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PDF ISL54416 Data sheet ( Hoja de datos )
| Número de pieza | ISL54416 | |
| Descripción | (ISL54415 - ISL54417) Audio Switches | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ISL54416 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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Data Sheet
ISL54415, ISL54416, ISL54417
June 27, 2006
FN6318.1
Low Voltage, Dual SPDT, USB/CVBS/
Audio Switches with Negative Signal
Capability
The Intersil ISL54415, ISL54416, ISL54417 dual SPDT
(Single Pole/Double Throw) switches combine low distortion
audio/video and accurate USB 2.0 Full Speed data signal
switching in the same low voltage device. When operated with
a 2.5V to 3.6V single supply these analog switches allow
audio/video signal swings below-ground, allowing the use of a
common USB and audio/video connector in digital cameras,
camcorders and other portable battery powered Personal
Media Player devices.
The ISL54415 and ISL54416 incorporate circuitry for
detection of the USB VBUS voltage, which is used to switch
between the audio/video and USB signal source in the
portable device. In addition, the ISL54415 includes circuitry for
generation of a VTERM voltage of 3.3V for use with USB
speed setting pull-up resistor.
The ISL54415, ISL54416, ISL54417 are available in a tiny
10Ld 2.1mm x 1.6mm ultra-thin μTQFN package. They
operate over a temperature range of -40 to +85°C.
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
Application Block Diagram
VBUS
COM1
COM2
VDD
ISL54415
Features
• Low Distortion Negative Signal Capability
• Detection of VBUS Voltage on USB Cable (ISL54415 and
ISL54416)
• Generation of VTERM Voltage for USB D+/D- Pull-up
Resistor (ISL54415)
• Low Distortion Mono Audio Signal
- THD+N at 12mW into 32Ω Load . . . . . . . . . . . <0.007%
• Low Distortion Color Video Signal
- Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.04%
- Differential Phase. . . . . . . . . . . . . . . . . . . . . . . . . . 0.03°
• Cross-talk (4MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . -60dB
• 1.8V Logic Compatible (ISL54417)
• Single Supply Operation (VDD)
- ISL54415 and ISL54416 . . . . . . . . . . . . . . 2.5V to 3.6V
- ISL54417 . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8V to 5.5V
• Available in Ultra-thin μTQFN Package
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Digital Camera and Camcorders
• Video MP3 and other Personal Media Players
• Cellular/Mobile Phones
• PDA’s
• Audio/Video/USB Switching
VTERM
NO1
NO2
NC1
NC2
D- USB
FULL-SPEED
D+ TRANSCEIVER
NTSC OR PAL
VIDEO
AUDIO
GND
DataSheet4 U .com
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 page  
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ISL54415, ISL54416, ISL54417
Electrical Specifications - 2.7V to 5.5V Supply Test Conditions: VDD = +3.0V, GND = 0V, VBUSH = 3.8V, VBUSL = 3.2V,
VINH = 1.4V, VINL = 0.5V (Notes 4, 6), Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
TEMP (NOTE 5)
(NOTE 5)
(°C) MIN TYP MAX UNITS
RON Flatness, RFLAT(ON) (ISL54415 VDD = 3.6V, VBUS = 4.4V, ICOM = 40mA, VNOx = 0V to
25
-
0.8 1.9 Ω
and ISL54416 Only)
VBUS, (Note 7)
Full -
- 2.5 Ω
ON Resistance, RON
(ISL54417 Only)
VDD = 3.0V, VINx = 1.4V, ICOM = 40mA, VNOx = 0V to
25
-
7.5 9 Ω
3.0V, (See Figure 3)
Full -
- 9.5 Ω
RON Matching Between Channels, VDD = 3.0V, VINx = 1.4V, ICOM = 40mA, VNOx = Voltage 25 - 0.2 0.4 Ω
ΔRON
(ISL54417 Only)
at max RON, (Note 9)
Full -
- 0.45 Ω
RON Flatness, RFLAT(ON) (ISL54417 VDD = 3.0V, VIN = 1.4V, ICOM = 40mA, VNOx = 0V to 3.0V, 25 - 1.0 1.9 Ω
Only)
(Note 7)
Full -
- 2.5 Ω
OFF Leakage Current, INOx(OFF)
VDD = 3.6V, VBUS = 0V or VIN = 0.5V, VCOMx = 0.5V, 0V, 25
-5
1.5
5 μA
VNOx = 0V, 0.5V, VNCx = floating
Full -15 - 15 μA
ON Leakage Current, INOx(ON)
VDD = 3.6V, VBUS = 5.25V or VIN = 1.4V, VCOMx = 0.3V, 25
-30
5
30 μA
3.6V, VNOx = 0.3V, 3.6V, VNCx = floating
Full -35 - 35 μA
DYNAMIC CHARACTERISTICS
Turn-ON Time, tON
(ISL54417 Only)
VDD = 2.7V, VNOx or VNCx = 1.5V, RL = 300Ω, CL = 35pF, 25 - 40 - ns
(See Figure 1)
Full - 60 - ns
Turn-OFF Time, tOFF
(ISL54417 Only)
VDD = 2.7V, VNOx or VNCx = 1.5V, RL = 300Ω, CL = 35pF, 25 - 20 - ns
(See Figure 1)
Full - 40 - ns
Break-Before-Make Time Delay, tD VDD = 3.3V, VNOx or VNCx = 1.5V, RL = 300Ω, CL = 35pF, Full
-
8
- ns
(ISL54417 Only)
(See Figure 2)
Skew, tSKEW
Rise/Fall Time Mismatch, tM
Total Jitter, tJ
Propagation Delay, tPD
VDD = 3.0V, VBUS = 3.8V, RL = 39Ω, CL = 50pF, tR =
tF = 12ns at 12Mbps, (Duty Cycle = 50%) (See Figure 7)
VDD = 3.0V, VBUS = 3.8V, RL = 39Ω, CL = 50pF, tR =
tF = 12ns at 12Mbps, (Duty Cycle = 50%), (See Figure 6)
VDD =3.0V, VBUS = 3.8V, RL = 39Ω, CL = 50pF,
tR = tF = 12ns at 12Mbps
VDD = 3.0V, VBUS = 3.8V, RL = 39Ω, CL = 50pF,
(See Figure 7)
25
25
25
25
- 0.15 - ns
- 10 - %
- 1.6 - ns
- 0.9 - ns
Crosstalk (Channel-to-Channel),
NC2 to COM1, NC1 to COM2
RL = 75Ω, f = 4MHz, VNCx = 300mVP-P,
(See Figure 4 and Figure 17)
25 - -60 - dB
Differential Gain
Differential Phase
Total Harmonic Distortion
NCx (Audio/Video) Switch -3dB
Bandwidth
VIN = 300mVP-P, VOFFSET = 0V to 0.7V, f = 3.58MHz and
4.43MHz, RL = 50, See Figure 15 and Figure 16)
VIN = 300mVP-P, VOFFSET = 0V to 0.7V, f = 3.58MHz and
4.43MHz, RL = 50, See Figure 15 and Figure 16)
f = 20Hz to 20kHz, VDD = 3.0V, VBUS = 3.2V or
VIN = 0.5V, VNCx = 0.60VRMS, RL = 32Ω, (See Figure 10)
Signal = 8dBm, RL = 50Ω, CL = 5pF, (See Figure 13)
25
25
25
25
- 0.04 - %
- 0.03 -
°
- 0.007 -
%
- 394 - MHz
NCx (Audio/Video) Switch -3dB
Signal = 8dBm, RL = 75Ω, CL = 5pF, (See Figure 14)
25
-
264 - MHz
Bandwidth
NOx (USB) Switch -3dB Bandwidth Signal = 18dBm, 1Vdc offset, RL = 50Ω, CL = 5pF,
(See Figure 13)
25 - 239 - MHz
NOx OFF Capacitance, CNOx(OFF) f = 1MHz, VDD = 3.0V, VBUS = 3.2V or VIN = 0.5V, VNO 25 - 10 - pF
or VNC = VCOM = 0V, (See Figure 5)
NCx OFF Capacitance, CNCx(OFF) f = 1MHz, VDD = 3.0V, VBUS = 3.8V or VIN = 1.4V, VNO 25 - 13 - pF
or VNC = VCOM = 0V, (See Figure 5)
COMx ON Capacitance, CCOMx(ON) f = 1MHz, VDD = 3.0V, VBUS = 3.8V or VIN = 1.4V, VNO 25 - 46 - pF
or VNC = VCOM = 0V, (See Figure 5)
DataSheet4 U .com
5
FN6318.1
June 27, 2006
5 Page 
www.DataSheet4U.com
ISL54415, ISL54416, ISL54417
ISL54415 and ISL54416 Operation
The ISL54415 and ISL54416 function the same except the
ISL54416 does not have the VTERM feature. The discussion
that follows pertains to both devices and will discuss using the
parts in the typical application shown in the block diagram on
page 10.
LOGIC CONTROL
The state of the ISL54415 and ISL54416 devices are
determined by the voltage at the VBUS pin (pin 2). The VBUS
pin is internally pulled low and can be left floating.
If VBUS (pin 2) is floating or the VBUS voltage ≤ VDD + 0.2V
the part will be in the audio/video mode. In Audio/Video
mode the NC1 and NC2 1Ω audio/video switches are ON
and the NO1 and NO2 5Ω USB switches are OFF (high
impedance). In this state power to the part is provided by the
DC voltage connected at the VDD pin (pin 1). In a typical
application VDD will be in the range of 2.5V to 3.6V and will
be connected to the battery or LDO of the media player.
When a headphone/video receiver is plugged into the
common connector, nothing gets connected at the VBUS pin
(its floating) and the ISL54415 and ISL54416 parts remains
in the audio/video mode and the media player audio and
video drivers can drive the headphones and video display.
If VBUS (pin 2) voltage is greater than VDD by 0.8V the part
will go into USB mode. In USB mode the NO1 and NO2 5Ω
USB switches are ON and the NC1 and NC2 1Ω audio/video
switches are OFF (high impedance). In this state the part will
be powered by the voltage connected at the VBUS pin (pin
2). When a USB cable from a computer or USB hub is
connected at the common connector the VBUS voltage is
driven to between 4.4V and 5.25V. The ISL54415 and
ISL54416 parts will go into the USB mode. In USB mode the
computer or USB hub transceiver and the media player USB
transceiver are connected and digital data will be able to be
transmit back and forth.
When the USB cable is disconnected the switch
automatically turns the NO1 and NO2 switches OFF and
turns the NC1 and NC2 audio/video switches ON.
POWER
In audio/video mode the power supply connected at VDD
(pin 1) provides power to the ISL54415 and ISL54416 parts.
Its voltage should be kept in the range of 2.5V to 3.6V when
used in a USB application to ensure you get proper
switching when the VBUS voltage is at its lower limit of 4.4V.
In USB mode power for the ISL54415 and ISL54416 parts is
provided from the VBUS line from the host USB controller of
the computer or USB hub. Its voltage will be between 4.4V
and 5.25V.
VTERM OPERATION (ISL54415 ONLY)
When a USB cable from a computer is connected to a USB
device a VTERM voltage must be applied to a speed
indicating pull-up resistor to properly terminate the bus and
identify whether the USB device is a full-speed or low-speed
device to facilitate proper digital transmission. When the
cable is removed from the device this VTERM voltage must
be disconnected from the speed indicating pullup resistor.
The ISL54415 device can perform this operation.
When VDD ≥ 2.5V and VBUS ≥ VDD + 0.8V, the VTERM pin
(pin 10) outputs an open circuit voltage equal to the voltage
at the VBUS pin. Otherwise the VTERM pin will be in a HI-Z
state.
The ISL54415 VTERM circuitry has an internal series resistor
approximately equal to 5.3kΩ. For a full-speed USB
application it is recommended you use a 3kΩ ±5% speed
indicating pull-up resistor. When the USB bus is in the idle
state, a 3kΩ ±5% resistor will put the D+ line voltage in the
range of 2.7V to 3.6V as required by the USB specification.
For low-speed USB application it is recommend you use a
2kΩ ±5% pull-up resistor at the D- line in order to meet the
USB connect and disconnect timing requirements.
ISL54417 Operation
The ISL54417 is an audio/video and data switch. Its logic
control is typical of a standard dual SPDT switch.
The digital control for the ISL54417 are the IN pins (pin 2
and pin 10). These pins are 1.8V logic compatible when
operated with a 3.0V supply. The device has been designed
to have low IDD current even when the logic voltage is not at
the rail. With VDD = 5.5V and VIN = 2.85V the ISL54417
draws only 8µA current.
When logic pin IN1 (pin 10) is LOW the NC1 audio/video
switch is ON and the NO1 USB data switch is OFF. When
logic pin IN1 (pin 10) is HIGH the NC1 audio/video switch is
OFF and the NO1 USB data switch is ON.
When logic pin IN2 (pin 2) is LOW the NC2 audio/video
switch is ON and the NO2 USB data switch is OFF. When
logic pin IN2 (pin 2) is HIGH the NC2 audio/video switch is
OFF and the NO2 USB data switch is ON.
Power for the ISL54417 device is always provided by the DC
voltage source connected at the VDD pin (pin 1). The VDD
power supply voltage range is from 1.8V to 5.5V.
DataSheet4 U .com
11
FN6318.1
June 27, 2006
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet ISL54416.PDF ] | |
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