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PI5A4765
Low Voltage Dual SPDT Audio Clickless Analog Switch with Headphone/Mute Detection 2:1 Mux/DeMux Bus Switch
Features
• • • • • • • • • • CMOS Technology for Bus and Analog Applications Low On-Resistance: 0.6Ω @ 2.7V. Wide VCC Range: 1.65V to 5.5V Rail-to-Rail Signal Range Control Input Overvoltage Tolerance: 5.5V min. High Off Isolation: -50dB Crosstalk Rejection Reduces Signal Distortion: -80dB Break-Before-Make Switching Extended Industrial Temperature Range: –40°C to 85°C Packaging (Pb-free & Green available): -12-ball CSP
Description
Pericom Semiconductors PI5A4765 is a dual high-bandwidth, fast single-pole double throw (SPDT) CMOS switch. It can be used as an analog switch or as a low-delay bus switch. Specified over a wide operating power supply voltage, 1.65V to 5.5V, the PI5A4765 has a low On-Resistance of 0.6Ω @ 2.7V. Break-before-make switching prevents both switches being enabled simultaneously. This eliminates signal disruption during switching. The control input, INX, tolerates input drive signals up to 6.0V, independent of supply voltage. The PI5A4765 offers a headphone & mute detection function through utilization of an on-chip comparator. When the negative terminal of the comparator (COMP-) is less than the threshold (internally set to VCC/3, COMP0 (comparator output) is a logic high. A logic low on COMP0 occurs when COMP- rises above the the threshold. PI5A4765 also offers shunt switches connected to ground in order to dissipate capacitance that builds up on the unconnected NC or NO line. As a result, reduction of popping and clicking sounds is achieved when switching between audio sources.
Applications
• Cell Phones • PDAs • MP3 players • Portable Instrumentation • Computer Peripherals • Speaker Headset Switching • Power Routing • Relay Replacement • Audio/Video Signal Routing • PCMCIA Cards • Modems
Pin Configuration / Block Diagram (top view) Pin Description
Pin # Pin # CSP
A1, C1 B1 A3, C3 B4 A2, C2 B2 B3 A4, C4 Note: 1. x = 1, or 2
VCC B1
SHUNT SWITCH
Name
NOX VCC NCX GND COMX COMP0 COMPINX
Description
Data Port (Normally open) Positive Power Supply Data Port (Normally closed) Ground Common Output/Data Port Comparator Output Comparator Input Logic Control
NO2
C1
A1
NO1
COM2
C2
COMP0 B2
A2
COM1
NC2
C3
-
+
VCC 3
A3
NC1
B3 COMPIN2
Function Table
Logic Input (INX) 0 1 Note: 1. x = 1, or 2 Function NCX Connected to COMX NOX Connected to COMX
C4
B4
GND
VCC
A4
IN1
MUTE
1
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ADVANCE INFORMATION - COMPANY CONFIDENTIAL
Low Volt. Dual SPDT Analog Switch 2:1 Mux/DeMux Bus Switch (w/Comparator & Shunt Switches)
PI5A4765
Absolute Maximum Ratings(1)
Supply Voltage VCC ............................................ –0.5V to +7V DC Switch Voltage (VS)(2) ........................ –0.5V to VCC +0.5V DC Input Voltage (VIN)(2) ................................ –0.5V to +7.0V DC Output Current (VOUT) ........................................... 128mA DC VCC or Ground Current (ICC/IGND) ....................... ±100mA Storage Temperature Range (TSTG) .............. –65°C to +150°C Junction Temperature under Bias (TJ) .............................150°C Junction Lead Temperature (TL) (Soldering, 10 seconds) ................................................260°C Power Dissipation (PD) @ +85°C .................................. 180mW
Recommended Operating Conditions(3)
Supply Voltage Operating (VCC) . . . . . . . . . . . . 1.65V to 5.5V Control Input Voltage (VIN) . . . . . . . . . . . . . . . . . . . 0V to VCC Switch Input Voltage (VIN) . . . . . . . . . . . . . . . . . . . . 0V to VCC Output Voltage (VOUT) . . . . . . . . . . . . . . . . . . . . . . . 0V to VCC Operating Temperature (TA) . . . . . . . . . . . . . . . –40°C to +85°C Input Rise and Fall Time (tr,tf) Control Input VCC = 2.3V - 3.6V. . . . . . . . . 0ns/V to 10ns/V Control Input VCC = 4.5V - 5.5V. . . . . . . . . . 0ns/V to 5ns/V Thermal Resistance (θJA) . . . . . . . . . . . . . . . . . . . . . . 350°C/W
Notes: 1. Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. 2. The input and output negative voltage ratings may be exceeded if the inut and output diode current ratings are observed. 3. Control input must be held HIGH or LOW; it must not float.
2
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Low Volt. Dual SPDT Analog Switch 2:1 Mux/DeMux Bus Switch (w/Comparator & Shunt Switches)
PI5A4765
DC Electrical Characteristics +3V Supply
Parameter Symbol
(VCC = 2.7V to 3.3V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at 3V and +25°C.) Test Conditions TA Min. Typ. Max. Units
Analog Switch
Analog Signal Range NC On-Resistance NO On-Resistance On-Resistance Match Between Channels NC On-Resistance Flatness NO On-Resistance Flatness Shunt Switch Resistance NO or NC Off Leakage Current COM On Leakage Current VNO , VNC , VCOM RON(NC) RON(NO) ∆RON RONF(NC) RONF(NO) RSH IOFF (NO) or IOFF (NC) ICOM (ON) VCC = 2.7V, ICOM = 100mA, VNC = 0 toVCC VCC = 2.7V, ICOM = 100mA, VNO = 0 to VCC VCC = 2.7V, ICOM = 100mA, VNO or VNC = 1.5V VCC = 2.7V, ICOM = 100mA, VNC = 0 to VCC VCC = 2.7V, ICOM = 100mA, VNO = 0 to VCC INO or INC = 10mA, VCC = 2.7V VCC = 2.7V, VNC or VNO = 0.3V, +2.5V, VCOM = +2.5V, 0.3V VCC = 2.7V, VNC or VNO = 0.3V, +2.5V, VCOM = +2.5V, 0.3V -40°C to 85°C 25°C -40°C to 85°C 25°C -40°C to 85°C 25°C -40°C to 85°C 25°C 25°C -40°C to 85°C 25°C -40°C to 85°C 25°C -40°C to 85°C -10 -80 -20 -160 0 0.5 0.6 05 0.6 .001 .002 .25 .25 30 10 80 20 160 nA 0.4 0.4 Ω VCC V
Digital I/O
Input Logic High Input Logic Low IN Input Leakage Current VIH VIL IIN VCC = 2.7V to 3.6V VCC = 4.2V to 5.5V VCC = 2.7V to 3.6V VCC = 4.2V to 5.5V VIN = 0 or VCC -40°C to 85°C -40°C to 85°C -40°C to 85°C -1 1.8 2.0 0.6 0.8 1 µA V
Power Supply
Power-Supply Range Supply Current VCC ICC VCC = 5.5V, VIN = 0 or VCC -40°C to 85°C 25°C 1.65 4.0 5.5 10.0 V µA
Comparator
Comparator Output High Voltage Comparator Output Low Voltage Comparator Input Leakage Current Comparator Switching Time Comparator Power Supply Range Comparator Threshold ISOURCE = 1mA ISINK = 1mA VCMP- = 0 to 2.7V VCC = 2.7V, VCMP- = 0V to VCC, from 50% of VCMP- to 50% of VCMP0 1.8 VCC 3 3 1 2.3 0.4 80 2 5.5 V V nA µS V V
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Low Volt. Dual SPDT Analog Switch 2:1 Mux/DeMux Bus Switch (w/Comparator & Shunt Switches)
PI5A4765
Switch and AC Characteristics
Parameter
Turn-On Time
Symbol
tON
Test Conditions
VCC = 2.7V, VNO or VNC = 1.5V, RL = 50Ω, CL = 35pF, See Test Circuit Fig. 1 & 2 VCC = 2.7V, VNO or VNC = 1.5V, RL = 50Ω, CL = 35pF, See Test Circuit Fig. 1 & 2 VCC = 2.7V, VNO or VNC = 1.5V, RL = 50Ω, CL = 35pF, See Test Circuit Fig. 3 COM = 0, RS = 0, CL = 1nF, See Test Circuit Fig. 4 CL = 5pF, RL = 50Ω, f = 100kHz, VCOM = 1 VRMS, See Test Circuit Fig. 5 CL = 5pF, RL = 50Ω, f = 100kHz, VCOM = 1 VRMS, See Test Circuit Fig. 6 See Test Circuit Fig. 9
TA
25°C -40°C to 85°C 25°C -40°C to 85°C 25°C 25°C 25°C 25°C
Min.
Typ.
25.0
Max.
80.0 80.0
Units
Turn-Off Time Break-Before-Make Delay Charge Injection Off-Isolation Crosstalk 3dB Bandwidth
tOFF
6
70.0 70.0
ns
tBBM Q OIRR XTALK f3dB
21 47 -53 dB -84 35 MHz pC
Capacitance
Parameter NC On Capacitance NO On Capacitance Symbol CNC (ON) CNO (ON) Test Conditions f = 1MHz, See Test Circuit Fig. 8 f = 1MHz, See Test Circuit Fig. 8 TA 25°C 25°C Min. Typ. 168 168 Max. Units
pF
4
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Low Volt. Dual SPDT Analog Switch 2:1 Mux/DeMux Bus Switch (w/Comparator & Shunt Switches)
PI5A4765
Test Circuits and Timing Diagrams
VCC
VCC COM
RL IN LOGIC INPUT GND
VN
NC or NO
VOUT
CL
50Ω
35pF
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Notes: 1. Unused input (NC or NO) must be grounded.
Figure 1. AC Test Circuit
Logic Input
VIH VIL Off 50% On VOUT Off tOFF 90% tON Logic Input Waveforms inverted for Switches that have opposite logic * 1.5V for 3.3V Supply 90%
tr < 5ns tf < 5ns
Switch Output 0V
Figure 2. AC Waveforms
VIN
NC NO
COM
VOUT RL 50Ω CL 35pF
Logic Input VOUT
50%
A Logic Input
0.9 x VOUT t BBM
Figure 3. Break Before Make Interval Timing
5
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ADVANCE INFORMATION - COMPANY CONFIDENTIAL
Low Volt. Dual SPDT Analog Switch 2:1 Mux/DeMux Bus Switch (w/Comparator & Shunt Switches)
PI5A4765
RGEN
NC or NO
A CL 1nF
VOUT
Logic Input
OFF
ON
OFF
VGEN
IN Logic Input Q = (∆V OUT )(CL )
∆V OUT
Figure 4. Charge Injection Test
VCC 10nF
VCC 10nF
50Ω
50Ω
COM VCC Logic Input 0V or VIH
Signal Generator
Signal Generator
NC NO
VCC
COM
50Ω
IN
or NC
NO
Analyzer
GND
Analyzer
GND
IN
CL 5pF
RL
50Ω
CL 5pF
RL
50Ω
Figure 5. Off Isolation
Note: 1. Crosstalk measure from one channel to the pins of the other channel.
Figure 6. Crosstalk
VCC 10nF
VCC 10nF
COM Capacitance Meter f = 1 MHz NO
or NC
VCC Logic Input 0V or VIH
Capacitance Meter f = 1 MHz
IN
COM
VCC Logic Input 0V or VIH
IN NO
or NC
GND
GND
Figure 7. Channel Off Capacitance
Figure 8. Channel On Capacitance
6
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ADVANCE INFORMATION - COMPANY CONFIDENTIAL
Low Volt. Dual SPDT Analog Switch 2:1 Mux/DeMux Bus Switch (w/Comparator & Shunt Switches)
PI5A4765
VCC 10nF
50Ω
Signal Generator
Logic Input 0V or VIH
NC or NO IN
VCC
COM
ANALYZER
50Ω
GND
Figure 9. Bandwidth
Packaging Mechanical : 2x1.5mm CSP
2.00 ± 0.05
Pin 1 Indicator
1.50 ± 0.05
0.60 ± 0.05 0.27 ± 0.03
0.33 REF
Product Marking
TOP VIEW
1.5 Basic 0.25 Basic
0
