AS3991-BQFT austriamicrosystems, AS3991-BQFT Datasheet - Page 6

• Manufacturer Part Number: AS3991-BQFT
• Description: IC UHF RFID READER 64-QFN
• Manufacturer: austriamicrosystems

Specifications of AS3991-BQFT

• Rf Type: Read / Write
• Frequency: 840MHz ~ 960MHz
• Features: ISO-18000-6
• Package / Case: 64-VFQFN, Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AS3991-BQFT; AS3991-BQFTTR

AS3990/AS3991
Data Sheet - P i n A s s i g n m e n t s
Table 1. Pin Descriptions
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VDD_TXPAB
RFOUTP_1
RFOUTP_2
RFOUTN_1
RFOUTN_2
Pin Name
VDD_RFP
VSN_RFP
VDD_RF
RFONX
RFOPX
VDD_D
VDD_B
VSN_D
VEXT2
VSN_1
VSN_2
VSN_3
VSN_4
VSN_5
OSCO
OAD2
CBV5
VEXT
OSCI
OAD
IRQ
IO0
IO1
IO2
IO3
IO4
IO5
EN
Pin Number
20
21
22
23
24
25
26
27
28
14
15
16
17
18
19
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
1
1
1
1
1
1
1
1
1
Pin Type
SUPO
SUPO
SUPO
SUPO
SUPO
SUPI
SUPI
SUPI
SUPI
SUPI
SUPI
SUPI
SUPI
SUPI
OUT
OUT
OUT
OUT
OUT
OUT
OUT
BID
BID
BID
INP
BID
INP
BID
BID
BID
BID
BID
BID
Internal node de-coupling capacitor to VDD_MIX
Power Amplifier Bias positive supply. Connect to VDD_MIX
Main positive supply input (5…5.5V)
PA positive supply regulator input (2.5… 5.5V)
PA positive supply regulator output, internally regulated to 2…3.5V
PA buffer positive supply. Internally regulated to 3.4V
PA positive RF output
RFOUT1 and RFOUT2 must be tied together
PA negative supply
PA negative RF output or used in single ended mode.
RFOUT1 and RFOUT2 must be tied together
Digital negative supply
Analog or digital received signal output and MCU support mode sense
input
Analog or digital received signal output
Low power linear negative RF output (~0dBm)
Low power linear positive RF output (~0dBm)
RF path positive supply, internally regulated to 3.4V
RF path negative supply
Crystal oscillator input
Crystal oscillator output or external 20MHz clock input
Digital part positive supply, internally regulated to 3.4V
Enable input
Interrupt output
I/O pin for parallel communication
I/O pin for parallel communication
EnableRX input in case of direct mode
I/O pin for parallel communication
Modulation input in case of direct mode
I/O pin for parallel communication
Slave select in case of serial communication (SPI)
I/O pin for parallel communication
Sub-carrier output in case of direct mode
Revision 3.81
Description
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