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AS3900 датащи(PDF) 5 Page - ams AG

номер детали AS3900
подробное описание детали  27MHz Low Power Star Network Transceiver
PDF  59 Pages
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производитель  AMSCO [ams AG]
домашняя страница  http://www.ams.com
Logo AMSCO - ams AG

AS3900 датащи(HTML) 5 Page - ams AG

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www.austriamicrosystems.com/RF-Transceivers/AS3900
Revision 1.00c
5 - 59
AS3900
Data Sheet - Pin Assignm ent
4 Pin Assignment
Figure 2. AS3900 Pin Assignment (Top View)
4.1 Pin Description
Table 1. QFN 28 pin Package
Pin Name
Pin Number
Pin Type
Description
GND
1
S
Negative RF Supply Voltage. Ground reference point for VDDRF.
RF1OUT
2
AO
Transmitter Positive Output. Analog Push/Pull Output of Power Amplifier for
positive amplitude. Output Impedance can be programmed to 12.5
Ω or 25Ω.
Transmitter can be programmed to single ended or true-differential analog
outputs.
RF2OUT
3
AO
Transmitter Negative Output. Analog Push/Pull Output of Power Amplifier for
negative amplitude. Output Impedance can be programmed to 12.5
Ω or 25Ω.
Transmitter can be programmed to single ended or differential analog outputs.
In single ended mode RF2OUT is connected to GND.
GND
4
S
Negative RF Supply Voltage. Ground reference point for RF outputs and
inputs.
RF1IN
5
AI
Receiver Positive Input. Positive analog input of differential Low Noise
Amplifier.
RF2IN
6
AI
Receiver Negative Input. Negative analog input of differential Low Noise
Amplifier.
GND
7
S
Negative RF Supply Voltage. Ground reference point for RF outputs and
inputs.
NC
8
Not connected. Leave the pin floating.
POR
9
DO
Power On Reset output: Digital Output that indicates hardware reset of the
device.
Reset Low: VDD > 1.35V
NC
10
Not connected. Leave the pin floating.
NC
11
Not connected. Leave the pin floating.
VDD_OTP
12
S
Positive OTP Supply Voltage. 2.2V to 3.6V for operation mode. For fuse
mode apply a minimum supply voltage of 3.3V. Buffer capacitors of 10µF and
100nF are needed for fuse mode.
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
RF1OUT
RF2OUT
GND
RF1IN
RF2IN
GND
SEN
SCLK
SDATAI
NC
IRQ
MCU_CLK
SDATAO
AS3900
15
16
17
18
19
20
22
23
24
25
26
27
28
21
Exp. Pad



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