Dell ST2220 Video Supported Modes, Preset Display Modes, Electrical, Physical Characteristics

Model	ST2220L/ST2220M
Horizontal scan range	30 kHz to 83 kHz (automatic)
Vertical scan range	56 Hz to 76 Hz (automatic)
Maximum preset resolution	1920 x 1080 at 60 Hz

Video Supported Modes

Model

ST2220L/ST2220M

Video display capabilities (HDMI playback)

480i/480p/576i/576p/720p/1080i/1080p

Preset Display Modes

ST2220L/ST2220M

Display Mode	Horizontal Frequency	Vertical Frequency	Pixel Clock	Sync Polarity (Horizontal/Vertical)
	(kHz)	(Hz)	(MHz)
VGA, 720 x 400	31.469	70.087	28.3	-/+
VGA, 640 x 480	31.469	59.940	25.2	-/-
VGA, 640 x 480	37.500	75.000	31.5	-/-
VESA, 800 x 600	37.879	60.317	40.0	+/+
VESA, 800 x 600	46.875	75.000	49.5	+/+
VESA, 1024 x 768	48.363	60.004	65.0	-/-
VESA, 1024 x 768	60.023	75.029	78.8	+/+
VESA. 1152 x 864	67.500	75.000	108.0	+/+
VESA, 1280 x 1024	64.000	60.000	108.0	+/+
VESA, 1280 x 1024	79.976	75.025	135.0	+/+
VESA, 1920 x 1080	67.500	60.000	148.5	+/+

Electrical

Model	ST2220L/ST2220M
	Analog RGB, 0.7 Volts +/- 5%, positive polarity at 75 ohm input impedance
	Digital DVI-D TMDS, 600mV for each differential line, positive polarity at 50 ohm input
Video input signals	impedance
	HDMI, 600mV for each differential line, 100 ohm input impedance per differential pair
	(for ST2220L)
Synchronization input signals	Separate horizontal and vertical synchronizations, polarity-free TTL level, SOG
	(Composite SYNC on green)
AC input voltage/frequency/current	100 to 240 VAC/50 or 60 Hz + 3 Hz/2.0A (Max.)
Inrush iso surge current	120 V: 30 A (Max.)
	240 V: 60 A (Max.)

Physical Characteristics

Model	ST2220L/ST2220M
	•	D-sub: Blue connector
Connector type	•	DVI-D: White connector
	•	HDMI (for selective models)
	•	D-sub: Detachable, Analog, 15 pin, shipped attached to the monitor
Signal cable type	•	DVI-D
	•	HDMI (for selective models)