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参数资料
| 型号： | ISL54212IRUZ-T |
| 厂商： | Intersil |
| 文件页数： | 14/15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： | 17.7 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 2.5 V ~ 5.5 V |
| 电流 - 电源： | 8µA |
| 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) |
8
FN6556.0
September 18, 2007
Application Block Diagram
Detailed Description
The ISL54212 device is a dual single pole/double throw
(SPDT) analog switch device that can operate from a single
DC power supply in the range of 2.5V to 5.5V. It was
designed to function as a dual 2 to 1 multiplexer to select
between USB differential data signals and audio L and R
stereo signals. It comes in tiny TQFN and TDFN packages
for use in MP3 players, PDAs, cell phones, and other
personal media players.
The part consists of two 3
Ω audio switches and two 5Ω USB
switches. The audio switches can accept signals that swing
below ground. They were designed to pass audio left and
right stereo signals, that are ground referenced, with minimal
distortion. The USB switches were designed to pass
high-speed USB differential data signals with minimal edge
and phase distortion.
The ISL54212 was specifically designed for MP3 players,
cell phones and other personal media player applications
that need to combine the audio headphone jack and the
USB data connector into a single shared connector, thereby
saving space and component cost. Typical application block
diagram of this functionality is shown above.
The ISL54212 has a single logic control pin (IN) that selects
between the audio switches and the USB switches. This pin
can be driven Low or High to switch between the audio
CODEC drivers and USB transceiver of the MP3 player or
cellphone. The ISL54212 also contains a logic control pin
(CTRL) that when driven Low while IN is High, opens all
switches and puts the part into a low power state, drawing
typically 1nA of IDD current.
A detailed description of the two types of switches is
provided in the sections following. The USB transmission
and audio playback are intended to be mutually exclusive
operations.
Audio Switches
The two audio switches (L, R) are 3
Ω switches that can pass
signals that swing below ground by as much as 1.5V. They
were designed to pass ground reference stereo signals with
minimal insertion loss and very low distortion. Crosstalk
between the audio switches over the audio band is < -110dB.
Over a signal range of ±1V (0.707Vrms) with VDD >2.7V,
these switches have an extremely low rON resistance
variation. They can pass ground referenced audio signals
with very low distortion (<0.06% THD+N) when delivering
15.6mW into a 32
Ω headphone speaker load. See Figures 8,
These switches are uni-directional switches. The audio
drivers should be connected at the L and R side of the switch
(pin 7 and pin 8) and the speaker loads should be connected
at the COM side of the switch (pin 3 and pin 4).
The audio switches are active (turned ON) whenever the IN
voltage is ≥1.4V and the CTRL voltage to ≥1.4V.
Note: Whenever the audio switches are ON the USB
transceivers need to be in the high impedance.
USB Switches
The two USB switches (D+, D-) are bidirectional switches
that can pass rail-to-rail signals. When powered with a 3.6V
supply these switches have a nominal r(ON) of 4.6Ω over the
ISL54212
USB
TRANSCEIVER
HIGH-SPEED
CODEC
COM-
COM+
IN
GND
D-
D+
L
R
VDD
CTRL
CONTROLLER
4M
Ω
50k
Ω
50k
Ω
LOGIC CONTROL VIA MICRO-PROCESSOR
VBUS
LOGIC CIRCUITRY
US
B
AND
HE
A
D
P
H
ONE
JACK
ISL54212
相关PDF资料 |
PDF描述 |
|---|---|
| ISL54206AIRUZ-T | IC USB SWITCH DUAL SPDT 10UTQFN |
| VE-B63-IW | CONVERTER MOD DC/DC 24V 100W |
| VE-B60-IW | CONVERTER MOD DC/DC 5V 100W |
| ISL54205BIRUZ-T | IC USB SWITCH DUAL SPDT 10UTQFN |
| ISL54206IRUZ-T | IC SWITCH MP3/USB2.0 HS 10-TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL54213 | 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 and Mute Function |
| ISL54213IRTZ | 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:- 其它有关文件:STG4159 View All Specifications 标准包装:5,000 系列:- 功能:开关 电路:1 x SPDT 导通状态电阻:300 毫欧 电压电源:双电源 电压 - 电源，单路/双路(±):±1.65 V ~ 4.8 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:7-WFBGA，FCBGA 供应商设备封装:7-覆晶 包装:带卷 (TR) |
| ISL54213IRTZ-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 |
| ISL54213IRUZ-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 |
| ISL54214 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:USB 2.0 High-Speed x 2 Channels/Stereo Audio Dual SP3T Dual 3-to-1 Multiplexer |
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