参数资料
型号: TB1308FG
元件分类: 信号分离
英文描述: SYNC SEPARATOR IC, PQFP48
封装: 10 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-48
文件页数: 31/33页
文件大小: 659K
代理商: TB1308FG
TB1305FG, TB1308FG
2006-07-03
7
Bus Control Functions
Write Mode
Register Name
Function
Preset Value
MUTE
Swtches mute mode.
0: NORMAL
1: Video mute
NORMAL
(0)
FILPASS
Switches the bandwidth limit filter.
0: ON (by-pass)
1: OFF
ON
(0)
HD WIDTH
Switches the width of HD-OUT.
0: WIDE
1: NARROW
Remark: HD WIDTH = 1 (NARROW) is recommended for the 1125/50p/60p format
owing to crosstalk from HD-OUT to video signals so that spike noises on video
signals will occur.
WIDE
(0)
DAC1,2
1-bit DAC switching
Output voltages of DAC1 (pin 17) and DAC2 (pin 42) are controlled. DAC1/2 are
open-collector pins.
0: LOW (ON)
1: HIGH (OPEN)
LOW
(0)
YCbCr SW
Switches the component video input and line input
00: Y1 / Cb1 / Cr1 / LINE1, 2, 3-1 (pins 1, 2, 3, 4, 5, 6)
01: Y2 / Cb2 / Cr2 / LINE1, 2, 3-2 (pins 10, 11, 12, 13, 14, 15)
10: Y / C (pins 45, 47. Cr-out is muted.)
11: Y3 / Cb3 / Cr3 (pins 39, 41, 43)
NOTE: The data (11) is not available for the TB1305FG.
Y1 / Cb1 / Cr1
(00)
GAIN
Switches the output gain.
Gain of YCbCr output (pins 32, 34, 36) is controlled.
0: 0 dB
1:
+6 dB
Remark: GAIN = 0 (0 dB) is recommended for the 1125/50p/60p format since this
offers superior frequency characteristics to those of +6 dB mode.
0 dB
(0)
f0 SW
Switches the f0 of bandwidth limit filter
0: HIGH
1: LOW
HIGH
(0)
BANDWIDTH
Switches the f0 of bandwidth limit filter
0000000: MIN (low)
1111111: MAX (high)
MIN
(0000000)
fc HALF
Switches the frequency of bandwidth limit filters for Cb/Cr
The cutoff frequency of bandwidth limit filters for Cb/Cr is 1/2 to Y.
0: OFF (same for 3 outputs)
1: ON (1/2 fc for Cb/Cr)
OFF
(0)
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