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50MHz to 1000MHz High-Linearity,
Serial/Analog-Controlled VGA
External Bias
Bias currents for the driver amplifier are set and opti-
mized through external resistors. Resistors R1 and R1A
connected to RSET (pin 18) set the bias current for the
amplifier. The external biasing resistor values can be
increased for reduced current operation at the expense
of performance. See Tables 4 and 5 for details.
Pin-Compatibility Considerations
The MAX2067 is a simplified version of the MAX2065
analog/digital VGA. The MAX2067 does not contain a
digital attenuator and parallel inputs D0–D4. The asso-
The exposed paddle (EP) of the MAX2067’s 40-pin thin
QFN-EP package provides a low thermal-resistance
path to the die. It is important that the PCB on which the
MAX2067 is mounted be designed to conduct heat
from the EP. In addition, provide the EP with a low-
inductance path to electrical ground. The EP must be
soldered to a ground plane on the PCB, either directly
or through an array of plated via holes.
Table 3. MAX2065/MAX2067 Pin
Comparison
ciated input/output pins are internally connected to
ground (Table 3). Ground the unused input/output pins
to optimize isolation. ( See the Typical Application
Circuit.)
+5V and +3.3V Supply Voltage
The MAX2067 features an optional +3.3V supply voltage
operation with slightly reduced linearity performance.
Layout Considerations
The pin configuration of the MAX2067 has been opti-
mized to facilitate a very compact physical layout of the
device and its associated discrete components.
PIN
8
9
10
11
12
13
14
15
23
29
MAX2065
SER/PAR
STATE_A
STATE_B
D4
D3
D2
D1
D0
ATTEN2_OUT
ATTEN2_IN
MAX2067
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
Table 4. Typical Application Circuit Component Values (HC Mode)
DESIGNATION
C1, C2, C7, C12
C3, C4, C6, C8, C9
C10, C11
L1
R1, R1A
R2 (+3.3V applications only)
R3 (+3.3V applications only)
R4 (+5V applications and
using internal DAC only)
U1
VALUE
10nF
1000pF
150pF
470nH
10 ?
1k ?
2k ?
47k ?
—
SIZE
0402
0402
0402
1008
0402
0402
0402
0402
40-pin thin QFN-EP
(6mm x 6mm)
VENDOR
Murata Mfg. Co., Ltd.
Murata Mfg. Co., Ltd.
Murata Mfg. Co., Ltd.
Coilcraft, Inc.
Panasonic Corp.
Panasonic Corp.
Panasonic Corp.
Panasonic Corp.
Maxim Integrated
Products, Inc.
DESCRIPTION
X7R
C0G ceramic capacitors
C0G ceramic capacitors
1008CS-471XJLC
1%
1%
1%
1%
MAX2067ETL+
20
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MAX2067EVKIT# 功能描述:射频放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel
MAX206C/D 功能描述:RS-232接口集成电路 +5V RS-232 Transceivers with 0.1 F External Capacitors RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX206CAG 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX206CAG+ 功能描述:RS-232接口集成电路 5V RS232 Transceiver w/0.1uF External Cap RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX206CAG+T 功能描述:RS-232接口集成电路 5V RS232 Transceiver w/0.1uF External Cap RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX206CAG-T 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX206CNG 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX206CNG+ 功能描述:RS-232接口集成电路 5V RS232 Transceiver w/0.1uF External Cap RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: