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LA6548ND
Overview
The LA6548ND is a
Functions and Features
■Four power amplifier (BTL connection) circuits
■Iomax: 0.7 A
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■Thermal shutdown circuit
■Package: DIP30SDLF (400 mil)
Block Diagram
VCC1 | 1 |
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| 30 | VCC2 |
| 2 |
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| - | 29 |
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MUTE |
| Muting (output on/off) |
| 15.4k | + | VREF | ||
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| 11k | 15.4k |
| 11k |
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VIN1 | 3 | - |
| - | 28 | VIN4 | ||
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| + |
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VG1 | 4 |
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| 27 | VG4 |
VO1+ | 5 |
| Level shifter | Level shifter |
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| 26 | VO4+ |
VO1- | 6 |
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| 25 | VO4- | ||
GND | 7 |
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| 24 | GND |
GND | 8 |
| - |
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| 23 | GND |
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| + |
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GND | 9 |
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| 22 | GND |
VO2- | 10 |
| Level shifter | Level shifter |
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| 21 | VO3- |
VO2+ | 11 |
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| 20 | VO3+ | ||
VG2 | 12 |
| 15.4k |
| 15.4k |
| 19 | VIN3G |
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| 11k |
| 11k |
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VIN2 | 13 | - |
| - | 18 | VIN3 | ||
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| + |
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14 | Collector connection for the |
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| 17 | CD | ||
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| external pnp transistor |
| RESET |
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15 |
| 3.3V REG |
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| 16 | RESET | ||
Base connection for the |
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| external pnp transistor |
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LA6548NHNH
Overview
The LA6548NH is a
Functions and Features
■Four power amplifier (BTL connection) circuits
■Iomax: 0.7 A
■
■
■
■Thermal shutdown circuit
■Package: HSOP28H (375 mil)
Block Diagram
VCC1 | 1 |
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| 28 | VCC2 |
| 2 |
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| - | 27 |
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MUTE | Muting (output on/off) |
| + | VREF | |||
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| 11k | 15.4k |
| 15.4k |
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| 11k |
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VIN1 | 3 |
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| 26 | VIN4 | ||
| - |
| - | ||||
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| + |
| + |
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VG1 | 4 |
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| 25 | VG4 |
VO1+ | 5 |
| Level shifter | Level shifter |
| 24 | VO4+ |
VO1- | 6 |
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| 23 | VO4- | ||
( NC ) | 7 |
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| 22 | ( NC ) |
| FR | GND | - |
| GND | FR |
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| + |
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( NC ) | 8 |
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| 21 | ( NC ) |
VO2- | 9 |
| Level shifter | Level shifter |
| 20 | VO3- |
VO2+ | 10 |
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| 19 | VO3+ | ||
VG2 | 11 |
| 15.4k |
| 15.4k | 18 | VG3 |
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| 11k |
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| 12 | - |
| 11k | 17 |
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VIN2 |
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| - | VIN3 | |||
| + |
| + | ||||
13 | Collector connection for the |
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| 16 | CD | ||
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| external pnp transistor |
| RESET |
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14 |
| 3.3V REG |
| 15 | RESET | ||
Base connection for the |
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| external pnp transistor |
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| 29 Car Audio | 30 Car Audio |
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