I2C-Compatible, Wide Bandwidth,
Triple 2 × 2 Crosspoint Switch
ADG799A/ADG799G
Rev. 0
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FEATURES
Bandwidth: 230 MHz
Low insertion loss and on resistance: 2.6 Ω typical
On resistance flatness: 0.3 Ω typical
Single 3 V/5 V supply operation
3.3 V analog signal range (5 V supply, 75 Ω load)
Low quiescent supply current: 1 nA typical
Fast switching times: tON =184 ns, tOFF = 180 ns
I2C-compatible interface
Compact 24-lead LFCSP
Two I2C-controllable logic outputs (ADG799G only)
ESD protection
4 kV human body model
200 V machine model
1 kV field-induced charged device model
APPLICATIONS
RGB/YPbPr video switches
HDTV
Projection TV
DVD-R/RW
AV receivers
FUNCTIONAL BLOCK DIAGRAMS
GPO2
SCL
SDA
A2
A1
A0
VDD
GND
S3B
D3B
S3A
D3A
2 × 2
CROSSPOINT
S1B
D1B
S1A
D1A
2 × 2
CROSSPOINT
S2B
D2B
S2A
D2A
2 × 2
CROSSPOINT
ADG799G
06038-
001
GPO1
I2C SERIAL
INTERFACE
SCL
SDA
A2
A1
A0
VDD
GND
I2C SERIAL
INTERFACE
S3B
D3B
S3A
D3A
2 × 2
CROSSPOINT
S1B
D1B
S1A
D1A
2 × 2
CROSSPOINT
S2B
D2B
S2A
D2A
2 × 2
CROSSPOINT
ADG799A
Figure 1. ADG799A and ADG799G
GENERAL DESCRIPTION
The ADG799A/ADG799G are monolithic CMOS devices
comprising three 2 × 2 crosspoint switches controllable via a
standard I2C serial interface. The CMOS process provides
ultralow power dissipation, yet offers high switching speed and
low on resistance.
The on resistance profile is very flat over the full analog input
range and wide bandwidth ensures excellent linearity and low
distortion. These features, combined with a wide input signal
range, make the ADG799A/ADG799G the ideal switching
solution for a wide range of TV applications including RGB and
YPbPr video switches for picture-in picture applications.
The switches conduct equally well in both directions when on.
In the off condition, signal levels up to the supplies are blocked.
The ADG799A/ADG799G switches exhibit break-before-make
switching action. The ADG799G has two general-purpose logic
output pins controlled by the I2C interface that can also be used
to control other non-I2C-compatible devices such as video filters.
The integrated I2C interface provides a large degree of flexibility
in the system design. It has three user-adjustable I2C address
pins that allow up to eight devices on the same bus. This allows
the user to expand the capability of the device by increasing the
size of the switching array.
The ADG799A/ADG799G operate from single 3 V or 5 V supply
voltages and are available in a compact, 4 mm × 4 mm body,
24-lead, Pb-free LFCSP.
PRODUCT HIGHLIGHTS
1.
Wide bandwidth: 230 MHz.
2.
Ultralow power dissipation.
3.
Extended input signal range.
4.
Integrated I2C serial interface.
5.
Compact 4 mm × 4 mm, 24-lead, Pb-free LFCSP.
6.
ESD protection tested as per ESD Association standards:
4 kV HBM (ANSI/ESD STM5.1-2001)
200 V MM (ANSI/ESD STM5.2-1999)
1 kV FICDM (ANSI/ESD STM5.3.1-1999)