- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385486 > LM4838 (National Semiconductor Corporation) Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain PDF資料下載
參數(shù)資料
| 型號(hào)： | LM4838 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain |
| 中文描述： | 立體聲2W的音頻功率放大器直流音量控制及可選擇增益 |
| 文件頁(yè)數(shù)： | 6/36頁(yè) |
| 文件大?。?/td> | 2085K |
| 代理商： | LM4838 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)當(dāng)前第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)
Electrical Characteristics for Bridged Mode Operation
(Notes 7, 10) (Continued)
Note 16:
All bumps have the same thermal resistance and contribute equally when used to lower thermal resistance. The LM4838ITL demo board (views featured
in the
Application Information
section) is a four layer board with two inner layers. The second inner layer is a V
DD
plane with the bottom outside layer a GND plane.
The planes measure 1,900mils x 1,750mils (48.26mm x 44.45mm) and aid in spreading heat due to power dissipation within the IC.
Typical Application
Truth Table for Logic Inputs
(Note 17)
Gain
Sel
0
0
0
0
1
1
1
1
X
X
Mode
Headphone
Sense
0
1
0
1
0
1
0
1
X
X
Mute
Shutdown Output Stage Set To
DC Volume
Output Stage
Configuration
BTL
SE
BTL
SE
BTL
SE
BTL
SE
Muted
X
0
0
1
1
0
0
1
1
X
X
0
0
0
0
0
0
0
0
1
X
0
0
0
0
0
0
0
0
0
1
Internal Gain
Internal Gain
Internal Gain
Internal Gain
External Gain
External Gain
External Gain
External Gain
Muted
Shutdown
Fixed
Fixed
Adjustable
Adjustable
Fixed
Fixed
Adjustable
Adjustable
X
X
Note 17:
If system beep is detected on the Beep In pin, the system beep will be passed through the bridged amplifier regardless of the logic of the Mute and HP
sense pins.
20013303
FIGURE 2. Typical Application Circuit ( LQ Package Pinout )
L
www.national.com
6
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4838LQ | Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain |
| LM4838MT | Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain |
| LM4838MTE | Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain |
| LM4838ITL | Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain |
| LM4838ITLX | Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4838BULN E WAF | 制造商:Texas Instruments 功能描述: |
| LM4838GR | 功能描述:IC AMP AUDIO PWR 2.2W 49UARRAY RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4838ITL | 制造商:Texas Instruments 功能描述:AMP AUDIO STEREO 2.2W SMD 4838 |
| LM4838ITL/NOPB | 功能描述:IC AMP AUDIO PWR 2.2W 36USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4838ITLX | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。