參數(shù)資料
型號(hào)： 935077580157
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP80
封裝： PLASTIC, SOT-318, QFP-80
文件頁(yè)數(shù)： 4/30頁(yè)
文件大?。?/td> 230K
代理商： 935077580157
1996 Oct 25
12
Philips Semiconductors
Preliminary specication
Progressive scan-Zoom and Noise
reduction IC (PROZONIC)
SAA4990H
Table 2
Write registers
REGISTER
BIT
NAME
FUNCTION
Register 10H to 13H (Kstep)
10H
0 to 3 Kstep0
step in adaptive curve from k = 1
16 to k = 18; weight of 1
4 to 7 Kstep1
step in adaptive curve from k = 1
8 to k = 28; weight of 1
11H
0 to 3 Kstep2
step in adaptive curve from k = 2
8 to k = 38; weight of 2
4 to 7 Kstep3
step in adaptive curve from k = 3
8 to k = 48; weight of 2
12H
0 to 3 Kstep4
step in adaptive curve from k = 4
8 to k = 58; weight of 4
4 to 7 Kstep5
step in adaptive curve from k = 5
8 to k = 68; weight of 4
13H
0 to 3 Kstep6
step in adaptive curve from k = 6
8 to k = 78; weight of 8
4 to 7 Kstep7
step in adaptive curve from k = 7
8 to k = 88; weight of 8
Register 14H (xed_k)
14H
0 to 3 fixed_k
determines k value in xed k mode; see Table 8
4 to 5 mult
weighting of TF2 output; see Table 9
6
_upbox
microcontroller (_upbox = 0) or box controlled (_upbox = 1); see Table 6
7
_adfix
adaptive (_adx = 0) or xed k (_adx = 1); see Table 6
Register 15H (Tlter)
15H
0 to 1 Tfilter1_select determines lter1 characteristic; see Table 5
2 to 7 Tfilter2_select determines lter2 characteristic; see Table 7
Register 16H (hor_start_box)
16H
0 to 7 hor_start_box
horizontal start position of box w.r.t. picture
Register 17H (hor_stop_box)
17H
0 to 7 hor_stop_box
horizontal stop position of box w.r.t. picture
Register 18H and 19H (vert_start_box)
18H (bit 8 = 0)
0 to 7 vert_start_box vertical start position of box w.r.t. picture; bit 8 (MSB) is encoded in the
address
19H (bit 8 = 1)
Register 1AH and 1BH (vert_stop_box)
1AH (bit 8 = 0)
0 to 7 vert_stop_box vertical stop position of box w.r.t. picture; bit 8 (MSB) is encoded in the
address
1BH (bit 8 = 1)
Register 1CH (box generation and UV processing)
1CH
0
UV8bit
U/V signals are taken from input as 8-bit values instead of 7-bit
1
UVbin
U/V signals are taken from input as binary signals instead of
twos complement
2
inv_box
inversion of box signal (inv_box = 1)
3
en_box
overall enable box signal
4
en_box_mpd
enable box signal to define movie phase detection area
5
boxPSC
box generation for progressive scan with more than 511 lines
6, 7
reserved
Register 1DH (reserved)
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