Complete Dual-Band
Quadrature Transmitter
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2369 Evaluation Kit: 50& system, operating modes as defined in Table 6, input voltage at I and Q = 200mV
RMS
differential,
common mode = V
CC
/2, 300kHz quadrature CW tones, IF synthesizer locked with passive lead-lag second-order loop filter, REF =
200mVp-p at 19.44MHz, V
CC
= SHDN = CS = TXGATE = +2.75V, V
BAT
= +2.75V, IF output load = 400&, LOH, LOL input power =
-7dBm, f
LOL
= 1017.26MHz, f
LOH
= 2061.26MHz, IFIN = 125mV
RMS
at 181.26MHz, IS-136 TDMA modulation, f
RFH
= 1880MHz, f
RFL
= 836MHz, T
A
= +25癈, unless otherwise noted.)
Note 1: See Table 6 for register settings.
Note 2: ACPR is met over the specified V
CM
range.
Note 3: V
CM
must be supplied by the I/Q baseband source with ?礎 capability.
Note 4: Guaranteed by design and characterization.
Note 5: When enabled, turbolock is active during acquisition and injects boost current in addition to the normal charge-pump current.
Note 6: Charge Pump Compliance range is 0.5V to V
CC
- 0.5V.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IF_PLL
Reference Frequency
5
30
MHz
Frequency Reference Signal
Level
0.1
0.6
Vp-p
IF Main Divide Ratio
256
16384
IF Reference Signal Ratio
2
2048
VCO Operating Range
240470
MHz
IF LO Output Power
BUF_EN = 1
-6
dBm
ICP = 00
148
200
260
ICP = 01
185
260
345
ICP = 10
295
400
515
Charge-Pump Source/Sink
Current
ICP = 11
385
530
700
礎
Turbolock Boost Current
(Note 5)
385
530
700
礎
Charge-Pump Source/Sink
Matching
Locked, all values of ICP, over specified compliance
range (Note 6)
5
%
Charge-Pump High-Z Leakage
Over specified compliance range (Note 6)
10
nA
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