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參數(shù)資料
| 型號(hào)： | 4040FI5 |
| 元件分類： | 復(fù)位半導(dǎo)體 |
| 英文描述： | 300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit |
| 中文描述： | 4040架F15（3x7683）前端的數(shù)據(jù)資料|射頻調(diào)諧器模塊： |
| 文件頁(yè)數(shù)： | 10/17頁(yè) |
| 文件大?。?/td> | 725K |
| 代理商： | 4040FI5 |
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4040 FI5 RF F
RONT
E
ND
M
ODULE
(3
X
7683, 3
X
7748)
A
DVANCE
D
ATA
S
HEET
M
IXED
D
IGITAL AND
A
NALOG
TV
AND
ATSC A
PPLICATIONS
3X 7683 ED Revision: 07
May 00
Page 10 of 17
7683ED07.doc
P
Table 13
Read Data Format Descriptions
C
ODE
D
ESCRIPTION
R/W
1 = Read mode
POR
Power on reset flag ( POR =1 at power on)
FL
In lock flag (FL= 1 when PLL is locked)
I2, I1, I0
Digital levels for I/O ports P7, P5 and P4 ( not used)
A2, A1, A0
Digital output of 5-level ADC for AFC function. Value for
correct tuning: A2 = 0, A1= 1, A0 = 0
Caution:
Short circuit at pin 18, 19, or 21 can damage internal circuits.
11
ELECTROSTATIC DISCHARGE (ESD) PROTECTION
WARNING:
The tuner contains components that can be damaged by
electrostatic discharge.
Observe these precautions:
Ground yourself before handling the tuner.
Do not touch the tuner connector pins without ESD protection.
12
FREQUENCY TABLE AND I
2
C BUS CODE
12.1
NTSC M/N OFF AIR
Table 14
NTSC M/N Air (IF
PC
= 45.75 MHz)
R
ECEPTION
F
REQUENCY
I
2
C B
US
C
ODE
(
HEX
)
F S
TEP
= 62.5
K
H
Z
F S
TEP
= 50
K
H
Z
C
ONTROL
B
YTE
D
IVIDER
B
YTE
C
ONTROL
B
YTE
D
IVIDER
B
YTE
A
IR
C
HANNEL
C
HANNEL
N
UMBER
P
IX
CARRIER
(MH
Z
)
B
AND
1
2
1
2
1
2
1
2
2
2
55.25
VHF Low
8E
A2
06
50
88
A2
07
E4
3
3
61.25
VHF Low
8E
A2
06
B0
88
A2
08
5C
4
4
67.25
VHF Low
8E
A2
07
10
88
A2
08
D4
5
5
77.25
VHF Low
8E
A2
07
B0
88
A2
09
9C
6
6
83.25
VHF Low
8E
A2
08
10
88
A2
0A
14
7
7
175.25
VHF High
8E
94
0D
D0
88
94
11
44
8
8
181.25
VHF High
8E
94
0E
30
88
94
11
BC
9
9
187.25
VHF High
8E
94
0E
90
88
94
12
34
10
10
193.25
VHF High
8E
94
0E
F0
88
94
12
AC
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