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参数资料
| 型号： | ISL54209IRTZ |
| 厂商： | INTERSIL CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | MP3/USB 2.0 High Speed Switch with Negative Signal Handling and Low Power Shutdown |
| 中文描述： | 1-CHANNEL, SGL POLE DOUBLE THROW SWITCH, PDSO10 |
| 封装： | 3 X 3 MM, ROHS COMPLIANT, PLASTIC, MO-229WEED-3, TDFN-10 |
| 文件页数： | 10/15页 |
| 文件大小： | 718K |
| 代理商： | ISL54209IRTZ |
10
FN6627.0
December 20, 2007
(right) 2.5
Ω
audio switches are ON and the D- and D+ 5
Ω
switches are OFF (high impedance).
When nothing is plugged into the common connector or a
headphone is plugged into the common connector, the
μprocessor will sense that there is no voltage at the V
BUS
pin of the connector and will drive and hold the IN control pin
of the ISL54209 low. As long as the CTRL = Logic “1,” the
ISL54209 part will be in the audio mode and the audio
drivers of the media player can drive the headphones and
play music.
USB Mode
If the IN pin = Logic “1” and CTRL pin = Logic “0” or Logic
“1”, the part will go into USB mode. In USB mode, the D- and
D+ 5
Ω
switches are ON and the L and R 2.5
Ω
audio
switches are OFF (high impedance).
When a USB cable from a computer or USB hub is
connected at the common connector, the μprocessor will
sense the presence of the 5V V
BUS
and drive the IN pin
voltage high. The ISL54209 part will go into the USB mode.
In USB mode, the computer or USB hub transceiver and the
MP3 player or cell phone USB transceiver are connected
and digital data will be able to be transmitted back and forth.
When the USB cable is disconnected, the μprocessor will
sense that the 5V VBUS voltage is no longer connected and
will drive the IN pin low and put the part back into the Audio
or Low Power Mode.
Low Power Mode
If the IN pin = Logic “0” and CTRL pin = Logic “0”, the part
will be in the Low Power mode. In the Low Power mode, the
audio switches and the USB switches are OFF (high
impedance). In this state, the device draws typically 1nA of
current.
In Low Power mode, the off-isolation and crosstalk between
switch cells is minimal for negative swinging signals. Care
should be taken to avoid negative swinging signals in this
mode of operation. In typical applications, the Low Power
state will be applied to the ISL54209 part when the portable
media player is in its sleep or hibernate mode to conserve
battery power. In the sleep mode, no audio or USB signals
are applied to the part.
USING THE COMPUTER V
BUS
VOLTAGE TO DRIVE THE
“IN” PIN
External IN Pull-Down Resistor
Rather than using a micro-processor to control the IN logic
pin, one can directly drive the IN pin using the V
BUS
voltage
from the computer or USB hub.
When a headphone or nothing is connected at the common
connector, the internal 4
Ω
pull-down will pull the IN pin low
putting the ISL54209 in the Audio mode or Low Power
mode, depending on the condition of the CTRL pin.
When a USB cable is connected at the common connector,
the voltage at the IN pin will be driven to 5V and the part will
automatically go into the USB mode.
When the USB cable is disconnected from the common
connector, the voltage at the IN pin will be pulled low by the
pull-down resistor and return to the Audio Mode or Low
Power Mode, depending on the condition of the CTRL pin.
Note: The voltage at the IN pin can exceed the VDD voltage
by as much as 2.55V when VDD
≤
3.6V. This allows the
VBUS voltage from a computer or USB hub (4.4V to 5.25V)
to drive the IN pin while the V
DD
voltage is in the range of
2.5V to 3.6V.
ISL54209
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相关代理商/技术参数 |
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|---|---|
| ISL54209IRTZ-T | 功能描述:IC USB SWITCH DUAL SPDT 10TDFN 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 |
| ISL54209IRU1Z-T | 功能描述:IC MP3/USB SWITCH SPDT DL 10TQFN 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 |
| ISL54209IRUZ-T | 功能描述:IC USB SWITCH DUAL SPDT 10UTQFN 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 |
| ISL54209IRUZ-T7A | 功能描述:电源开关 IC - USB MP3/USB 2.0 HI SPD S NEG SWING 10LD RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| ISL54210 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:MP3/USB 2.0 High Speed Switch with Negative Signal Handling/Click and Pop Suppression |
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