Features
- Converts low-swing AC coupled differential input to HDMI 1.3 compliant open-drain current steering Rx terminated differential output.
- HDMI T.M.D.S. level shifting operation up to 1.65Gb/s per lane (165MHz pixel clock).
- Enable feature to turn off T.M.D.S. inputs and outputs and to enter low-power state.
- Transparent operation: no re-timing or configuration required.
- Inter-Pair added skew < 250ps
- Intra-Pair added skew < 10ps
- Switching power only from single 3.3V supply.
- Integrated 50-ohm termination resistors for AC coupled differential Inputs.
- Pass-gate voltage limiters allow 3.3V termination on GMCH pins, 5V DDC termination on HDMI connector pins.
- Integrated ESD protection to 4kV Human Body Model, 1kV Charged Device Model on OUT_D, HPD_SINK, SCL_SINK and SDA_SINK I/O pins.
- Level shifter for HDMI 1.3 HPD.
- Integrated pull-down resistor on HPD_SINK input guarantees “input low” when no display is plugged in.
- Offered in a 48-Pin QFN Package.
Description
CH7318 is a high speed HDMI level shifter that converts low-swing AC coupled differential input to HDMI 1.3 compliant open-drain current steering Rx terminated differential output.
The CH7318 features integrated parallel termination resistors (50-ohm), which eliminate the requirement for external termination resistors on the T.M.D.S. differential output pins. In addition, the CH7318 has incorporated the ESD protection for DDC channels as well as T.M.D.S.
signal lines. The OE* pin controls the high impedance output on the OUT_Dx pins.
The device operates from a single +3.3V supply, and is characterized the
operation temperature range from -10 °C to 50 °C (ambient temperature).
ORDERING INFORMATION |
| Part Number |
Package Type |
RoHS Compliant |
# of Pins |
Voltage Supply |
| CH7318A-BF |
Lead Free - 48-Pin QFN |
Yes |
48 |
3.3V |
| CH7318A-BF-TR |
Lead Free - 48-Pin QFN
in Tape and Reel |
Yes |
48 |
3.3V |
| Sales Inquiry :
Sales@chrontel.comm |
Product Information:
Info@chrontel.com
|
