MAX9716EVKIT Maxim Integrated Products, MAX9716EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX9716EVKIT
• Description: EVAL KIT FOR MAX9716
• Manufacturer: Maxim Integrated Products

Specifications of MAX9716EVKIT

• Amplifier Type: Class AB
• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 1.4W x 1 @ 4 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Board Type: Fully Populated
• Utilized Ic / Part: MAX9716, MAX9717
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX9716 EV kit is fully assembled and tested.
Follow these steps to verify board operation. Do not
turn on the power supply until all connections are
completed.
• 2.7V to 5.5V, 1A power supply
• Audio source (i.e., CD player, cassette player)
• 4Ω/8Ω speaker
• Headphone with 3.5mm plug (MAX9717 only)
1) Verify that JU2 has a shunt across pins 1 and 2
2) Verify that JU1 has a shunt across pins 1 and 3
3) Connect the speaker across OUT+ and OUT-.
4) Connect the 5.0V power supply to the VCC pad and
5) Connect the audio source to VIN- pad.
6) Turn on the power supply, and then turn on the
7) Plug in the headphone for the headphone mode
MAX9716 Evaluation Kit
Table 1. JU1 Functions
Table 2. JU2 Functions
2
Pins 1 and 2 (default)
Pins 2 and 3
Pins 1 and 2
Pins 1 and 3 (default)
Pins 1 and 4
(SHDN = high).
(IN+ = BIAS).
the power-supply ground to the GND pad.
audio source.
(MAX9717 only).
_______________________________________________________________________________________
JU2 SHUNT
POSITION
JU1 SHUNT POSITION
Connected to GND
Recommended Equipment
Connected to V
SHDN PIN
CC
Quick Start
Not allowed
IN+ = BIAS
Not allowed
EV KIT OUTPUT
Disabled
Enabled
IN+ PIN (MAX9716)
Jumper JU1 controls the IN+ pin (MAX9716) or BTL/SE
pin (MAX9717). See Table 1 for JU1 function.
Jumper JU2 controls the SHDN pin of the MAX9716/
MAX9717 IC. See Table 2 for JU2 functions.
R1 and R2 set the gain of the EV kit. The EV kit comes
with R1 and R2 equal to 10kΩ, setting the BTL gain to
2V/V. To change the output-voltage gain, choose R2
between 10kΩ to 50kΩ. The BTL output gain is deter-
mined by the following equation:
where A
For the MAX9717A, the gain of single-ended mode is
set by A
To evaluate the MAX9717A with the MAX9716 EV kit,
replace the MAX9716ETA with a MAX9717AETA.
Change jumper JU1 position according to Table 1.
To evaluate the MAX9717B/C/D with the MAX9716 EV
kit, replace the MAX9716ETA with a MAX9717BETA/
MAX9717CETA/MAX9717DETA, remove input and
feedback resistors R1 and R2, then short the R1 pads.
The MAX9717B/C/D has internally fixed BTL gains of
6dB, 9dB, and 12dB, respectively. Change jumper JU1
position according to Table 1.
V
V
Gain Settings (MAX9716/MAX9717A)
is the desired BTL output-voltage gain.
= R2/R1.
BTL/SE = V
Not allowed
BTL/SE = GND, BTL output mode
A
Evaluating MAX9717A/B/C/D
V
= 2 x (R2/R1)
Detailed Description
BTL/SE PIN (MAX9717)
CC
, single-ended output mode
Jumper Selection