
Philips Semiconductors
PNX8510/11
Analog Companion Chip
9397 750 08865
Koninklijke Philips Electronics N.V. Copyright 2001. All rights reserved.
Product data
Rev. 02 — 8 October 2001
37 of 84
Offset 0x5B, 0x5D(MSB) GAINU
7:0
R/W
0x7d
GAINU
Variable gain for Cb signal; input representation is in accordance
with CCIR656.
White to black = 92.5 IRE
GAINU can be adjusted in a range from -2.17 x nominal to
2.16 x nominal
GAINU=0 (output subcarrier contribution of U = 0)
GAINU=0x76 (output subcarrier contribution of U = nominal)
White to black = 100 IRE
GAINU can be adjusted in a range from -2.05 x nominal to
2.04 x nominal
GAINU=0 (output subcarrier contribution of U = 0)
GAINU=0x7D (output subcarrier contribution of U = nominal)
GAINU=0x6A (nominal Gain for Secam encoding)
Offset 0x5C, 0x5E(MSB) GAINV
7:0
R/W
0xaf
GAINV
Variable gain for Cr signal; input representation is in accordance
with CCIR656.
White to black = 92.5 IRE
GAINV can be adjusted in a range from -1.55 x nominal to
1.55 x nominal
GAINV=0 (output subcarrier contribution of V = 0)
GAINV=0xA5 (output subcarrier contribution of V = nominal)
White to black = 100 IRE
GAINV can be adjusted in a range from -1.46 x nominal to
1.46 x nominal
GAINV=0 (output subcarrier contribution of V = 0)
GAINV=0xAF (output subcarrier contribution of V = nominal)
GAINV=0x7F (nominal Gain for Secam encoding)
Offset 0x5D
BLCKL
7
R/W
0
GAINU
Bit 8 of register 0x5B
6
R/W
0
DECOE
Odd/even field control via RTC interface
0 = Disabled
1 = Enabled
5:0
R/W
0x33
BLCKL
Variable black level; input representation is in accordance with
CCIR656.
White to sync = 140 IRE
recommended BLCKL=0x3A
BLCKL=0 (output black level = 29 IRE)
BLCKL=0x3F (output black level = 49 IRE)
output black level/IRE=BLCKL x 2/6.29+28.9
White to sync = 143 IRE
recommended BLCKL=0x33
BLCKL=0 (output black level = 27 IRE)
BLCKL=0x3F (output black level = 47 IRE)
output black level/IRE=BLCKL x 2/6.18+26.5
Offset 0x5E
BLNNL
7
R/W
0
GAINV
Bit 8 of register 0x5C
6
R/W
0
DECPH
Subcarrier phase reset control via RTC interface
0 = Disabled
1 = Enabled
Bits
Read/
Write
Reset
Value
Name
(Field or Function)
Description