JAJSKL8E june 2006 – october 2020 SN65LVDS302
PRODUCTION DATA
The SN65LVDS302 switches between the power saving and active modes in the following way:
MODE | CHARACTERISTICS | CONDITIONS |
---|---|---|
Shutdown Mode | Least amount of power consumption (most circuitry turned off); All outputs held static: R[0:7] = G[0:7] = B[0:7] = VS = HS = high DE = PCLK = low; | RXEN is set low for longer than 10 μs(1)(2) |
Standby Mode | Low power consumption (Standby monitor circuit active; PLL is shutdown to conserve power); All outputs held static: R[0:7] = G[0:7] = B[0:7] = VS = HS = high DE = PCLK = low; | RXEN is high for longer than 10 μs, and both CLK input common-mode VICM(CLK) above 0.9 × VDDLVDS, or CLK input floating(2) |
Acquire Mode | PLL pursues lock; All outputs held static: R[0:7] = G[0:7] = B[0:7] = VS = HS = high DE = PCLK = low; | RXEN is high; CLK input monitor detected clock input common mode and woke up receiver out of Standby mode |
Receive Mode | Data transfer (normal operation); receiver deserializes data and provides data on parallel output | RXEN is high and PLL is locked to incoming clock |
MODE TRANSITION | USE CASE | TRANSITION SPECIFICS | |
---|---|---|---|
Shutdown → Standby | Drive RXEN high to enable receiver | 1. | RXEN high > 10 μs |
2. | Receiver enters standby mode | ||
a. R[0:7] = G[0:7] = B[0:7] = VS = HS remain high and DE = PCLK low | |||
b. Receiver activates clock input monitor | |||
Standby → Acquire | Transmitter activity detected | 1. | CLK input monitor detects clock input activity |
2. | Outputs remain static | ||
3. | PLL circuit is enabled | ||
Acquire → Receive | Link is ready to receive data | 1. | PLL is active and approaches lock |
2. | PLL achieves lock within twakeup | ||
3. | D1, D2, or D3 become active depending on LS0 and LS1 selection | ||
4. | First Data word was recovered | ||
5. | Parallel output bus turns on switching from static output pattern to output first valid data word | ||
Receive → Standby | Transmitter requested to enter Standby mode by input common mode voltage VICM > 0.9 VDDLVDS as when transmitter output clock stops or enters high-impedance state. | 1. | Receiver disables outputs within tsleep |
2. | RX Input monitor detects VICM > 0.9 VDDLVDS within tsleep | ||
3. | R[0:7] = G[0:7] = B[0:7] = VS = HS transition to high and DE = PCLK to low on next falling PLL clock edge | ||
4. | PLL shuts down. Clock activity input monitor remains active | ||
Receive and Standby → Shutdown | Turn off Receiver | 1. | RXEN pulled low for > tpwrdn |
2. | R[0:7] = G[0:7] = B[0:7] = VS = HS remain static high or transition to static high and DE = PCLK remain or transition to static low | ||
3. | Most IC circuitry is shut down for least power consumption |