Datasheet

MAX2306/MAX2308/MAX2309
CDMA IF VGAs and I/Q Demodulators
with VCO and Synthesizer
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +3.6V, MODE = DIVSEL = SHDN = STBY = BUFEN = high, differential output load = 10kΩ, T
A
= -40°C to +85°C,
registers set to default power-up settings. Typical values are at V
CC
= +2.75V and T
A
= +25°C, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
CC
to GND...........................................................-0.3V to +6.0V
SHDN to GND.............................................-0.3V to (V
CC
+ 0.3V)
STBY, BUFEN, MODE, EN, DATA,
CLK, DIVSEL ...........................................-0.3V to (V
CC
+ 0.3V)
VGC to GND...............-0.3V, the lesser of +4.2V or (V
CC
+ 0.3V)
AC Signals TANKH ±, TANKL ±,
REF, FM ±, CDMA ± .................................................1.0V peak
Digital Input Current SHDN, MODE, DIVSEL,
BUFEN, DATA, CLK, EN, STBY .....................................±10mA
Continuous Power Dissipation (T
A
= +70°C)
28-Pin QFN (derate 28.5mW/°C above T
A
= +70°C)...........2W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
T
A
= +25°C
25.9 37.5
CDMA mode
T
A
= -40°C to +85°C 41.5
T
A
= +25°C
25.4 36.7
FM_IQ mode
T
A
= -40°C to +85°C 40.6
T
A
= +25°C
24.7 35.7
FM_I mode
T
A
= -40°C to +85°C 39.5
T
A
= +25°C
12.3 18.8
STANDBY (VCO_H)
T
A
= -40°C to +85°C 20.7
T
A
= +25°C
11.4 18.4
STANDBY (VCO_L)
T
A
= -40°C to +85°C 20.3
Supply Current
(Note 1)
I
CC
Addition for LO out (BUFEN = low) 3.5
mA
Shutdown Current I
CC
SHDN = low 1.5 10 µA
Register Shutdown Current I
CC
4 5.8 mA
Logic High 2.0 V
Logic Low 0.5 V
Logic High Input Current I
IH
2µA
Logic Low Input Current I
IL
2µA
VGC Control Input Current 0.5V < V
VGC
< 2.3V -5 5 µA
VGC Control Input Current
During Shutdown
SHDN = low 1 µA
Lock Indicator High (locked) 47kΩ load 2.0 V
Lock Indicator Low (unlocked) 47kΩ load 0.5 V
DC Offset Voltage I+ to I- and Q+ to Q-, PLL locked -20
±1.5 +20
mV
Common-Mode Output Voltage V
CC
= +2.75V
V
CC
- 1.4
V