- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄30755 > LM4889ITLX/NOPB (NATIONAL SEMICONDUCTOR CORP) 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 PDF資料下載
參數(shù)資料
| 型號(hào)： | LM4889ITLX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
| 封裝： | MICRO SMD-8 |
| 文件頁數(shù)： | 8/9頁 |
| 文件大?。?/td> | 656K |
| 代理商： | LM4889ITLX/NOPB |
LA72914V
No.A1859-8/9
[De-modulation block]
Demodulate audio signal from modulated audio signal.
FM-Audio signal is input from pin5. Go through 4.5M-Trap-filter or 6.5MHz-Trap-filter and AGC go to demodulator. After
demodulator go to De-emphasis circuit. After de-emphasis circuit signal is output pin7. Pin7 signal is charge to DC bias for
coupling capacitor at pin8. Audio signal from pin8 go to 6dB AMP then output from pin9. (Door-phone application, there are two
FM carrier. In this case we recommend add BPF before pin5 FM-Audio signal input.)
4.5M/6.5MHz-Trap-filter: Internal Trap-filter is change for pin6 mode control. (If modulator frequency is 4.5MHz, then internal
Trap-filter is 4.5MHz.)
AGC: After AGC level is control about 0.3Vp-p. After AGC signal go to pin12 FM-monitor and de-modulator.
De-emphasis circuit: The pin7 owns an De-emphasis characteristic which connected capacitor. Recommended value = 10nF.
Output signal level: If input FM signal deviation is ±25 kHz, then output signal level is 1Vp-p (TYP) from pin9/ (Load resistance:
10k
Ω at 1 kHz.)
Characteristics
Frequency responce TxIn-RxOut
-15
-9
-6
-3
-12
3
0.01
0.1
10
1
100
0
400
800
200
600
10
100
1000
1500
1000
500
400
500
300
200
ALC characteristics
0
2000
0
100
600
1200
FMAGC characteristics
1
10000
2500
Input level, [mVp-p]
Internal
level
of
IC,
[mVp-p]
1000
Pin 16
6dB
Pin 9
ALC
Output
level,
[mVp-p]
Input level, [mVp-p]
fo=4.5MHz
(unmodulated signals)
Pin 12
Output
level,
[dB]
Frequency, [kHz]
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4889LD/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| LM4890LD/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10 |
| LM4890IBPX/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
| LM4890IBP/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
| LM4890ITL/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4889LD/NOPB | 功能描述:IC AMP AUDIO PWR 1W MONO 10LLP 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) |
| LM4889MA | 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 |
| LM4889MA /NOPB | 制造商:Texas Instruments 功能描述:Audio Amp Speaker 1-CH Mono 1W Class-AB 8-Pin SOIC N Rail |
| LM4889MA/NOPB | 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 |
| LM4889MAX | 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。