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SiGe High-Linearity, 2000MHz to 3000MHz
Downconversion Mixer with LO Buffer
Pin Description
PIN
1, 6, 8, 14
2
3, 4, 5, 10,
12, 13, 17
7
9, 15
11
16
18, 19
20
—
NAME
V CC
RF
GND
LOBIAS
N.C.
LO
LEXT
IF-, IF+
IFBIAS
EP
FUNCTION
Power Supply. Bypass to GND with 0.01μF capacitors as close as possible to the pin.
Single-Ended 50 Ω RF Input. Internally matched and DC shorted to GND through a balun. Requires
an input DC-blocking capacitor.
Ground. Internally connected to the exposed pad. Connect all ground pins and the exposed pad
(EP) together.
LO Amplifier Bias Control. Output bias resistor for the LO buffer. Connect a 604 Ω 1% resistor
(230mA bias condition) from LOBIAS to ground.
Not internally connected. Pins can be grounded.
Local Oscillator Input. This input is internally matched to 50 Ω . Requires an input DC-blocking
capacitor.
External Inductor Connection. Connect an inductor from this pin to ground to increase the RF-to-IF
and LO-to-IF isolation (see the Typical Operating Characteristics for typical performance vs. inductor
value).
Mixer Differential IF Output. Connect pullup inductors from each of these pins to V CC (see the
Typical Application Circuit ).
IF Amplifier Bias Control. IF bias resistor connection for the IF amplifier. Connect a 698 Ω 1% resistor
(230mA bias condition) from IFBIAS to GND.
Exposed Pad. Internally connected to GND. Connect to a large ground plane using multiple vias to
maximize thermal and RF performance.
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功能描述:上下转换器 High-Gain 1.8GHz to 2.9GHz Downconv 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
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