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| 型號(hào)： | AD8306ARZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC LOG-LIMITING AMP 16-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Choosing and Using RF Detectors |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 限制-對(duì)數(shù)放大器 |
| 應(yīng)用： | 接收器信號(hào)強(qiáng)度指示（RSSI） |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SO |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 550 (CN2011-ZH PDF) |
REV. A
AD8306
–14–
Table III. Evaluation Board Setup Options
Component
Function
Default Condition
SW1
Device Enable
. When in Position A, the ENBL pin is connected to +VS and the
SW1 = A
AD8306 is in normal operating mode. In Position B, the ENBL pin is connected
to an SMA connector labeled Ext Enable. A signal can be applied to this connector
to enable/disable the AD8306.
R1
This pad is used to ac-couple INLO to ground for single-ended input drive. To drive
R1 = 0
the AD8306 differentially, R1 should be removed.
R/L, C1, C2
Input Interface.
The 52.3
resistor in position R10, along with C1 and C2, create
R10 = 52.3
a high-pass input filter whose corner frequency (640 kHz) is equal to 1/(2
πRC),
C1 = C2 = 0.01
F
where C = (C1)/2 and R is the parallel combination of 52.3
and the AD8306’s
input impedance of 1000
. Alternatively, the 52.3 resistor can be replaced by
an inductor to form an input matching network. See Input Matching Network
section for more details.
R3/R4
Slope Adjust.
A simple slope adjustment can be implemented by adding a resistive
R3 = 0
divider at the VLOG output. R3 and R4, whose sum should be about 1 k
, and
R4 =
never less than 40
(see specs), set the slope according to the equation:
Slope = 20 mV/dB
× R4/(R3 + R4).
L1, C5, C6
Limiter Output Coupling.
C5 and C6 ac-couple the limiter’s differential outputs.
L1 = Open
By adjusting these values and installing an inductor in L1, an output matching
C5 = 0.01
F
network can be implemented. To convert the limiter’s differential output to single-
C6 = 0.01
F
ended, R11 and R12 (nominally 0
) can be replaced with a surface mount balun
R9 = Open
such as the ETC1-1-13 (Macom). The balun can be grounded by soldering a 0
R10 = R11 = 0
into Position R9 (nominally open).
R8, LK1
Limiter Output Current.
With LK1 installed, R8 enables and sets the limiter
LK1 Installed. R8 = 402
output current. The limiter’s output current is set according to the equation
R6, R7 (Limited Load
(IOUT = 400 mV/R8). The limiter current can be as high as 10 mA (R8 = 40 ).
Resistors) = 50
To disable the limiter (recommended if the limiter is not being used), LK1 should
be removed.
C7
RSSI Bandwidth Adjust
. The addition of C7 (farads) will lower the RSSI bandwidth of
C7 = Open
the VLOG output according to the equation: fCORNER (Hz) = 12.7 × 10
–6/(C7 + 3.5
× 10–12).
1
2
3
4
5
6
7
8
VLOG
VPS2
PADL
LMHI
LMLO
PADL
FLTR
LMDR
COM2
VPS1
PADL
INHI
INLO
PADL
COM1
ENBL
AD8306
9
10
11
14
15
16
12
13
C3
0.1 F
R10
52.3
C1
0.01 F
C2
0.01 F
R2
10
R1
0
+VS
EXT
ENABLE
C7 (OPEN)
R6
50
C4
0.1 F
R7
50
R3
0
R5
10
R4
(OPEN)
VRSSI
+VS
L1
(OPEN)
C5
0.01 F
C6
0.01 F
LK1
R8
402
SIG
INHI
SIG
INLO
A
BSW1
R12
0
R11
0
R9
(OPEN)
Figure 33. Evaluation Board Schematic
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8306ARZ | 制造商:Analog Devices 功能描述:Logarithmic Amplifier IC |
| AD8306ARZ-REEL | 制造商:Analog Devices 功能描述:SP Amp LOG Amp Single 6.5V 16-Pin SOIC N T/R 制造商:Analog Devices 功能描述:SP AMP LOG AMP SGL 6.5V 16SOIC N - Tape and Reel |
| AD8306ARZ-RL7 | 功能描述:IC LOG-LIMITING AMP 16-SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:60 系列:- 類型:可變?cè)鲆娣糯笃?應(yīng)用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| AD8306-EVAL | 制造商:Analog Devices 功能描述:Evaluation Kit For 5 MHz-400 MHz 100 DB High Precision Limiting-Logarithmic Amplifier 制造商:Analog Devices 功能描述:AD8306 EVALUATION BOARD - Bulk |
| AD8306-EVALZ | 制造商:Analog Devices 功能描述:Evaluation Board For AD8306 制造商:Analog Devices 功能描述:EVALUATION BOARDS - Bulk 制造商:Analog Devices 功能描述:IC LOGARITHMIC AMPLIFIER ((NS)) |
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