RF2489
Evaluation Board Current Measurement
BAND
SEL
IF
SEL
LNA
GAIN
MIX
GAIN
IP
SET
TX BUFF
ENABLE SELECT
/2
IDC
(mA)
ENABLE
CDMA Cellular
JCDMA
LNA On, Mixer Preamp On,
TX Buffer Off, /2 Off
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
27.5
23.0
23.0
18.5
LNA On, Mixer Preamp Off,
TX Buffer Off, /2 Off
LNA Bypassed, Mixer Preamp On,
TX Buffer Off, /2 Off
LNA Bypassed, Mixer Preamp Off,
TX Buffer Off, /2 Off
FM
LNA On, Mixer Preamp On,
TX Buffer Off, /2 Off
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
27.5
23.0
23.0
18.5
LNA On, Mixer Preamp Off,
TX Buffer Off, /2 Off
LNA Bypassed, Mixer Preamp On,
TX Buffer Off, /2 Off
LNA Bypassed, Mixer Preamp Off,
TX Buffer Off, /2 Off
CDMA PCS - High IIP3 LNA Mode
LNA On, Mixer Preamp On,
TX Buffer Off, /2 Off
1
1
1
1
0
0
0
0
1
1
1
1
1
1
0
0
1
0
1
0
1
1
1
1
0
0
0
0
0
0
0
0
29.5
25.0
23.0
18.5
LNA Off, Mixer Preamp Off,
TX Buffer Off, /2 Off
LNA Bypassed, Mixer Preamp On,
TX Buffer Off, /2 Off
LNA Bypassed, Mixer Preamp Off,
TX Buffer Off, /2 Off
GPS
LNA On, Mixer On
1
0
1
1
1
1
0
0
26.0
NOTES:
All IDC current numbers include bias circuitry current of 3.5mA.
TX Buffer On: Add 2mA to total current.
/2 Select On: Add 2mA to total current.
“X” denotes setting does not impact current.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
6 of 30
Rev A21 DS070308
RFMD [ RF MICRO DEVICES ]
