lm49350rl National Semiconductor Corporation, lm49350rl Datasheet - Page 46

• Manufacturer Part Number: lm49350rl
• Description: High Performance Audio Codec Sub-system With A Ground-referenced Stereo Headphone Amplifier & An Ultra Low Emi Class D Loudspeaker Amplifier With Dual I2s/pcm Digital Audio Interfaces
• Manufacturer: National Semiconductor Corporation

www.national.com
Bits
5:0
6
7
AUX_R_LEVEL This programs the right AUX input level. All gain changes are performed at zero crossings.
FROM_LINE_R If set, the RIGHT_MIC/LINE differential input is routed to the AUX_R input amplifier for line level volume
DIFF_MODE
Field
control. This bit overrides the DIFF_MODE (bit 7) setting.
If set, the stereo single-ended inputs AUX_L and AUX_R convert to a mono differential input pair MONO_IN
+ and MONO_IN-.
(MONO_IN+) - (MONO_IN-) is routed to the AUX_L input amplifier.
(MONO_IN-) - (MONO_IN+) is routed to the AUX_R input amplifier.
(unless overriden by the respective FROM_LINE bits).
AUX_R_LEVEL
000000
000001
000010
000011
000100
000101
000110
000111
001000
001001
001010
001011
001100
001101
001110
001111
010000
010001
010010
010011
010100
010101
010110
010111
011000
011000
011001
011010
011100
011101
011110
011111
TABLE 26. AUX_R_INPUT (0x19h)
–46.5dB
–43.5dB
–40.5dB
–37.5dB
–34.5dB
–31.5dB
–28.5dB
–25.5dB
–22.5dB
–19.5dB
–16.5dB
–13.5dB
–10.5dB
–7.5dB
–4.5dB
–1.5dB
–45dB
–42dB
–39dB
–36dB
–33dB
–30dB
–27dB
–24dB
–21dB
–18dB
–15dB
–12dB
Level
–9dB
–6dB
–3dB
0dB
46
Description
AUX_R_LEVEL
000000
100001
100010
100011
100100
100101
100110
100111
101000
101001
101010
101011
101100
101101
101110
101111
110000
110001
110010
110011
110100
110101
110110
110111
111000
111001
111010
111011
111100
111101
111110
111111
10.5dB
1.5dB
4.5dB
7.5dB
Level
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
12dB
3dB
6dB
9dB