M
Digitally Controlled, Variable-Gain, Differential
ADC Driver/Amplifier
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
All Pins to GND. .....................................-0.3V to +(V
CC
+ 0.25V)
Input Signal (RF_IN)............................
……………………
.20dBm
Output Power (RF_OUT)...................................................24dBm
Continuous Power Dissipation (T
A
= +70
°
C)
20-Pin TSSOP (derate 21.7mW/
°
C above +70
°
C) ...........2.1W
DC ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1; V
CC
= +4.75V to +5.25V, GND = 0V. No input signals applied, and input and output ports are terminated with
50
. R1 = 1.13k
, T
A
= -40
°
C to +85
°
C. Typical values are at V
CC
= +5V and T
A
= +25
°
C, unless otherwise noted.) (Notes 1, 2)
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.
Operating Temperature Range ...........................-40
°
C to +85
°
C
Junction Temperature......................................................+150
°
C
Storage Temperature Range.............................-65
°
C to +165
°
C
Lead Temperature (soldering, 10s).................................+300
°
C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY
Supply Voltage
Supply Current
I
SET
Current
CONTROL INPUTS
Control Bits
Input Logic High
Input Logic Low
Input Leakage Current
V
CC
I
CC
I
SET
4.75
5.0
240
1.1
5.25
290
V
mA
mA
Parallel
5
Bits
V
V
μA
2
0.6
+1.2
-1.2
PARAMETER
SYMBOL
f
R
G
CONDITIONS
MIN
30
TYP
MAX
300
UNITS
MHz
dB
dB
D eg ees
dB
dB
dBm
Frequency Range
Gain
Amplitude Unbalance
Phase Unbalance
Minimum Reverse Isolation
Noise Figure
Output 1dB Compression Point
19.9
0.06
0.7
29
5.8
25.7
(Note 3)
(Note 3)
NF
P
1dB
2nd-Order Output Intercept Point
OIP2
f
1
+ f
2
, f
1
= 70MHz, f
2
= 71MHz, 5dBm/tone
at RF_OUT
75
dBm
3rd-Order Output Intercept Point
2nd Harmonic
3rd Harmonic
RF Gain-Control Range
Gain-Control Resolution
Attenuation Absolute Accuracy
OIP3
2f
IN
3f
IN
All gain conditions, 5dBm/tone at RF_OUT
40
-76
-69
23
1
±0.2
dBm
dBc
dBc
dB
dB
dB
Compared to the ideal expected attenuation
Attenuation Relative Accuracy
Between adjacent states
+0.05/
-0.2
dB
Gain Drift Over Temperature
T
A
= -40
°
C to +85
°
C
±0.3
dB
AC ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1; V
CC
= +4.75V to +5.25V, GND = 0V, max gain (B0 = B1 = B2 = B3 = B4 = 0), R
1
= 1.13k
, P
OUT
= 5dBm,
f
IN
= 70MHz, 50
system impedance. Typical values are at V
CC
= +5V and T
A
= +25
°
C, unless otherwise noted.) (Notes 1, 2)