ADD8707 データシートの表示（PDF） - Analog Devices

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ADD8707

12-Channel Gamma Buffers with VCOM and Regulator

Analog Devices 

ADD8707

PIN CONFIGURATION AND FUNCTION DESCRIPTION

48 47 46 45 44 43 42 41 40 39 38 37

NC 1

GND 2

VDD 3

VREG OUT 4

FB 5

NC 6

NC 7

VIN11 8

VIN10 9

NC 10

VIN8 11

NC 12

ADD8707

TOP VIEW

(Not to Scale)

36 NC

35 NC

34 NC

33 VOUT4

32 VOUT3

31 VOUT2

30 VOUT1

29 VDD

28 GND

27 VCOM OUT

26 NC

25 NC

13 14 15 16 17 18 19 20 21 22 23 24

Figure 2. 48-Lead LFCSP

Table 4. Pin Function Descriptions

Pin No. Name

Description

1

NC

2

GND

Ground. Normally 0 V.

3

VDD

Supply voltage. Normally 16 V.

4

VREG OUT

Regulator output voltage. Provides reference voltage to resistor string and is internally connected to the top of

the resistor string.

5

FB

Regulator feedback pin. Compares a percentage of the regulator output to the internal 1.2V voltage reference.

Internal resistors are used to program the desired regulator output voltage.

6

NC

7

NC

8

VIN11

Buffer inputs. Normally floating.1

9

VIN10

10

NC

11

VIN8

Buffer inputs. Normally floating.1

12

NC

13

NC

14

VIN7

15

VIN6

Buffer inputs. Normally floating.1

16

VIN5

17

NC

18

VIN3

19

VIN2

Buffer inputs. Normally floating.1

20

VIN1

21

VCOM IN-

VCOM amplifier inverting input.

22

VCOM IN+

VCOM amplifier non-inverting input.

23

NC

24

NC

1 External resistors can be added to modify the internal resistor string to change the gamma voltage. An external resistor calculator is available upon request.

Rev. A | Page 6 of 20

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