SAA7114H Datasheet, PDF (124/140 Pages) NXP Semiconductors – PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC combfilter, VBI-data slicer and high performance scaler

Philips Semiconductors
Preliminary specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI-data slicer and high performance scaler
SAA7114H
Table 114 Prescaler DC gain and FIR prefilter control; register set A (A2H[7:4]) and B (D2H[7:4])
X = don’t care.
FIR PREFILTER CONTROL
Luminance FIR filter bypassed
H_y(z) = ¹â„₄(1 2 1)
H_y(z) = ¹â„₈(−1 1 1.75 4.5 1.75 1 −1)
H_y(z) = ¹â„₈(1 2 2 2 1)
Chrominance FIR filter bypassed
H_uv(z) = ¹â„₄(1 2 1)
H_uv(z) = ¹â„₃₂(3 8 10 8 3)
H_uv(z) = ¹â„₈(1 2 2 2 1)
CONTROL BITS D7 TO D4
PFUV1 PFUV0 PFY1 PFY0
X
X
0
0
X
X
0
1
X
X
1
0
X
X
1
1
0
0
X
X
0
1
X
X
1
0
X
X
1
1
X
X
15.5.10 SUBADDRESSES A4H TO A6H
Table 115 Luminance brightness setting; register set A (A4H[7:0]) and B (D4H[7:0])
LUMINANCE
BRIGHTNESS SETTING
Value = 0
Nominal value = 128
Value = 255
BRIG7
0
1
1
BRIG6
0
0
1
CONTROL BITS D7 TO D0
BRIG5
0
0
1
BRIG4
0
0
1
BRIG3
0
0
1
BRIG2
0
0
1
BRIG1
0
0
1
BRIG0
0
0
1
Table 116 Luminance contrast setting; register set A (A5H[7:0]) and B (D5H[7:0])
LUMINANCE CONTRAST
SETTING
Gain = 0
Gain = ¹â„₆₄
Nominal gain = 64
Gain = ¹²⁷⁄₆₄
CONT7
0
0
0
0
CONT6
0
0
1
1
CONTROL BITS D7 TO D0
CONT5
0
0
0
1
CONT4
0
0
0
1
CONT3
0
0
0
1
CONT2
0
0
0
1
CONT1
0
0
0
1
CONT0
0
1
0
1
Table 117 Chrominance saturation setting; register set A (A6H[7:0]) and B (D6H[7:0])
CHROMINANCE
SATURATION SETTING
Gain = 0
Gain = ¹â„₆₄
Nominal gain = 64
Gain = ¹²⁷⁄₆₄
SATN7
0
0
0
0
SATN6
0
0
1
1
CONTROL BITS D7 TO D0
SATN5
0
0
0
1
SATN4
0
0
0
1
SATN3
0
0
0
1
SATN2
0
0
0
1
SATN1
0
0
0
1
SATN0
0
1
0
1
2000 Mar 15
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