参数资料
型号: MAX2411A
厂商: Maxim Integrated Products, Inc.
英文描述: Hex Buffers/Drivers With Open-Collector High-Voltage Outputs 14-SOIC 0 to 70
中文描述: 低成本、RF上/下变频器,带有LNA及PA驱动器
文件页数: 8/14页
文件大小: 134K
代理商: MAX2411A
M
Low-Cost RF Up/Downc onverter
with LNA and PA Driver
8
_______________________________________________________________________________________
______________________________________________________________Pin Desc ription
PIN
Ground. Connect GND to the PC board ground plane with minimal inductance.
GND
1, 3, 4, 12, 14,
18, 20, 23, 28
FUNCTION
NAME
RF Input to LNA. AC couple to this pin. At 1.9GHz, LNAIN can be easily matched to 50
with one
external shunt 1pF capacitor.
LNAIN
2
Supply Voltage (2.7V to 5.5V). Bypass V
CC
to GND at each pin with a 47pF capacitor as close to
each pin as possible.
V
CC
5, 10
Logic-Level Enable for Receiver Circuitry. A logic high turns on the receiver. When TXEN and
RXEN are both at a logic high, the part is placed in standby mode, with a 160μA (typical) supply
current. If TXEN and RXEN are both at a logic low, the part is set to shutdown mode, with a
0.1μA (typical) supply current.
RXEN
6
50
Local-Oscillator (LO) Input Port. AC couple to this pin.
LO
7
50
Inverting Local-Oscillator Input Port. For single-ended operation, connect
LO
directly to
GND. If a differential LO signal is available, AC couple the inverted LO signal to this pin.
LO
8
Logic-Level Enable for Transmitter Circuitry. A logic high turns on the transmitter. When TXEN
and RXEN are both at a logic high, the part is placed in standby mode, with a 160μA (typical)
supply current. If TXEN and RXEN are both at a logic low, the part is set to shutdown mode, with
a 0.1μA (typical) supply current.
TXEN
9
Gain-Control Input for PA Driver. By applying an analog control voltage between 0V and 2.15V, the
gain of the PA driver can be adjusted over a 35dB range. Connect to V
CC
for maximum gain.
GC
11
Power Amplifier Driver Output. AC couple to this pin. Use external shunt inductor to V
CC
to match
PADROUT to 50
. This also provides DC bias. See the Typical Operating Characteristics for a
plot of PADROUT Impedance vs. Frequency.
PADROUT
13
PA Driver Input Grounds. Connect GND to the PC board ground plane with minimal inductance.
GND
15, 17
RF Input to Variable-Gain Power Amplifier Driver. Internally matched to 50
. AC couple to this
pin. This input typically provides a 2:1 VSWR at 1.9GHz. AC couple to this pin. See the Typical
Operating Characteristics for a plot of PADRIN Impedance vs. Frequency.
PADRIN
16
RF Output of Transmit Mixer (upconverter). Use an external shunt inductor to V
CC
as part of a
matching network to 50
. This also provides DC bias. AC couple to this pin. See the Typical
Operating Characteristics for a plot of TXMXOUT Impedance vs. Frequency.
TXMXOUT
19
Differential IF Port of Transmit (Tx) and Receive (Rx) Mixers, Inverting Side. In Rx mode, this output
is an open collector and should be pulled up to V
CC
with an inductor. This inductor can be part of
the matching network to the desired IF impedance in both Tx and Rx modes. Additionally, a resistor
may be placed across IF and
IF
to set a terminating impedance. In Tx mode, this input is internally
AC-coupled; however, AC couple to this pin externally. For single-ended operation, connect this
port to V
CC
and bypass with 1000pF capacitor to GND.
IF
21
Differential IF Port of Tx and Rx Mixers, Noninverting Side. In Rx mode, this output is an open collec-
tor and should be pulled up to V
CC
with an inductor. This inductor can be part of the matching net-
work to the desired IF impedance in both Tx and Rx modes. Additionally, a resistor may be placed
across IF and
IF
to set a terminating impedance. In Tx mode, this input is internally AC coupled;
however, AC couple to this pin externally.
IF
22
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相关代理商/技术参数
参数描述
MAX2411AE/D 功能描述:上下转换器 Low-Cost RF Up/Downconverter with LNA and PA Driver RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX2411AEEI 功能描述:上下转换器 RF Up/Down Cnvrtr w/LNA & PA Driver RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX2411AEEI+ 功能描述:上下转换器 RF Up/Down Cnvrtr w/LNA & PA Driver RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX2411AEEI+T 功能描述:上下转换器 RF Up/Down Cnvrtr w/LNA & PA Driver RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX2411AEEI-T 功能描述:上下转换器 RF Up/Down Cnvrtr w/LNA & PA Driver RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128