Datasheet

DESCRIPTION/ORDERING INFORMATION
V
CC
IN2
GND
NC1
NO1
COM1
NC2
NO2
COM2
NC3
NO3
COM3
NC4
NO4
COM4
NC5
NO5
COM5
NC6
NO6
COM6
IN1
EN
Logic
TS3A27518E
SCDS260B – MARCH 2009 – REVISED MAY 2009 ........................................................................................................................................................... www.ti.com
The TS3A27518E is a 6-bit 1-of-2 Mux/Demux designed to operate from 1.65 V to 3.6 V. This device can handle
both digital and analog signals, and signals up to V
+
can be transmitted in either direction. The TS3A27518E has
two control pins, each controlling three 1-of-2 muxes at the same time, and an enable pin that is used to put all
outputs in high-impedance mode. The control pins are compatible with 1.8V logic thresholds and are backward
compatible with 2.5 V and 3.3 V logic thresholds as well.
The TS3A27518E allows any SD, SDIO, and multimedia card host controllers to be expanded out to multiple
cards or peripherals since the SDIO interface consists of 6-bits: CMD, CLK, and Data[0:3] signals. The
TS3A27518E has two control pins that give additional flexibility to the user. For example, the ability to mux two
different audio-video signals in equipment such as an LCD television,an LCD monitor, or a notebook docking
station.
ORDERING INFORMATION
T
A
PACKAGE
(1) (2)
ORDERABLE PART NUMBER TOP-SIDE MARKING
BGA – ZQS Tape and reel TS3A27518EZQSR YL518E
– 40 ° C to 85 ° C QFN – RTW Tape and reel TS3A27518ERTWR YL518E
TSSOP – PW Tape and reel TS3A27518EPWR YL518E
(1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging .
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com .
LOGIC DIAGRAM
SUMMARY OF CHARACTERISTICS
V
+
= 3.3 V, T
A
= 25 ° C
1-of-2
Configuration
Multiplexer/Demultiplexer
Number of channels 6
ON-state resistance (r
on
) 6.2 Ω (max)
ON-state resistance match ( Δ r
on
) 0.7 Ω (max)
ON-state resistance flatness
2.1 Ω (max)
(r
ON(flat)
)
Turn-on/turn-off time (t
ON
/t
OFF
) 59 ns/ 60.6 ns (max)
Break-before-make time (t
BBM
) 22.7 ns (max)
Charge injection (Q
C
) 0.81 pC
Bandwidth (BW) 240 MHz
OFF isolation (O
ISO
) – 62 dB at 10 MHz
Crosstalk (X
TALK
) – 62 dB at 10 MHz
Total harmonic distortion (THD) 0.05%
Power-supply current (I
+
) < 0.3 µ A (max)
24-pin QFN (RTW),
Package options 24-BGA (ZQS)
24-TSSOP (PW)
FUNCTION TABLE
NC1/2/3 TO COM1/2/3, NC4/5/6 TO COM4/5/6, NO1/2/3 TO COM1/2/3, NO4/5/6 TO COM4/5/6,
EN IN1 IN2
COM1/2/3 TO NC1/2/3 COM4/5/6 TO NC4/5/6 COM1/2/3 TO NO1/2/3 COM4/5/6 TO NO4/5/6
H X X OFF OFF OFF OFF
L L L ON ON OFF OFF
L H L OFF ON ON OFF
L L H ON OFF OFF ON
L H H OFF OFF ON ON
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Product Folder Link(s): TS3A27518E