MicroE Mercury II 5000 - Manual (Page 29)

Appendix
IM-Mercury_II_5000_Series Rev. 1 Page 28 ©2014 MicroE Systems
Mercury II 5000 Series Encoders
Installation Manual and Reference Guide
Output Signal Specifications

SDATA_OUT

SCLOCK_OUT
Parameter Minimum Typical Maximum
Differential Output Voltage 500 mv 2v
Common Mode Output Voltage 500 mv 2v
Termination
Input Signal Specifications

SLOCK_IN

nCS
Parameter Minimum Typical Maximum
Differential Output Voltage
Common Mode Output Voltage 1.1v 1.6v
Absolute Maximum Single-Ended Voltage -0.3V 2v
Recommended Common Mode Voltage 1.2v 2v
Recommended Differential Input Voltage 250 mv 2v
Impedance
Signal Definitions
Signal Definition
Note

Clock frequency requirements: 30MHz to 50MHz

Maximum position sample frequency (falling edge to falling edge): 220 clock cycles

Minimum Pulse Width (high or low): 2 clock cycles
Power-Up Sequence
Power is supplied from the host to the sensor. After power is supplied, the following sequence is
performed:

The sensor waits for the serial clock to be provided by the host on the signal SCLOCK_IN
for 100ms.

If a clock is not provided, the sensor switches to operate in the final mode (quadrature or
serial).

Upon detecting a serial clock on SCLOCK_IN, the sensor returns the clock to the host on
SCLOCK_OUT.

Within the first 500ms after the serial clock is provided by the host, SCLOCK_OUT may
be unstable.