890BETA/V+ to the Ordering Information, Selector Guide, and
Electrical Characteristics tables 1, 3
45/17 Updated MAX9890AEBL-T, MAX9890BEBL-T to MAX9890AEBL+T, MAX9890BEBL+T
in the Ordering Information and Selector Guide tables 1
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX9890 Audio Click-Pop Suppressor
© 2017 Maxim Integrated Products, Inc.
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12
Revision History
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