Data Sheet

ManualsBrandsSuperDroid Robots ManualsBreakout Boards and AccessoriesSingle LS7366R Quadrature Encoder Buffer

DC Electrical Characteristics. (TA = -25˚C to +85°C)

Parameter Symbol Min. TYP Max. Unit Remarks

Supply Voltage VDD 3.0 - 5.5 V -

Supply Current IDD 300 400 450 µA VDD = 3.0V

IDD 700 800 950 µA VDD = 5.0V

Input Voltages

fCKi, Logic high VCH 2.3 - - V VDD = 3.0V

VCH 3.7 - - V VDD = 5.0V

fCKi, Logic Low VCL - - 0.7 V VDD = 3.0V

VCL - - 1.3 V VDD = 5.0

All other inputs, Logic High VAH 2.1 - V VDD = 3.0V

VAH 3.5 - V VDD = 5.0V

All other inputs, Logic Low VAL - - 0.5 V VDD = 3.0V

VAL - - 1.0 V VDD = 5.0V

Input Currents:

CNT_EN Low IIEL - 3.0 5.0 µA VAL = 0.7V, VDD = 3.0V

IIEL - 10.0 15.0 µA VAL = 1.2V, VDD = 5.0V

CNT_EN High IIEH - 1.0 3.0 µA VAH = 1.9V, VDD = 3.0V

IIEH - 6.0 9.0 µA VAH = 3.2V, VDD = 5.0V

All other inputs, High or Low - - 0 0 µA -

Output Currents:

LFLAG, DFLAG Sink IOFL -1.3 -2.0 - mA VOUT = 0.5V, VDD = 3.0V

IOFL -3.2 -4.0 - mA VOUT = 0.5V, VDD = 5.0V

LFLAG Source - 0 0 - mA Open Drain Output

DFLAG Source IOFH 1.0 1.8 - mA VOUT = 2.5V, VDD = 3.0V

IOFH 2.8 3.6 - mA VOUT = 4.5V, VDD = 5.0V

fCKO Sink IOCL -1.3 -2.0 - mA VOUT = 0.5V, VDD = 3.0V

IOCL -3.2 -4.0 - mA VOUT = 0.5V, VDD = 5.0V

fCKO Source IOCH 1.3 2.0 - mA VOUT = 2.5V, VDD = 3.0V

IOCH 3.2 4.0 - mA VOUT = 4.5V, VDD = 5.0V

TXD/MISO:

Sink IOML -1.5 -2.4 - mA VOUT = 0.5V, VDD = 3.0V

IOML -3.8 -4.8 - mA VOUT = 0.5V, VDD = 5.0V

Source IOMH 1.5 2.4 - mA VOUT = 2.5V, VDD = 3.0V

IOMH 3.8 4.8 - mA VOUT = 4.5V, VDD = 5.0V

7366R-120407-5

Transient Characteristics. (TA = -25˚C to +85˚C, VDD = 5V ± 10%)

Parameter Symbol Min. Value Max.Value Unit Remarks

(See Fig. 2)

SCK High Pulse Width tCH 100 - ns -

SCK Low Pulse Width tCL 100 - ns -

SS/ Set Up Time tCSL 100 - ns -

SS/ Hold Time tCSH 100 - ns -

Quadrature Mode

(See Fig. 5, 7 & 8 )

fCKI High Pulse Width t1 12 - ns -

fCKI Pulse Width t2 12 - ns -

fCKI Frequency fFCK - 40 MHz -

Effective Filter Clock fF Period t3 25 - ns t3 = t1+t2, MDR0 <7> = 0

t3 50 - ns t3 = 2(t1+t2), MDR0 <7> = 1

Effective Filter Clock fF frequency fF - 40 MHz fF = 1/ t3

Quadrature Separation t4 26 - ns t4 > t3

Quadrature Clock Pulse Width t5 52 - ns t5 ≥ 2t3

Quadrature Clock frequency fQA, fQB - 9.6 MHz fQA = fQB < 1/4t3

Quadrature Clock to Count Delay tQ1 4t3 5t3 - -

x1 / x2 / x4 Count Clock Pulse Width tQ2 12 - ns tQ2 = (t3)/2

Index Input Pulse Width tid 32 - ns tid > t4

Index Set Up Time tis - 5 ns -

Index Hold Time tih - 5 ns -

Quadrature clock to tfl 4.5t3 5.5t3 ns -

DFLAG/ or LFLAG/ delay

DFLAG/ output width tfw 26 - ns tfw = t4