參數(shù)資料
型號: AD8369
廠商: Analog Devices, Inc.
元件分類: 運動控制電子
英文描述: 45 dB Digitally Controlled VGA LF to 600 MHz
中文描述: 45分貝的數(shù)字控制VGA低頻至600兆赫
文件頁數(shù): 17/24頁
文件大小: 968K
代理商: AD8369
REV. 0
AD8369
–17–
3
10
12
4
9
8
7
6
11
5
2
13
1
15
22
24
16
21
20
19
18
23
17
14
25
D-SUB 25 PIN MALE
1nF
R
L
1nF
1nF
1nF
9
10
11
FILT
12
13
14
15
16
INHI COMM
PWUP VPOS SENB
CMDC OPHI
INLO
1
DENB
7
COMM BIT0
2
BIT1
4
BIT2
5
BIT3
6
AD8369
OPLO
C7
0.1 F
8
3
C5
0.1 F
IN
J1
IN
J2
TC4-1W
R1
0
T1
R2
0
C4
C3
OUT
J6
OUT
J7
TC4-1W
R12
0
R11
0
T2
C8
1nF
R5
OPEN
V
S
PWUP
SW 2
3
PWDN
2
1
C8
1nF
R6
0
R7
0
R8
0
R9
0
R10
0
V
S
V
S
A
B
1
1
4
SW3
SW4
R3
1k
R13
1k
LATCH
CLOCK
DATA
R4
1k
C9
OPEN
3
4
6
7
10
9
12
2
5
8
11
2
8
4
SW1
1
2
3
C1
C2
Figure 9. Evaluation Board Schematic
Key considerations when laying out an RF trace with a controlled
impedance include:
Space the ground plane to either side of the signal trace at least
3 line-widths away to ensure that a microstrip (vertical dielec-
tric) line is formed, rather than a coplanar (lateral dielectric)
waveguide.
Ensure that the width of the microstrip line is constant and
that there are as few discontinuations (component pads, etc.)
as possible along the length of the line. Width variations
cause impedance discontinuities in the line and may result
in unwanted reflections.
Do not use silkscreen over the signal line; this will alter the
line impedance.
Keep the length of the input and output connection lines as
short as possible.
3W
3W
W
H
T
r
Figure 8. Cross-Sectional View of a PC Board
The AD8369 contains both digital and analog sections. Care
should be taken to ensure that the digital and analog sections
are adequately isolated on the PC board. The use of separate
ground planes for each section connected at only one point via a
ferrite bead inductor will ensure that the digital pulses do not
adversely affect the analog section of the AD8369.
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AD8369ARUZ 功能描述:IC AMP VGA 16TSSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:X-AMP® 標準包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源,單路/雙路(±):3 V ~ 32 V,±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR