參數(shù)資料
| 型號： | ISL76120ARTZ-T |
| 廠商： | Intersil |
| 文件頁數(shù)： | 12/13頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MULTIPLEXER DUAL SPDT 10TDFN |
| 標準包裝： | 6,000 |
| 功能： | 多路復用器 |
| 電路： | 2 x SPDT |
| 導通狀態(tài)電阻： | 10 歐姆 |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 5.5 V |
| 電流 - 電源： | 20nA |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-VFDFN 裸露焊盤 |
| 供應商設備封裝： | 10-TDFN/MLP（3x3） |
| 包裝： | 帶卷 (TR) |
8
FN6711.2
December 23, 2013
Application Block Diagram
Detailed Description
The ISL76120 device is a dual single pole/double throw
(SPDT) analog switch that operates from a single DC power
supply in the range of 2.7V to 5.5V. It was designed to
function as a dual 2-to-1 multiplexer to select between a
USB high-speed transceiver and a USB full-speed
transceiver in automotive applications. It is offered in a
TDFN package for use in automotive Portable Media Player
docking stations and Apple iPod type players. The device
has an enable pin to open all switches.
The part consists of two full speed (FSx) switches and two
high speed (HSx) switches. The FSx switches can swing
from 0V to VDD. They were designed to pass USB
full speed (12Mbps) differential data signals with minimal
distortion. The HSx switches have high bandwidth and low
capacitance to pass USB high-speed (480Mbps) differential
data signals with minimal edge and phase distortion.
The ISL76120 was designed for automotive USB
applications such as docking stations for Portable Media
Players and other general purpose USB connections that
have both high-speed and full-speed transceivers and need
to multiplex between these USB sources to a single USB
host (computer). A typical application block diagram of this
functionality is shown on page 8.
A detailed description of the two types of switches are
provided in the following sections.
FSx Switches (FSD1, FSD2)
The two FSx switches (FSD1, FSD2) are bidirectional
switches that can pass rail-to-rail signals. They were
specifically designed to pass USB full-speed (12Mbps)
differential signals and meet the USB 2.0 full-speed signal
quality specifications. See Figure 8.
The FSx switches can also pass USB high speed signals
(480Mbps) but do not quite meet the USB 2.0 high speed
signal quality eye diagram compliance requirement.
The maximum signal range for the FSx switches is from -1V
to VDD. The signal voltage should not be allowed to exceed
the VDD voltage rail or go below ground by more than -1V.
When operated with a 2.7V to 3.6V supply, the FSx switches
are active (turned ON) whenever the IN logic control voltage
is ≤0.5V and the EN logic voltage ≥1.4V.
HSx Switches (HSD1, HSD2)
The two HSx switches (HSD2, HSD1) are bi-directional
switches that can pass rail-to-rail signals. The on-resistance
is low and well matched between the HSD1 and HSD2
switches over the USB high speed signal range, ensuring
minimal impact by the switches to USB high speed signal
transitions. As the signal level increases, the rON switch
resistance increases.
The HSx switches were specifically designed to pass USB
2.0 high-speed (480Mbps) differential signals typically in the
range of 0V to 400mV. They have low capacitance and high
bandwidth to pass the USB high-speed signals with
minimum edge and phase distortion to meet USB 2.0 high
The HSx switches can also pass USB full-speed signals
(12Mbps) with minimal distortion and meet all the USB
requirements for USB 2.0 full-speed signaling. See Figure 11.
PORTABLE MEDIA DEVICE
ISL76120
USB
TRANSCEIVER
HIGH-SPEED
U
S
B
CON
N
E
C
T
O
R
COMD1
COMD2
IN
GND
HSD1
HSD2
FSD1
FSD2
VDD
EN
LOGIC CIRCUITRY
CONTROLLER
4M
Ω
USB
TRANSCEIVER
FULL-SPEED
VBUS
D-
D+
GND
3.3V
ISL76120
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相關代理商/技術參數(shù) |
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| ISL76120ARTZ-TR5303 | 制造商:Intersil Corporation 功能描述: |
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| ISL76161AVZ | 功能描述:IC 12-BIT HS D/A 28-TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1,000 系列:- 設置時間:1µs 位數(shù):8 數(shù)據(jù)接口:串行 轉換器數(shù)目:8 電壓電源:雙 ± 功率耗散（最大）:941mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC W 包裝:帶卷 (TR) 輸出數(shù)目和類型:8 電壓，單極 采樣率（每秒）:* |
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