MAX97000EVKIT+ Maxim Integrated Products, MAX97000EVKIT+ Datasheet - Page 23

• Manufacturer Part Number: MAX97000EVKIT+
• Description: KIT EVALUATION FOR MAX97000
• Manufacturer: Maxim Integrated Products

Specifications of MAX97000EVKIT+

• Description/function: Audio Amplifiers
• Operating Supply Voltage: 2.7 V to 5.5 V
• Product: Audio Development Tools
• Supply Current: 1 A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MAX97000

Nine internal registers program the MAX97000. Table
1 lists all the registers, their addresses, and power-on-
reset states. Register 0xFF indicates the device revision.
Table_1._Register_Map
Table_2._Input_Register
STATUS
Input Gain
Headphone
Mixers
Speaker Mixer
Headphone
Left
Headphone
Right
Speaker
Reserved
Limiter
Power
Management
Charge Pump
REVISION_ID
Rev ID
REGISTER
REGISTER
0x00
Speaker and Class H Headphone Amplifier
INADIFF
LPGAIN
BIT
SHDN
7
6
5
4
3
ZCD
FFM
B7
0
0
0
INADIFF
INBDIFF
PGAINA
NAME
INBDIFF
SLEW
SPKM
Audio Subsystem with Mono Class D
B6
0
0
0
0
THDCLP
LPMODE
HPLMIX
HPLM
HPRM
Input_A_Differential_Mode. Configures the input A channel as either a mono differential
signal (INA = INA2 - INA1) or as a stereo signal (INA1 = left, INA2 = right).
0 = Stereo single-ended
1 = Differential
Input_B_Differential_Mode. Configures the input B channel as either a mono differential
signal (INB = INB2 - INB1) or as a stereo signal (INB1 = left, INB2 = right).
0 = Stereo single-ended
1 = Differential
Input_A_Preamp_Gain. Set the input gain to maximize output signal level for a given input
signal range to improve the SNR of the system. PGAINA = 111 switches to a trimmed 20kI
feedback resistor for external gain setting.
___VALUE
B5
0
0
0
I
2
000
001
010
011
100
101
110
111
C Registers
PGAINA
SPKEN
B4
0
0
0
_LEVEL_(dB)
-6
-3
0
3
6
9
18
External
REV
B3
0
0
0
0
SPKVOL
HPLEN
HPRVOL
HPLVOL
B2
0
0
0
Write zeros to all unused bits in the register table when
updating the register, unless otherwise noted. Tables 2
through 7 describe each bit.
HPRMIX
SPKMIX
PGAINB
HPREN
CPSEL
DESCRIPTION
B1
0
0
THDT1
SWEN
FIXED
B0
0
ADDRESS
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0xFF
DEFAULT
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x01
0x00
0x00
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
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