RF6549 Datasheet, PDF (4/10 Pages) RF Micro Devices – 2.7V to 4.4V, 915MHz Transmit/Receive Module; Thru Mode 400MHz to 928MHz

RF6549
Parameter
Antenna Switch Section
Insertion Loss TX-ANT1
Insertion Loss TX-ANT2
Insertion Loss ANT1 - ASWRX
Insertion Loss ANT2 - ASWRX
Insertion Loss RFIO 450
Insertion Loss RFIO 450
Isolation
Tx Return Loss
ANT1 Port Return Loss (Tx Mode)
ANT2 Port Return Loss (Tx Mode)
ASWRX Port Return Loss
ANT1 Port Return Loss (Rx Mode)
ANT2 Port Return Loss (Rx Mode)
Logic Circuit and Power Supply
Section
VCC_DIG
VCC_DIG Supply Current -Rx Mode
VCC_DIG Supply Current -Tx Mode
VCC_DIG Power Down Current
Select Control Logic = HIGH
Select Control Logic = LOW
Select Control Logic High Current
Select Control Logic Low Current
Specification
Min. Typ. Max.
1
1.2
1
1.2
1
1.2
1
1.2
1
1.2
1.5
1.8
20
10
15
8
12
8
12
10
15
10
15
10
15
2.7
4.2
4.4
0.75
3
3
6
5
10
V_DIG 0.2
V_DIG
0.0
0.3
5
10
0.1
2
Unit
Condition
dB TXRX_SEL Logic = LOW , ANT_SEL Logic = HIGH
dB TXRX_SEL Logic = LOW , ANT_SEL Logic = LOW
dB TXRX_SEL Logic = HIGH , ANT_SEL Logic = HIGH
dB TXRX_SEL Logic = HIGH , ANT_SEL Logic = LOW
dB RFIO 450 pin 4 to Ant1/2 at 450MHz
dB RFIO 450 pin 4 to Ant1/2 at 915MHz
dB Any used port to any unused port
dB TXRX_SEL Logic = LOW , ANT_SEL Logic = HIGH
dB Measured at Pin #21, TXRX_SEL = LOW,
ANT_SEL = HIGH
dB Measured at Pin #19, TXRX_SEL = LOW,
ANT_SEL = LOW
dB Measured at Pin #16, TXRX_SEL = HIGH,
ANT1/ANT2 State
dB Measured at Pin #21, TXRX_SEL = HIGH,
ANT_SEL = HIGH
dB Measured at Pin #19, TXRX_SEL = HIGH,
ANT_SEL = LOW
V
Digital Supply Voltage. Always on
mA In Any Module Rx Mode
mA In Any Module Tx Mode
A All 5 Logic Inputs = LOW
V
All Five (5) Logic I/O's. VDig – 0.2V
V
All Five (5) Logic I/O's
A All Five (5) Logic I/O's
A All Five (5) Logic I/O's (sink Current)
Logic Table
Operating Mode
CTL1 CTL2 CTL3 CTL4 CTL5
Tx 900 - ANT1
High
Low
Low
High
Low
Tx 900 - ANT2
Low
Low
Low
High
Low
Rx 900 ANT1 Hi gain
High
High
High
High
Low
Rx 900 ANT2 Hi Gain
Low
High
High
High
Low
Rx 900 ANT1 LNA Bypass Mode High
High
Low
High
Low
Rx 900 ANT2 LNA Bypass Mode
Low
High
Low
High
Low
TX/RX 450 ANT1
High
High
Low
High
High
TX/RX 450 ANT2
Low
High
Low
High
High
Power Down
Low
Low
Low
Low
Low
All logic states other than defined in the above table are “undefined” and not recommended,
Operation in the undefined states shall not result in permanent damage.
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