参数资料
型号: PI5A4765
厂商: Pericom Semiconductor Corp.
英文描述: Low Voltage Dual SPDT Audio Clickless Analog Switch with Headphone/Mute Detection 2:1 Mux/DeMux Bus Switch
中文描述: 低电压双路SPDT模拟开关音频无杂音与耳机/静音检测2:1复用/解复用总线开关
文件页数: 1/7页
文件大小: 325K
代理商: PI5A4765
www.DataSheet4U.com
1
P-0.9 08/02/05
ADVANCE INFORMATION - COMPANY CONFIDENTIAL
Features
CMOS Technology for Bus and Analog Applications
Low On-Resistance: 0.6 @ 2.7V.
Wide V
CC
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
Applications
Cell Phones
PDAs
MP3 players
Portable Instrumentation
Computer Peripherals
Speaker Headset Switching
PI5A4765
Low Voltage Dual SPDT Audio Clickless Analog Switch
with Headphone/Mute Detection
2:1 Mux/DeMux Bus Switch
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 0.6 @ 2.7V.
Break-before-make switching prevents both switches being
enabled simultaneously. This eliminates signal disruption during
switching. The control input, IN
X
, 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 V
CC
/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.
Audio/Video Signal Routing
PCMCIA Cards
Modems
Pin Configuration / Block Diagram (top view)
NC2
COM2
NO2
IN2
VCC
B1
C1
C2
C3
C4
GND
B4
NC1
COM1
NO1
IN1
A1
A2
A3
A4
VCC
COMP-
COMP0
B2
MUTE
-
+
B3
VCC
3
SHUNT
SWITCH
Function Table
Logic Input (IN
X
)
Function
0
1
NC
X
Connected to COM
X
NO
X
Connected to COM
X
Pin Description
Pin #
Pin # CSP
A1, C1
B1
A3, C3
B4
A2, C2
B2
B3
A4, C4
Name
NO
X
V
CC
NC
X
GND
COM
X
COMP0
COMP-
IN
X
Description
Data Port (Normally open)
Positive Power Supply
Data Port (Normally closed)
Ground
Common Output/Data Port
Comparator Output
Comparator Input
Logic Control
Note
:
1.
x = 1, or 2
Note
:
1.
x = 1, or 2
Power Routing
Relay Replacement
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PI5A4765GAE 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:Low Voltage Dual SPDT Audio Clickless Analog Switch with Headphone/Mute Detection 2:1 Mux/DeMux Bus Switch
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