ST ST3DV520 User Manual
Features
ST3DV520
High bandwidth analog switch with 16-to-8 bit MUX/DEMUX
■ Low R
■ V
CC
■ 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
: 5.5 Ω typical
ON
operating range: 3.0 to 3.6 V
QFN56
Table 1. Device summary
Order code Package Packing
ST3DV520QTR QFN56 Tape and reel
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 RON 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)
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Table 2. Pin description
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Pin number Symbol Name and function
2, 3, 7, 8, 11, 12, 14, 15 A, B, C, D, E, F, G, H 8-bit bus
31, 32, 36, 37, 42, 43, 47, 48 A0, B0, C0, D0, E0, F0, G0, H0 8-bit multiplexed to bus 0
29, 30, 35, 40, 41, 45, 46 A1, B1, C1, D1, E1, F1, G1, H1 8-bit multiplexed to bus 1
17 SEL Bus switch selection
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5, 19, 20, 22, 23, 25, 26, 51,
52, 54
4, 10, 18, 27, 38, 50, 56 V
1, 6, 9, 13, 16, 21, 24, 28,
33, 39, 44, 49, 53, 55
NC Not connected
CC
GND Ground
2/10 Doc ID 15092 Rev 3
Supply voltage
ST3DV520 Pin description
Figure 2. Input equivalent circuit
Table 3. Switch function table
SE Function
L 8-bit bus to 8-bit multiplexed bus 0
H 8-bit bus to 8-bit multiplexed bus 1
Doc ID 15092 Rev 3 3/10
AM00755V1
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