|
|
PDF SKY77521 Data sheet ( Hoja de datos )
| Número de pieza | SKY77521 | |
| Descripción | TX-RX FEM | |
| Fabricantes | Skyworks Solutions | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SKY77521 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
ADVANCE DATA SHEET
SKY77521 TX-RX FEM for Quad-Band GSM / GPRS / EDGE –
Triple-Band WCDMA Antenna Switch Support
Applications
• Quad-band cellular handsets
encompassing
- Class 4 GSM850/900
- Class 1 DCS1800 PCS1900
- Class 12 GPRS multi-slot
operation
- EDGE polar modulation
- Triple band WCDMA antenna
switch support
Features
• Small outline: 7 mm x 6 mm
• Very low profile: 1 mm max.
• 30-pad package
• Low input power range
- 0 to 6 dBm
• High efficiency
- GSM850 40%
- GSM900 40%
- DCS 34%
- PCS 34%
• TX-VCO-to-antenna and antenna-
to-RX-SAW filter RF interface
• TX harmonics below -35 dBm
• Wideband envelop control path
• Input/Output matching 50 Ω
internal
• Low APC current: 20 μA
• High impedance control inputs
15 μA, typical
Skyworks offers lead
(Pb)-free, RoHS
(European Parliament
for the Restriction of
Hazardous Substances)
-compliant packaging.
Description
SKY77521 is a transmit and receive Front End Module (FEM) designed in a very low profile
(1 mm), compact form factor for quad-band cellular handsets comprising GSM850/900,
DCS1800, and PCS1900 operation — a complete transmit VCO-to-Antenna and Antenna-to-
receive SAW filter solution. The FEM also supports Class 12 General Packet Radio Service
(GPRS) multi-slot operation and EDGE Polar Modulation. WCDMA switch-through support is
provided by three dedicated high-linearity ports.
The module consists of a GSM850/900 PA and DCS1800/PCS1900 PA block, impedance-
matching circuitry for 50 Ω input and output impedances, TX harmonic filtering, high linearity-
low insertion loss switches, and a CMOS Power Amplifier Control (PAC) block. A custom silicon
integrated circuit contains decoder circuitry to control the RF switch while providing a low
current external control interface.
Fabricated in InGaP/GaAs, the Heterojunction Bipolar Transistor (HBT) PA blocks support the
GSM850/900 bands and DCS1800/PCS1900 bands. Both PA blocks share common power
supply pads to distribute current. The output of the PA block and the outputs to the seven
receive pads connect to the antenna pad through a highly linear antenna switch. The
InGaP/GaAs die, switch die, Silicon (Si) controller die, and passive components are mounted on
a multi-layer laminate substrate and the entire assembly is encapsulated with plastic overmold.
RF input and output ports of the SKY77521 are internally matched to a 50 Ω load to reduce the
number of external components for a quad-band design. Extremely low leakage current
(10 μA, typical) of the FEM maximizes handset standby time. Band selection and control of
transmit and receive RF signal flows are performed by use of four external control pads. See
Figure 1 shown below. Mode of operation TX, RX, Band (GSM850, GSM900, DCS, PCS, and
UMTS) is controlled with 4 logic inputs: BS1, BS2, Mode, and Enable. Proper timing of the
TXEN input and the VAPC input ensures high isolation between the antenna and TX-VCO while
the VCO is being tuned prior to the transmit burst. The Enable input controls the initial turn-on
of the PAC circuitry to minimize battery drain.
The integrated power amplifier control (PAC) function provides envelope amplitude control by
reducing sensitivity to input drive, temperature, power supply, and process variation.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200522AB • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice. • August 23, 2007
1
1 page  
SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE –
TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT
Table 8. SKY77521 Electrical Characteristics GSM850/900 1
ADVANCE DATA SHEET
www.DataSheet4U.com
GMSK Mode
Parameter
Symbol
Conditions
Minimum Typical Maximum Unit
Frequency Range
Input Power
Supply Voltage
Supply Current
Leakage Current
GSM850
GSM900
f
PIN
VBATT
ICC
Power Added Efficiency
Harmonics
PAE
2f0 to 15f0
2f0 to 7f0
Output power
Input VSWR
Isolation
Stability
POUT
POUT_DEG 1
POUT_DEG 2
ΓIN
Stab
Load Mismatch
Noise Power
(TCASE = +25 °C)
(VBATT = 3.6 V)
Load
GSM 850 PNOISE_850
GSM 900 PNOISE_900
Phase Change
Phase Moulation Accuracy
εphase, RMS
—
—
—
—
VBATT = 3.6 V
TCASE = +25 °C
No input power
VAPC = 0 V
VBATT = 3.6 V
PIN = 6 dBm
POUT = 33.5 dBm
TCASE = +25 °C
BW = 3 MHz
5 dBm ≤ POUT ≤ 33.5 dBm
BW = 3 MHz
5 dBm ≤ POUT ≤ 33.5 dBm
VBATT = 3.6 V
TCASE = +25 °C
Load VSWR of 5:1 for all phases.
PIN = 0 dBm
VBATT = 3.6 V
TCASE = +25 °C
PIN = 0 dBm
VBATT = 3.3 V
PIN = 0 dBm
VBATT = 3.0 V
POUT ≤ 33.5 dBm
PIN = –15 dBm
TXEN = high
All combinations of the following parameters:
PIN = min. to max.
VBATT = 3.0 to 4.6 V
Load VSWR = 15:1, all phase angles
All combinations of the following parameters:
PIN = min. to max.
VBATT = 3.0 to 4.6 V and VBATT = 7.0 V ≤ 1 μs
Load VSWR = 100:1, all phase angles.
f0 + 20 MHz (869–894 MHz)
f0 + 20 MHz (935–960 MHz)
f0 + 10 MHz (925–935 MHz)
1805 – 1880 MHz
POUT = 5 to 33.5 dBm
VAPC = sawtooth signal
f = 2166 Hz
RMS phase error
824 — 849
MHz
880 — 915
0 — 6 dBm
3.0 3.6 4.6
V
— — 2.0 A
—
—
10 standby
100 pre-TX
μA
— 38 — %
— –35 –34
dBm
— –31 –30
33.5 34.0
—
31.5 —
dBm
—
30.5 —
—
— — 2:1
— –45 –40 dBm
No parasitic oscillation > –36 dBm
No module damage or permanent degradation
— — –84.5
— — –84.5
dBm
— — –74.0
— — –78.0
——
2 °/dB
——
2 degrees
1 Unless otherwise noted: 50 Ω system, pulsed operation with pulse width 2308 μs duty cycle 4:8, TCASE = –20 °C to +85 °C, VBATT = 3.0 V to 4.6 V.
Terminate all unused RF ports with 50 Ω during test.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200522AB • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice. • August 23, 2007
5
5 Page 
SKY77521 TX-RX FEM FOR QUAD-BAND GSM / GPRS / EDGE –
TRIPLE WCDMA BAND ANTENNA SWITCH SUPPORT
ADVANCE DATA SHEET
www.DataSheet4U.com
Table 12. SKY77521 Electrical Characteristics GSM 850/900 – Ports RX1, RX2 1
RX Mode
Parameter
Symbol
Conditions
Minimum
Maximum
Unit
Frequency Range
EGSM RX
850 RX
f_EGSM RX
f_850 RX
—
—
925 960
MHz
869 894
Insertion Loss
ANT – EGSM RX
ANT – 850 RX
f_EGSM RX
TCASE = +25 °C
—
1.3
dB
f_850 RX
TCASE = +25 °C
—
1.3
EGSM/850 TX–850 RX
— 10
Leakage from
TX-to-RX ports
EGSM/850 TX–EGSM RX
EGSM/850 TX–DCS RX
f_EGSM TX
— 12
dBm
— 12
EGSM/850 TX–PCS RX
— 12
1 Unless otherwise noted: 50 Ω system, pulsed operation with pulse width 2308 μs, duty cycle 4:8, TCASE = –20 °C to +85 °C. Terminate all unused RF ports with 50 Ω during test.
Table 13. SKY77521 Electrical Characteristics GSM 1800/1900 – Ports RX3, RX4 1
RX Mode
Parameter
Symbol
Conditions
Minimum
Maximum
Unit
Frequency range
DCS RX
PCS RX
f_DCS RX
f_PCS RX
Insertion Loss
ANT–DCS RX
ANT–PCS RX
Leakage from TX- to
RX-ports
DCS/PCS-TX–850 RX
DCS/PCS-TX–EGSM RX
DCS/PCS-TX–DCS RX
DCS/PCS-TX–PCS RX
—
—
f_DCS RX
TCASE = +25 °C
f_PCS RX
TCASE = +25 °C
f_DCS TX
f_PCS TX
1805 1880
MHz
1930 1990
— 1.8 2
dB
— 1.8 2
— 12
— 12
dBm
— 10
— 12
1 Unless otherwise noted: 50 Ω system, pulsed operation with pulse width 2308 μs, duty cycle 4:8, TCASE = –20 °C to +85 °C. Terminate all unused RF ports with 50 Ω during test.
2 With external shunt capacitor, insertion loss is about 1.4 dBm.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
200522AB • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice. • August 23, 2007
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet SKY77521.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SKY77521 | TX-RX FEM | Skyworks Solutions |
| SKY77527-21 | Front-End Module | Skyworks Solutions |
| SKY77528 | Front-End Module | Skyworks Solutions |
| SKY77529 | Front-End Module | Skyworks Solutions |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |