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參數(shù)資料
| 型號： | SAA4952WP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | Memory controller |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC44 |
| 封裝： | PLASTIC, SOT-187, LCC-44 |
| 文件頁數(shù)： | 15/32頁 |
| 文件大?。?/td> | 159K |
| 代理商： | SAA4952WP |
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1997 Jun 10
15
Philips Semiconductors
Objective specification
Memory controller
SAA4952WP
Table 13
Horizontal programming range of CLV, HWE1 and HVACQS
Nr (programmed start value of corresponding signal) not equal Nf (programmed stop value of corresponding signal).
Notes
1.
2.
N: programmed value of HVACQS1 pulse.
M: programmed value of HVACQS2 pulse.
The programmed values include the MSB setting contained in HAMSBDEL.
For SDAF = 1 the factors in front of Nr and Nf are doubled.
For EXTLLA = 1 the equations for LLA = 18 MHz are valid.
The programming margins depend on the used external clock frequency.
ACQUISITION FREQUENCY
(MHz)
TIMING EQUATIONS
PROGRAMMING RANGE
12
CLV
r
= (4Nr + 2)LLA
CLV
f
= (4Nf + 2)LLA
HWE1
r
= (2Nr + 2)LLA
HWE1
f
= (2Nf + 2)LLA
HVACQS1 = (4N
(1)
+ 2)LLA
HVACQS2 = (4M
(2)
+ 2)LLA
CLV
r
= (4Nr + 2)LLA
CLV
f
= (4Nf + 2)LLA
HWE1
r
= (2Nr + 2)LLA
HWE1
f
= (2Nf + 2)LLA
HVACQS1 = (4N
(1)
+ 2)LLA
HVACQS2 = (4M
(2)
+ 2)LLA
CLV
r
= (4Nr + 2)LLA
CLV
f
= (4Nf + 2)LLA
HWE1
r
= (2Nr + 2)LLA
HWE1
f
= (2Nf + 2)LLA
HVACQS1 = (4N
(1)
+ 2)LLA
HVACQS2 = (4M
(2)
+ 2)LLA
CLV
r
= (8Nr + 2)LLA
CLV
f
= (8Nf + 2)LLA
HWE1
r
= (4Nr + 2)LLA
HWE1
f
= (4Nf + 2)LLA
HVACQS1 = (8N
(1)
+ 2)LLA
HVACQS2 = (8M
(2)
+ 2)LLA
0
≤
Nr < 191
0
≤
Nf < 191
0
≤
Nr < 383
0
≤
Nf < 383
0
≤
N < 191
0
≤
M < 191
0
≤
Nr < 215
0
≤
Nf < 215
0
≤
Nr < 431
0
≤
Nf < 431
0
≤
N < 215
0
≤
M < 215
0
≤
Nr < 255
0
≤
Nf < 255
0
≤
Nr < 511
0
≤
Nf < 511
0
≤
N < 255
0
≤
M < 255
0
≤
Nr < 143
0
≤
Nf < 143
0
≤
Nr < 287
0
≤
Nf < 287
0
≤
N < 143
0
≤
M < 143
13.5
16
18
LLAEXT
--------1
N
×
64
μ
s
≤
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| SAA4963 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated NTSC comb filter |
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