SLLSE12A November 2009 – July 2014 SN75DP119
PRODUCTION DATA.
The SN75DP119 is a 1-lane or 2-lane embedded DisplayPort (eDP) repeater that regenerates the DP high speed digital link. The device compensates for pcb related frequency loss and signal reflections. This is especially helpful in designs with long pcb traces or when there is a FET switch in the signal path.
The SN75DP119 allows configuring output pre-emphasis and output swing through the external control inputs. The following options are valid:
PRE_CTL = LOW | PRE_CTL = VCC/2 (INPUT LEFT FLOATING) |
PRE_CTL = HIGH | |
---|---|---|---|
VOD_CTL = LOW | VOD = 300 mVPP; 2.5 dB pre-emphasis (lowest power consumption) |
VOD = 300 mVPP; 6 dB pre-emphasis |
VOD = 300 mVPP; 8.5 dB pre-emphasis |
VOD_CTL = VCC/2
(input left floating) |
VOD = 400 mVPP; no pre-emphasis |
VOD = 400 mVPP; 3.5 dB pre-emphasis |
VOD = 400 mVPP; 5.5 dB pre-emphasis |
VOD_CTL = HIGH | VOD = 600 mVPP; no pre-emphasis |
VOD = 600 mVPP; 2.5 dB pre-emphasis |
VOD = 800 mVPP, no pre-emphasis |
The SN75DP119 switches between the power saving and the active modes in the following way:
MODE | CHARACTERISTICS | CONDITIONS |
---|---|---|
ShutDown Mode | Least amount of power consumption (all circuitry turned off); outputs are high-impedance | EN is low |
2- channel Active Mode | Data transfer (normal operation); The device outputs OUTx represents the data received on the input INx. The input EQ and output pre-emphasis and output swing voltage level are controlled through the external control pins. | EN is high (both main link outputs enabled) |
1-channel Active Mode | Data transfer (normal operation); The device output OUT0 represents the data received on the input IN0. The 2nd channel (IN1 and OUT1) are disabled. The input EQ and output pre-emphasis and output swing voltage level are controlled through the external control pins. | EN is VCC/2 (only main link channel 0 enabled) |