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to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
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Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON
Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended
or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out
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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
January 2015
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA644 • Rev. 1.17
FSA644 — 2:1 MIPI D-PHY (1.5Gbps) 4-Data-Lane Switch
FSA644 — 2:1 MIPI D-PHY (1.5Gbps) 4-Data Lane Switch
Features
Switch Type
SPDT (10x)
Signal Types
MIPI, D-PHY
VCC
1.65 to 4.5 V
Input Signals
0 to VCC
RON
6 Ω Typical HS MIPI
8 Ω Typical LP MIPI
∆RON
0.6 Ω Typical HS & LP MIPI
RON_FLAT
0.3 Ω Typical
ICCZ
0.5 µA Maximum
ICC
32 µA Maximum
OIRR
-40 dB Typical
XTALK
-25 dB Typical
Bandwidth
1100 MHz Minimum
Channel-to-Channel Skew
6 ps Typical
CON
5.2 pF
Operating Temperature
-40 to +85°C
Package
36-Ball WLCSP
FSA644UCX Top Mark
M7
Ordering Information
FSA644UCX
FSA644BUCX Top Mark
KM
Ordering Information
FSA644BUCX
Description
The FSA644 is a four-data-lane, MIPI, D-PHY switch. This
single-pole, double-throw (SPDT) switch is optimized for
switching between two high-speed or low-power MIPI
sources. The FSA644 is designed for the MIPI specification
and allows connection to a CSI or DSI module.
Applications
Cellular Phones, Smart Phones
Displays
Related Resources
FSA644 Demonstration Board
Typical Application
Figure 1. Mobile Phone Example
FSA644
4-Data Lane
MIPI Switch
MIPI
Module #1
CSI / DSI
MIPI
Module #2
CSI / DSI
Processor
CLK
Data [1:4]
CLK
Data [1:4]
CLK
Data [1:4]
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA644 • Rev. 1.17 2
FSA644 — 2:1 MIPI D-PHY (1.5Gbps) 4-Data-Lane Switch
Pin Descriptions
Pin Name
CLKP/N
D1P/N
D2P/N
D3P/N
D4P/N
CLKAP/N
DA1P/N
DA2P/N
DA3P/N
DA4P/N
CLKBP/N
DB1P/N
DB2P/N
DB3P/N
DB4P/N
SEL
Control
Pin
SEL=0
CLKP=CLKAP, CLKN=CLKAN,
Dn(P/N)=DAn(P/N)
SEL=1
CLKP=CLKBP, CLKN=CLKBN,
Dn(P/N)=DBn(P/N)
/OE
VCC
GND
NC
Figure 2. Analog Symbol
CLKAP
CLKBP CLKP
CLKN
D1P
D1N
SEL
D2P
D2N
D3P
D3N
D4P
D4N
/OE
CLKAN
CLKBN
DA1P
DB1P
DA1N
DB1N
DA2P
DB2P
DA2N
DB2N
DA3P
DB3P
DA3N
DB3N
DA4P
DB4P
DA4N
DB4N
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA644 • Rev. 1.17 3
FSA644 — 2:1 MIPI D-PHY (1.5Gbps) 4-Data-Lane Switch
Pin Definitions
D2N
CLKN
/OE
D3P
D3N CLKBN CLKBP
D4N D4P DB4P DB3P DB1N DB1P
DB4N DB3N DB2N DB2P
CLKAP DA1P DA2P DA2N
D1N
CLKP
CLKAN DA1N DA3P DA3N
D2P
D1P
SEL
VCC DA4P DA4N
A
B
C
D
E
F
1 2 3 4 5 6
GND NC
NC
Figure 3. Top Through View
Table 1. Ball-to-Pin Mappings
Ball
Pin Name
A1
CLKN
A2
CLKP
A3
CLKAP
A4
DA1P
A5
DA2P
A6
DA2N
B1
D1N
B2
D1P
B3
CLKAN
B4
DA1N
B5
DA3P
B6
DA3N
C1
D2N
C2
D2P
C3
NC
C4
VCC
C5
DA4P
C6
DA4N
D1
D3N
D2
D3P
D3
GND
D4
NC
D5
CLKBN
D6
CLKBP
E1
D4N
E2
D4P
E3
DB4P
E4
DB3P
E5
DB1N
E6
DB1P
F1
/OE
F2
SEL
F3
DB4N
F4
DB3N
F5
DB2N
F6
DB2P
Truth Table
SEL
/OE
Function
LOW
LOW
CLKP=CLKAP, CLKN=CLKAN, Dn(P/N)=DAn(P/N)
HIGH
LOW
CLKP=CLKBP, CLKN=CLKBN, Dn(P/N)=DBn(P/N)
X
HIGH
DAn(P/N), DBn(P/N) Data Ports High Impedance
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA644 • Rev. 1.17 4
FSA644 — 2:1 MIPI D-PHY (1.5Gbps) 4-Data-Lane Switch
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable
above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition,
extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute
maximum ratings are stress ratings only.
Symbol
Parameter
Min.
Max.
Unit
VCC
Supply Voltage
-0.50
+5.25
V
VCNTRL
DC Input Voltage (/OE)(1)
-0.5
VCC
V
VSW
DC Switch I/O Voltage(1)
-0.50
5.25
V
IIK
DC Input Diode Current
-50
mA
IOUT
DC Output Current
50
mA
TSTG
Storage Temperature
-65
+150
°C
ESD
Human Body Model, JEDEC: JESD22-A114
All Pins
3.5
kV
I/O to GND
3.5
Power to GND
8.0
Charged Device Model, JEDEC: JESD22-C101
1.5
IEC 61000-4-2 System
Contact
8.0
Air Gap
15.0
Note:
1. The input and output negative ratings may be exceeded if the input and output diode current ratings are observed.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating
conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend
exceeding them or designing to Absolute Maximum Ratings.
Symbol
Parameter
Min.
Max.
Unit
VCC
Supply Voltage
1.65
4.50
V
VCNTRL
Control Input Voltage (S, /OE)(2)
0
VCC
V
VSW
Switch I/O Voltage (CLKn, CLKAn, CLKBn, Dn,
DAn, DBn)
HS Mode
0.1
0.3
V
LP Mode
0
1.2
TA
Operating Temperature
-40
+85
°C
Note:
2. The control input must be held HIGH or LOW; it must not float.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA644 • Rev. 1.17 5
FSA644 — 2:1 MIPI D-PHY (1.5Gbps) 4-Data-Lane Switch
DC Electrical Characteristics
All typical values are at TA=25°C unless otherwise specified.
Symbol
Parameter
Conditions
VCC (V)
TA=- 40ºC to +85ºC
Unit
Min.
Typ.
Max.
VIK
Clamp Diode Voltage
IIN=-18 mA
2.8
-1.2
V
VIH
Input Voltage High
1.65 to 4.50
1.0
V
VIL
Input Voltage Low
1.65 to 4.50
0.4
V
IIN
Control Input Leakage
(SEL,/OE)
VSW=0 to VCC
1.65 to 4.50
-100
100
nA
INO(OFF), INC(OFF)
Off Leakage Current of Port
CLKAn, DAn, CLKBn, DBn
CLKn, Dn=0.3 V; VCC-0.3 V;
CLKAn, DAn, or CLKBn;
DBn= VCC-0.3 V, 0.3 V, or
Floating; /OE=0 V
1.65 to 4.50
-100
100
nA
IA(ON)
On Leakage Current of
Common Ports (CLKn, Dn)
CLKn, Dn = 0.3 V; VCC-0.3 V;
CLKAn, DAn, or CLKBn;
DBn=VCC-0.3 V, 0.3 V, or
Floating; /OE=0 V
1.65 to 4.50
-100
100
nA
IOFF
Power-Off Leakage Current
CLKn, Dn, or CLKAn; DAn or
CLKBn, DBn; VIN=0 V to
4.5 V; VCC=0 V
0
-100
100
nA
IOZ
Off-State Leakage
0 ≤ CLKn, Dn, CLKAn,
CLKBn, DAn, DBn ≤ 3.6 V,
/OE=High
4.5
-100
100
nA
RON_MIPI_HS
Switch On Resistance for
HS MIPI Applications(3)
ION=-10 mA, /OE=0 V,
SEL=VCC or 0V, CLKA, B, DBn
or DAn=0.1, 0.2, 0.3
1.8
7
12
Ω
2.5
6
9
3.6
6
9
4.5
6
9
RON_MIPI_LP
Switch On Resistance for
LP MIPI Applications(3)
ION=-10 mA, /OE=0 V,
SEL=VCC or 0V, CLKA, B, DBn
or DAn=0, 0.6, 1.2 V
1.8
6.7
12.0
Ω
2.5
6.4
9.0
3.6
6.2
9.0
4.5
6.0
9.0
∆RON_MIPI_HS
On Resistance Matching
Between HS MIPI
Channels(4)
ION=-10 mA, /OE=0 V,
SEL=VCC or 0 V, CLKA, B, DBn
or DAn=0.1, 0.2, 0.3
1.8
0.8
Ω
2.5
0.6
3.6
0.5
4.5
0.5
∆RON_MIPI_LP
On Resistance Matching
Between LP MIPI
Channels(4)
ION=-10 mA, /OE=0 V,
SEL=VCC or 0 V, CLKA,B, DBn
or DAn= 0.0, 0.6, 1.2 V
1.8
0.8
Ω
2.5
0.6
3.6
0.5
4.5
0.5
RON_FLAT_MIPI_HS
On Resistance Flatness for
HS MIPI Signals(4)
ION=-10 mA, /OE=0 V,
SEL=VCC or 0 V, CLKA, B, DBn
or DAn=0.1, 0.2, 0.3
1.8
1.5
Ω
2.5
0.5
3.6
0.3
4.5
0.2
RON_FLAT_MIPI_LP
On Resistance Flatness for
LP MIPI Signals(4)
ION=-10 mA, /OE=0 V,
SEL=VCC or 0 V, CLKA, B, DBn
or DAn=0.0, 0.6, 1.2 V
1.8
35
Ω
2.5
2
3.6
1
4.5
0.5
Continued on the following page…
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA644 • Rev. 1.17 6
FSA644 — 2:1 MIPI D-PHY (1.5Gbps) 4-Data-Lane Switch
DC Electrical Characteristics
All typical values are at TA=25°C unless otherwise specified.
Symbol
Parameter
Conditions
VCC (V)
TA=- 40ºC to +85ºC
Unit
Min.
Typ.
Max.
ICCZ
Quiescent Hi-Z Supply
Current
VIN=0 or VCC, IOUT=0
4.5
0.5
µA
ICC
Quiescent Supply Current
VIN=0 or VCC, IOUT=0
2.5 to 4.5
32
µA
1.8
22
ICCT
Increase in ICC Current Per
Control Voltage and VCC
VSEL,/OE=1.65 V
4.5
4
µA
2.5
0.1
Notes:
3. Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is
determined by the lower of the voltage on the two (A or B ports).
4. Guaranteed by characterization.
AC Electrical Characteristics
All typical values are for VCC=3.3V at TA=25°C unless otherwise specified.
Symbol
Parameter
Conditions
VCC (V)
TA=- 40ºC to +85ºC
Unit
Min.
Typ.
Max.
tINIT
Initalization Time
VCC to Output (5)
RL=50 Ω, CL=5 pF, VSW=1.2 V
2.5 to 4.5
100
µs
1.8
150
tEN
Enable Turn-On Time,
/OE to Output
RL=50 Ω, CL=5 pF, VSW=1.2 V
2.5 to 4.5
120
200
ns
1.8
250
500
tDIS
Disable Turn-Off Time,
/OE to Output
RL=50 Ω, CL=5 pF, VSW=1.2 V
2.5 to 4.5
25
50
ns
1.8
50
90
tON
Turn-On Time,
SEL to Output
RL=50 Ω, CL=5 pF, VSW=1.2 V
2.5 to 4.5
50
100
ns
1.8
75
125
tOFF
Turn-Off Time
SEL to Output
RL=50 Ω, CL=5 pF, VSW=1.2 V
2.5 to 4.5
50
200
ns
1.8
200
325
tBBM
Break-Before-Make Time
RL=50 Ω, CL=5 pF, VSW=1.2 V
10
50
ns
OIRR
Off Isolation for MIPI(5)
RL=50 Ω, f=750 MHz,
/OE=VCC VSW=-1 dBm
(200 mVPP)
1.65 to 4.5
-18
dB
XTALK
Crosstalk for MIPI(5)
RL=50 Ω, f=750 MHz,
VSW=-1 dBm (200 mVPP)
1.65 to 4.5
-25
dB
BW
-3db Bandwidth(5)
RL=50 Ω, CL=0 pF
3.0
1100
1600
MHz
SDD21
Differential Data Rate
Inter-operability Data Rate
3.0
1.5
Gbps
Note:
5. Guaranteed by characterization.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA644 • Rev. 1.17 7
FSA644 — 2:1 MIPI D-PHY (1.5Gbps) 4-Data-Lane Switch
High-Speed-Related AC Electrical Characteristics
Symbol
Parameter
Conditions
VCC (V)
TA=- 40ºC to +85ºC
Unit
Min.
Typ.
Max.
tSK(O)
Channel-to-Channel Single-
Ended Skew(6)
TDR-Based Method
(VSW=0.2 VPP, CL=CON)
3.3
6
20
ps
tSK(P)
Skew of Opposite Transitions of
the Same Output(6)
TDR-Based Method
(VSW=0.2 VPP, CL=CON)
3.3
6
20
ps
Note:
6. Guaranteed by characterization.
Capacitance
Symbol
Parameter
Conditions
TA=- 40ºC to +85ºC
Unit
Min.
Typ.
Max.
CIN
Control Pin Input Capacitance
VCC=0 V, f=1 MHz
2.1
pF
CON
Out On Capacitance
VCC=3.3 V, /OE=0 V, f=1 MHz
5.2
COFF
Out Off Capacitance
VCC and /OE=3.3 V, f=1 MHz
2.0
Ordering Information
Part
Number
Top
Mark
Package
D
E
X
Y
FSA644UCX
M7
36-Ball WLCSP, Non-JEDEC 2.36 mm x 2.36 mm, 0.4 mm
Pitch
2.36 mm
2.36 mm
0.18 mm
0.18 mm
FSA644BUCX
KM
36-Ball WLCSP, Non-JEDEC 2.415 mm x 2.415 mm,
0.4 mm Pitch
2.415 mm
2.415 mm
0.208 mm
0.208 mm
www.onsemi.com
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ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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