AS3991-BQFT austriamicrosystems, AS3991-BQFT Datasheet - Page 7

• 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
1. Internal Power amplifier is not available on AS3990.
Notes:
1. BID: Bidirectional pin
2. INP: Input pin
3. OUT: Output pin
4. SUPI: Supply Input pin
5. SUPO: Supply Output pin
.
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Pin Name
EXP_PAD
COMP_A
VSN_CP
VDD_IO
EXT_IN
CLSYS
VSN_A
VDD_A
VDDLF
VOSC
AGD
VCO
CD2
CD1
ADC
CLK
IO6
IO7
CP
Pin Number
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
Pin Type
SUPO
SUPI
SUPI
SUPI
SUPI
SUPI
OUT
OUT
BID
BID
INP
BID
BID
BID
INP
INP
BID
BID
IN
I/O pin for parallel communication.
MISO in case of serial communication (SPI)
Sub-carrier output in case of direct mode
I/O pin for parallel communication.
MOSI in case of serial communication (SPI)
Clock output for MCU operation
Clock input for MCU communication (parallel and serial)
Positive supply for peripheral communication, connect to host positive
supply
Internal node de-coupling capacitor
Analog reference voltage
Analog part negative supply
RF input in case external VCO is used
Charge pump negative supply
ADC input for external power detector support
Analog part positive supply, internally regulated to 3.4V
VCO input
Internal node de-coupling capacitor
Charge pump output
Positive supply for LF processing, internally regulated to 3.4
Internal node, connect de-coupling capacitor to VDD_5LFI
Exposed paddle, must be tied to GND
Revision 3.81
Description
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