ADG790_15 Datasheet, PDF (1/20 Pages) Analog Devices – Low Voltage, CMOS Multimedia Switch

Low Voltage, CMOS Multimedia Switch
ADG790
FEATURES
Single-chip audio/video/data switching solution
Wide bandwidth section
Rail-to-rail signal switching capability
Compliant with full speed USB 2.0 signaling (3.6 V p-p)
Compliant with high speed USB 2.0 signaling (400 mV p-p)
Supports USB data rates up to 480 Mbps
550 MHz, −3 dB bandwidth
Low RON: 5.9 Ω typical
Excellent matching between channels
Low distortion section
Low RON: 3.9 Ω typical
230 MHz, −3 dB bandwidth (SPDT)
160 MHz, −3 dB bandwidth (4:1 multiplexers)
Single-supply operation: 1.65 V to 3.6 V
Typical power consumption: <0.1 μW
Pb-free packaging: 30-ball WLCSP (3 mm × 2.5 mm)
APPLICATIONS
Cellular phones
PMPs
MP3 players
Audio/video/data/USB switching
FUNCTIONAL BLOCK DIAGRAM
ADG790
WIDE
BANDWIDTH
SECTION
S1A
S1B
D1
S2A
S2B
D2
S3A
S3B
D3
LOW
DISTORTION
SECTION
S5A
S5B
S5C
S5D
D5
S6A
S6B
S6C
S6D
D6
S4A
S4B
D4
DECODER
V_DD IN1 IN2 IN3 S/D GND
Figure 1.
GENERAL DESCRIPTION
The ADG790 is a single-chip, CMOS switching solution that
comprises four SPDT switches and two 4:1 multiplexers. The
internal architecture of the device provides two switching
sections, a wide bandwidth section and a low distortion section.
The wide bandwidth section contains three SPDT switches that
exhibit low on resistance with excellent flatness and channel
matching. This, combined with wide bandwidth, makes the
three-SPDT-switch configuration ideal for high frequency
signals, such as full speed (12 Mbps) and high speed (480 Mbps)
USB signals and high resolution video signals.
The low distortion section contains a single SPDT switch and
two 4:1 multiplexers that exhibit very low on resistance and
excellent flatness, making these switches ideal for a wide range
of applications, including low distortion audio applications and
low resolution video (CVBS and S-Video) applications.
When on, all switches conduct equally well in both directions.
When off, all switches block signals up to the supply rails. A
4-wire parallel interface controls the operation of the device
and allows the user to control switches from both sections
simultaneously. This simplifies the design and provides a cost-
effective, single-chip switching solution for portable devices
where multiple signals share a single port connector. The
shutdown (S/D) pin allows all four SPDT switches to be
disabled and forces the 4:1 multiplexers into the S5B and S6B
positions, respectively.
The ADG790 is packaged in a compact, 30-ball WLCSP (6 × 5
ball array) with a total area of 7.5 mm² (3 mm × 2.5 mm). This
tiny package size and its low power consumption make the
ADG790 an ideal solution for portable devices.
Rev. A
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