G3212 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – Low Capacitance VGA 2:2 Dual-Graphics Cross over switch

Global Mixed-mode Technology
G3212
Low Capacitance VGA 2:2 Dual-Graphics Cross-
over Switch
Features
„ Low ON-Resistance 5Ω (Typical), RGB Signal
„ Low supply Current <5µA (Max)
„ High Bandwidth, 700MHz (Typical), RGB
„ DDC Level Shifting, Isolation with Internal Pullup
Termination, and Protection
„ Horizontal and Vertical Sync Level Shifting and
Buffering
„ Inputs Compatible with V_L, Outputs TTL Com-
patible
„ Source/Sink ±10mA on Each SH_, SV_ Output
„ Independent Selectable Logic Inputs For
Switching
„ High ESD Protection on Outputs:
±15kV HBM ESD
±6kV IEC 61000-4-2 Contact Discharge
„ TQFN 5x5 40 pins Package with Exposed Pad
Applications
„ Notebook Computer-Switchable Graphics
Ordering Information
ORDER MARKIN
NUMBER
G
G3212RG1U 3212
Note: RG: TQFN5X5-40
1: Bonding Code
U: Tape & Reel
TEMP.
RANGE
-40°C to 85°C
PACKAGE
(Green)
TQFN5X5-40
General Description
The G3212 integrates high-bandwidth analog
switches, level-shifting buffers and level-translating
FET switches. The device implements a complete
2:2 dual-graphics crossover solution for VGA signal
switching. The G3212 provides 12 very
high-frequency 700MHz SPST switches for RGB
signals, 4 low- frequency clamping switches for the
Display Data Channel(DDC) signals, 2 pairs of
level-shifting buffers for the HSYNC and VSYNC
signals, and also integrated extended ESD protection.
The G3212 is used to select one of two sources to
either of two destinations within a laptop computer.
Horizontal and vertical synchronization (SH_/SV_)
inputs feature level-shifting buffers to support low-
voltage controllers and standard 5V TTL-level moni-
tors. DDC, consisting of SDA_ and SCL_, are FET
switches that protect the low-voltage VGA source
from potential damage from high-voltage presence
on the monitor while reducing capacitive load.
All 14 output terminals of the G3212feature high-ESD
protection to ±15kV Human Body Model (HBM) and
±6kV IEC 61000-4-2 Contact. All other pins are pro-
tected to ±2kV HBM.
The G3212 is available in the TQFN5X5-40 package
with exposed pad.
Pin Configuration
S00 1
EN 2
SHA 3
SVA 4
SCLA 5
SDAA 6
REDA 7
GRNA 8
BLUA 9
GND 10
Thermal
Pad
30 GND
29 VCC
28 SH2
27 SV2
26 SCL2
25 SDA2
24 RED2
23 GRN2
22 BLU2
21 VCC
Ver: 0.2
Mar 07, 2012
G3212 TQFN5X5-40
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: [phone]
http://www.gmt.com.tw
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