CXA2000 datasheet(30/48 Pages) SONY

30 / 48 page

– 30 –

CXA2000Q

PIN-PHASE

(4)

: Horizontal trapezoidal distortion compensation amount adjustment (V parabola wave

center timing control)

0h = 1.5ms advance

Horizontal size for top of picture increases; horizontal size for

bottom of picture decreases.

7h = 0ms

8.9ms from 4VDC VTIM

Fh = 1.5ms delay

Horizontal size for top of picture decreases; horizontal size

for bottom of picture increases.

CORNER-PIN (4)

: Horizontal pin distortion compensation amount adjustment for top/bottom of picture

(V parabola wave top/bottom gain control)

0h = –0.2V

Horizontal size for top/bottom of picture decreases.

(compensation amount maximum)

7h = 0V

(0.7Vp-p 4:3 mode)

Fh = +0.2V

Horizontal size for top/bottom of picture increases.

(compensation amount minimum)

V-ASPECT

(6)

: Aspect ratio control. (Gain control for sawtooth wave)

0h = 75%

16:9 CRT full

2Fh = 100%

4:3 CRT full, amplitude: 1.23Vp-p

3Fh = 112%

ZOOM SW

(1)

: Zoom mode ON/OFF switch for 16:9 CRT (25% of video cut)

0 = Zoom OFF

Sawtooth wave amplitude: 1.23Vp-p

1 = Zoom ON

Sawtooth wave amplitude: 70%

HBLKSW

(1)

: HBLK width control ON/OFF switch during 4:3 software full display mode on a 16:9

CRT

0 = Control OFF

HBLK pulse generated from HPIN.

1 = Control ON

HBLK pulse generated as pulse generated from HPIN or as

pulse generated from HVCO and width adjusted.

Width adjustment is performed by the LEFT-BLK and

RIGHT-BLK registers.

V-SCROLL

(6)

: Vertical picture scroll control during zoom mode on a 16:9 CRT

(DC component added to sawtooth wave AGC output to control ZOOMSW cut

timing.)

0h = –0.2V

Scrolled toward top of screen by 32H and top of picture zoomed.

1Fh =

3Fh = +0.2V

Scrolled toward bottom of screen by 32H and bottom of picture zoomed.

JUMPSW

(1)

: Reference pulse jump mode ON/OFF switch (In addition to V-ASPECT control, sawtooth

wave gain control performed for 100% of VBLK interval and 67% of picture interval)

0 = Jump mode OFF

1 = Jump mode ON

On a 4:3 CRT, jump mode expands the sawtooth wave amplitude to 112% with V-

ASPECT; on a 16:9 CRT, jump mode compresses the sawtooth wave amplitude to

75% with V-ASPECT. The V blanking width is expanded at both the top and bottom

of the picture. Blanking for the bottom of the picture starts 251H after VTIM, and

blanking for the top of the picture can be varied as the blanking width after the

reference pulse from the VBLKW register.

HSIZESW

(1)

: Lowers the E-W OUT DC level (during H-SIZE compression)

0 = Normal

1 = –1.35V

CXA2000 датащи(PDF) 30 Page - Sony Corporation

CXA2000 датащи(HTML) 30 Page - Sony Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

датащи скачать

ссылки URL