- 您现在的位置：买卖IC网 > PDF目录8607 > AD8309ARU-REEL7 (Analog Devices Inc)IC LOG AMP DEMODULATING 16-TSSOP PDF资料下载
参数资料
| 型号： | AD8309ARU-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/20页 |
| 文件大小： | 0K |
| 描述： | IC LOG AMP DEMODULATING 16-TSSOP |
| 标准包装： | 1,000 |
| 类型： | 对数放大器 |
| 应用： | 接收器信号强度指示（RSSI） |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
REV. B
AD8309
–19–
Table IV. 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
AD8309 is in normal operating mode. In position B, the ENBL pin is connected
to an SMA connector labeled Ext Enable. An applied signal can be applied to this
connector to enable/disable the AD8309. If left open, the ENBL pin will float to
ground putting the device in power-down mode.
R1
This pad is used to ac-couple to ground for single-ended input drive. To drive the
R1 = 0
AD8309 differentially, R1 should be removed.
R/L, C1, C2
Input Interface. The 52.3
resistor in position R/L along with C1 and C2 create
R/L= 52.3
a high pass input filter whose corner frequency (640 kHz) is equal to 1/(
πRC),
C1 = C2 = 0.01
F
where C = C1 = C2 and R is the parallel combination of 52.3
and the AD8309’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.
C6 = 0.01
F
R8, LK1
Limiter Output Current. With LK2 installed, R8 enables and sets the limiter
LK1 Installed. R8 = 402
output current. The limiter’s output current is set according to the equation
(IOUT = 400 mV/R8). The limiter current can be as high as 10 mA (R8 = 40 ).
To disable the limiter (recommended if the limiter is not being used), LK3 should
be removed.
C7
RSSI Bandwidth Adjust. The addition of C7 will lower the RSSI bandwidth of the
C7 = Open
VLOG output according to the equation: fCORNER = 12.7 × 10
–6/(C
FILT + 3.5 pF).
Figure 41. Layout of Signal Layer
Figure 42. Layout of Power Layer
相关PDF资料 |
PDF描述 |
|---|---|
| AD8309ARUZ-REEL7 | IC AMP LOG DEMODULATING 16TSSOP |
| 74LVC1G04FW4-7 | IC GATE INVERTER SGL DFN1010-6 |
| LTC2619IGN#PBF | IC DAC 14BIT R-R QUAD 16SSOP |
| AD8307AR-REEL7 | IC LOGARITHMIC AMP 8-SOIC |
| VI-242-IV-F4 | CONVERTER MOD DC/DC 15V 150W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8309ARUZ | 功能描述:IC LOGARITHM AMP 100DB 16-TSSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:可变增益放大器 应用:CATV 安装类型:表面贴装 封装/外壳:20-WQFN 裸露焊盘 供应商设备封装:20-TQFN-EP（5x5） 包装:托盘 |
| AD8309ARUZ | 制造商:Analog Devices 功能描述:IC LOGARITHMIC AMP 67NS TSSOP-16 |
| AD8309ARUZ-REEL7 | 功能描述:IC AMP LOG DEMODULATING 16TSSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 放大器 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:可变增益放大器 应用:CATV 安装类型:表面贴装 封装/外壳:20-WQFN 裸露焊盘 供应商设备封装:20-TQFN-EP（5x5） 包装:托盘 |
| AD8309-EVAL | 制造商:Analog Devices 功能描述:AD8309 EVALUATION BOARD - Bulk |
| AD8309-EVALZ | 制造商:Analog Devices 功能描述:EVAL KIT FOR 5 MHZ-500 MHZ 100DB DEMODULATING LOGARITHMIC AM - Bulk 制造商:Analog Devices 功能描述:EVAL BOARD, AD8309 LOGARITHMIC AMPLIFIER, Silicon Manufacturer:Analog Devices, Silicon Core Number:AD8309, Kit Application Type:RF / IF, Kit Contents:Eval Board AD8309, Features:(Not Applicable) |
发布紧急采购，3分钟左右您将得到回复。