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LM48823TL Datasheet(PDF) 11 Page - National Semiconductor (TI) |
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LM48823TL Datasheet(HTML) 11 Page - National Semiconductor (TI) |
11 / 20 page 300684e2 FIGURE 4. Example Write Sequence TABLE 2. Device Address B7 B6 B5 B4 B3 B2 B1 B0 R/W Chip Address 1 1 1 0 1 1 0 0 TABLE 3. Mode Control Registers Register Name B7 B6 B5 B4 B3 B2 B1 B0 Mode Control VOL4 VOL3 VOL2 VOL1 VOL0 0 ENABLE_A ENABLE_B GENERAL AMPLIFIER FUNCTION The LM48823 is a ceramic speaker driver that utilizes National’s inverting charge pump technology to deliver over 15V P-P to a 2.2µF ceramic speaker while operating from a single 4.2V supply. The LM48823 features a unique input stage that converts two single-ended audio signals into a mono BTL output. This stereo to mono conversion is useful in applications where a stereo audio source is driving a single ceramic speaker, such as a ringer on a cellular phone. Connect INA and INB as shown in Figure 5 for the stereo-to-mono conversion. When the LM48823 is used with a single-ended mono audio source, connect both INA and INB to the audio source as shown in Figure 6. 300684e4 FIGURE 5. Stereo to Mono Conversion Connection Example 300684e3 FIGURE 6. Mono Audio Source Connection Example 11 www.national.com |
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Similar Description - LM48823TL |
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