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RF6549

DS121212

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.

Parameter

Specification

Unit

Condition

Min.

Typ.

Max.

Antenna Switch Section

Insertion Loss TX-ANT1

1

1.2

dB

TXRX_SEL Logic = LOW , ANT_SEL Logic = HIGH

Insertion Loss TX-ANT2

1

1.2

dB

TXRX_SEL Logic = LOW , ANT_SEL Logic = LOW

Insertion Loss ANT1 - ASWRX

1

1.2

dB

TXRX_SEL Logic = HIGH , ANT_SEL Logic = HIGH

Insertion Loss ANT2 - ASWRX

1

1.2

dB

TXRX_SEL Logic = HIGH , ANT_SEL Logic = LOW

Insertion Loss RFIO 450

1

1.2

dB

RFIO 450 pin 4 to Ant1/2 at 450MHz

Insertion Loss RFIO 450

1.5

1.8

dB

RFIO 450 pin 4 to Ant1/2 at 915MHz

Isolation

20

dB

Any used port to any unused port

Tx Return Loss

10

15

dB

TXRX_SEL Logic = LOW , ANT_SEL Logic = HIGH

ANT1 Port Return Loss (Tx Mode)

8

12

dB

Measured at Pin #21, TXRX_SEL = LOW,

ANT_SEL = HIGH

ANT2 Port Return Loss (Tx Mode)

8

12

dB

Measured at Pin #19, TXRX_SEL = LOW,

ANT_SEL = LOW

ASWRX Port Return Loss

10

15

dB

Measured at Pin #16, TXRX_SEL = HIGH,

ANT1/ANT2 State

ANT1 Port Return Loss (Rx Mode)

10

15

dB

Measured at Pin #21, TXRX_SEL = HIGH,

ANT_SEL = HIGH

ANT2 Port Return Loss (Rx Mode)

10

15

dB

Measured at Pin #19, TXRX_SEL = HIGH,

ANT_SEL = LOW

Logic Circuit and Power Supply

Section

VCC_DIG

2.7

4.2

4.4

V

Digital Supply Voltage. Always on

VCC_DIG Supply Current -Rx Mode

0.75

3

mA

In Any Module Rx Mode

VCC_DIG Supply Current -Tx Mode

3

6

mA

In Any Module Tx Mode

VCC_DIG Power Down Current

5

10

A

All 5 Logic Inputs = LOW

Select Control Logic = HIGH

V

All Five (5) Logic I/O's. VDig – 0.2V

Select Control Logic = LOW

0.0

0.3

V

All Five (5) Logic I/O's

Select Control Logic High Current

5

10

A

All Five (5) Logic I/O's

Select Control Logic Low Current

0.1

2

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.