參數(shù)資料
型號(hào): TVP3026-135AMDN
廠商: Texas Instruments, Inc.
英文描述: Video Interface Palette
中文描述: 視頻接口面板
文件頁(yè)數(shù): 54/107頁(yè)
文件大?。?/td> 513K
代理商: TVP3026-135AMDN
2–40
A resistor (R
SET
) is needed between the FS ADJUST terminal and GND to control the magnitude of the
full-scale video signal. The IRE relationships in Figures 2–13 and 2–14 are maintained regardless of the
full-scale output current.
The relationship between R
SET
and the full-scale output current IOG is:
R
SET
(
) = K1
×
V
ref
(V)/IOG (mA)
The full-scale output current on IOR and IOB for a given R
SET
is:
IOR, IOB (mA) = K2
×
V
ref
(V)/R
SET
(
)
where K1 and K2 are defined as:
(13)
(14)
PEDESTAL
IOG
IOR, IOB
8-BIT OUTPUT
K1 = 11,294
6-BIT OUTPUT
K1 = 11,206
8-BIT OUTPUT
K2 = 8,067
6-BIT OUTPUT
K2 = 7,979
7.5 IRE
0 IRE
K1 = 10,684
K1 =10,600
K2 = 7,462
K2 = 7,374
C (stray + load)
IOG
RL
15 pF
G0 – G7
BLANK
SYNC
(IOG Only)
AVDD
Figure 2–12. Equivalent Circuit of the Current Output (IOG)
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