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LM4949 데이터시트(PDF) 34 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
부품명 LM4949
상세설명  Stereo Class D Audio Subsystem with OCL Headphone Amplifier
PDF  40 Pages
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제조업체  NSC [National Semiconductor (TI)]
홈페이지  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4949 데이터시트(HTML) 34 Page - National Semiconductor (TI)

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Application Information (Continued)
Single-Ended Input
The left and right stereo inputs of the LM4949 can be con-
figured for single-ended sources (Figure 6). In single-ended
input mode, the LM4949 can accept up to 4 different single-
ended audio sources. Set bits L1_INSEL = 1 and L2_INSEL
= 0 to use the RIN+ and LIN+ inputs. Set L1 _INSEL = 0 and
L2_INSEL = 1 to use the RIN- and LIN- inputs. Set
L1_INSEL = L2_INSEL = 1 to use both input pairs. Table 4
shows the single ended input combinations.
TABLE 4. Single-Ended Stereo Input Modes
INPUT MODE
L1_INSEL
L2_INSEL
INPUT DESCRIPTION
0
0
0
Fully Differential Input Mode
1
0
1
Single-ended input. RIN- and LIN- selected
2
1
0
Single-ended input. RIN+ and LIN+ selected
3
1
1
Single-ended input. RIN+ mixed with RIN- and LIN+ mixed with LIN-
202001C9
FIGURE 6. Single-Ended Input Configuration
www.national.com
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