參數(shù)資料
型號(hào)： PNX8511
廠商： NXP Semiconductors N.V.
英文描述： Analog companion chip
中文描述： 模擬伴隨芯片
文件頁(yè)數(shù)： 48/92頁(yè)
文件大?。?/td> 3064K
代理商： PNX8511
Philips Semiconductors
PNX8510/11
Analog companion chip
Product data
Rev. 04 – 12 January 2004
48 of 92
9397 750 12612
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
7:0
GAINV
R/W
0xaf
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
GAINU
6
DECOE
R/W
R/W
0
0
Bit 8 of register 0x5B
Odd/even field control via RTC interface
0 = Disabled
1 = Enabled
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
5:0
BLCKL
R/W
0x33
Offset 0x5E - BLNNL
7
GAINV
6
DECPH
R/W
R/W
0
0
Bit 8 of register 0x5C
Subcarrier phase reset control via RTC interface
0 = Disabled
1 = Enabled
Variable blanking level
White to sync = 140 IRE
recommended BLCKL=0x2E
BLNNL=0 (output black level = 26 IRE)
BLNNL=0x3F (output black level = 46 IRE)
output black level/IRE=BLCKL x 2/6.29+25.4
White to sync = 143 IRE
recommended BLCKL=0x35
BLNNL=0 (output black level = 26 IRE)
BLNNL=0x3F (output black level = 46 IRE)
output black level/IRE=BLCKL x 2/6.18+25.9
5:0
BLNNL
R/W
0x35
Table 29:
* indicates not present in secondary video channel
Bit
Symbol
PNX8510/11 video registers
…continued
Access Value
Description
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