I
CC
M
CDMA IF VGAs and I/Q Demodulators
with VCO and Synthesizer
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND..............................................................-0.3V, +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
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, MODE = DIVSEL =
SHDN
=
STBY
=
BUFEN
= high, differential output load = 10k
, 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.
Digital Input Current
SHDN
, MODE, DIVSEL,
BUFEN
, DATA, CLK,
EN
,
STBY
.....................................±10mA
Continuous Power Dissipation (T
A
= +70°C)
28-pin QSOP (derate 10mW/°C above T
A
= +70°C) ....800mW
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
V
CC
= 2.75V
CDMA mode
I+ to I- and Q+ to Q-, PLL locked
50k
load
50k
load
SHDN
= low
0.5V < V
VGC
< 2.3V
Addition for LO out (
BUFEN
= low)
SHDN
= low
CONDITIONS
V
V
CC
- 1.4
Common-Mode Output Voltage
mV
-20
±1.5
+20
DC Offset Voltage
V
0.5
Lock Indicator Low (unlocked)
V
2.0
Lock Indicator High (locked)
μA
1
VGC Control Input Current
During Shutdown
μA
-5
5
VGC Control Input Current
μA
2
I
IL
Logic Low Input Current
41.5
36.7
25.9
37.5
μA
2
I
IH
Logic High Input Current
V
0.5
Logic Low
V
2.0
Logic High
mA
3
5.8
I
CC
Register Shutdown Current
3.5
1.5
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +85°C
I
CC
Supply Current (Note 1)
mA
FM IQ mode
40.6
35.7
25.4
FM I mode
39.5
18.8
24.7
STANDBY (VCO_H)
20.7
18.4
12.3
STANDBY (VCO_L)
20.3
11.5
μA
10
I
CC
Shutdown Current