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參數(shù)資料
| 型號： | MAX9761 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux |
| 中文描述： | 立體聲、3W音頻功率放大器，帶有耳機驅(qū)動及輸入復(fù)用器 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 537K |
| 代理商： | MAX9761 |
M
500mW, Low EMI, Filterless,
Class D Audio Amplifier
_______________________________________________________________________________________
9
spread over a bandwidth that increases with frequency.
Above a few MHz, the wideband spectrum looks like
white noise for EMI purposes (Figure 3).
External Clock Mode
The SYNC input allows the MAX9712 to be synchro-
nized to a system clock (allowing a fully synchronous
system), or allocating the spectral components of the
switching harmonics to insensitive frequency bands.
Applying an external TTL clock of 800kHz to 2MHz to
SYNC synchronizes the switching frequency of the
MAX9712. The period of the SYNC clock can be ran-
domized, enabling the MAX9712 to be synchronized to
another MAX9712 operating in SSM mode.
Filterless Modulation/Common-Mode Idle
The MAX9712 uses Maxim’s unique, patented modula-
tion scheme that eliminates the LC filter required by
traditional class D amplifiers, improving efficiency,
reducing component count, conserving board space
and system cost. Conventional class D amplifiers out-
put a 50% duty cycle square wave when no signal is
present. With no filter, the square wave appears across
Figure 1. MAX9712 Outputs with an Input Signal Applied
OUT+
OUT-
V
IN-
V
IN+
V
OUT+
- V
OUT-
t
ON(MIN)
t
SW
SYNC INPUT
GND
FLOAT
V
DD
Clocked
MODE
FFM with f
S
= 1100kHz
FFM with f
S
= 1450kHz
SSM with f
S
= 1220kHz
±
120kHz
FFM with f
S
= external clock frequency
Table 1. Operating Modes
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX9762 | Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux |
| MAX9763 | Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux |
| MAX9717AEUA | Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers |
| MAX9717AETA | Circular Connector; No. of Contacts:55; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:23; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:23-55 RoHS Compliant: No |
| MAX9717AEBL-T | Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9761ETI | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9761ETI+ | 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9761ETI+T | 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9761ETI-T | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9761EUI | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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