參數(shù)資料
型號: SAA7140A
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: High Performance Scaler HPS
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP128
文件頁數(shù): 56/68頁
文件大小: 432K
代理商: SAA7140A
1996 Sep 04
56
Philips Semiconductors
Objective specification
High Performance Scaler (HPS)
SAA7140A; SAA7140B
Table 73
DC gain control of horizontal prescaler (see Table 1; note 1); data bits DCGX2 to DCGX0
Note
1.
Dependent on the number of active coefficients ‘2’ in the accumulation sequence and the sequence length, the
output amplitude gain has to be renormalization via DCGX.
Table 74
X scaler increment for variable phase scaling in horizontal pixel phase arithmetic (note 1); data bits
XSCI11 to XSCI0 (18H to 38H and 19H to 39H)
Note
1.
Where N
IP
= number of qualified scaler input pixel and N
OP
= number of output pixel.
Table 75
Y scaler increment for vertical down scaling; data bits YSCI9 to YSCI0 (1Ah to 3Ah and 1BH to 3BH)
Table 76
Set upper limit V for colour keying (8-bit; two’s complement); data bits VU7 to VU0 (1CH to 3CH)
Table 77
Set lower limit V for colour keying (8-bit; two’s complement); data bits VL7 to VL0 (1DH to 3DH)
DCGX2
DCGX1
DCGX0
GAIN
×
1
×
1
2
×
1
4
×
1
8
×
1
2
×
1
4
×
1
8
×
1
16
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
XSCI11 TO XSCI0
DESCRIPTION
18H to 38H and
19H to 39H
YSCI9 TO YSCI0
DESCRIPTION
1AH to 3AH
; for YACM = 0 = LPI mode
1BH to 3BH
; for YACM = 1 = accumulation mode
VU7
VU6
VU5
VU4
VU3
VU2
VU1
VU0
DESCRIPTION
1
0
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
as maximum negative value =
128 signal level
limit = 0
as maximum positive value = +127 signal level
VL7
VL6
VL5
VL4
VL3
VL2
VL1
VL0
DESCRIPTION
1
0
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
as maximum negative value =
128 signal level
limit = 0
as maximum positive value = +127 signal level
XSCI
INT
N
N
OP
----------
XPSC
1
+
(
)
---------1024
×
=
YSCI
INT 1024
N
N
OL
----------
1
×
=
YSCI
INT 1024
1
N
N
IL
----------
×
=
相關(guān)PDF資料
PDF描述
SAA7140B High Performance Scaler HPS
SAA7146AHZ Circular Connector; No. of Contacts:66; Series:MS27472; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:18; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:18-35 RoHS Compliant: No
SAA7146AH .012UF/400VDC METAL POLY CAP
SAA7146A Multimedia bridge, high performance Scaler and PCI circuit SPCI
SAA7151 Digital multistandard colour decoder with SCART interface DMSD2-SCART
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7140B 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:High Performance Scaler HPS
SAA7144HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quadruple video input processor
SAA7145 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:PCI Multimedia Bridge
SAA7146 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
SAA7146A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multimedia bridge, high performance Scaler and PCI circuit SPCI