
MAX2870
23.5MHz to 6000MHz Fractional/
Integer-N Synthesizer/VCO
Typical Operating Characteristics Testing Conditions Table
TOC TITLE
f REF
(MHz)
f PFD
(MHz)
REGISTER
SETTINGS
(hex)
TOC
TITLE
MAX2870 EV KIT COMPONENT VALUES
C13 R1 + R2 C14 R0 C12
(F) ( I ) (F) ( I ) (F)
COMMENTS
2679.4MHz
FRACTIONAL-N
PHASE NOISE vs.
FREQUENCY
(LOW-NOISE MODE)
2679.4MHz
FRACTIONAL-N
PHASE NOISE vs.
FREQUENCY
(LOW-SPUR MODE)
50
50
25
25
00358160,
203207D1,
01005E42,
B20000A3,
6010003C,
00400005
00358160,
203207D1,
41005E42,
B20000A3,
6010003C,
00400005
40k
40k
0.1 F
0.1 F
120
120
0.012 F
0.012 F
250
250
820p
820p
SUPPLY CURRENT
vs. OUTPUT POWER
SETTING
(ONE CHANNEL
ACTIVE, 3GHz)
SUPPLY CURRENT
vs. FREQUENCY
(ONE CHANNEL
ACTIVE, MAXIMUM
OUTPUT POWER)
50
50
25
25
003C0000,
20000321,
01005E42,
00000013,
610F423C,
01400005,
003C0000,
20000321,
01005E42,
00000013,
610F423C,
01400005
APWR swept
from 00 to 11
N and F values
changed for
each frequency
003C0000,
SUPPLY CURRENT
vs. OUTPUT POWER
SETTING (TWO
CHANNELS ACTIVE)
50
25
20000321,
01005E42,
00000013,
610F43FC,
APWR and
BPWR swept
from 00 to 11
01400005
SUPPLY CURRENT
vs. FREQUENCY
(TWO CHANNELS
ACTIVE MAXIMUM
OUTPUT POWER)
50
25
003C0000,
20000321,
01005E42,
00000013,
610F43FC,
01400005
N and F values
swept for each
frequency
00250120,
20320141,
PLL LOCK vs. TIME
40
40
00004042,
000000A3,
40k
0.1 F
120
0.012 F
250
820p
CDM changed
from 00 to 01
0184023C,
01400005
Maxim Integrated
9