CXA3272R データシートの表示（PDF） - Sony Semiconductor

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CXA3272R

Driver/Timing Generator for Color LCD Panels

Sony Semiconductor 

CXA3272R

Pin

No.

Symbol

38 NC

39 NC

40 B OUT

41 FB B

42 GND2

43 G OUT

44 FB G

45 R OUT

46 FB R

47 VCC2

48 SIG.C

49 VCC1

50 NC

51 NC

52 TEST5

53 NC

54 VREG

55 OSD R

56 OSD G

57 OSD B

58 RESET

59 R/R-Y

60 G/Y

61 B/B-Y

62 SYNC IN

63 VSEP TC

64 GND1

I/O

Description

— NC

— NC

O B signal output

O Time constant for B signal DC voltage feedback∗2

— Analog 12V GND

O G signal output

O Time constant for G signal DC voltage feedback∗2

O R signal output

O Time constant for R signal DC voltage feedback∗2

— Analog 12V power supply

I R, G and B output DC voltage adjustment

— Analog 3V power supply

— NC

— NC

O Test 5 (Leave open or connect to 3V (VCC1 or VDD).)

— NC

— Reference power supply

I External digital R input (common with test)∗3

I External digital G input (common with test)∗3

I External digital B input (common with test)∗3

I System reset∗4

I R/R-Y signal input

I G/Y signal input

I B/B-Y signal input

I Sync signal input (composite)∗5

O Time constant for vertical sync separation

— Analog 3V GND

∗1 HD (CSYNC)/VD signal is input during 3Vp-p separate SYNC and CSYNC input.

∗2 Feedback circuit smoothing capacitor connection for R, G and B output DC level control. Low leakage

capacitor is used because of high impedance.

∗3 External digital signal input. There are two threshold values Vth1 and Vth2. One of R, G and B exceeds

Vth1, all RGB are black levels; exceeding Vth2, white level. Connect to GND during unused.

∗4 TG block system reset. By connecting to GND, this pin is system reset. Capacitance is connected

between this pin and GND, and used.

∗5 SYNC input. Video signal with SYNC is input.

–4–

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