103062B • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • November 6, 2006
1
DATA SHEET • SKY77149
PA MODULE FOR CDMA / PCS (1850–1910 MHz)
Electrical Specifications
The following tables list the electrical characteristics of the
SKY77149 Power Amplifier.
Table 1
lists the absolute maximum
ratings, while
Table 2
shows the recommended operating
conditions to achieve the performance characteristics listed in
Table 4. Table 3
presents a truth table for the power settings.
Table 1. Absolute Maximum Ratings
1
Parameter
RF Input Power
Supply Voltage
Reference Voltage
Control Voltage
Case Temperature
2
1
2
Symbol
P
IN
V
CC
V
REF
V
CONT
Operating T
C
Storage
T
STG
Minimum
—
—
—
—
–30
–55
Nominal
0
3.4
2.85
1.25
25
—
Maximum
5
6.0
3.0
3.0
+110
+125
Unit
dBm
Volts
Volts
Volts
°C
No damage assuming only one parameter is set at limit at a time with all other parameters set at nominal value.
Case Operating Temperature refers to the temperature of the GROUND PAD at the underside of the package.
Table 2. Recommended Operating Conditions
Parameter
Power Output
Operating Frequency
Supply Voltage
Reference Voltage
Control voltage
Case Operating Temperature
Symbol
P
O
F
O
VCC
V
REF
V
CONT
T
C
Minimum
—
1850.0
3.2
2.75
1.0
–30
Nominal
—
1880.0
3.4
2.85
1.25
+25
Maximum
28.0
1910.0
4.2
2.95
2.0
+85
Unit
dBm
MHz
Volts
Volts
Volts
°C
Table 3. Power Range Truth Table
1
Power Setting
High Power
Low Power
Shut Down
1
V
REF
2.85 V
2.85 V
0.0 V
V
CONT
2.0 V
< 1.3 V
0.0 V
Output Power
28 dBm
≤
0 dBm
—
In the output power range between –10 dBm and +28 dBm, VCONT can be continuously adjusted to minimize current consumption while
November 6, 2006 • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • 103062B
PA MODULE FOR CDMA / PCS (1850–1910 MHz)
DATA SHEET • SKY77149
Table 4. Electrical Specifications for CDMA Nominal Operating Conditions
1
Characteristics
Symbol
G
LOW
Gain conditions
G
MID
G
HIGH
Gain Sensitivity
Power Added Efficiency for Optimal VCONT Setting (VCC = 3.4 V)
G
SEN
PAE
LOW
PAE
HIGH
Total Supply current for Optimal VCONT Setting
I
CC_LOW
I
CC_HIGH
Quiescent current
Reference Current
Control Current
Total Supply current in Power-down Mode
I
Q_LOW
I
Q_HIGH
I
REF
I
CTRL
I
PD
ACP1
_LOW
1.25 MHz offset
Adjacent Channel Power for Optimal VCONT Setting
2,3
Condition
V
CONT
≤
1.3 V
P
O
< 0 dBm
1.3 V
≤
V
CONT
< 2.0 V
P
O
= 16 dBm
V
CONT
= 2.0 V
P
O
= 28 dBm
All conditions fixed, except V
CONT
P
O
= 0 dBm
P
O
= 28 dBm
P
O
= 0 dBm
P
O
= 28 dBm
V
CONT
= 1.25 V
V
CONT
= 2.0 V
Minimum
19
23
26
5
0.5
37.0
Typical
22
26
28
8
0.7
40.0
40
450
Maximum
23
28
30
15
Unit
dB
dB/Volt
%
60
500
47
130
1.5
250
5.0
–50.0
–48.0
mA
15
65
35
95
0.5
mA
mA
µA
µA
V
CONT
= 2.0 V
V
CC
= 3.4 V
V
REF
= 0 V
V
CONT
≤
1.3 V
P
O
≤
0 dBm
100
2.0
–63.0
–50.0
–80.0
–55.0
–56.0
–45.0
ACP1
_HIGH
P
O
≤
28 dBm
ACP2
_LOW
1.98 MHz offset
V
CONT
≤
1.3 V
P
O
≤
0 dBm
dBc
–60.0
–53.5
–35.0
–40.0
dBm/Hz
dB
2.5:1
–70.0
—
dBc
VSWR
—
µs
dBc
ACP2
_HIGH
P
O
≤
28 dBm
Harmonic Suppression
Noise Power in RX Band 1930-1990 MHz
Noise Figure
Input Voltage Standing Wave Ratio (VSWR)
Stability (Spurious output)
Ruggedness
4
DC
RF
Turn Off Time
5
1
2
3
Second
Third
F
O
2
F
O
3
RxBN
NF
VSWR
S
Ru
T
ON
DC
T
ON
RF
T
OFF
DC
T
OFF
RF
P
O
≤
28 dBm
P
O
≤
28 dBm
—
—
5:1 VSWR
All phases
P
O
≤
28 dBm
P
O
=
29 dBm
10:1
5:1
–138.0
4.0
—
—
—
—
40
5
40
5
Turn On Time
5
DC
RF
µs
Per Table 2 over dynamic range up to 28 dBm output power, unless otherwise specified
ACP is specified per IS95 as the ratio of the total in-band power (1.23 MHz BW) to adjacent power in a 30 kHz BW.
For CDMA2000 test configured as [PCH @ –3.75 dB, DCCH–9600 bps @ 0 dB; SCHO–9600 bps @ 0 dB] and other test configurations that yield a peak-to-average up to 4.5 dB for CCDF = 1%,
up to 1. dB power back off from the maximum listed for IS95 may be required to meet specified maximum ACP performance under worst-case conditions.
All phases, time = 10 seconds; V
CC
= 4.2 V; Freq. = 1850 MHz, 1880 MHz, 1910 MHz; T
CASE
= –30 °C, +25 °C, +85 °C; P
O
set using 50
Ω
load, P
IN
held constant during mismatch.
TONDC is time required to reach stable quiescent bias (±10%) after VREF is switched high.
TOFFDC is time required for battery to decrease to < 100 µA after VREF is switched low.
After ICQ is stable, The TONRF is time to reach final output power (±1 dB) once RF input is applied.
TOFFRF is time required for PO to drop 30 dB once RF input is removed.
103062B • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • November 6, 2006
3
DATA SHEET • SKY77149
PA MODULE FOR CDMA / PCS (1850–1910 MHz)
Characterization Data
The following graphs illustrate the characteristics of a typical
SKY77149 power amplifier designed for operation in the cellular
frequency band (824–849 MHz). This amplifier was selected by
characterizing a group of devices and then selecting a part with
average electrical performance for both nominal and the full
range of recommended operating conditions, including worst case
limits.
Figure 2
through 8 illustrate the digital signal
characteristics of the SKY77149. Shown are power sweep
characteristics for key performance parameters, over temperature
and frequency, up to 28.5 dBm output power. The data was taken
up to and including 8 dBm output power with the bias mode
control pad setting of VCONT = 1.25 volts and from 10 dBm to
16 dBm output power with the bias mode control pad setting of
VCONT = 1.55 V. Beyond 16 dBm output power, VCONT was set
November 6, 2006 • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • 103062B
103062B • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • November 6, 2006
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