MAX9776EVKIT+ Maxim Integrated Products, MAX9776EVKIT+ Datasheet - Page 29

• Manufacturer Part Number: MAX9776EVKIT+
• Description: EVALUATION KIT FOR MAX9776
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r

Specifications of MAX9776EVKIT+

• Amplifier Type: Class D
• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.5W x 1 @ 4 Ohm; 60mW x 2 @ 16 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: MAX9776
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX9775/MAX9776 have separate volume controls
for each of the internal signals: Left (L), Right (R), and
Mono (M). The final gain of each signal is determined
by the way the following bits are set: MVOL, LVOL,
Table 6. Mono/Left/Right Volume Control Registers
Table 7. Volume Control Settings
Mono Volume Control
Left Volume Control
Right Volume Control
B4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
B3
REGISTER
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
2 x 1.5W, Stereo Class D Audio Subsystem
MVOL/LVOL/RVOL
______________________________________________________________________________________
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
with DirectDrive Headphone Amplifier
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
B7
B0
0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
GAIN (dB)
Mute
B6
-75
-71
-67
-63
-59
-55
-51
-47
-44
-41
-38
-35
-32
-29
-26
0
1
1
B5
1
0
1
RVOL, INA+20dB, IN+6dB, and MONO+6dB. Table 7
shows how to configure the L, R, and M amplifiers for
specific gains.
B4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
B4
B3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
MVOL/LVOL/RVOL
B3
Mono/Left/Right Volume Control
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
MVOL
RVOL
LVOL
B2
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
B1
GAIN (dB)
-23
-21
-19
-17
-15
-13
-11
-9
-7
-6
-5
-4
-3
-2
-1
0
B0
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