The MAX9223/MAX9224 serializer/deserializer chipsets reduce wiring by serializing 22 bits onto a single differential pair. 22 bits are serialized in each cycle of the parallel input clock resulting in a 110Mbps to 220Mbps net serial-data rate ideal for cell phone QVGA and QCIF displays. The MAX9223 serializes the 18-bit RGB, VSYNC, HSYNC, and two control signals from the baseband processor to reduce wiring through the hinge to the LCD controller. The 2-wire serial interface uses low-current differential signaling (LCDS) for low EMI, high common-mode noise immunity, and ground-shift tolerance. The MAX9223/MAX9224 automatically identify the word boundary in serial data in case of signal interruption. The MAX9224 power-down is controlled by the MAX9223. The MAX9223 and MAX9224 consume 3.5µA or less in power-down mode.
The MAX9223 serializer operates from a single +2.375V to +3.465V supply and accepts +1.71V to +3.465V inputs. The MAX9224 deserializer operates from a +2.375V to +3.465V core supply and has a separate output buffer supply (VDDO), allowing +1.71V to +3.465V output high levels.
The MAX9223/MAX9224 are specified over the -40°C to +85°C extended temperature range and are available in 28-pin TQFN (4mm x 4mm x 0.8mm) packages with an exposed paddle.
Key Features
Applications/Uses
Ideal for Serializing Cell Phone LCD or Imager Parallel Interface
MAX9223 Serializes 18-Bit RGB, VSYNC, HSYNC, and Two Control Signals
LCDS Rejects Common-Mode Noise
Automatic Location of Word Boundary After Signal Interruption
Power-Down Control Through the Serial Link
Power-Down Supply Current
0.5µA (max)—MAX9223
3.0µA (max)—MAX9224
+2.375V to +3.465V Core Supply Voltage
Parallel I/O Interfaces Directly to 1.8V to 3.3V Logic
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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