AS3991-BQFT austriamicrosystems, AS3991-BQFT Datasheet - Page 5

• 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
4 Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 1. Pin Descriptions
www.austriamicrosystems.com
Pin Name
VDD_5LFI
VDD_MIX
VSN_MIX
COMN_A
COMP_B
COMN_B
MIX_INN
MIX_INP
MIXS_IN
CBIB
DAC
VSS
VSS
Pin Number
10
11
12
13
VDD_TXPAB
1
2
3
4
5
6
7
8
9
VDD_5LFI
VDD_MIX
VSN_MIX
COMN_A
COMP_B
COMN_B
MIX_INN
MIX_INP
MIXS_IN
CBV5
VEXT
CBIB
DAC
VSS
VSS
Pin Type
SUPO
10
11
12
13
14
15
16
SUPI
SUPI
SUPI
SUPI
OUT
1
2
3
4
5
6
7
8
9
BID
BID
BID
INP
INP
INP
BID
Connect de-coupling capacitor to VDD_5LFI
DAC output for external amplifier support, Output Resistance of DAC
pin is 1kΩ
Positive supply for LF input stage, connect to VDD_MIX
Substrate
Differential mixer positive input
Substrate
Differential mixer negative input
Single ended mixer input
Mixer negative supply
Internal node de-coupling capacitor to GND
Mixer positive supply, internally regulated to 4.8V
AS3990/AS3991
Revision 3.81
Description
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
IO7
IO6
IO5
IO4
IO3
IO2
IO1
OSCO
VDD_RFP
RFOPX
IO0
IRQ
EN
VDD_D
OSCI
VSN_RFP
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