PI5PD2041B [PERICOM]

70m Current-Limited, Power-Distribution Switches;
PI5PD2041B
型号: PI5PD2041B
厂家: PERICOM SEMICONDUCTOR CORPORATION    PERICOM SEMICONDUCTOR CORPORATION
描述:

70m Current-Limited, Power-Distribution Switches

文件: 总9页 (文件大小:553K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
PI3A288  
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Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch  
with Negative Signal Handling Capability  
Features  
Description  
PI3A288 is a dual, single-pole double throw (SPDT)  
CMOS switch with negative signal handling capability  
at all ports. It can be used as an analog switch or as a  
low-delay bus switch. Operating over a wide power  
supply voltage ranges from 1.65V to 4.3V, PI3A288  
processes a low on-resistance and distortion. The ultra-  
low THD performance enables PI3A288 to apply in  
high-quality audio applications.  
CMOS Technology for Bus and Analog Applications  
Negative Signal Handling Capability at all Ports  
Low On-Resistance: 0.35Ω at 1.8V Supply  
On-Resistance Flatness 0.001Ω  
Wide VDD Range: 1.65V to 4.3V  
2.0Vrms analog signal range  
Programmable soft-start and soft-stop time  
-3dB Bandwidth: 255MHz  
PI3A288 has also a soft-start and soft-stop feature so as  
to minimize signal disruption during channel switching  
High Off Isolation: -85dB @ 30kHz  
Low THD: 0.0003% from 20Hz to 20kHz, 0.5VRMS  
Crosstalk Rejection Reduces Signal Distortion:  
-85dB @ 30kHz  
Functional Block Diagram  
High-impedance mode when VDD not applied  
ESD4kV for HBM mode, 1kV for CDM mode  
Extended Industrial Temperature Range: 40°C to  
85°C  
Packaging (Pb-free & Green): 10-contact UQFN  
(ZM10)  
Applications  
Cell Phones, PDAs, MP3 Players  
Portable Instrumentation  
Computer Peripherals  
Speaker Headset Switching  
Power Routing  
Pin Description  
Pin  
1, 3  
4
Name  
NOX  
GND  
NCX  
COMX  
VDD  
Description  
Data Ports (Normally open)  
Ground  
2, 10  
5, 8  
9
Data Ports (Normally closed)  
Common Output / Data Ports  
Positive Power Supply  
Relay Replacement  
Audio and Video Signal Routing  
PCMCIA Cards  
7
IN  
Logic Control Pins  
6
SSCAP  
Slew Rate Control Pin  
Modems  
Logic Function Table  
Logic Input (IN)  
Function  
0
NC1 Connected to COM1  
NC2 Connected to COM2  
NO1 Connected to COM1  
NO2 Connected to COM2  
1
2015-10-0009  
PT0541-4  
11/03/15  
1
PI3A288  
Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch  
with Negative Signal Handling Capability  
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Maximum Ratings  
Note:  
Storage Temperature………………………………….. -65to +150℃  
Ambient Temperature with Power Applied......................-40to +85℃  
Stresses greater than those listed under  
MAXIMUM  
RATINGS  
may  
cause  
Supply Voltage VDD……………………………………..-0.5Vto +4.6V  
Control Input Voltage VINx………………………………-0.5Vto +4.6V  
DC Input Voltage VINPUT……………... VDD 6.0V and -3.1V to +3.1V  
Continuous Current NO_NC_COM_………………..…………±350mA  
Peak Current NO_NC_COM_  
(pulsed at 1ms 50% duty cycle) ………………………... ±400mA  
Peak Current NO_NC_COM_  
(pulsed at 1ms 10% duty cycle) ………………….……….. ±500mA  
ESD HBM mode………………………………………………… 4kV  
CDM mode………………………………………………… 1kV  
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.  
Exposure to absolute maximum rating  
conditions for extended periods may affect  
reliability.  
Control input must be held HIGH or LOW; it  
must not float.  
Recommended Operating Conditions  
Symbol  
Parameter  
Conditions  
Min.  
1.65  
0
Typ.  
-
-
Max.  
4.3  
4.3  
Unit  
V
V
VDD  
Operating Voltage  
Control Input Voltage  
-
-
VIN  
VDD =< 2.3V  
VDD > 2.3V  
-
2.0  
1.8  
25  
VINPUT  
TA  
Switch Input Voltage  
Operating Temperature  
VRMS  
°C  
-40  
85  
2015-10-0009  
PT0541-4  
11/03/15  
2
PI3A288  
Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch  
with Negative Signal Handling Capability  
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Electrical Characteristics  
(TA = 40°C to 85°C, unless otherwise noted. Typical values are at 1.8V and +25°C.)  
Parameter  
Symbol  
Test Conditions  
Min.  
Typ. Max. Units  
ANALOG SWITCH  
VNO  
VNC  
VCOM  
,
,
VDD =< 2.3V  
VDD > 2.3V  
2.0  
Analog Signal Range  
On-Resistance  
VRMS  
1.8  
0.35  
VDD = 1.8V, VCOM = 0V  
Test Circuit Figure 1  
VDD = 1.8V, VCOM = 0V between  
same NC_ and NO_ channel  
Test Circuit Figure 1  
RON  
-
-
-
Ω
Ω
On-Resistance Match  
Between Channels  
ΔRON  
0.005 0.05  
On-Resistance  
Flatness  
VDD = 1.8V, VCOM = -2.5V to +2.5V  
Test Circuit Figure 1 (NOTE1)  
VDD =1.8V  
RONF  
ICC  
0.001  
70  
0.01  
110  
Ω
Supply Current  
DIGITAL INPUTS  
Input Logic High  
Input Logic Low  
IN Input Leakage  
Current  
-
μA  
VIH  
VIL  
1.4  
V
0.325  
0.5  
IIN  
VDD = 1.8V, VIN=0 or 1.8V  
-0.5  
-
μA  
DYNAMIC CHARACTERISTICS  
VNO_ or VNC_ = 3V, RL = 32Ω  
SSCAP=float  
VNO_ or VNC_ = 3V, RL = 32Ω  
SSCAP=float  
SSCAP=0.01uF  
VNC_ = 0.1V, 10% to 90%  
Turn-Off Time  
Turn-On Time  
Soft-Start Time  
Soft-Stop Time  
tOFF  
tON  
tSTART  
tSTOP  
65  
270  
5
μs  
μs  
ms  
ms  
SSCAP=0.01uF  
5
VNC_ = 0.1V, 90% to 10%  
VBIAS=0V, VIN=0dBm  
See Test Circuit Figure 2 30kHz  
and Figure 3  
NC-NO and COM-  
NC/NO Off-Isolation  
OISO  
-
-85  
-
dB  
Channel-to-Channel  
Crosstalk  
VBIAS=0V, VIN=0dBm  
See Test Circuit Figure 4  
VBIAS=0V, VIN=0dBm  
See Test Circuit Figure 5  
f=20Hz to 20kHz, RL=32Ω,  
VIN=0.5VRMS, VBIAS=0V (NOTE2)  
XTALKD  
f3dB  
30kHz  
-
-
-
-85  
-
-
-
dB  
-3dB Bandwidth  
255  
-110  
MHz  
dB  
Total Harmonic  
Distortion  
THD+N  
Note 1 and Note 2 These parameters are measured on TA=25°C  
Capacitance  
Uni  
ts  
Parameter  
Symbol  
Test Conditions  
Min.  
Typ. Max.  
Control Pin Input  
Capacitance  
CIN  
VDD=0V, f=1MHz,  
-
6
-
NC Off Capacitance  
NO Off Capacitance  
NC On Capacitance  
NO On Capacitance  
CNC (OFF)  
CNO (OFF)  
CNC (ON)  
CNO (ON)  
VDD=1.8V, f = 1MHz, See Test Circuit Figure 6.  
VDD=1.8V, f = 1MHz, See Test Circuit Figure 6.  
VDD=1.8V, f = 1MHz, See Test Circuit Figure 7.  
VDD=1.8V, f = 1MHz, See Test Circuit Figure 7.  
-
-
-
-
14  
14  
35  
35  
-
-
-
-
pF  
2015-10-0009  
PT0541-4  
11/03/15  
3
PI3A288  
Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch  
with Negative Signal Handling Capability  
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  
Test Circuits and Timing Diagrams  
Figure 1, On Resistance  
CSSCAP  
0.01uF  
Figure 2, COM-NC/NO Isolation  
CSSCAP  
0.01uF  
Figure 3, NC-NO Isolation  
2015-10-0009  
PT0541-4  
11/03/15  
4
PI3A288  
Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch  
with Negative Signal Handling Capability  
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  
CSSCAP  
0.01uF  
Figure 4, Channel-to-Channel Crosstalk  
CSSCAP  
0.01uF  
Figure 5, Bandwidth  
CSSCAP  
0.01uF  
Figure 6, Channel Off Capacitance  
2015-10-0009  
PT0541-4  
11/03/15  
5
PI3A288  
Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch  
with Negative Signal Handling Capability  
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  
CSSCAP  
0.01uF  
Figure 7, Channel On Capacitance  
TYPICAL CHARACTERISTICS  
THD vs Amp (Vrms)  
THD vs Freq  
-90  
-95  
-104  
-106  
-108  
-110  
-112  
-114  
-116  
-118  
0
0.5  
1
1.5  
2
100  
1000  
10000  
100000  
-100  
-105  
-110  
-115  
THD_1KHz_32ohm at 1.8Vdd  
THD_1KHz_32ohm at 3.1Vdd  
thd_0.5Vrms_32ohm at 1.8Vdd  
thd_0.5Vrms_32ohm at 3.1Vdd  
Figure 8, THD vs signal frequency  
Figure 9, THD vs signal amplitude  
Figure 10, Soft-start with CSSCAP = 10nF, VNC = + 50mV,  
Figure 11, Soft-start with CSSCAP = 10nF, VNC = - 50mV,  
VNO = 0V  
VNO = 0V  
Channel 1 = COM  
Channel 2 = SSCAP  
Channel 3 = IN  
Channel 1 = COM  
Channel 2 = SSCAP  
Channel 3 = IN  
2015-10-0009  
PT0541-4  
11/03/15  
6
PI3A288  
Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch  
with Negative Signal Handling Capability  
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  
Crosstalk and Off isolation  
0
10000  
-10  
100000  
1000000  
10000000  
100000000  
1000000000  
-20  
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
Frequency (Hz)  
Off Isolation  
Crosstalk  
Figure12, Crosstalk and Isolation  
Typical Application Circuit  
GPIO  
VCC=1.8V  
R1  
IN  
200  
C1  
0.1uF  
VDD  
NO1  
NC1  
Negative Swing  
Amplifier  
COM2  
COM1  
Audio Connector  
NO2  
NC2  
Negative Swing  
Amplifier  
SSCAP  
CT  
0.01uF  
Figure12, Crosstalk and Isolation  
Function Description  
The PI3A288 is an ultra-small, ultra-low THD , low on-resistance, high ESD-protected DPDT switch that operates  
from a +1.65V to 4.3V supply. These switches feature the low on-resistance (RON) necessary for high-performance  
switching applications. The Beyond-the-Rails signal capability of the PI3A288 allows signals below ground and above  
VCC to pass without distortion.  
Analog Signal Levels  
The topology of the switches allows the signal to drop below ground without the need of an external negative voltage  
supply. The devices can also withstand analog signal levels of 2Vrms. in the case of lower VDD voltage.  
Digital Control Input  
The PI3A288 provides a single-bit control logic input, IN. IN controls the switch position. The logic control inputs can  
be driven up to +4.3V regardless of the supply voltage. For example, given a +3.3V supply, the  
output enables or select pins may be driven to low to 0V and high to 4.3V.  
2015-10-0009  
PT0541-4  
11/03/15  
7
PI3A288  
Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch  
with Negative Signal Handling Capability  
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  
Click and Pop Operation  
The PI3A288 can pass ground referenced audio signals which allows it to be directly connected to audio drivers that  
output ground referenced audio signals, eliminating the need for a DC blocking capacitor. Audio drivers that swing  
around ground, however, do generate some DC offset, from a few millivolts to tens of millivolts. When switching  
between audio channels or muting the audio signal, these small DC offset levels of the drivers can lead to a voltage  
step across the speaker loads and create unwanted clicks and pops.  
The PI3A288 has a special soft-start feature that slowly ramps the DC offset voltage from the audio driver to the  
speaker load when turning on a switch channel. The ramp rate at the load is determined by the capacitor value  
connected at the SSCAP pin. A soft-start capacitor value of 0.01μF provides obvious effect of eliminating pop-click  
noise and is recommended.  
2015-10-0009  
PT0541-4  
11/03/15  
8
PI3A288  
Ultra-Low-THD Dual-SPDT (0.35Ω) Analog Switch  
with Negative Signal Handling Capability  
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  
Mechanical Information 10-pin UQFN (ZM10)  
Ordering Information  
Part No.  
Package Code  
Package  
Lead free and Green 10-pin UQFN1.8x1.4  
Tape & reel  
PI3A288ZMEX  
ZM  
Note:  
E = Pb-free and Green  
Adding X Suffix= Tape/Reel  
Pericom Semiconductor Corporation 1-800-435-2336 www.pericom.com  
Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply  
the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The  
company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom.  
2015-10-0009  
PT0541-4  
11/03/15  
9

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