參數(shù)資料
型號: SAA7186
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Digital video scaler
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: PLASTIC, SOT-317-2, QFP-100
文件頁數(shù): 17/44頁
文件大小: 223K
代理商: SAA7186
May 1993
17
Philips Semiconductors
Preliminary specification
Digital video scaler
SAA7186
Fig.5
Output port transfer to VRAM at 32-bit data format without scaling. If VCLK cycles occur at VOEN = HIGH,
the FIFO register is unchanged, but the outputs VRO(31-0) remain in 3-state position.
handbook, full pagewidth
PIXCLK
(LLC/2)
MEH407
FIFO memory
filling level
6
7
8
7
7
6
5
5
4
3
3
7
1
2
3
4
5
6
0
7
HFL
VCLK
VOEN
VRO(n)
min. 8 samples
available in FIFO
max. 32LLC
(16 PIXCLK
1 transfer cycle
(8 VCLK cycles)
Fig.6 Vertical reset timing to the VRAM.
handbook, full pagewidth
MEH406
min.
64LLC
min. set-up time
vertical blanking
active
video
64LLC
10LLC
line n
line n+1
(1)
(1) pulse only at
interlace scan
line increment (VRAM) only in odd field
(1)
internal
signal
HFL
INCADR
last half-full request for line n
vertical reset
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