參數(shù)資料
型號: TVP3030-250
廠商: Texas Instruments, Inc.
英文描述: Video Interface PALETTE Exract(1600×1200,24位真彩色視頻接口調(diào)色器)
中文描述: 視頻接口調(diào)色板Exract(1600 × 1200,24位真彩色視頻接口調(diào)色器)
文件頁數(shù): 70/107頁
文件大?。?/td> 689K
代理商: TVP3030-250
3–4
3.5 Timing Requirements (see Note 5)
TVP3030
-175
TVP3030
-220
TVP3030
-250
UNIT
MIN
MAX
175
175
MIN
MAX
220
220
MIN
MAX
250
250
DOTCLK frequency
MHz
MHz
Pixel clock PLL
Internal frequency
PCLKOUT frequency
110
100
110
100
110
100
MHz
MHz
MCLK PLL frequency
VCO frequency, pixel clock PLL, MCLK PLL, and
loop clock PLL
110
220
110
220
110
250
MHz
CLK0 frequency for VGA mode 2
Clock cycle time
85
85
85
MHz
ns
RCLK
periods
tcyc
TTL
7.1
7.1
7.1
td4
Delay time, RCLK to LCLK (see Note 6)
0.5
0.5
0.5
tsu1
th1
tsu2
th2
Setup time, RS(3–0) valid before RD or WR
Hold time, RS(3–0) valid after RD or WR
Setup time, D(7–0)valid before WR
Hold time, D(7–0)valid after WR
Setup time, VGA(7–0) and VGAHS, VGAVS, and
VGABL valid before CLK0
Hold time, VGA(7–0) and VGAHS, VGAVS, and
VGABL valid after CLK0
Setup time, P(127–0), VGA(7–0), and PSEL valid
before LCLK
Hold time, P(127–0), VGA(7–0), and PSEL valid
after LCLK
Setup time, SYSHS, SYSVS, and OVS valid before
LCLK
Hold time, SYSHS, SYSVS, and OVS valid after
LCLK
Setup time, SYSBL valid before LCLK
Hold time, SYSBL valid after LCLK
Pulse duration, RD or WR low
Pulse duration, RD or WR high
Pulse duration, clock high
Pulse duration, clock low
NOTES:
5. TTL input signals are 0 to 3 V with less than 3 ns rise/fall time between the 10% and 90% levels unless
otherwise specified. For input and output signals, timing reference points are at the 10% and 90% signal
levels. Analog output loads are less than 10 pF. D7–D0 output loads are less than 50 pF. All other output
loads are less than 50 pF unless otherwise specified.
6. This parameter only applies when SCLK is used as the VRAM shift clock. When SCLK is not used, the delay
may be as much as is required by system logic (assuming the loop clock PLL is used to compensate for
the system delay).
10
10
35
0
10
10
35
0
10
10
35
0
ns
ns
ns
ns
tsu3
2
2
2
ns
th3
2
2
2
ns
tsu4
2
2
2
ns
th4
1
1
1
ns
tsu5
2
2
2
ns
th5
1
1
1
ns
tsu6
th6
tw1
tw2
tw3
tw4
3
2
3
2
3
2
ns
ns
ns
ns
ns
ns
50
30
3
3
50
30
2
2
50
30
2
2
TTL
TTL
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