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BIT1612 10-Bit Digital Video Decoder with OSD and T-CON

10: Synchronized with

Output VSYNC

0x: Not Synchronized with VSYNC

Panel clock

R_PWM_REF

Reference clock

Base on panel clock

R_PWM_FREQ

R_PWM_DUTY

PWM Output

Base on reference clock

Figure 6-26 PWM Function

6.28 Video Decoder

6.28.1 Video Decoder Feature

y Three analog inputs, internal analog source selectors, e.g. CVBS x3 or Y/C x1 or ( Y/C x1 and CVBS x1)

or YPbPr (480i or 576i)

y Two 10-bit video CMOS Analog-to-Digital Converters (ADCs) in differential CMOS style for best

S/N-performance

y Fully programmable static gain or automatic gain control (AGC) for the selected CVBS or Y/C channel :

0~12db (Analog) and 0~18db (Digital)

y Automatic Clamp Control (ACC) for CVBS, Y and C

y On-chip clock generator

y Digital PLL for synchronization and clock generation from all standards and non-standard video sources

e.g. consumer grade VTR

y Requires only one crystal (24.576 MHz) for all standards

y Automatic detection of 50 and 60 Hz field frequency, and automatic switching between PAL and NTSC

standards

y Accepts NTSC (J, M, 4.43), PAL (60, B, D, G, H, I, M, N), and SECAM (B, D, G, K, K1, L) video signal

y User programmable luminance peaking or aperture correction

y Adaptive 3/5-line comb filter for two dimensional chrominance/luminance separation

y PAL delay line for correcting PAL phase errors

y Brightness Contrast Saturation (BCS) and Hue control on-chip

y Multi-standard VBI-data slicer decoding closed caption

y MV copy protection detection

y User programmable sharpness filter

y User programmable U/V Gain and CTI function

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Zoom V3 1612 Bedienungsanleitung Seite 51