参数资料
| 型号： | AD8366ACPZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/28页 |
| 文件大小： | 0K |
| 描述： | IC DUAL AMP VGA 32LFCSP |
| 标准包装： | 1 |
| 放大器类型： | 可变增益 |
| 电路数： | 2 |
| 输出类型： | 差分 |
| 转换速率： | 1100 V/µs |
| -3db带宽： | 600MHz |
| 电流 - 电源： | 180mA |
| 电压 - 电源，单路/双路(±)： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 32-LFCSP-VQ |
| 包装： | 标准包装 |
| 其它名称： | AD8366ACPZ-R7DKR |
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AD8366
Rev. A | Page 21 of 28
BASEBAND INTERFACE
In most direct-conversion receiver designs, it is desirable to select a
wanted carrier within a specified band. The desired channel can be
demodulated by tuning the LO to the appropriate carrier frequency.
If the desired RF band contains multiple carriers of interest, the
adjacent carriers would also be down converted to a lower IF
frequency. These adjacent carriers can be a problem if they are
large relative to the desired carrier because they can overdrive
the baseband signal detection circuitry. As a result, it is often
necessary to insert a filter to provide sufficient rejection of the
adjacent carriers.
It is necessary to consider the overall source and load impedance
presented by the AD8366 and the ADC input to design the
filter network. The differential baseband output impedance of
the AD8366 is 25 Ω and is designed to drive a high impedance
ADC input. It may be desirable to terminate the ADC input down
to the lower impedance by using a terminating resistor, such as
500 Ω. The terminating resistor helps to better define the input
impedance at the ADC input at the cost of a slightly reduced gain.
The order and type of filter network depends on the desired high
frequency rejection required, pass-band ripple, and group delay.
Figure 57 shows the schematic for a typical fourth-order, Chebyshev,
low-pass filter. Table 4 shows the typical values of the filter
components for a fourth-order, Chebyshev, low-pass filter with
a differential source impedance of 25 Ω and a differential load
impedance of 200 Ω.
L1
L2
C1
L3
L4
C2
ZLOAD
ZSOURCE
0
758
4-
0
51
Figure 57. Schematic of a Fourth-Order, Chebyshev, Low-Pass Filter
Table 4. Typical Values for Fourth-Order, Chebyshev, Low-Pass Filter
3 dB Corner (MHz)
ZSOURCE (Ω)
ZLOAD (Ω)
L1 (μH)
L2 (μH)
L3 (μH)
L4 (μH)
C1 (pF)
C2 (pF)
5
25
200
6.6
6.0
220
180
10
25
200
3.3
3
110
90
28
25
200
1.2
1
39
33
相关PDF资料 |
PDF描述 |
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| AD8367ARU | IC AMP VGA 14TSSOP |
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| AD8369ARUZ-REEL7 | IC AMP VGA 16TSSOP |
| AD8370ARE-REEL7 | IC AMP VGA DIFF LN 16TSSOP |
| AD8372ACPZ-R7 | IC AMP VGA DIFF DUAL LN 32LFCSP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8366-EVALZ | 制造商:AD 制造商全称:Analog Devices 功能描述:DC to 500 MHz, Dual Digital Gain Trim Amplifier |
| AD8367 | 制造商:AD 制造商全称:Analog Devices 功能描述:500 MHz, Linear-in-dB VGA with AGC Detector |
| AD8367_05 | 制造商:AD 制造商全称:Analog Devices 功能描述:500 MHz, Linear-in-dB VGA with AGC Detector |
| AD8367ARU | 功能描述:IC AMP VGA 14TSSOP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:X-AMP® 标准包装:2,500 系列:Excalibur™ 放大器类型:J-FET 电路数:1 输出类型:- 转换速率:45 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:20pA 电压 - 输入偏移:490µV 电流 - 电源:1.7mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):4.5 V ~ 38 V，±2.25 V ~ 19 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:带卷 (TR) |
| AD8367ARU-REEL | 制造商:Analog Devices 功能描述: |
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