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AK2401 Folha de dados(PDF) 2 Page - Asahi Kasei Microsystems

Nome de Peças AK2401
Descrição Electrónicos  Direct Conversion Transceiver
Download  103 Pages
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Fabricante Electrônico  AKM [Asahi Kasei Microsystems]
Página de início  http://www.akm.com
Logo AKM - Asahi Kasei Microsystems

AK2401 Folha de dados(HTML) 2 Page - Asahi Kasei Microsystems

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[AK2401]
017003093-E-00
2017/3
2
4. Table of Contents
1.
General Description......................................................................................................................... 1
2.
Features........................................................................................................................................... 1
3.
Application ....................................................................................................................................... 1
4.
Table of Contents ............................................................................................................................ 2
5.
Block Diagram and Functions ......................................................................................................... 5
5.1.
Block Diagram.............................................................................................................................. 5
5.2.
Functions ..................................................................................................................................... 5
6.
Pin Configurations and Functions ................................................................................................... 7
6.1.
Pin Configurations ....................................................................................................................... 7
6.2.
Pin Functions ............................................................................................................................... 8
6.3.
Handling of Unused Pins ........................................................................................................... 10
7.
Absolute Maximum Ratings........................................................................................................... 11
8.
Recommended Operating Conditions ........................................................................................... 11
9.
Digital Characteristics.................................................................................................................... 12
9.1.
DC Characteristics ..................................................................................................................... 12
9.2.
System Reset............................................................................................................................. 12
9.3.
Serial Interface Timing for Register Access .............................................................................. 13
9.4.
Serial Interface Timing for Programmable FIR Filter Coefficient Setting .................................. 14
9.5.
Serial Interface Timing for ADC Data Readout ......................................................................... 14
9.6.
Serial Interface Timing for DAC Data Write............................................................................... 15
10.
Analog Characteristics .................................................................................................................. 16
10.1.
Receiving Characteristics ...................................................................................................... 16
10.1.1.
LNA ................................................................................................................................. 16
10.1.2.
MIXER+PGA+AAF+ADC ................................................................................................ 16
10.1.3.
LOCAL BUFFER+LOCAL DIVIDER (RX) ...................................................................... 18
10.1.4.
PLL SYNTHESIZER ....................................................................................................... 18
10.1.5.
RSSI................................................................................................................................ 19
10.2.
Transmission Characteristics................................................................................................. 20
10.2.1.
DAC+SMF....................................................................................................................... 20
10.2.2.
LOCAL BUFFER+LOCAL DIVIDER(TX)+DRIVER AMP ............................................... 20
10.3.
Current Consumption ............................................................................................................. 21
11.
Typical Performance Characteristics ............................................................................................ 22
12.
Operation Sequence ..................................................................................................................... 22
12.1.
Power-up Sequence............................................................................................................... 22
12.2.
Power-up Sequence of PLL Synthesizer ............................................................................... 23
12.3.
DC Offset Calibration Sequence............................................................................................ 24
13.
Functional Descriptions ................................................................................................................. 25
13.1.
Power Management ............................................................................................................... 25
13.2.
Operation Mode Setting ......................................................................................................... 27
13.3.
Level Diagram ........................................................................................................................ 28
13.3.1.
Level Diagram of Analog Receiving Circuit .................................................................... 28
13.3.2.
Level Diagram of Digital Receiving Circuit ..................................................................... 29
13.4.
Analog Receiving Circuit (LNA) ............................................................................................. 30
13.5.
Analog Receiving Circuit (MIXER, PGA, AAF) ...................................................................... 32
13.5.1.
MIXER............................................................................................................................. 32
13.5.2.
Analog Filter Frequency Characteristics......................................................................... 33
13.5.3.
Output Path Selection of Analog Baseband Signal ........................................................ 34
13.6.
LOCAL BUFFER, LOCAL DIVIDER ...................................................................................... 35
13.6.1.
LOCAL BUFFER............................................................................................................. 35
13.6.2.
LOCAL DIVIDER............................................................................................................. 35
13.6.3.
Phase Calibration............................................................................................................ 35
13.7.
PLL SYNTHESIZER............................................................................................................... 38
13.7.1.
CHARGE PUMP, LOOP FILTER ................................................................................... 38
13.7.2.
Frequency Setting........................................................................................................... 39
13.7.3.
Frequency Offset Adjustment ......................................................................................... 39


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