参数资料
| 型号： | NCP2809BDMR2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 14/24页 |
| 文件大小： | 0K |
| 描述： | IC AMP STEREO AUD 135ME MICRO-10 |
| 产品变化通告： | LTB Notification 03/Jan/2008 |
| 标准包装： | 4,000 |
| 系列： | NOCAP™ |
| 类型： | AB 类 |
| 输出类型： | 耳机，2-通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 135mW x 2 @ 16 欧姆 |
| 电源电压： | 2.2 V ~ 5.5 V |
| 特点： | 消除爆音，短路保护和热保护，关闭 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 10-微型 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
NCP2809 Series
http://onsemi.com
21
Table 1. Bill of Material Micro10
Item
Part Description
Ref.
PCB
Footprint
Manufacturer
Reference
1
NCP2809 Audio Amplifier
U1,U3
Micro10
ON Semiconductor
NCP2809
2
SMD Resistor 100 KW
R1,R2
0805
VishayDraloric
D12CRCW Series
3
Ceramic Capacitor 390 nF 50 V Z5U
C2,C4,
C6,C8
1812
Kemet
C1812C394M5UAC
4
Ceramic Capacitor 1.0 mF 16 V X7R
Optimized Performance
C1,C3,
C5,C7
1206
Murata
GRM426X7R105K16
5
Tantalum Capacitor 220 mF 10 V
C9,C10
Kemet
T495X227010AS
6
I/O Connector. It can be plugged by
BLZ5.08/2 (Weidmüller Reference)
J4,J10
Weidmüller
SL5.08/2/90B
7
I/O Connector. It can be plugged by
BLZ5.08/3 (Weidmüller Reference)
J2,J3,
J8,J9
Weidmüller
SL5.08/3/90B
8
3.5 mm PCB Jack Connector
U2,U4
DecelectForgos
IES 1013
9
Jumper Header Vertical Mount
2*1, 2.54 mm
J1,J7
Table 2. Bill of Material UDFN10
Item
Part Description
Ref.
PCB Footprint
Manufacturer
Manufacturer Part Number
1
Stereo Headphone Amplifier
U1
UDFN10 3x3
ON Semiconductor
NCP2809B
2
Thick Film Chip Resistor
R1R5
0805
Vishay
CRCW08052022FNEA
3
Ceramic Chip Capacitor
C1,C2,C5,C7
0805
TDK
C2012X7R1C105K
4
PCB Header, 2 Poles
J5
NA
Phoenix
MSTBA 2,5/2G
5
SMB Connector
J1,J2,J8
NA
RS
RS 5463406
6
3.5 mm PCB Jack Connector
U2
NA
CUI Inc
SJ3515N
7
Short Connector
J14,J15
NA
8
Short Connector
J24,J25
NA
PCB LAYOUT GUIDELINES
How to Optimize the Accuracy of VMC
The main innovation of the NCP2809 stereo NOCAP
audio amplifier is the use of a virtual ground that allows
connecting directly the headset on the outputs of the device
saving DCblocking output capacitors. In order to have the
best performances in terms of crosstalk, noise and supply
current, the feedback connection on the virtual ground
amplifier is not closed internally. To reach this goal of
excellence, one must connect OUT_I and REF_I as close
as possible from the middle point of the output jack
connector. The most suitable place for this connection is
directly on the pad of this middle point.
How to Optimize THD+N Performances
To get the best THD+N level on the headset speakers, the
traces of the power supply, ground, OUT_R, OUT_L and
OUT_I need the lowest resistance. Thus, the PCB traces for
these nets should be as wide and short as possible.
You need to avoid ground loops, run digital and analog
traces parallel to each other. Due to its internal structure,
the amplifier can be sensitive to coupling capacitors
between Ground and each output (OUT_R, OUT_L and
OUT_I). Avoid running the output traces between two
ground layers or if traces must cross over on different
layers, do it at 90 degrees.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP2809BDMR2G | 功能描述:音频放大器 135mW Stereo Audio PWR Industrial Temp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| NCP2809BEVB | 功能描述:音频 IC 开发工具 ANA NCP2809B EVALBRD RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| NCP2809BGEVB | 功能描述:音频 IC 开发工具 RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| NCP2809BMUTXG | 功能描述:音频放大器 HEADSET AUDIO AMPLFR RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| NCP2811 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:NOCAP Advanced Stereo Headphone Amplifier |
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