PCA9620HQ900 datasheet(11/81 Pages) NXP

Part #	PCA9620HQ900

Description	60 x 8 LCD high-drive segment driver for automotive and industrial

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Manufacturer	NXP [NXP Semiconductors]

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PCA9620

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Product data sheet

Rev. 3 — 3 July 2013

11 of 81

NXP Semiconductors

PCA9620

60 x 8 LCD high-drive segment driver for automotive and industrial

8.1.11 Command: frame-frequency

With the frame-frequency command, the frame frequency and the output clock frequency

can be configured.

[1]

Nominal frame frequency calculated for the default clock frequency of 9 600 Hz.

[2]

Duty cycle definition: % HIGH-level time : % LOW-level time.

[3]

Default value.

Table 16.

Load-data-pointer - load data pointer command bit description

Bit

Symbol

Value

Description

7 to 6

-

10

fixed value

5 to 0

P[5:0]

000000 to

111111

6-bit binary value of 0 to 59

Table 17.

Frame frequency - frame frequency and output clock frequency command bit

description

Bit

Symbol

Value

Description

7 to 5

-

011

fixed value

4 to 0

F[4:0]

see Table 18

nominal frame frequency (Hz)

Table 18.

Frame frequency values

F[4:0]

Nominal frame

frequency, ffr (Hz)[1]

Resultant oscillator

frequency, fosc (Hz)

Duty cycle (%)[2]

00000

60

2880

20 : 80

00001

70

3360

7 : 93

00010

80

3840

47 : 53

00011

91

4368

40 : 60

00100

100

4800

33 : 67

00101

109

5232

27 : 73

00110

120

5760

20 : 80

00111

129.7

6226

13 : 87

01000

141.2

6778

5 : 95

01001

150

7200

50 : 50

01010

160

7680

47 : 53

01011

171.4

8227

43 : 57

01100

177.8

8534

41 : 59

01101

192

9216

36 : 64

01110[3]

200

9600

33 : 67

01111

208.7

10018

30 : 70

10000

218.2

10474

27 : 73

10001

228.6

10973

23 : 77

10010

240

11520

20 : 80

10011

252.6

12125

16 : 84

10100, 10101

266.7

12802

10 : 90

10110, 10111

282.4

13555

5 : 95

11000 to 11111

300

14400

50 : 50

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