IDT HS221P10NDGI8 Hybrid switch with negative signal handling Datasheet

DATASHEET
IDTHS221P10
HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
Description
Features
The IDTHS221P10 is a high-performance hybrid switch
device, combined with hybrid low distortion audio and USB
2.0 high speed data (480 Mbps) signal switches, and
analog switches. When operated with a 1.8 V single supply,
this high performance switch allows audio signal swings
below-ground, allowing the use of a common USB and
audio headphone connector in personal media players and
other portable battery powered devices.
• +1.7 V to +1.95 V single-supply operation (VDDx)
• Low distortion negative signal handling capability with
Ron less than 2 ohm for Audio signal
•
•
•
•
•
The IDTHS221P10 logic SEL control pin is 1.8 V
compatible which allows for control via a standard
µcontroller. With a VDD voltage in the range of 1.7 V to 1.95
V, the device can pass USB 3 V signal sources in the
portable device, with up to 5.5 V tolerant on USB and COM
signal pins. The part has an audio enable control pin to
open all the switches and put the part in a low power state.
Control pin to open all switches and enter low power state
Cross-talk audio channels (20 Hz to 20 kHz): -110dB
-3dB bandwidth USB switches: 700 MHz
Available in µMLP packages – RoHS compliant
Compliant with USB 2.0 short circuit requirements
without additional external components
• Power off protection on common D+/R, D-/L ports
Applications
•
•
•
•
The IDTHS221P10 is available in a small 10-pin µMLP
package.
MP3 and other personal media players
PDA’s
Audio/USB Switching
Cellular and mobile phones
Block Diagram
SEL
Control
Circuit
D+
COM+
R
RCOM+
DCOML
RCOM-
VDDD
IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
VDDA
1
GND
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HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
HYBRID SWITCH
COM-
COM+
Pin Assignment (10-pin µMLP)
SEL
VDDA
GND
VDDD
D+
L
D-
R
Truth Table (COM+, COM-)
SEL
COM+
COM-
0
R
L
1
D+
D-
Pin Descriptions
Pin Number Pin Name
Pin Description
1
D-
3 V USB Signal. Bi-directional.
2
R
Audio signal pin (right). Uni-directional. ±1.5 V signal.
3
L
Audio signal pin (left). Uni-directional. ±1.5 V signal.
4
GND
Ground pin. 0V reference.
5
VDDA
Power pin for Audio R/L signal. +1.8 V VDD.
6
COM-
Audio and USB signal common pin. Bi-direction in USB mode,
uni-directional in Audio mode.
7
COM+
Audio and USB signal common pin. Bi-direction in USB mode,
uni-directional in Audio mode
8
SEL
9
VDDD
10
D+
Control signal pin. Internal pull-down resistor.
Power pin for USB. +1.8 V VDD.
3 V USB Signal. Bi-directional.
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Detailed Description
switches that were designed to pass high-speed USB
differential signals in the range of ±0V to 400 mV. These
switches have low capacitance and high bandwidth to pass
USB high-speed signals (480 Mbps) with minimum edge
and phase distortion to meet USB 2.0 high-speed signal
quality specifications.
The IDTHS221P10 device is a dual single pole/double throw
(SPDT) high performance switch device that can operate
from a single DC power supply in the range of 1.7 V to 1.95
V. 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 µMLP packages for
use in cell phones, MP3 players, PDAs, and other personal
media players.
The maximum signal range for the USB switches is from 0V
to 3.6 V. The signal voltage at D- and D+ should not be allow
to exceed the 3.6 voltage rail or go below ground.
The USB switches are active (turned ON) whenever the SEL
voltage is >1.2 V.
The part consists of one hybrid dual 2Ω audio and 5Ω USB
switches. The hybrid switch can accept audio signals that
swing below ground and USB signals. They were designed
to pass audio left and right stereo signals, and 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.
Note: Whenever the USB switches are ON the audio drivers
of the CODEC need to be at AC or DC ground or floating to
keep from interfering with the data transmission.
Logic Control
The state of the IDTHS221P10 device is determined by the
voltage at the SEL pin. Refer to truth table on page 2 of data
sheet. These logic pins are 1.8 V logic compatible, and can
be controlled by a standard µprocessor.
The IDTHS221P10 was specifically designed for 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.
The SEL pin is internally pulled low through a 4MΩ resistor
to ground and can be left floating or tri-stated by the
µprocessor.
The IDTHS221P10 has a SEL pin that select between the
audio switches and the USB switches. This pin can be
driven LOW or HIGH to switch between the audio inputs and
USB data inputs.
Logic control voltage levels:
SEL = Logic “0” (Low) when <0.5 V
SEL = Logic “1” (High) when >1.2 V
Audio Switches
The two audio switches (L, R) are 2Ω¸ switches that can
pass signals that swing below ground by as much as 1.5 V.
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 typically < -110dB.
These audio switches are uni-directional switches. The
audio drivers should be connected at the L and R side of the
switch and the speaker loads should be connected at the
COM side of the switch. The audio switches are active
(turned ON) whenever the SEL voltage to <0.5 V.
Note: Whenever the audio switches are ON the USB
transceivers need to be in the high impedance state or static
high or low state.
USB Switches
The two USB switches (D+, D-) are 5Ω¸ bidirectional
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HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
HYBRID SWITCH
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the IDTHS221P10. These ratings, which
are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at
these or any other conditions above those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical
parameters are guaranteed only over the recommended operating temperature range.
Item
Rating
VDD to GND
-0.3 V to 6.0 V
Ambient Operating Temperature Range
-40°C to +85°C
Continuous Current (audio switches)
±150 mA
Peak Current (audio switches)
Pulsed 1 ms, 10% duty cycle max.
±300 mA
Continuous Current (USB switches)
±40 mA
Peak Current (USB switches)
Pulsed 1 ms, 10% duty cycle max.
±100 mA
Voltages
Switch I/O Voltage - D+, D-, COM+, COM- (see note below)
-0.3 V to +6 V
Switch I/O Voltage - L, R (see note below)
-2 V to +2 V
SELx (see note below)
-0.3 V to [(VDD) + 0.3 V]
ESD Rating
HBM
>8 kV
MM
>400 V
CDM
>1 kV
Note: These specifications are for absolute maximum rating. Not recommended for typical operation.
Recommended Operating Conditions 1
Symbol
Parameter
Rating
VCC
Supply Voltage
1.7 V to 1.95 V
VIN
DC Switch Voltage
0V to VDD
DC Input Diode Current
0V to VDD
Storage Temperature
-40°C to +85°C
Note 1: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings
are observed. DC switch voltage may never exceed 1.95 V.
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HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
HYBRID SWITCH
Electrical Characteristics – 1.7 V to 1.95 V Supply
Unless stated otherwise, VDD =1.7 V to 1.95 V, GND = 0V
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
1.5
V
Audio Switches (L, R)
Audio Signal Range
VANALOG
On-Resistance
RON
RON Matching Between
Channels
RON Flatness
Discharge Pull-down
Resistance
-1.5
RON
RFLAT(ON)
RCOM+,
RCOM-
POP discharge pull-down resistor
2
Ω
0.2
Ω
1.5
Ω
10
kΩ
USB Switches (D+, D-)
USB Signal Range
On-Resistance
RON Matching Between
Channels
VANALOG
0
RON
RON
3.6
V
5
Ω
0.1
Ω
RON Flatness
RFLAT(ON)
1.5
Ω
OFF-leakage Current
ID+(OFF) or
ID-(OFF)
±50
nA
ON-leakage Current
IDx
±50
nA
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Parameter
Symbol
HYBRID SWITCH
Conditions
Min.
Typ.
(note 2)
Max.
Units
(note 2)
Dynamic Characteristics
Turn-on Time
tON
20
µs
Turn-off Time
tOFF
5
µs
tD
25
µs
50
ps
Break-Before-Make
Delay
Skew
Additive Jitter
Propagation Delay
Crosstalk
(Channel-to-channel)
Total Harmonic
Distortion
tSKEW
tJ
tPD
R to COM-,
L to COM+
THD
USB Switch -3 dB
Bandwidth
D+/D- OFF
Capacitance
CD+(OFF),
CD-(OFF)
L/R OFF
Capacitance
CLOFF,
CROFF
COM ON
Capacitance
CCOM-(ON),
CCOM+(ON)
RL = 45Ω, CL = 10 pF, tR=tF=750 ps at 480
Mbps, (Duty cycle=50%)
RL=45Ω, CL=10 pF, tR=tF=750 ps at 480 Mbps
100
ps
RL=45Ω, CL=10 pF (Fig.7)
250
ps
RL=32Ω, f = 20Hz to 20 kHz,
VLor VR=0.707 VRMS (2VP-P)
-110
dB
f = 20Hz to 20 kHz, VLor VR=0.707 VRMS
(2VP-P), RL= 32Ω
0.06
%
RL=50Ω, CL=5 pF
700
MHz
f=1 MHz, VLor VR=VCOMx=0V
6
pF
f=1 MHz, VD+or VD-=VCOMx=0V
9
pF
f=1 MHz, VDD=3.3 V, VD-or VD+=VCOMx=0V
10
pF
Power Supply
Power Supply Range
VDD
Positive Supply
Current
IDD
1.7
5
Voltage Low
VIL
SEL pin
Voltage High
VIH
SEL pin
Internal Pull-down
Resistor
RSEL
SEL pin
IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
1.2
V
10
µA
0.5
V
V
4
6
1.95
MΩ
IDTHS221P10 REV F 112108
IDTHS221P10
HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
HYBRID SWITCH
Test Circuits and Waveforms
C
VDD
VDD
Logic
Input
tr <20ns
tr <20ns
50%
0V
Switch
Input
Switch
Input
tOFF
VINPUT
VOUT
Audio or USB
COMx
VOUT
IN
90%
90%
Switch
Output
CTRL
VINPUT
RL
50
ohm
GND
VIN
0V
CL
10pF
tON
Repeat test for all switches. CL includes fixture and stray
capacitance.
Logic input waveform is inverted for switches that have the
opposite logic sense.
VOUT = V(INPUT)
Fig. 1A Measurement Points
RL
RL + R(ON)
Fig. 1B Test Circuit
Figure 1: Switching Times
VDD
Logic
Input
VDD
CTRL
D- or D+
VINPUT
C
COMx
VOUT
L or R
0V
IN
Switch
Output
VOUT
90%
RL
50
ohm
GND
VIN
CL
10pF
0V
tD
Repeat test for all switches. CL includes fixture and stray
capacitance.
Fig 2A Measurement Points
Fig. 2B Test Circuit
Figure 2: Break-Before-Make Time
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Marking Diagram (µMLP)
TBD
Notes:
1. “Z” is the device step (1 to 2 characters).
2. YYWW is the last two digits of the year and week that the part was assembled.
3. “$” is the assembly mark code.
4. “G” after the two-letter package code designates RoHS compliant package.
5. “I” at the end of part number indicates industrial temperature range.
6. Bottom marking: country of origin if not USA.
Thermal Characteristics
Parameter
Symbol
Rating
Units
θ JA
TBD
° C/W
+150
°C
-65 to +150
°C
Thermal Resistance (see note below)
10-pin µMLP package
Maximum Junction Temperature (plastic package)
Maximum Storage Temperature Range
Note: θJA is measured with the component mounted on a high effective thermal conductivity test board in free air.
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Package Outline and Package Dimensions (10-pin µMLP)
SYMBOL
A
A1
A3
b
c
D
E
E1
N
ND
NE
e
aaa
bbb
ccc
IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
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MIN
0.51
0.00
0.15
0.09
Millimeters
NOM
MAX
0.55
0.60
0.02
0.05
0.15 ref
0.20
0.25
0.20
1.40 BASIC
1.80 BASIC
6.00
Notes
1, 2
1, 2
1, 2
6.20
10
3
2
0.40
0.15
0.10
0.10
3
5
5
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HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
HYBRID SWITCH
Ordering Information
Part / Order Number
Marking
HS221P10NDGI
TBD
Shipping Packaging
Package
Temperature
Tubes
10-pin µMLP
-40 to +85° C
Tape and Reel
10-pin µMLP
-40 to +85° C
HS221P10NDGI8
Parts that are ordered with a “G” after the two-letter package code are the Pb-Free configuration and are RoHS compliant.
While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology (IDT) assumes
no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No
other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications
such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not
recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT
does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.
Revision History
Rev.
Originator
Date
Description of Change
A
EL
10/22/07
Preliminary datasheet. Initial release.
B
EL
11/09/07
Added Low Power State
C
01/04/08
Changed supply voltage from 1.8 V ±0.1 V to 1.7 V – 1.95 V.
D
01/04/08
Added Rcom+ and Rcom- resistors to Block Diagram; updated Electrical Characteristics
table.
E
01/29/08
Absolute I/O Voltage ratings. Industrial temperature range.
F
11/21/08
Updated ESD; clarification on POP discharge resistor.
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HYBRID SWITCH
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© 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device
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Printed in USA
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