MAX97000EWA+ MAXIM [Maxim Integrated Products], MAX97000EWA+ Datasheet - Page 24

• Manufacturer Part Number: MAX97000EWA+
• Description: Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier
• Manufacturer: MAXIM [Maxim Integrated Products]

Table 2. Input Register (continued)
Table 3. Mixer Registers
Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
24
REGISTER
REGISTER
0x01
0x02
BIT
BIT
2
1
0
7
6
5
4
3
2
1
0
3
2
1
0
HPRMIX
HPLMIX
SPKMIX
PGAINB
NAME
NAME
Left Headphone Mixer. Selects which of the four inputs is routed to the left headphone output.
Right Headphone Mixer. Selects which of the four inputs is routed to the right headphone output.
Speaker Mixer. Selects which of the four inputs is routed to the speaker output.
Input B Preamp Gain. Set the input gain to maximize output signal level for a given input
signal range to improve the SNR of the system. PGAINB = 111 switches to a trimmed 20kI
feedback resistor for external gain setting.
VALUE
VALUE
VALUE
VALUE
0000
xxx1
xx1x
x1xx
1xxx
0000
xxx1
xx1x
x1xx
1xxx
0000
xxx1
xx1x
x1xx
1xxx
000
001
010
011
100
101
110
111
INPUT
No input
INA1 (Disabled when INADIFF = 1)
INA2 (Select when INADIFF = 1)
INB1 (Disabled when INBDIFF = 1)
INB2 (Select when INBDIFF = 1)
INPUT
No input
INA1 (Disabled when INADIFF = 1)
INA2 (Select when INADIFF = 1)
INB1 (Disabled when INBDIFF = 1)
INB2 (Select when INBDIFF = 1)
INPUT
No input
INA1 (Disabled when INADIFF = 1)
INA2 (Select when INADIFF = 1)
INB1 (Disabled when INBDIFF = 1)
INB2 (Select when INBDIFF = 1)
LEVEL (dB)
-6
-3
0
3
6
9
18
External
DESCRIPTION
DESCRIPTION
Mixers