PRELIMINARY DATA SHEET
SKY77326: iPAC™ PAM for Dual-Band GSM / GPRS
Applications
•
Dual-band cellular handsets
encompassing
-
Class 4 GSM900
-
Class 1 DCS1800
-
Class 12 GPRS multi-slot operation
•
High Power Output
-
GSM900 35.0 dBm
-
DCS1800 32.5 dBm
The SKY77326 Power Amplifier Module (PAM) is designed in a low profile (1.2 mm), compact
form factor for dual-band cellular handsets comprising GSM900 and DCS1800 operation. The
PAM also supports Class 12 General Packet Radio Service (GPRS) multi-slot operation.
The module consists of separate GSM900 PA and DCS1800 PA blocks, impedance-matching
circuitry for 50
Ω
input and output impedances, and a Power Amplifier Control (PAC) block
with an internal current-sense resistor. The custom CMOS integrated circuit provides the
internal PAC function and interface circuitry. Fabricated onto a single Gallium Arsenide (GaAs)
die, one Heterojunction Bipolar Transistor (HBT) PA block supports the GSM900 bands and
the other supports the DCS1800 band. Both PA blocks share common power supply pins to
distribute current. The GaAs die, the Silicon (Si) die, and the passive components are
mounted on a multi-layer laminate substrate. The assembly is encapsulated with plastic
overmold.
RF input and output ports of the SKY77326 are internally matched to a 50
Ω
load to reduce
the number of external components for a dual-band design. Extremely low leakage current
(2.5
µA,
typical) of the dual PA module maximizes handset standby time. The SKY77326 also
contains band-select switching circuitry to select GSM (logic 0) or DCS (logic 1) as
determined from the Band Select (BS) signal. In
Figure 1,
below, the BS pin selects the PA
output (DCS OUT or GSM900 OUT) and the Analog Power Control (VAPC) controls the level of
output power.
VBATT and VSENSE pins connect to an internal current-sense resistor and interface to an
integrated power amplifier control (iPAC™) function, which is insensitive to variations in
temperature, power supply, and process. The PAC ENABLE input allows initial turn-on of PAC
circuitry to minimize battery drain.
Features
•
Low input power range
- 0 to 6 dBm
•
High efficiency:
-
GSM900 50%
-
DCS1800 52%
•
Internal I
CC
sense resistor for PAC
•
Closed loop iPAC or open loop
operation with external PAC circuit
•
Input/Output matching 50
Ω
internal
(with DC blocking)
•
22-pin package
-
Small outline 6 mm x 8 mm
-
Low profile 1.2 mm maximum
•
Low APC current
-
20
µA
•
Gold plated, lead-free contacts
Figure 1. Functional Block Diagram
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
103188P3
Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice • May 17, 2004
1
PRELIMINARY DATA SHEET • SKY77326
iPAC™ PAM FOR DUAL-BAND GSM / GPRS
Electrical Specifications
The following tables list the electrical characteristics of the
SKY77326 Power Amplifier Module.
Table 1
lists the absolute
maximum ratings and
Table 2
shows the recommended operating
conditions.
Table 3
lists the electrical characteristics of the
SKY77326 for modes GSM900 and DCS1800.
Figure 2
is a
diagram of a typical SKY77326 application.
The SKY77326 is a static-sensitive electronic device and should
not be stored nor operated near strong electrostatic fields.
Detailed information on device dimensions, pin descriptions,
packaging and handling can be found in later sections of this data
sheet.
Table 1. Absolute Maximum Ratings
Parameter
Input Power (P
IN
)
Supply Voltage (V
CC
), Standby, V
APC
≤
0.3 V,
PAC ENABLE
≤
0.2 V
Control Voltage (V
APC
)
Storage Temperature
Minimum
—
—
–0.5
–55
Maximum
15
7
V
CC_MAX
– 0.2
(See
Table 3)
+100
Unit
dBm
V
V
°C
Table 2. Recommended Operating Conditions
Parameter
Supply Voltage (V
CC
)
Supply Current (I
CC
)
Operating Case Temperature (T
CASE
) – Package Bottom Surface
1-Slot (12.5% duty cycle)
2-Slot (25.0% duty cycle)
3-Slot (37.5% duty cycle)
4-Slot (50.0% duty cycle)
Minimum
2.9
0
–20
–20
–20
–20
Typical
3.5
—
—
—
—
—
Maximum
4.8
(1)
2.5
(1)
+100
+100
+85
+85
Unit
V
A
°C
(1) In open loop operation: For charging conditions with V
CC
> 4.8 V, derate I
CC
linearly down to 0.5 A, maximum, at V
CC
= 5.5 V.
Table 3. SKY77326 Electrical Specifications
(1)
(1 of 5)
Parameter
Symbol
Test Condition
General
Supply voltage
Power control impedance
PAC ENABLE control voltage
PAC ENABLE current
Band Select control voltage
Band Select current
Low
High
Low
High
V
CC
Z
APC
V
PE
V
PE
I
PE
V
BS
V
BS
I
BS
V
BS
≤
3.0 V
V
CC
≤
4.5 V
V
APC
≤
0.3 V
PAC ENABLE
≤
0.2 V
T
CASE
= +25 °C
P
IN
≤
–60 dBm
—
—
—
V
PE
≤
3.0 V
—
—
—
—
—
—
2.9
85
–0.1
2.0
—
–0.1
2.0
—
3.5
100
—
—
—
—
—
—
4.8
115
0.7
V
CC
30
0.5
V
CC
30
µA
µA
V
V
kΩ
V
Minimum
Typical
Maximum
Units
Standby Mode Leakage current
I
Q
—
2.5
10
µA
Closed Loop V
APC
Input Filter Bandwidth
Closed Loop V
APC
Threshold
Open Loop
(4)
V
APC
Enable Threshold
V
APC_FBW
V
APC _THCL
V
APC_THOL
95
400
200
135
420
—
170
460
800
kHz
mV
mV
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
May 17, 2004 • Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice • 103188P3
iPAC™ PAM FOR DUAL-BAND GSM / GPRS
PRELIMINARY DATA SHEET • SKY77326
Table 3. SKY77326 Electrical Specifications
(1)
(2 of 5)
Parameter
Symbol
Test Condition
Minimum
Typical
Maximum
Units
GSM900 Mode (f = 880 to 915 MHz and P
IN
= 0 to 6 dBm)
Frequency range
Input power
Analog power control voltage
f
P
IN
V
APC
—
—
—
V
CC
= 3.5 V
P
OUT
= 35.0 dBm
V
APC
≈
1.7 V
PAC ENABLE > 2.0 V
pulse width 577 µs
duty cycle 1:8
T
CASE
= +25
°C
BW = 3 MHz
6.5 dBm
≤
P
OUT
≤
35.0 dBm
V
CC
= 3.5 V
V
APC
≈
1.7 V
T
CASE
= +25
°C
V
CC
= 2.9 V
PAC ENABLE
>
2.0 V
T
CASE
= –20
°C
to +100
°C
(See
Table 2
for multislot.)
P
IN
= 0 dBm
V
CC
= 4.5 V
PAC ENABLE
>
2.0 V
T
CASE
= –20
°C
to +100
°C
(See
Table 2for
multislot.)
P
IN
= 0 dBm
P
OUT
= 6.5 to 35.0 dBm
controlled by V
APC
P
IN
= 6 dBm
V
APC
= 0.3 V
PAC ENABLE
≤
0.2 V
P
IN
= 6 dBm
V
APC
≤
0.35 V
PAC ENABLE
≥
2.0 V
Time from P
OUT
= –10 dBm to within
0.5 dBm of P
OUT
= +6.5 dBm
Open Loop
(4)
Switching time
τ
RISE
Time from P
OUT
= –10 dBm to within
0.5 dBm of P
OUT
= +20.0 dBm
Time from P
OUT
= –10 dBm to within
0.5 dBm of P
OUT
= +35.0 dBm
880
0
0.4
—
—
—
915
6
2.1
MHz
dBm
V
Power Added Efficiency
PAE
45
50
—
%
2nd to 13th harmonics
2f
O
to 13f
O
—
–30
–10
dBm
P
OUT
35.0
35.3
—
P
OUT MAX LOW VOLTAGE
Output power
32.5
33.0
—
dBm
P
OUT MAX HIGH VOLTAGE
32.5
36.3
—
Input VSWR
Γ
IN
—
1.5:1
2.2:1
—
P
OUT STANDBY
Forward isolation
P
OUT ENABLED
—
–40
–35
dBm
—
–30
–16
—
—
—
1.2
1.0
1.4
2.0
1.3
1.7
µs
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
103188P3
Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice • May 17, 2004
3
PRELIMINARY DATA SHEET • SKY77326
iPAC™ PAM FOR DUAL-BAND GSM / GPRS
Table 3. SKY77326 Electrical Specifications
(1)
(3 of 5)
Parameter
Symbol
Test Condition
All combinations of the following
parameters:
V
APC
= controlled
(2)
P
IN
= min. to max.
V
CC
= 2.9 V to 4.8 V
Load VSWR = 8:1, all phase angles
All combinations of the following
parameters:
V
APC
= controlled
(2)
P
IN
= min. to max.
V
CC
= 2.9 V to 4.8 V
Load VSWR = 10:1, all phase angles
At f
O
+ 20 MHz
RBW = 100 kHz
V
CC
= 3.5 V
6.5 dBm
≤
P
OUT
≤
35.0 dBm
T
CASE
= +25 °C
At f
O
+ 10 MHz
RBW = 100 kHz
V
CC
= 3.5 V
6.5 dBm
≤
P
OUT
≤
35.0 dBm
T
CASE
= +25 °C
At 1805 to 1880 MHz
RBW = 100 kHz
V
CC
= 3.5 V
6.5 dBm
≤
P
OUT
≤
35.0 dBm
T
CASE
= +25 °C
Coupling of Fundamental, 2nd, and 3rd
harmonics from the GSM band into the DCS
band
Power control dynamic range
Power control variation
(Control level 5–15) 3.2
≤
V
CC
≤
4.5
Power control variation
(Control level 16–19)
Power control slope
Closed loop bandwidth
Loop phase margin
f
O
2f
O
3f
O
P
CDR
P
CV
—
P
OUT
+14.5 to +35.0 dBm, +25 °C
P
OUT
+14.5 to +35.0 dBm
P
CV
P
CS
B
CL
P
M
P
OUT
+6.5 to +12.5 dBm, +25 °C
P
OUT
+6.5 to +12.5 dBm
6.5 to 35.0 dBm
V
APC
= 1.0 V
V
APC
= 1.0 V
Measured at the DCS output,
–15 dBm
≤
P
OUT
≤
35.0 dBm
Minimum
Typical
Maximum
Units
Spurious
Spur
No parasitic oscillation > –36 dBm
Load mismatch
Load
No module damage or permanent degradation
—
–84
–82
Noise power
P
NOISE
—
–81
–76
dBm
—
–106
–84
—
—
—
30
–0.8
–1.4
–1.2
–2.0
2
—
50
–12
–30
–30
50
—
—
—
—
—
700
65
0
–20
–20
—
+0.8
+1.4
+1.2
+2.0
300
—
—
dB/V
kHz
deg.
dB
dB
dB
dBm
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4
May 17, 2004 • Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice • 103188P3
iPAC™ PAM FOR DUAL-BAND GSM / GPRS
PRELIMINARY DATA SHEET • SKY77326
Table 3. SKY77326 Electrical Specifications
(1)
(4 of 5)
Parameter
Symbol
Test Condition
Minimum
Typical
Maximum
Units
DCS1800 Mode (f = 1710 to 1785 MHz and P
IN
= 0 to 6 dBm)
Frequency range
Input power
Analog power control voltage
f
P
IN
V
APC
—
—
—
V
CC
= 3.5 V
P
OUT
= 32.5 dBm
V
APC
≈
1.6 V
PAC ENABLE > 2.0 V
pulse width 577 µs
duty cycle 1:8
T
CASE
= +25
°C
BW = 3 MHz
1.5 dBm
≤
P
OUT
≤
32.5 dBm
V
CC
= 3.5 V
V
APC
≈
1.6 V
T
CASE
= +25
°C
V
CC
= 2.9 V
PAC ENABLE
>
2.0 V
T
CASE
= –20
°C
to +100
°C
(See
Table 2
for multislot.)
P
IN
= 0 dBm
V
CC
= 4.5 V
PAC ENABLE
>
2.0 V
T
CASE
= –20
°C
to +100
°C
(See
Table 2
for multislot.)
P
IN
= 0 dBm
P
OUT
= 1.5 to 32.5 dBm
controlled by V
APC
P
IN
= 6 dBm
V
APC
= 0.3 V
PAC ENABLE
≤
0.2 V
P
IN
= 6 dBm
V
APC
≤
0.35 V
PAC ENABLE
≥
2.0 V
Time from P
OUT
= –10 dBm to within
0.5 dBm of P
OUT
= +1.5 dBm
Open Loop
(4)
Switching time
τ
RISE
Time from P
OUT
= –10 dBm to within
0.5 dBm of P
OUT
= +20.0 dBm
Time from P
OUT
= –10 dBm to within
0.5 dBm of P
OUT
= +32.5 dBm
1710
0
0.4
—
—
—
1785
6
2.1
MHz
dBm
V
Power Added Efficiency
PAE
47
52
—
%
2nd to 7th harmonics
2f
O
to 7f
O
—
–18
–5
dBm
P
OUT
32.5
33.2
—
P
OUT MAX LOW VOLTAGE
Output power
29.5
31.0
—
dBm
P
OUT MAX HIGH VOLTAGE
29.5
34.3
—
Input VSWR
Γ
IN
—
1.5:1
2.0:1
—
P
OUT STANDBY
Forward isolation
P
OUT ENABLED
—
–40
–35
dBm
—
–40
–20
—
—
—
0.5
0.8
1.2
3.0
1.1
1.5
µs
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
103188P3
Skyworks Proprietary and Confidential information. • Products and product information are subject to change without notice • May 17, 2004
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
