MAX9892EVKIT+ Maxim Integrated Products, MAX9892EVKIT+ Datasheet - Page 2

• Manufacturer Part Number: MAX9892EVKIT+
• Description: KIT EVAL FOR MAX0902
• Manufacturer: Maxim Integrated Products

Specifications of MAX9892EVKIT+

• Main Purpose: Audio, Audio Processing
• Embedded: No
• Utilized Ic / Part: MAX9892
• Primary Attributes: Click & Pop Eliminator
• Secondary Attributes: Includes On-Board MAX4338 Headphone Amplifier
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MAX9892 Evaluation Kit
Before beginning, the following equipment is needed:
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The MAX9892 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1) Verify that a shunt is installed on pins 1-2 of jumper
2) Verify that shunts are installed on jumpers JU2 and
3) Verify that a shunt is installed on pins 1-2 of jumper
4) Verify that a shunt is not installed on jumper JU5.
5) Connect the audio source outputs to the LIN and
6) Connect the headphone to the HPOUT headphone
7) Connect the power supply across the VCC and
8) Turn on the audio source. Turn on the power supply
Note: Indicate that you are using the MAX9892 when contacting
these component suppliers.
2
AVX Corporation
M urata E l ectr oni cs
N orth Am er ica, Inc.
SUPPLIER
MAX9892 EV kit
2.7V to 5.5V, 100mA DC power supply
One stereo audio source
One pair of headphones
JU1. This configures the EV kit to accept power for
both the MAX9892 and the on-board MAX4338
headphone amplifier.
JU3. This configures the MAX9892 to accept the
on-board MAX4338 headphone amplifier outputs.
JU4. This connects the MAX9892’s MUTE pin to the
MAX4338 SHDN1 and SHDN2 pins.
This enables the on-board MAX4338 headphone
amplifier outputs.
RIN RCA jacks.
jack.
GND PCB pads.
and set the supply voltage to 5V.
_______________________________________________________________________________________
843- 946- 0238 www.avxcorp.com
770- 436- 1300 w ww .m ur ata- nor tham er ica.com
PHONE
Component Suppliers
Required Equipment
Quick Start
WEBSITE
Procedure
9) Verify that audible click or pop sounds are not
The MAX9892 EV kit evaluates the MAX9892 IC, an
audio click-and-pop eliminator in a 6-bump UCSP
package. The MAX9892 provides low-impedance paths
to ground for headphone amplifier outputs during start-
up and shutdown to eliminate audible clicks and pops.
The EV kit features an on-board MAX4338 headphone
amplifier, two RCA audio input jacks, and a headphone
jack to demonstrate the performance of the MAX9892.
When utilizing the on-board headphone amplifier, the
EV kit operates from a 2.7V to 5.5V DC power supply
connected to the VCC and GND pads.
The MAX9892 also eliminates audible click-and-pop
sounds from an external headphone amplifier connect-
ed to the EV kit. To eliminate the audible clicks and
pops from an external headphone amplifier, connect
the external headphone amplifier outputs to the HPL,
HPR, and GND PCB pads on the EV kit. Connect the
external headphone amplifier shutdown signal(s) to the
SHDN PCB pad, and the external headphone amplifier
ground to the GND pad on the MAX9892 EV kit. See
the Jumper Selection section to reconfigure jumpers
JU1–JU4. The MAX9892 can operate from a lower
input-voltage range of 1.7V to 5.5V DC connected
between the VDD and GND PCB pads when operating
with an external headphone amplifier.
The MAX9892 EV kit can be configured to operate with
an on-board headphone amplifier or an external head-
phone amplifier. Use jumpers JU1–JU4 to select
between on-board or external headphone amplifier
operation for the MAX9892 EV kit.
When operating with the on-board headphone amplifi-
er, the EV kit requires a single DC power supply with an
input-voltage range between 2.7V and 5.5V connected
between the VCC and GND pads. When operating with
an external headphone amplifier, the MAX9892 EV kit
can operate at a lower input-voltage range of 1.7V to
5.5V connected between the VDD and GND pads.
Jumper JU1 configures the input power supply for the
MAX9892 EV kit. Table 1 lists the selectable jumper
options for JU1.
Detailed Description of Hardware
detected while removing and reinstalling the shunt
on jumper JU5.
MAX9892 EV Kit Power Supply (VCC/VDD)
Jumper Selection