- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄16817 > NCP2890EVB (ON Semiconductor)EVAL BOARD FOR NCP2890 PDF資料下載
參數(shù)資料
| 型號(hào)： | NCP2890EVB |
| 廠商： | ON Semiconductor |
| 文件頁(yè)數(shù)： | 4/16頁(yè) |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR NCP2890 |
| 設(shè)計(jì)資源： | NCP2890 Demo Board BOM NCP2890EVB Design Resources NCP2890 Demo Board Schematic |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 放大器類(lèi)型： | AB 類(lèi) |
| 輸出類(lèi)型： | 1-通道（單聲道） |
| 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： | 1.08W x 1 @ 8 歐姆 |
| 電源電壓： | 2.2 V ~ 5.5 V |
| 板類(lèi)型： | 完全填充 |
| 已用 IC / 零件： | NCP2890 |
| 已供物品： | 板 |
| 其它名稱(chēng)： | NCP2890EVBOS |
第1頁(yè)第2頁(yè)第3頁(yè)當(dāng)前第4頁(yè)第5頁(yè)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)
NCP2890, NCV2890
http://onsemi.com
12
GainSetting Resistor Selection (Rin and Rf)
Rin and Rf set the closedloop gain of the amplifier.
In order to optimize device and system performance, the
NCP2890 should be used in low gain configurations.
The low gain configuration minimizes THD + noise
values and maximizes the signal to noise ratio, and the
amplifier can still be used without running into the
bandwidth limitations.
A closed loop gain in the range from 2 to 5 is
recommended to optimize overall system performance.
An input resistor (Rin) value of 22 k
W is realistic in most
of applications, and doesn’t require the use of a too large
capacitor Cin.
Input Capacitor Selection (Cin)
The input coupling capacitor blocks the DC voltage at
the amplifier input terminal. This capacitor creates a
highpass filter with Rin, the cutoff frequency is given by
fc
+
1
2*
P *Rin *Cin
.
The size of the capacitor must be large enough to couple
in low frequencies without severe attenuation. However a
large input coupling capacitor requires more time to reach
its quiescent DC voltage (Vp/2) and can increase the
turnon pops.
An input capacitor value between 0.1
m and 0.39 mF
performs well in many applications (With Rin = 22 K
W).
Bypass Capacitor Selection (Cby)
The bypass capacitor Cby provides halfsupply filtering
and determines how fast the NCP2890 turns on.
This capacitor is a critical component to minimize the
turnon
pop.
A
1.0
mF bypass capacitor value
(Cin = < 0.39
mF) should produce clickless and popless
shutdown transitions. The amplifier is still functional with
a 0.1
mF capacitor value but is more susceptible to “pop and
click” noises.
Thus, a 1.0
mF bypassing capacitor is recommended.
Figure 37. Schematic of the Demonstration Board of the 9Pin FlipChip CSP Device
+
+
Vp
INM
Vp
300 k
W
300 k
W
8
W
OUTA
OUTB
20 k
W
20 k
W
INP
BYPASS
20 k
W
1
mF
390 nF
VM
VM_P
SHUTDOWN
CONTROL
C3
1
mFC1
SHUTDOWN
R2
C2
AUDIO
INPUT
Vp
R3
20 k
W
R4*
R1
100 k
W
C4*
* R4, C4: Not Mounted
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| V150B36E150BF3 | CONVERTER MOD DC/DC 36V 150W |
| 1812R-823J | INDUCTOR UNSHIELDED 82UH SMD |
| RBA10DRMT-S288 | CONN EDGECARD 20POS .125 EXTEND |
| 7-1624108-4 | INDUCTOR 1.5NH 700MA 0402 |
| V150B36E150BF2 | CONVERTER MOD DC/DC 36V 150W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP2890FCT1 | 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:1.0 Watt Audio Power Amplifier |
| NCP2892 | 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:1.3 Watt Audio Power Amplifier with Fast Turn On Time |
| NCP2892AEVB | 功能描述:音頻 IC 開(kāi)發(fā)工具 NCP2892AEVB RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類(lèi)型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| NCP2892AFCT2G | 功能描述:音頻放大器 ANA BUMP MONO PWR AMP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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 |
| NCP2892BEVB | 功能描述:BOARD EVAL NCP2892B RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 音頻放大器 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。