AS3910-BQFP 查看數據表（PDF） - austriamicrosystems AG

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AS3910-BQFP

13.56 MHz RFID Reader IC, ISO-14443 A/B

austriamicrosystems AG 

AS3910

Data Sheet - Pin Assignments

4 Pin Assignments

Figure 2. Pin Assignments (Top View)

32 31 30 29 28 27 26 25

TIO 1

24 AGD

EN 2

23 RFI2

TEST 3

22 RFI1

XTO 4

XTI 5

AS3910

21 VSS

20 TRIM2_0

VSN_D 6

19 TRIM1_0

VSP_A 7

18 TRIM2_1

VDD 8

17 TRIM1_1

9 10 11 12 13 14 15 16

4.1 Pin Descriptions

Table 1. Pin Descriptions

Pin Name

TIO

EN

TEST

XTO

XTI

VSN_D

VSP_A

VDD

VSP_RF

RFO1

RFO2

VSN_RF

TRIM1_3

Pin Number

1

2

3

4

5

6

7

8

9

10

11

12

13

Pin Type

Digital bidirectional

Digital input with pull-down

Digital input with pull-down

Analog output

Analog input

Supply

Analog I/O

Supply

Analog I/O

Analog output

Analog output

Supply

Analog input

Description

Test IO pin

Enable input

Test input

Xtal oscillator output

Xtal oscillator input

Digital ground

Analog supply, regulator output

External positive supply

Supply, regulator output for antenna drivers

Antenna driver output

Antenna driver output

Ground of antenna drivers

Input to trim antenna resonant circuit

www.austriamicrosystems.com/HF_RFID_Reader/AS3910

Revision 2.3

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