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参数资料
| 型号： | ISL54417IRUZ-T |
| 厂商： | Intersil |
| 文件页数： | 14/14页 |
| 文件大小： | 0K |
| 描述： | IC USB SWITCH DUAL SPDT 10UTQFN |
| 标准包装： | 3,000 |
| 功能： | USB 开关 |
| 电路： | 2 x SPDT |
| 导通状态电阻： | 9 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-UFQFN |
| 供应商设备封装： | 10-UTQFN（2.1x1.6） |
| 包装： | 带卷 (TR) |
9
FN6318.1
June 27, 2006
Application Block Diagram
Detailed Description
The ISL5441X family of devices are dual single pole/double
throw (SPDT) analog switches that operate from a single
power supply. They were designed to function as dual 2 to 1
multiplexers to select between USB differential data signals
and mono Audio/Composite Video Broadcast System
(CVBS). They come in tiny TQFN package for use in digital
cameras, camcorders, video MP3 players, PDAs,
cellphones, and other personal media players.
All devices in this family consist of two 1
Ω normally closed
(NC) Audio/Video switches and two 5
Ω normally open (NO)
USB switches. The audio/video switches can accept signals
that swing below ground. They were designed to pass
ground reference audio or DC-restored with synch
composite video signals with minimal distortion. The USB
switches were designed to pass full-speed USB differential
data signals with minimal edge and phase distortion.
The ISL54415 and ISL54416 were specifically designed for
digital cameras, camcorders, MP3 players, cellphones and
other personal media player applications that need to
combine the audio/video jacks and the USB data connector
into a single shared connector, thereby saving space and
component cost. A typical application block diagram of this
functionality is shown above. The ISL54415 and ISL54416
incorporate circuitry for the detection of the USB VBUS
voltage, which is used to switch between the audio/video
drivers and USB transceiver of media player. The ISL54415
contains additional circuitry to generate the required USB
VTERM of 3.3V for use with the USB speed setting pull-up
resistor.
The ISL54417 is an audio/video and data switch who’s logic
control is typical of a standard dual SPDT device.
A detailed description of the two types of switches and of
each part type in the ISL5441X family are provided in the
following sections. The digital data transmission (USB, etc.)
and audio/video playback are intended to be mutally
exclusive operations.
NC1 and NC2 Audio/Video Switches
The two NC (normally closed) audio/video switches (NC1,
NC2) are 1
Ω high bandwidth switches that can pass signals
that swing below ground by as much as 1.5V. They were
design to pass ground reference audio signals and
DC-restored Composite Video Broadcast System (CVBS)
including negative synchronizing pulse with minimal
insertion loss and very low distortion and degradation.
The -3dB bandwidth into 50
Ω is 394MHz and into 75Ω is
264MHz. Crosstalk between NC1 and NC2 @ 4MHz is
-60dB which allows composite video to be routed through
one switch and mono-audio through the other switch with
little interference.
The recommended maximum signal range is from -1.5V to
1.5V. You can apply positive signals greater than 1.5V but
the RON resistance of the switch increases rapidly above
1.5V. The signal should not be allowed to exceed the VDD
rail or swing more negative than -1.5V.
Over a signal range of ±1V these switches have an
extremely low RON flatness. They can pass a ground
referenced audio signal with very low distortion (<0.007%
THD+N) when delivering 12mW into a 32
Ω headphone
speaker load. See Figures 10 and 11 THD+N performance
curves.
Figures 8 and 9 show the vector scope plots of a standard
NTSC color bar signal at both the input (Figure 8) and output
(Figure 9) of the ISL54415. The plots show that except for a
little attentuation, due to switch RON and test fixture cabling,
there is virtually no degradation of the video waveform
through the switch.
ISL54415
USB
TRANSCEIVER
FULL-SPEED
AUDIO
USB
AND
AUDIO/V
IDEO
J
ACK
COM1
COM2
VBUS
GND
NO1
NO2
NC1
NC2
VDD
VTERM
NTSC OR PAL
VIDEO
D-
D+
ISL54415, ISL54416, ISL54417
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL54500 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:+1.8V to +5.5V, 5ヘ, Single SPDT Analog Switch |
| ISL54500IHZ-T | 功能描述:IC SWITCH SPDT SGL SOT23-6 RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 标准包装:2,500 系列:- 功能:视频交叉点开关 电路:1 x 8:6 导通状态电阻:- 电压电源:单电源 电压 - 电源，单路/双路(±):3.135 V ~ 5.25 V 电流 - 电源:55mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:24-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:24-TSSOP 包装:带卷 (TR) 产品目录页面:1214 (CN2011-ZH PDF) 其它名称:FMS6502MTC24XTR |
| ISL54500IRUZ-T | 功能描述:IC SWITCH SPDT SGL 6UTDFN RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 标准包装:2,500 系列:- 功能:视频交叉点开关 电路:1 x 8:6 导通状态电阻:- 电压电源:单电源 电压 - 电源，单路/双路(±):3.135 V ~ 5.25 V 电流 - 电源:55mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:24-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:24-TSSOP 包装:带卷 (TR) 产品目录页面:1214 (CN2011-ZH PDF) 其它名称:FMS6502MTC24XTR |
| ISL54501 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:+1.8V to +5.5V, 5OHM, Single SPST Analog Switches |
| ISL54501IHZ-T | 功能描述:IC SWITCH SPDT SOT23-6 RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:36 系列:- 功能:多路复用器 电路:2 x 4:1 导通状态电阻:75 欧姆 电压电源:单/双电源 电压 - 电源，单路/双路(±):2 V ~ 12 V，±2 V ~ 6 V 电流 - 电源:- 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 供应商设备封装:20-SOIC W 包装:管件 |
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