IDTHS231P16 Datasheet, PDF (1/10 Pages) Integrated Device Technology – HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING

HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
PRELIMINARY DATASHEET
IDTHS231P16
Description
The IDTHS231P16 is a high-performance hybrid switch
device, combined with hybrid low distortion audio, UART
and an USB 2.0 high speed data (480 Mbps) signal
switches. When operated with a 1.8 V single supply, this
high performance switch allows audio signal swings
below-ground, allowing the use of a common USB and
audio headphone connector in personal media players and
other portable battery powered devices.
The IDTHS231P16 logic SELx control pins are 1.8 V
compatible which allows for control via a standard
µcontroller. With a VDD voltage in the range of 1.7 V to 1.95
V, the device can pass USB 3 V signal sources in the
portable device, with up to 5.5 V tolerant on USB and COM
signal pins. The part has an audio enable control pin to
open all the switches and put the part in a low power state.
The IDTHS231P16 is available in a small 16-pin QFN
package.
Features
• +1.7 V to +1.95 V single-supply operation
• Low distortion negative signal handling capability with
Ron typically 3Ω for Audio signal
• Control pin to open all switches and enter low power state
• Cross-talk audio channels (20 Hz to 20 kHz): -110dB
• -3dB bandwidth USB switches: 700 MHz
• Available in 16-pin QFN package – RoHS compliant
• Compliant with USB 2.0 short circuit requirements
without additional external components
Applications
• MP3 and other personal media players
• PDA’s
• Audio/USB Switching
• Cellular and mobile phones
Block Diagram
SEL0
SEL1
D+
R
U+
D-
L
U-
Control
Circuit
COM+
COM-
VDD
GND
IDT™ HYBRID SWITCH WITH NEGATIVE SIGNAL HANDLING
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IDTHS231P16 REV J 032708