MAX9892EVKIT+ Maxim Integrated Products, MAX9892EVKIT+ Datasheet - Page 3

• 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

When operating with the on-board headphone amplifi-
er, the MAX9892 IC receives the headphone output sig-
nal from the on-board headphone amplifier. When oper-
ating with an external headphone amplifier, the
MAX9892 IC receives the external headphone amplifier
output signal connected to the HPL, HPR, and GND
PCB pads on the MAX9892 EV kit.
Jumpers JU2 and JU3 provide an option to select
between the on-board or external headphone amplifier
outputs for the MAX9892 EV kit. Table 2 lists the selec-
table jumper options for JU2 and JU3.
Table 1. JU1 Jumper Selection (VCC/VDD)
* Default position.
** MAX4338 limits the lower input range to 2.7V.
Table 3. JU4, JU5 Jumpers Function (MUTE)
* Default position.
Not installed
POSITION
SHUNT
JU4
1-2*
1-2*
SHUNT POSITION
2-3
2-3
Headphone Amplifier Outputs (HPL, HPR)
Not installed* MAX4338 shutdown pins and VCC through resistor R5
Not installed
(VCC = 2.7V to 5.5V DC)
(VDD = 1.7V to 5.5V DC)
Installed
Installed
POWER SUPPLY
_______________________________________________________________________________________
CONNECTED TO
JU5
VCC PCB pad
VDD PCB pad
Unconnected
MAX4338 shutdown pins and GND
SHDN PCB pad and external pulled up
SHDN PCB pad and GND
MAX9892 MUTE PIN CONNECTED TO
MAX9892 EV kit
HEADPHONE
(not powered)
AMPLIFIER
On-board**
External
MAX9892 Evaluation Kit
When operating with the on-board headphone amplifi-
er, connect the MAX9892 MUTE pin to the SHDN1 and
SHDN2 pins of the on-board MAX4338 headphone
amplifier. When operating with an external headphone
amplifier, connect the MAX9892 MUTE pin to the SHDN
PCB pad on the MAX9892 EV kit. After the desired
shutdown signal is properly connected to the MAX9892
MUTE pin, use the MAX9892 MUTE pin to start up or
shut down the headphone amplifier to demonstrate the
performance of the MAX9892 IC.
Jumper JU4 selects between the on-board or external
headphone amplifier shutdown input for the MAX9892
EV kit. Jumper JU5 pulls the MAX9892 MUTE pin to
ground to initiate shutdown for the headphone amplifier
selected by jumper JU4. Table 3 lists the jumper
options for JU4 and JU5.
Table 2. JU2, JU3 Jumpers Function
(HPL, HPR)
* Default position.
Not installed
POSITION
Installed*
SHUNT
Mute and Shutdown Inputs (MUTE, SHDN1,
On-board headphone amplifier (MAX4338)
External headphone amplifier (connected to
HPL, HPR, and GND PCB pads)
HEADPHONE AMPLIFIER OUTPUTS
HEADPHONE AMPLIFIER OUTPUTS
Disabled (on-board)
Enabled (on-board)
Disabled (external)
Enabled (external)
SHDN2, and SHDN)
3