Rainbow Electronics MAX9796 - Manual (Page 23)

Output Mode Control
MONO+6dB in the Output Mode Control register allows
an extra 6dB of gain on the internal mono signal:
1 = Additional 6dB of gain is applied to the internal
Mono (M) signal path.
0 = No additional gain is applied to the Internal Mono
(M) signal path.
The MAX9796 has four output amplifiers: a mono
receiver amplifier, a stereo DirectDrive headphone
amplifier, and one mono Class D amplifier.
MAX9796
2.3W, High-Power Class D Audio Subsystem
with DirectDrive Headphone Amplifiers
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B7 B6 B5 B4 B3 B2 B1 B0
Output Mode Control 1 0 0 Mono+6dB OUTMODE (Table 9)
Table 8. Output Mode Control Register
OUTMODE
MODE
B3 B2 B1 B0
RECEIVER LEFT HP RIGHT HP SPK
0 0 0 0 0 — — — —
1 0 0 0 1 M — — —
2 0 0 1 0 — — — M
3 0 0 1 1 — M M M
4 0 1 0 0 — M M —
5 0 1 0 1 — — — —
6 0 1 1 0 L + R — — —
7 0 1 1 1 — — — L + R
8 1 0 0 0 — L R L + R
9 1 0 0 1 — L R —
10 1 0 1 0 — — — —
11 1 0 1 1 M + L + R — — —
12 1 1 0 0 — — — L+R+M
13 1 1 0 1 — L + M R + M L+R+M
14 1 1 1 0 — L + M R + M —
15 1 1 1 1 MUTE MUTE MUTE MUTE
Table 9. Output Modes
MVOL/LVOL/RVOL
B4 B3 B2 B1 B0
GAIN (dB)
1 0 0 0 0 -23
1 0 0 0 1 -21
1 0 0 1 0 -19
1 0 0 1 1 -17
1 0 1 0 0 -15
1 0 1 0 1 -13
1 0 1 1 0 -11
1 0 1 1 1 -9
MVOL/LVOL/RVOL
B4 B3 B2 B1 B0
GAIN (dB)
1 1 0 0 0 -7
1 1 0 0 1 -6
1 1 0 1 0 -5
1 1 0 1 1 -4
1 1 1 0 0 -3
1 1 1 0 1 -2
1 1 1 1 0 -1
1 1 1 1 1 0
Table 7. Volume Control Settings (continued)
Table 9 shows how each of the three internal signals,
left (L), right (R), and mono (M), are mixed and routed to the various outputs.
— = Amplifier off, R = Right signal
L = Left signal, M = Mono signal