FS310 datasheet(6/40 Pages) TTELEC

6 / 40 page

General Note

TT Electronics reserves the right to make changes in product specification without

notice or liability. All information is subject to TT Electronics’ own data and is

considered accurate at time of going to print.

TT Electronics | OPTEK Technology

2900 E. Plano Parkway, St 200, Plano, TX 75074, USA | Ph: +1 972 323 2200

www.ttelectronics.com | sensors@ttelectronics.com

Rev C, 4/27/2023

Page 6

FlexSense® I-Series Programmable

Incremental Encoder

FS210/FS310 Datasheet

Characteristic

Symbol Conditions

Min

Typ

Max

Unit Notes

QUADRATURE-TRACK ANALOG CHARACTERISTICS

Output high short-circuit current

limit

IOHL:QA

QCFG<4> = 0; Pin shorted to VSS

-1.2

Output low short-circuit current

limit

IOLL:QA

QCFG<4> = 0; Pin shorted to VDD

2.5

Equivalent transimpedance gain

ZQ:LN

TQM2=0x00; ZCFG<6> = 1 (low noise)

2.9

MΩ

5, 8

Input Frequency

TQM2=0x00; ZCFG<6> = 1 (low noise)

400

kHz

5, 8

Output common-mode voltage

VO:Q

QCFG=0x00

1.25

5, 8

Output noise voltage

|VN:LN|

ZCFG<6> = 1; integrated over f ≤ 300kHz

5, 8

|VN:HS|

ZCFG<6> = 1; integrated over f ≤ 3MHz

Total harmonic distortion

THDQ

f≤100KHz

-40

5, 8

INDEX TRACK CHARACTERISTICS

Output high current

IOH:Z

VOH = VDD – 0.4V

-15

Output low current

IOL:Z

VOL = 0.4V

Output high short-circuit current

limit

IOHL:Z

Pin shorted to VSS

-50

Output low short-circuit current

limit

IOLL:Z

Pin shorted to VDD

Output extrinsic fall time

tF:Z

CL = 20pF; From 90% to 10% of VDD

Output extrinsic rise time

tR:Z

CL = 20pF; From 10% to 90% of VDD

LED DRIVER CHARACTERISTICS

LEDK pin voltage

TA ≤ -40°C; IOL:K ≤ 85mA

0.60

TA ≤ 25°C; IOL:K ≤ 85mA

0.70

TA ≤ 125°C; IOL:K ≤ 85mA

0.80

LEDK output current

IOL:K

ILED = 0x00; VK(min) ≤ V(LEDK) ≤ VK(max)

0.1

10.0

µA

ILED = 0x01; VK(min) ≤ V(LEDK) ≤ VK(max)

0.60

ILED = 0x7F; VK(min) ≤ V(LEDK) ≤ VK(max)

LEDK current differential non-

linearity

DNLI:K

ILED<7> = 0; VK(min) ≤ V(LEDK) ≤ VK(max)

-0.75

0.75

LSB

Closed-loop LED current update

period

tupd:N

LEDLP<7> = 0; ILED<7> = 1

LED drive-alarm threshold

IOLA:K

0.875*ILED<6:0>

MODE PIN CHARACTERISTICS

Input low voltage

VIL:M

0.3*VDD

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