LM4949TLEVAL National Semiconductor, LM4949TLEVAL Datasheet - Page 34

• Manufacturer Part Number: LM4949TLEVAL
• Description: BOARD EVALUATION LM4949TL
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM4949TLEVAL

• Amplifier Type: Class D
• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.5W x 2 @ 4 Ohm; 190mW x 2 @ 16 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM4949
• Lead Free Status / RoHS Status: Not applicable / Not applicable

www.national.com
Single-Ended Input
The left and right stereo inputs of the LM4949 can be config-
ured 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
INPUT MODE
0
1
2
3
L1_INSEL
0
0
1
1
L2_INSEL
0
1
0
1
FIGURE 6. Single-Ended Input Configuration
TABLE 4. Single-Ended Stereo Input Modes
Single-ended input. RIN+ mixed with RIN- and LIN+ mixed with LIN-
34
Single-ended input. RIN+ and LIN+ selected
Single-ended input. RIN- and LIN- selected
= 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.
Fully Differential Input Mode
INPUT DESCRIPTION
202001c9