SX8677IWLTRT datasheet(11/63 Pages) SEMTECH

Part #	SX8677IWLTRT

Description	Haptics Enabled Multitouch 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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ADVANCED COMMUNICATIONS & SENSING

Rev 1 – 25

th July 2011

11

www.semtech.com

SX8677/SX8678

Haptics Enabled Multitouch 4/5-Wire

Resistive Touchscreen Controller with Proximity Sensing

3

TYPICAL OPERATING CHARACTERISTICS

Conditions as defined in §2.3, TA = +25°C, VDD=VDDM=3.3V unless otherwise specified.

IDD_OFF vs VDD vs TEMP

2.00E-07

2.20E-07

2.40E-07

2.60E-07

2.80E-07

3.00E-07

3.20E-07

3.40E-07

3.60E-07

3.80E-07

4.00E-07

2.3

2.5

2.7

2.9

3.1

3.3

3.5

VDD(V)

25°C

85°C

-40°C

IDD_WAIT vs VDD vs TOUCHRATE

0

1

2

3

4

5

6

7

8

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

3.1

3.2

3.3

3.4

3.5

3.6

VDD(V)

10cps

80cps

2000cps

5000cps

IDD_PROX vs SCANPERIOD vs SENSITIVITY

0

10

20

30

40

50

60

70

80

0

100

200

300

400

500

600

700

800

SCANPERIOD(m s)

0(Min)

5

7(Max)

IDD_HAPT vs VDD vs TEMP

0.0001

0.00011

0.00012

0.00013

0.00014

0.00015

0.00016

0.00017

0.00018

0.00019

0.0002

2.3

2.5

2.7

2.9

3.1

3.3

3.5

VDD(V)

25°C

85°C

-40°C

MIDD_OFF vs MVDD vs TEMP

0.00E+00

5.00E-09

1.00E-08

1.50E-08

2.00E-08

2.50E-08

3.00E-08

3.50E-08

4.00E-08

4.50E-08

5.00E-08

2.3

2.5

2.7

2.9

3.1

3.3

3.5

MVDD(V)

25°C

85°C

-40°C

MIDD_SQUELCH vs MVDD vs TEMP

5.00E-06

6.00E-06

7.00E-06

8.00E-06

9.00E-06

1.00E-05

2.3

2.5

2.7

2.9

3.1

3.3

3.5

MVDD(V)

25°C

85°C

-40°C

VERR vs GAIN vs MVDD

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

GAIN

VOFF(V)

2.3V

3.3V

3.6V

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SX8677IWLTRT Datasheet(PDF) 11 Page - Semtech Corporation

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