MAX9730EVKIT+ Maxim Integrated Products, MAX9730EVKIT+ Datasheet - Page 2

• Manufacturer Part Number: MAX9730EVKIT+
• Description: EVALUATION KIT FOR MAX9730
• Manufacturer: Maxim Integrated Products

Specifications of MAX9730EVKIT+

• Amplifier Type: Class G
• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 2.4W x 1 @ 8 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: MAX9730
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX9730 EV kit features the MAX9730 Class G
power amplifier IC, designed to drive a dynamic speak-
er in BTL configuration. The EV kit operates from a DC
power supply that provides 2.7V to 5.5V and 2A of cur-
rent. The EV kit accepts single-ended or differential
audio input and provides a fully differential output. The
audio input source is amplified to drive 2.4W into an 8Ω
speaker with a 5V power supply.
The MAX9730 EV kit is shipped with a gain of +12dB
and is set by resistors R1–R4. Change resistors R1–R4 to
reconfigure the gain of the EV kit. Refer to the MAX9730
IC data sheet for more detail.
The charge-pump frequency is set by resistor R5. The
charge pump’s normal operation frequency is 330kHz.
Change R5 to change the charge-pump frequency.
Refer to the MAX9730 IC data sheet for more information.
MAX9730 Evaluation Kit
2
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Charge-Pump Frequency Set Resistor
Detailed Description
Customizing the Gain
Jumper JU1 controls the shutdown pin (SHDN) of the
MAX9730 IC. The shutdown pin can also be controlled
by an external logic controller connected to the EV kit
SHDN pad. Remove the shunt from jumper JU1 before
connecting an external controller to the SHDN pad. See
Table 1 for shunt positions.
Table 1. JU1 Jumper Selection
(Shutdown Mode)
* Default position.
POSITION
SHUNT
None
1-2*
2-3
CONNECTED TO
External logic
SHDN PIN
controller
GND
VDD
Shutdown Mode ( SHDN )
EV kit enabled
Shutdown mode
SHDN driven by external
logic controller. Shutdown is
active-low and is 1.8V logic
compliant.
Jumper Selection
EV KIT FUNCTION