Programming The Fsc; Sd Noninterlaced Mode (240P/288P); Filters; Sd Filters - Analog Devices ADV8003 Hardware Manual

8.4.5.1. Programming the FSC

The subcarrier frequency register value is divided into four FSC registers, as shown in
(fsc[31:0]) must be updated sequentially, starting with Subcarrier Frequency Register 0 and ending with Subcarrier Frequency Register 3.
The reason for this is because the subcarrier frequency only updates when Subcarrier Frequency Register 3 has been updated. The SD
input standard auto detection feature (sd_autodetect_en) must be disabled. The registers to be programmed are described below.
fsc[31:0], Encoder Map, Address 0xE48F[7:0]; Address 0xE48E[7:0]; Address 0xE48D[7:0]; Address 0xE48C[7:0]
This register is used to set the subcarrier frequency value.
Table 78 outlines the values that should be written to the subcarrier frequency registers for NTSC and PAL B/D/G/H/I.
8.4.6.

SD Noninterlaced Mode (240p/288p)

The ADV8003 encoder core supports an SD noninterlaced mode. Using this mode, progressive inputs at twice the frame rate of NTSC and
PAL (240p/59.94 Hz and 288p/50 Hz respectively) can be input into the ADV8003 encoder. If the user selects the input to be 240p or 288p,
sd_non_interlaced must be set correspondingly. Refer to Section 8.2 for more details on setting the input format.
sd_non_interlaced, Encoder Map, Address 0xE488[1]
This bit is used to enable the support of SD non-interlaced modes.
Function
sd_non_interlaced
1
0 
Note: All input configurations, output configurations, and features available in NTSC and PAL modes are available in SD noninterlaced
mode. For 240p/59.94 Hz input, the ADV8003 encoder core should be configured for NTSC operation. For 288p/50 Hz input, the
ADV8003 encoder core should be configured for PAL operation.
8.4.7.

Filters

The ADV8003 encoder core offers numerous filtering options for both SD and ED/HD as well as for both luma and chroma data.

8.4.7.1. SD Filters

Table 79 provides details on the numerous available SD filters.
Rev. B, August 2013

Table 78: Typical F

Register Description
0xE48C F
SC
0xE48D F
SC
0xE48E F
SC
0xE48F F
SC
Description
Enabled
Disabled

Table 79: Internal Filter Specifications

Filter Pass-Band Ripple (dB)
Luma LPF NTSC 0.16
Luma LPF PAL 0.1
Luma Notch NTSC 0.09
Values
SC
NTSC PAL B/D/G/H/I
0 0x1F 0xCB
1 0x7C 0x8A
2 0xF0 0x09
3 0x21 0x2A
1 3 dB Bandwidth (MHz)
4.24
4.81
2.3/4.9/6.6
315
ADV8003 Hardware Manual
Equation 25. The subcarrier frequency registers
2