Analog Switch. RT9737 Datasheet

RT9737 Switch. Datasheet pdf. Equivalent

RT9737 Datasheet
Recommendation RT9737 Datasheet
Part RT9737
Description 5V Capable Low-Voltage DPDT Analog Switch
Feature RT9737; RT9737 5V Capable Low-Voltage DPDT Analog Switch General Description RT9737 is a 5V high quality l.
Manufacture Richtek
Datasheet
Download RT9737 Datasheet




Richtek RT9737
RT9737
5V Capable Low-Voltage DPDT Analog Switch
General Description
RT9737 is a 5V high quality low-voltage double-pole
double-throw (DPDT) analog switch. RT9737 supply
voltage is designed to operate from 2.5V to 5.5V.
Supply voltage can be smaller than input voltage while
keeping 5V input range. With 70mturn-on resistance,
power-loss and signal distortion can be minimized.
RT9737 is ideal for switching audio signal from outputs
of audio amplifiers. The break-before-make feature
prevents signal distortion during the transferring of a
signal from one path to another for audio applications.
Ordering Information
RT9737
Package Type
WSC : WL-CSP-9B 1.24x1.24 (BSC)
Note :
Richtek products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes
Marking Information
Features
Maximum Input Signal Range 0 to 5.5V
70mTurn-On Resistance
2.5V to 5.5V Supply Voltage
40A Quiescent Current
Break-Before-Make Between Channel Transition
Available in 9Ball WL-CSP Package
Applications
Smartphone
Tablet
Pin Configurations
(TOP VIEW)
INA1 A1 A2 A3 INB1
OUTA B1 B2 B3 OUTB
GND
INA2 C1 C2 C3 INB2
WL-CSP-9B 1.24x1.24 (BSC)
1PW
1P : Product Code
W : Date Code
Simplified Application Circuit
Audio
Amplifier 1
Audio
Amplifier 2
SEL
RT9737
INA1
INB1
INA2
INB2
SEL
OUTA
OUTB
VDDEN
GND
Audio
Connector
CVDDEN
Copyright © 2014 Richtek Technology Corporation. All rights reserved.
DS9737-00 February 2014
is a registered trademark of Richtek Technology Corporation
www.richtek.com
1



Richtek RT9737
RT9737
Functional Pin Description
Pin No.
Pin Name
A1 INA1
Input 1 of Channel A.
A2 SEL
Selection for Input 1or 2.
A3 INB1
Input 1 of Channel B.
B1 OUTA
Output of Channel A.
B2 GND
Ground.
B3 OUTB Output of Channel B.
C1 INA2
Input 2 of Channel A.
C2
VDDEN
Supply Voltage.
C3 INB2
Input 2 of Channel B.
Function Block Diagram
Pin Function
INA1
INB1
INA2
INB2
SEL
OUTA
OUTB
VDDEN
GND
Operation
The switches are fully specified to operate from a
single 2.5V to 5.5V power supply. RT9737 via internal
design, be able to handle when the input signal is
greater than the supply voltage range and don't cause
the signal distortion. RT9737 control the switches with
a control pin, SEL. When SEL voltage under low level,
internal switch is thrown to position 1. Audio signal are
via INA1 and INB1 to IC OUTA and OUTB. And then
OUTA, OUTB output to the load and Audio connector.
When SEL voltage above high level, internal switch is
thrown to position 2. When the supply voltage VDDEN
under operation range, the switches impedance are
risen and all analog signal ports can keep out signals
from 0V to 5.5V.
Copyright © 2014 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation
DS9737-00 February 2014



Richtek RT9737
RT9737
Absolute Maximum Ratings (Note 1)
VDDEN, INA1, INA2, INB1, INB2, OUTA, OUTB, SEL------------------------------------------------- 0.3 to 6V
Power Dissipation, PD @ TA = 25C
WL-CSP-9B 1.24x1.24 (BSC)-------------------------------------------------------------------------------- 1.28W
Package Thermal Resistance (Note 2)
WL-CSP-9B 1.24x1.24 (BSC), JA ------------------------------------------------------------------------ 78.1°C/W
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------- 260C
Junction Temperature ----------------------------------------------------------------------------------------- 150C
Storage Temperature Range -------------------------------------------------------------------------------- 65C to 150C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ----------------------------------------------------------------------------------- 2kV
MM (Machine Model)------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
Supply Input Voltage, VDDEN-------------------------------------------------------------------------------- 2.5V to 5.5V
Junction Temperature Range--------------------------------------------------------------------------------- 40C to 125C
Ambient Temperature Range --------------------------------------------------------------------------------- 40C to 85C
Electrical Characteristics
(VDDEN = 2.5V, CVDDEN = 0.1μF, TA= 25C, for each LDO unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Power Supply
Power Supply Range
VDDEN
2.5 -- 5.5 V
Power Supply Rejection Ratio PSRR Vp-p = 200mV, f = 20kHz, RL = 32(Note 5) -- 80 -- dB
Quiescent Current
IQ VDDEN = 2.5V to 5.5V
-- 40 60 A
Analog Switch
Input Signal Range
0 -- 5.5 V
Turn-On Resistance
Off-State Leakage Current
RDS(ON)
VDDEN = 2.5V, OUT = 0V, IOUT =100mA
VDDEN = 3.6V, OUT = 0V, IOUT= 100mA
INA, INB, OUTA, OUTB, VDDEN = 5.5V
INA, INB, OUTA, OUTB = 5.5V, VDDEN = 0V
-- 90 125 m
-- 70 100 m
-- 1.2 1.5 A
0.12 0.2 A
Turn-On Time
Turn-Off Time
Break-Before-Make Time
Off-Isolation (Note 5)
tON
tOFF
tBBM
Crosstalk (Note 5)
THD+N (Note 5)
-3dB Bandwidth (Note 5)
INA/INB Capacitance
OUTA/OUTB Capacitance
INA, INB = 0V
-- 5 10 ms
INA, INB = 0V (Note 5)
-- -- 100 s
INA, INB = 0V
-- 5 10
VDDEN = 0V, RL = 50, INA/INB = 0.5Vpp,
20kHz
--
50
--
RL = 50, INA/INB = 0.5Vpp, 20kHz
-- 80 --
RL = 50, INA/INB = 0.5Vpp, 1kHz, DC bias =
0.25V
--
0.001
--
ms
dB
dB
%
RL = 50
-- 2 -- MHz
INA /INB = 0.5VP-P, f = 1MHz (Note 5)
-- 70 -- pF
INA /INB = 0.5VP-P, f = 1MHz (Note 5)
-- 120 -- pF
Copyright © 2014 Richtek Technology Corporation. All rights reserved.
DS9737-00 February 2014
is a registered trademark of Richtek Technology Corporation
www.richtek.com
3







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)