PI3USBA201ZME [PERICOM]
Consumer Circuit, 1.40 X 1.80 MM, GREEN, MO-236, UQFN-10;
| 型号： | PI3USBA201ZME |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | Consumer Circuit, 1.40 X 1.80 MM, GREEN, MO-236, UQFN-10 |
| 文件： | 总18页 (文件大小：1209K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Features
Description
• Icc = 150 μA max
Pericom’s PI3USBA201 is a Dual SPDT that combines a low-
distortion audio and a USB2.0 High-Speed (HS) switch path. This
configuration enables audio and USB data to share a common con-
nector port. Combining USB and audio signals to the same port
enables CE product designers to eliminate a second connector,
which saves board space and BOM costs associated with connector
moldings and ESD protection for the second connector.
• Voltage input tolerance down to -1.5V
• Ron = 3-ohm @±1.5V for audio channels
• THD of 0.02% with 32-ohm load
• Off-Isolation = -100dB @ 100 KHz for audio channels
• CrossTalk = -100dB @ 100 KHz for audio channels
• 2kV HBM ESD protection on I/O pins
• Con = 5pF for USB channels
• Improved switching time to eliminate pop sounds associated
with charge build-up in large capacitor
• Packaging (Pb-free & Green available):
→10-pin contact TQFN, 1.3 x 1.6, (ZL10)
→10-pin contact UQFN, 1.4 x 1.8, (ZM10)
Pericom’s PI3USBA201 architecture is designed to allow audio
signals to swing below ground due to AC coupling or D-Class
audio amplifiers.
Typical applications involve switching in portables and consumer
applications, such as cell phones, digital cameras, and notebooks
with hubs or controllers.
Block Diagram
Pin Configuration
D+/R
D-/L
R
L
D+
D-
10
9
4
8
VBUS
D–/L
1
7
D+
L
Logic
Control
Vbus
2
6
5
3
Truth Table
V
Results
bus
L/R
ON
D+/D-
OFF
ON
0
1
OFF
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.)
Note: Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the device. This
is a stress rating only and functional operation of the device
at these or any other conditions above those indicated in the
operational sections of this specification is not implied. Ex-
posure to absolute maximum rating conditions for extended
periods may affect reliability.
Storage Temperature ...................................................–65°C to +150°C
Supply Voltage (V ) .....................................................2.5V to 2.94V
DD
Control Input Voltage (VVbus).............................................0V to 5.0V
DC Input Voltage ..............................................................-1.5V to V
DD
Maximum Junction Temperature (T ) ........................................ +150°C
j
Lead Temperature (T )
L
Soldering, 10 seconds ............................................................. +260°C
Power Dissipation..........................................................................0.5W
Recommended Operating Conditions
Supply Voltage (V )........................................................... 2.8V ± 5%
DD
(1)
Control Input Voltage (V
)
...........................................0V to 5.5V
BUS
Switch Input Voltage (V ) ..............................................-1.5V to 1.5V
IN
Operating Temperature .................................................–40°C to +85°C
Notes:
1. Unused Inputs must be held HIGH or LOW. They may not float.
Pin Description
No.
Name
Function
Digital Control Input
(Power supply from USB connector)
1
V
BUS
2
3
4
5
6
7
8
D-/L
D+/R
GND
R
Voice and Data Common Pin
Voice and Data Common Pin
Ground Connection
Audio Right Input
L
Audio Left Input
D+
USB Differential Input
USB Differential Input
D-
External Cap (please use 0.1μF to
GND)
9
cap
10
V
DD
Power Supply
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
DC Electrical Characteristics
(T = –40°C to +85°C, V = 2.8V ±5%)
A
DD
Parameter
Test Conditions
Min.
Typ.
Max.
Units
ANALOG SWITCH CHARACTERISTICS
Audio Signal Path (pins 2,3,5, and 6)
Analog Signal Range, V
–1.5
–
1.5
3.5
V
ANALOG
R
test
V
V
= 2.8V and Vinput from -1.5V to 1.5V.
Ω
ON
DD
R
Matching Between Channels,
= 2.8V, V
= 0V, I
= 40mA, V or
L
ON
DD
BUS
COM
–
–
–
–
-
0.15
1.30
5
Ω
Ω
∆R
V = -1.5V to +1.5V
R
ON
V
DD
= 2.8V, V
= 0V, I
= 40mA, V or
L
BUS
COM
R
Flatness, R
FLAT(ON)
ON
V = -1.5V to +1.5V
R
OFF Leakage Current, I
V
DD
= 2.8V, V
= HIGH, V
or V
=
D+/L(OFF)
BUS
D+/L
D+/R
-5
nA
OR I
, I
0V, V or V = floating, V + and V - = floating.
D-/L(OFF) com(OFF)
L
R
D
D
V
= 2.8V, V
= 0V, V
or V
= -0.8V,
D+/R
DD
BUS
D-/L
Discharge Pull Down Resistance,
R , R
0.8V, V or V = -0.8V, 0.8V, V or V = -0.8V,
0.8V, V + and V - = floating.
50
KW
L
R
L
R
L
R
D
D
AC Electrical Characteristics Audio Signal Path (pins 2, 3, 5, and 6)
(All typical values are at 25°C unless otherwise specified)
Test
Conditions
Parameter
Description
Min.
Typ.
Max.
Units
Q
Charge Injection
V
V
V
V
V
= 2.7V
10.0
pC
DD
DD
DD
DD
DD
Q
X
OFF Isolation
= 2.7V, f=100kHz
= 2.7V, f=100kHz
= 2.7V
-100
-100
1400
IRR-audio
dB
Crosstalk
talk_audio
BW
-3db Bandwidth for Audio path
MHz
audio
(2)
= 2.7V , Load = 32-Ohm
Total Harmonic Distortion for
audio path
THD
to GND, Freq = 20Hz to 20KHz,
Vinput = 0.5Vpp, Vbus = 0V
0.02
%
audio
Notes:
1. RL = 50-ohm, CL = 35pF
2. RL = 32-ohm, VBUS = 0.5V P.P., f = 20 Hz to 20 kHz
Capacitance (Audio Path)
Parameters
Description
Audio Path OFF Capacitance
Audio Path ON Capacitance
Test Conditions
= 2.7V
Typ.
2.5
Max.
Units
C
OFF
V
pF
DD
C
ON
7.5
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
(3)
Switching Characteristics (Audio Path)
(2)
Test
Parameters
Description
Min.
Typ.
Max. Units
Conditions
(1)
t
Propagation Delay
Turn ON Time
0.25
600
6
ns
ns
ns
PD
T
V
V
= 2.7V
= 2.7V
ON
DD
T
OFF
Turn OFF Time
DD
Notes:
1. The switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time
constant for the switch alone is of the order of 0.25ns for 10pF load. Since this time constant is much smaller than the rise/fall times of typical
driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is determined
by the driving circuit on the driving side of the switch and its interactions with the load on the driven side.
2. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
3. Typical values are at VDD = 2.8V, TA = 25C ambient and maximum loading.
AC Electrical Characteristics - USB Signal Path (Pins 2,3,7,8)
(All typical values are at 25°C unless otherwise specified)
Test
Conditions
Parameter
Description
Min.
Typ.
Max.
Units
Q
Charge injection
V
DD
V
DD
V
DD
V
DD
V
DD
V
DD
= 2.7V
10
pC
Q
USB off isolation
USB Xtalk
= 2.7V, f=240MHz
= 2.7V, f=240MHz
= 2.7V
–38
–33
1350
12.5
4.05
4
IRR USB
dB
MHz
ns
X
talk
BW
-3dB BW for USB Path
Turn on time
usb
t
t
/t
= 2.7V
PZH PZL
t
Turn off time
= 2.7V
PHZ/ PLZ
C
ON
USB port is ON
USB port is off
pF
pF
C
1.4
OFF
USB Signal Path (pins 2,3,7, and 8)
V
= 2.8V, V
= HIGH, I
= 40mA, V
DD
BUS
COM
D+
ON Resistance, R
-
-
-
-
-
-
7
Ω
Ω
Ω
ON
or V = -0.4V to 1.0V
D-
R
ON
Matching Between Channels,
V
= 2.8V, V = HIGH I
BUS
= 40mA, V
DD
COM
D+
0.25
2.5
∆R
or V = -0.4V to +1.0V
D-
ON
V
= 2.8V, V
= HIGH, I
= 40mA, V
COM D+
DD
BUS
R
ON
Flatness, R
FLAT(ON)
or V = -0.4V to +1.0V
D-
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Control Input (V
)
bus
Test
Conditions
Parameter
Description
Min.
Typ.
Max.
Units
V
Input High Level
Input Low Level
Clamp Diode Voltage
Input Cap
2.0
V
V
IH
V
0.6
IL
IK
IN
V
C
–3.5
1.5
V
pF
Power Supply
Test
Conditions
Parameter
Description
Power Supply Range
Power Supply Current
Min.
2.8V - 5%
Typ.
Max.
Units
V
V
2.8V + 5%
150
DD
Vbus = 0V or V
,
DD
I
100
μA
CC
V
= 2.94V
DD
V
DD
Test Circuit for Electrical Characteristics
V
D+/L
DD
L
V
N
V
OUT
or D+
R
C
L
L
50
35pF
IN
GND
LOGIC
INPUT
C
L
Notes:
• CL = Load capacitance: includes jig and probe capacitance.
• RT = Termination resistance: should be equal to ZOUT of the Pulse Generator
• Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
• All input impulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50ꢀ, tR ≤ 2.5ns, tF ≤ 2.5ns.
• The outputs are measured one at a time with on transition per measurement.
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Switching Waveforms
2.5V
0V
Vbus
1.25V
1.25V
2.8V
1.0V
2.5V
Input
2.5V
t
PZL
t
PLZ
V
Output
OH
V
V
t
PLH
t
PHL
DD/2
DD/2
V
V
+0.3V
–0.3V
OL
V
V
OL
V
V
OH
OL
t
t
PHZ
PZH
Output
2.5V
2.5V
OH
OH
V
Output
OL
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Application Section
Section 1: TDR Measurement for USB Port
• TDR passes the USB 2.0 TDR Specification. The impedance is ranging from 88-ohm to 110-ohm. Please
refer to Fig 1.
Figure 1: TDR D± to D± and L/R USB Switch Connected to Audio Switch, V =3.3V, 25°C
DD
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Section 2: Tektronics Compliance Test for USB Port
Part A: USB 2.0 Full Speed Compliance Test Result
Signal Quality Test Results in Tektronix format
Device Description: Full Speed, Far End Device, Down Stream Testing, Tier 6, Dummy Device.
Overall Result: Pass*
Figure 4. Waveform Plot
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Figure 5. Eye Diagram
Results based on USB-IF / Waiver Limits :
Measurement
Name
Minimum
Maximum
Mean
-
pk-pk
-
Standard
Deviation
RMS
-
Popu- Status
lation
Eye Diagram
Test
-
-
-
-
Pass
Signal Rate 11.90476Mbps 12.12471Mbps 12.00434Mbps 0.0000bps 79.88911kbps 12.00837Mbps
31
18
Pass
Pass
Crossover
Voltage
1.588571 V
1.746667 V
1.661607 V
158.0952mV 47.16220mV
1.662239 V
EOP Width
-
-
166.5854ns
0.0000s
-
-
-
1
Pass
Pass
Consecutive
Jitter
-706.6734ps
871.2068ps
1.577880ns
471.7937ps
457.7071ps
17
Paired JK
Jitter
-432.8111ps
-391.2876ps
203.0108ps
349.0961ps
-103.3794ps
-125.8723ps
635.8218ps
740.3836ps
194.7113ps
254.9465ps
209.4296ps
267.4998ps
8
7
Pass
Pass
Paired KJ
Jitter
Additional Information :
Rise Time: Min: 30.890ns Max: 540.81ns Mean: 217.87ns Std: 230.23ns RMS: 306.35ns Population: 8
Fall Time: Min: 28.568ns Max: 620.31ns Mean: 182.20ns Std: 200.98ns RMS: 262.87ns Population: 9
* The Overall Result for this test is Pass, because individual status of the measurements is Pass and it is performed on Tier 6
(as per USB-IF).
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Part B: USB 2.0 High Speed Compliance Test Result
Signal Quality Test Results in Tektronix format
Device Description: High Speed, Near End Device, Up Stream Testing, Tier 1, Dummy Device.
Overall Result: Pass*
Figure 6. Waveform Plot
Figure 7. Eye Diagram
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Results based on USB-IF / Waiver Limits
Measurement
Name
Minimum
Maximum
Mean
pk-pk
Standard
Deviation
RMS
Popu- Status
lation
Monotonic
Property
-
-
-
-
-
-
-
-
-
-
-
0
Pass
Eye Diagram
Test
-
-
Pass
Signal Rate 470.3833Mbps 491.3558Mbps 480.0858Mbps 0.0000bps 4.946610Mbps 480.2564Mbps
513
1
Pass
Pass
Pass
EOP Width
-
-
-
-
16.32403ns
7.836932
-
-
-
-
-
-
EOP Width
(Bits)
1
Rise Time
Fall Time
771.4486ps
757.9116ps
1.081520ns
1.046563ns
910.3355ps
889.0831ps
310.0716ps
288.6509ps
62.09212ps
61.68317ps
912.4309ps
891.2003ps
107
7
Pass
Pass
Monotonicity test is performed on the test limits of 15.0% and 85.0%.
Additional Information :
Consecutive Jitter range : -71.64ps to 118.7ps RMS Jitter 37.48ps
KJ Paired Jitter range : -79.45ps to 86.69ps RMS Jitter 33.26ps
JK Paired Jitter range : -70.36ps to 77.29ps RMS Jitter 25.08ps
*The Overall Result for this test is Pass, because one or more individual status of the measurements is Pass.
For this test, the recommended configuration for USB2 testing (as per USB-IF) is on Tier 1
3.3V
F
0.1u
c(a)p
VDD
D-
D+
L
VBUS
USB Connector
PI3USBA201
0k
10
/L
D-
D+/
GND
R
R
USB Connector
Figure 8. PI3USBA201 USB Compliance Test Schematic
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Section 3. Pop Sound Elimination Evaluation
Pop sound elimination is evaluated with long switch time feature. Moreover, pop sound is evaluated with AC
coupling capacitor placed before PI3USBA201 and after PI3USBA201. A MP3 player is used as a source and
Philips headset is used to confirm the pop sound occurs or not.
Long switch time evaluation:
Pop Sound
Figure 9: Pop sound with 0.1μF cap at the c(a)p pin
Pop sound is
eliminated
Figure 10: Pop sound with 0.1μF cap at the c(a)p pin (switching from USB path to Audio path)
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
No popping
sound
Figure 11: Pop sound elimination with AC coupling capacitor placed before PI3USBA201
3.3V
VDD
0.1uF
D-
c(a)p
Audio
Amplifier
D+
L
VBUSPI3USBA201
100k
1000uF
1000uF
D-/L
D+/R
GND
R
Audio
Amplifier
Figure 12: Schematic of Testing Pop sound elimination with Long Switching Time
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
3.3V
VDD
c(a)p
D-
Audio
Amplifier
D+
L
VBUSPI3USBA201
1000uF
1000uF
100k
D-/L
D+/R
GND
R
Audio
Amplifier
Figure 13: Schematic of Testing Pop sound elimination with AC coupling capacitor placed before PI3USBA201
Conclusion
1. Pop sound evaluation:
a. Using long switch time, pop sound still occurs when PI3USBA201 switches to USB port. Pop sound is eliminated
when PI3USBA201 switches to Audio port. Please refer to Figure 9 to 10.
b. When placing AC coupling capacitor, pop sound is eliminated. Please refer to Figure 11.
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Test Circuits and Timing Diagrams
V
DD
V
DD
D/L
D/L
V
N
V
OUT
R
C
L
L
50W
35pF
V
bus
GND
LOGIC
INPUT
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
Note:
Figure 1. AC Test Circuit
1. Unused input (NC or NO) must be grounded.
VIH
VIL
t
t
r < 5ns
f < 5ns
Logic
Input
50%
Off
On
Off
tOFF
VOUT
Switch
Output 0V
90%
90%
tON
Logic Input Waveforms inverted for
Switches that have opposite logic
Figure 2. AC Waveforms
L
V
IN
50%
D/L
Logic
Input
V
OUT
D
R
C
L
35pF
L
V
OUT
50Ω
Vbus
0.9 x V
OUT
Logic
Input
t
BBM
Figure 3. Break Before Make Interval Timing
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
D/L
R
GEN
Logic
Input
L/D
OFF
ON
OFF
ΔV
V
OUT
C
L
1nF
V
GEN
OUT
Vbus
Logic
Input
Q = (ΔV
)(C )
L
OUT
Figure 4. Charge Injection Test
V
DD
V
V
DD
10nF
10nF
D/L
50Ω
50W
V
DD
D/L
DD
L
Signal
Generator
Signal
Generator
Logic Input
0V or V
50Ω
D
IH
Vbus
Analyzer
D/L
Vbus
GND
Analyzer
GND
C
5pF
L
R
50Ω
L
C
5pF
L
R
L
50W
Figure 6. Crosstalk
Figure 5. Off Isolation
V
DD
V
DD
10nF
10nF
Capacitance
Meter
V
V
DD
DD
L/D
L/D
f = 1 MHz
Logic Input
0V or V
IH
Logic Input
0V or V
IH
Capacitance
Meter
V
bus
Vbus
f = 1 MHz
L/D
L/D
GND
GND
Figure 8. Channel On Capacitance
Figure 7. Channel Off Capacitance
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
V
DD
10nF
50W
V
DD
L/D
ANALYZER
V/D
Vbus
Signal
Generator
50W
Logic Input
0V or V
IH
GND
Figure 9. Bandwidth
Packaging Mechanical: 10-Contact TQFN (ZL)
DATE: 01/12/09
DESCRIPTION: 10-Contact, Thin Fine Pitch Quad Flat No-Lead (TQFN)
PACKAGE CODE: ZL (ZL10)
REVISION: C
DOCUMENT CONTROL #: PD-2052
09-0031
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PI3USBA201
Signal Switch Solution for USB 2.0 High
Speed Signals and AC Coupled Audio Signals
Packaging Mechanical: 10-Contact UQFN (ZM)
DATE:
01/29/09
DESCRIPTION: 10-contact, Ultra-thin Quad Flat No-Lead (UQFN)
PACKAGE CODE: ZM10
REVISION: A
DOCUMENT CONTROL #: PD-2066
09-0072
Ordering Information
Ordering Code
PI3USBA201ZLE
PI3USBA201ZME
Package Code
Package Description
Top Mark
ZL
Pb-free & Green, 10-contact TQFN
Pb-free & Green, 10-contact UQFN
FG
FG
ZM
Notes:
• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• E = Pb-free and Green
• X suffix = Tape/Reel
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
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