AK1291 参数 Datasheet PDF下载

[AK1291]

AK1291

IF Variable Gain Amplifier with RSSI

1. Overview

AK1291 is a variable gain amplifier with a power detector. It’s operating frequency ranges from

100MHz to 300MHz. The gain control adopts an analog signal control, and the gain characteristic is dB

linear. The gain control range is -9dB to +21dB and a dynamic range is 30dB. AK1291 has single-ended

input and output, with impedance of 50

Ω.

As a typical characteristic, NF is 7dB (at maximum gain) , and

IMD3 is 70dBc at output power of -15dBm ,at frequency of 165MHz.The power supply voltage is 4.75V

to 5.25V.

2. Feature

▪Operation

Frequency Range

▪Gain

variable range

▪Noise

Figure

▪IMD3

▪Supply

Voltage

▪Operating

Temperature

▪Package

100MHz to 300MHz

-9dB to 21dB

7dB @max gain

70dBc @output power -15dBm

4.75V to 5.25V

-40°C to +85°C

24pin QFN0404

3. Block Diagram

VSS6

VSS1

RFINP

RFINN

PVDD

GCON

VSS2

BIAS

COM

VSS5

IAVDD

OAVD

VSS4

VSS3

Buffer

RFOUT

DETVDD

Detector

DETIN

ENAB

DETOUT

Fig 1. Block Diagram

MS-E-1148-00

-1-

2012/11