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PDF PI5A4764 Data sheet ( Hoja de datos )
| Número de pieza | PI5A4764 | |
| Descripción | Dual SPDT Audio Clickless Analog Switch | |
| Fabricantes | Pericom Semiconductor | |
| Logotipo |  |
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PI5A4764
Small Package, Dual SPDT Audio Clickless Analog 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: -53dB
• Crosstalk Rejection Reduces Signal Distortion: -84dB
• Break-Before-Make Switching
• Low THD (0.017% @ VCC = 2.7V)
• Extended Industrial Temperature Range: –40°C to 85°C
• Packaging (Pb-free & Green):
- 10-ball CSP
Description
Pericom Semiconductor's PI5A4764 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
PI5A4764 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 PI5A4764 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 and Video Signal Routing
• PCMCIA Cards
• Modems
Pin Configuration /Block Diagram (top view) CSP
NO2 C1
VCC
B1
A1 NO1
COM2 C2
SHUNT
SWITCH
A2 COM1
NC2 C3
A3 NC1
IN2 C4
B4
GND
A4 IN1
Pin Description
Pin #
Name
A1, C1
NOX
B1 VCC
A3, C3
NCX
B4 GND
A2, C2 COMX
A4, C4
INX
Description
Data Port (Normally open)
Positive Power Supply
Data Port (Normally closed)
Ground
Common Output/Data Port
Logic Control
Logic Function Table
Logic Input (INX)
Function
0 NCX Connected to COMX
1 NOX Connected to COMX
Note:
1. x = 1, or 2
1
PS8790
10/20/05
1 page  
PI5A4764
Small Package, Dual SPDT Audio Clickless Analog Switch
Test Circuits and Timing Diagrams
VN NC
or NO
LOGIC
INPUT
IN
GND
VCC
VCC
COM
VOUT
RL CL
50Ω 35pF
Notes:
1. Unused input (NC or NO) must be grounded.
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 1. AC Test Circuit
Logic VIH
Input VIL
Switch
Output 0V
Off 50% On
VOUT
90%
tON
Off
tOFF
tr < 5ns
tf < 5ns
90%
Logic Input Waveforms inverted for
Switches that have opposite logic
* 1.5V for 3.3V Supply
Figure 2. AC Waveforms
VIN
Logic
Input
NC
COM
NO
A
VOUT
RL CL
50Ω 35pF
Logic
Input
VOUT
50%
tBBM
0.9 x VOUT
Figure 3. Break Before Make Interval Timing
5
PS8790
10/20/05
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet PI5A4764.PDF ] | |
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