Datasheet LM4938MH - National Semiconductor Даташит усилитель, стерео, 1 Вт, SMD, 4938, TSSOP28 — Даташит
Наименование модели: LM4938MH
![]() 24 предложений от 16 поставщиков Микросхема Усилитель типа AB, Audio Amp Headphone/Speaker 2CH Stereo 2.2W Class-AB 28Pin HTSSOP EP Rail | |||
LM4938MH Texas Instruments | 126 ₽ | ||
LM4938MH Texas Instruments | от 147 ₽ | ||
LM4938MH/NOPB Texas Instruments | от 254 ₽ | ||
LM4938MH/NOPB Texas Instruments | по запросу |
Подробное описание
Производитель: National Semiconductor
Описание: Усилитель, стерео, 1 Вт, SMD, 4938, TSSOP28
Краткое содержание документа:
LM4938 Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain
July 2005
LM4938 Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain
General Description
The LM4938 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4 (Note 1) with less than 1.0% THD or 2.2W into 3 (Note 2) with less than 1.0% THD.
Boomer ® audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4938 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications. The LM4938 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.
Спецификации:
- Количество каналов: 2
- Диапазон напряжения питания: 2.7 В ... 5.5 В
- THD + N: 0.05% @ 400 мВт, 8 Ом, VDD=5V
- Load Impedance: 3 Ом
- Amplifier Case Style: TSSOP
- Количество выводов: 28
- SVHC: No SVHC (15-Dec-2010)
- Тип корпуса: TSSOP
- Amplifier Type: Power
- Bandwidth: 20 кГц
- Семейство: 4938
- IC Generic Number: 4938
- Input Offset Voltage Max: 50mV
- Load Impedance Min: 3 Ом
- Количество логических функций: 4938
- Number of Amplifiers: 2
- Рабочий диапазон температрур: -20°C ... +85°C
- Output Power Pout: 1.3 Вт @ 8 Ом
- Power Rating RMS: 2.2 Вт
- Supply Voltage + Nom: 6 В
- Способ монтажа: SMD
RoHS: есть