MAX97000EWA+T Maxim Integrated Products, MAX97000EWA+T Datasheet - Page 25
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MAX97000EWA+T
Manufacturer Part Number
MAX97000EWA+T
Description
IC AUDIO SUBSYSTEM 25WLP
Manufacturer
Maxim Integrated Products
Series
DirectDrive™r
Type
Class Dr
Datasheet
1.MAX97000EWAT.pdf
(34 pages)
Specifications of MAX97000EWA+T
Output Type
1-Channel (Mono) with Stereo Headphones
Max Output Power X Channels @ Load
930mW x 1 @ 8 Ohm; 40mW x 2 @ 16 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Features
Depop, Differential Inputs, I²C, Mute, Shutdown, Volume Control
Mounting Type
Surface Mount
Package / Case
25-WLP
Product
Class-D
Output Power
725 mW
Available Set Gain
12 dB
Common Mode Rejection Ratio (min)
32 dB to 55 dB
Thd Plus Noise
0.05 %
Operating Supply Voltage
2.7 V to 5.5 V
Supply Current
0.4 mA to 1.45 mA
Maximum Power Dissipation
850 mW
Maximum Operating Temperature
+ 80 C
Mounting Style
SMD/SMT
Audio Load Resistance
41.2 KOhms
Input Signal Type
Differential
Minimum Operating Temperature
- 40 C
Output Signal Type
Differential
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MAX97000EWA+T
Table_4._Volume_Control_Registers
REGISTER
0x03
Speaker and Class H Headphone Amplifier
BIT
7
6
5
4
3
2
1
0
HPLVOL
NAME
SLEW
HPLM
ZCD
Audio Subsystem with Mono Class D
Zero-Crossing_Detection. Determines whether zero-crossing detection is used on all
volume control changes to reduce clicks and pops. Disabling zero-crossing detection
allows volume changes to occur immediately.
0 = Enabled
1 = Disabled
Volume_Slewing._Determines whether volume slewing is used on all volume control
changes to reduce clicks and pops. When enabled, volume changes cause the
MAX97000 to ramp through intermediate volume settings whenever a change to the
volume is made. If ZCD = 1, slewing occurs at a rate of 0.2ms per step. If ZCD = 0, slew
time depends on the input signal. Write a 1 to this bit to disable slewing and implement
volume changes immediately. This bit also activates soft-start at power-on and soft-stop
and power-off.
0 = Enabled
1 = Disabled
Left_Headphone_Mute
0 = Unmuted
1 = Muted
Left_Headphone_Volume
____VALUE
0x0C
0x0D
0x0A
0x0B
0x0E
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0F
LEVEL_(dB)
-64
-60
-56
-52
-48
-44
-40
-37
-34
-31
-28
-25
-22
-19
-16
-14
VALUE
0x1A
0x1B
0x1C
0x1D
0x1E
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1F
DESCRIPTION
LEVEL_(dB)
-12
-10
-8
-6
-4
-2
-1
0
1
2
3
4
4.5
5
5.5
6
Volume Control
25