MAX9729ETI+ Maxim Integrated Products, MAX9729ETI+ Datasheet - Page 18

• Manufacturer Part Number: MAX9729ETI+
• Description: IC AMP AUDIO .052W STER 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9729ETI+

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 52mW x 2 @ 32 Ohm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Features: Bass Boost, Depop, I²C, Input Multiplexer, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Product: General Purpose Audio Amplifiers
• Output Power: 49 mW
• Thd Plus Noise: 0.04 %
• Supply Current: 5.5 mA
• Maximum Power Dissipation: 2286 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 16 Ohms
• Minimum Operating Temperature: - 40 C
• Amplifier Class: AB
• No. Of Channels: 2
• Supply Voltage Range: 1.8V To 3.6V
• Load Impedance: 32ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: TQFN
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 5a. Volume Control (Register 0x00)
Stereo Headphone Amplifier with BassMax,
Volume Control, and Input Mux
18
B4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
______________________________________________________________________________________
B3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
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
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
ATTEN FROM
SETTING (dB)
MAX GAIN
MUTE
-10.4
-11.8
-13.2
-14.6
-17.4
-18.8
-20.2
-21.6
-23.1
-24.4
-27.1
-28.6
-30.1
-32.3
-35.1
-38.6
-42.1
-46.2
-50.7
-54.2
-60.2
-1.7
-3.4
-4.8
-6.2
-7.6
-16
-26
-70
-0
-9
WITH A
V_MAX
MUTE
-11.1
-12.5
-13.9
-15.3
-16.7
-18.1
-19.6
-20.9
-22.5
-23.6
-25.1
-26.6
-28.8
-31.6
-35.1
-38.6
-42.7
-47.2
-50.7
-56.7
-66.5
+3.5
+1.8
+0.1
-1.3
-2.7
-4.1
-5.5
-6.9
-8.3
-9.7
= +3.5dB
WITH A
A
V_TOTAL
V_MAX
MUTE
-11.4
-12.8
-14.2
-15.6
-17.1
-18.4
-21.1
-22.6
-24.1
-26.3
-29.1
-32.6
-36.1
-40.2
-44.7
-48.2
-54.2
+4.3
+2.6
+1.2
-0.2
-1.6
-4.4
-5.8
-7.2
-8.6
-10
-20
-64
+6
-3
(dB)
= +6dB
WITH A
V_MAX
MUTE
-10.8
-12.2
-13.6
-15.1
-16.4
-19.1
-20.6
-22.1
-24.3
-27.1
-30.6
-34.1
-38.2
-42.7
-46.2
-52.2
+6.3
+4.6
+3.2
+1.8
+0.4
-2.4
-3.8
-5.2
-6.6
-9.4
-18
-62
+8
-1
-8
= +8dB