ST3DV520
High bandwidth analog switch with 16-to-8 bit MUX/DEMUX
Features
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Low R
ON
: 5.5
Ω
typical
V
CC
operating range: 3.0 to 3.6 V
Low current consumption: 20 µA
ESD HBM model: > 2 kV
Channel on capacitance: 7.5 pF typical
Switching time speed: 9 ns
Near to zero propagation delay: 250 ps
Very low cross talk: -40 db at 250 MHz
Bit-to-bit skew: 200 ps
> 450 MHz -3 db typical bandwidth
Package: QFN56
Lead-free
Table 1.
Device summary
Package
QFN56
Packing
Tape and reel
QFN56
Order code
ST3DV520QTR
November 2010
Doc ID 15092 Rev 3
1/10
www.st.com
10
Description
ST3DV520
1
Description
The ST3DV520 is a 16- to 8-bit bidirectional multiplexer/demultiplexer low R
ON
and high
bandwidth switch suitable for analog video applications.
The ST3DV520 supports high definition (HD) analog video switching standards and is also
suitable for general purpose switching that requires high signal integrity.
The device is designed for very low crosstalk, low bit-to-bit skew and low I/O capacitance.
The signal from each input is multiplexed into one of two selected outputs while the
unselected switch goes to HI-Z status.
2
Pin description
Figure 1.
Pin connection (top through view)
Table 2.
Pin description
Pin number
Symbol
A, B, C, D, E, F, G, H
A0, B0, C0, D0, E0, F0, G0, H0
A1, B1, C1, D1, E1, F1, G1, H1
SEL
NC
V
CC
GND
Name and function
8-bit bus
8-bit multiplexed to bus 0
8-bit multiplexed to bus 1
Bus switch selection
Not connected
Supply voltage
Ground
2, 3, 7, 8, 11, 12, 14, 15
31, 32, 36, 37, 42, 43, 47, 48
29, 30, 35, 40, 41, 45, 46
17
5, 19, 20, 22, 23, 25, 26, 51,
52, 54
4, 10, 18, 27, 38, 50, 56
1, 6, 9, 13, 16, 21, 24, 28,
33, 39, 44, 49, 53, 55
2/10
Doc ID 15092 Rev 3
Maximum ratings
ST3DV520
3
Maximum ratings
Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics
™
SURE
program and other relevant quality documents.
3.1
Absolute maximum ratings
Table 4.
Absolute maximum ratings
Parameter
Supply voltage to
ground
DC input voltage
DC control input voltage
DC output current
(1)
Power dissipation
Storage temperature
Lead temperature
(10 sec)
Value
-0.5 to 4
-0.5 to 4
-0.5 to 4
120
0.5
-65 to 150
300
Unit
V
V
V
mA
W
°C
°C
Symbol
V
CC
V
I
V
IC
I
O
P
D
T
stg
T
L
1. If V
IO
x I
O
does not exceed the maximum limit of P
D
.
4/10
Doc ID 15092 Rev 3
ST3DV520
Table 5.
Symbol
V
IH
V
IL
V
IK
I
IH
I
IL
I
OFF
Maximum ratings
DC electrical characteristics (T
A
= -40 to 85 °C, V
CC
= 3.3 V ± 10%)
Parameter
Voltage input high
Voltage input low
Clamp diode voltage
Input high current
Input low current
Power down leakage current
Test conditions
High level guaranteed
Low level guaranteed
V
CC
= 3.6 V, I
IN
= -18 mA
V
CC
= 3.6 V, V
IN
= V
CC
V
CC
= 3.6 V, V
IN
= GND
V
CC
= 0 V, A to H
V = 0 V,
A0 to H0 and A1 to H1
≤
3.6 V
V
CC
= 3.0 V, V
IN
= 1.5 to V
CC
I
IN
= -40mA
V
CC
= 3.0 V, V
IN
at 1.5 and
V
CC
I
IN
= -40mA
5.5
Min
2
-0.5
-0.8
0.8
-1.2
±
5
±
5
±
5
Typ
Max Unit
V
V
V
μA
μA
μA
R
ON
Switch ON resistance
(1)
7.5
Ω
Ω
R
FLAT
ON resistance flatness
(1)(2)
0.8
ΔR
ON
ON resistance match between
V
CC
= 3.0 V, V
IN
= 1.5 to V
CC
channel
I = -40mA
ΔR
ON
= R
ONMAX
-R
ONMIN (1)(3) IN
0.5
1
Ω
1. Measured by voltage drop between channels at indicated current trough the switch. ON resistance is
determined by the lower of the voltage.
2. Flatness is defined as the difference between the R
ONMAX
and R
ONMIN
of ON resistance over the specified
range.
3.
ΔR
ON
measured at same V
CC
, temperature and voltage level.
Table 6.
Symbol
C
IN
C
OFF
C
ON
Capacitance specifications (T
A
= 25 °C, f = 1 MHz)
Parameter
Input capacitance
(1)
Port x0 to port x1, switch off
Capacitance switch on
(x to x0 or x to x1)
Test conditions
V
IN
= 0 V
V
IN
= 0 V
V
IN
= 0 V
Min
Typ
2
4
7.5
Max
3
6
11
Unit
pF
pF
pF
1. x = A to H, x0 = A0 to H0, x1 = A1 to H1.
Table 7.
Symbol
I
CC
Power supply characteristics (T
A
= -40 to 85 °C)
Parameter
Quiescent power supply
Test conditions
V
CC
= 3.6 V
V
IN
= V
CC
or GND
Min
Typ
150
Max Unit
500
µA
Table 8.
Symbol
X
talk
O
IRR
BW
Dynamic electrical characteristics (T
A
= -40 to 85 °C, V
CC
= 3.3 V ± 10%)
Parameter
Crosstalk
Off isolation
-3 dB bandwidth
Test conditions
R
L
= 100
Ω,
f = 250 MHz
R
L
= 100
Ω,
f = 250 MHz
R
L
= 100
Ω
Min
Typ
-40
-36
450
Max Unit
dB
dB
MHz
Doc ID 15092 Rev 3
5/10
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