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PDF SKY77500 Data sheet ( Hoja de datos )
| Número de pieza | SKY77500 | |
| Descripción | FEM | |
| Fabricantes | Skyworks Solutions | |
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DATA SHEET
SKY77500 iPAC™ FEM for Quad-Band GSM / GPRS
Applications
Description
• Quad-band cellular
handsets comprised of
- Class 4 GSM850/900
- Class 1 DCS1800
PCS1900
- Class 12 GPRS multi-slot
operation
Features
The SKY77500 is a transmit and receive Front End Module (FEM) designed in a low profile (1.2 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.
The module consists of separate GSM850/900 and DCS1800/PCS1900 PA blocks, internal circuitry for
matching to 50 Ω input and output impedances, TX harmonics filtering, high linearity and low
insertion loss PHEMT RF switches, diplexer, and an integrated power amplifier control (iPAC™)
function that utilizes an internal current-sense resistor. A custom silicon integrated circuit contains
decoder circuitry to control the RF switches while providing a low current external control interface.
• High efficiency
- GSM850 43%
- GSM900 43%
- DCS 40%
- PCS 40%
• Internal ICC sense-resistor
for iPAC
• Closed loop iPAC or open
loop operation with external
PAC circuit
• Input/Output matching 50
ohms internal (with DC
blocking)
Two Heterojunction Bipolar Transistor (HBT) PA blocks are fabricated onto a single Gallium Arsenide
(GaAs) die; one supports the GSM850/900 bands and the other supports the DCS1800 and PCS1900
bands. Both PA blocks share common power supply pins to distribute current. The output of each PA
block and the outputs to the four receive pins are connected to the antenna pin through PHEMT RF
switches and a diplexer. The GaAs die, PHEMT dies, Silicon (Si) die, and passive components are
mounted on a multi-layer laminate substrate. The assembly is encapsulated with plastic overmold.
Band selection and control of transmit and receive RF signal flows are performed by use of three
external control pins. See Figure 1 shown below. Two band select pins select GSM, DCS or PCS
modes
switch
(oTfXo=pelroagtiiocn1a).nPDdroathpteaerSTtXhim_eRienXgt4poUinf .tscheeolemlocgtsicthoen
receive or transmit mode
this pin, PAC Enable, and
of the respective RF
Analog Power Control
(APC) allow for high isolation between the antenna and TX-VCO while the VCO is being tuned prior to
the transmit burst. The PAC Enable input allows initial turn-on of the PAC circuitry to minimize battery
drain.
DataShee
• TX-VCO-to-antenna and
antenna-to-RX-SAW filter
RF interface
• TX harmonics below
–33 dBm·
• PHEMT RF switches afford
high linearity, low insertion
loss and less than 20 µA
supply current in receive
modes
• Small outline
- 8 mm x 10 mm
• Low profile
- 1.2 mm maximum
• Low APC current:
- 20 µA
• Gold plated, lead free
contacts
Figure 1. Functional Block Diagram
• High impedance control
inputs, 15 µA, typical
DataSheet4U.com
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
103146A • Skyworks Proprietary information. • Products and product information are subject to change without notice. • May 16, 2005
1
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1 page  
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iPAC™ FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET • SKY77500
Table 4. SKY77500 Electrical Specifications (1) (3 of 9)
GSM850 Mode (f = 824 to 849 MHz and PIN = 0 to 6 dBm) [continued]
Parameter
Symbol
Test Condition
Open Loop (4) Switching time
τRISE
Spurious
Load mismatch
Spur
Load
RX Band Spurious
et4U.com
RX_SPUR
Power control dynamic range
Power control
variation
Control level 7–15
(3.2 V ≤ VCC ≤ 4.5 V)
Control level 16–19
PCDR
PCV
Power control slope
Closed loop bandwidth
Loop phase margin
PCS
BCL
PM
Time from POUT = –10 dBm to within
0.5 dB of POUT = +5 dBm
Time from POUT = –10 dBm to within
0.5 dB of POUT = +20.0 dBm
Time from POUT = –10 dBm to within
0.5 dB of POUT = +33 dBm
All combinations of the following parameters:
VAPC = controlled (2)
PIN = min. to max.
VCC = 2.9 V to 4.8 V
Load VSWR = 12:1, all phase angles
All combinations of the following parameters:
VAPC = controlled (2)
PIN = min. to max.
VCC = 2.9 V to 4.8 V
Load VSWR = 20:1, all phase angles
At fO + 20 MHz (869 to 894 MHz)
RBW = 100 kHz
VCC = 3.5 V
TCASE = +25 °C 5 dBm ≤ POUT ≤ 33 dBm
At 1930 to 1990 MHz
RBW = 100 kHz
VCC = 3.5 V
DTCaAStEa=S+h2e5e°Ct45UdB.cmo≤mPOUT ≤ 33 dBm
—
POUT +13 to +33 dBm, +25 °C
POUT +13 to +33 dBm
POUT +5 to +11 dBm, +25 °C
POUT +5 to +11 dBm
5 to 33 dBm
VAPC = 1.0 V
VAPC = 1.0 V
GSM850 RECEIVE (f = 869 TO 894 MHz) Mode = GSM_RX
Frequency range
Insertion Loss, ANT-to-GSM_RX (5)
VSWR ANT, GSM_RX (5)
f
IL GSM_RX
ΓIN, ΓOUT
TCASE = +25 °C
—
—
Min. Typ. Max. Units
— 1.2 4.0
— 1.0 2.5
µs
— 1.4 3.0
No parasitic oscillation > –36 dBm
No module damage or permanent degradation
— –86 –83
dBm
— — –84
30 50
dB
–1.0 — +1.0
–1.5 — +1.5
–1.7 — +1.7
–2.0 — +2.0
dB
— — 300 dB/V
— 700 —
kHz
50 65 — deg.
869 — 894 MHz
— 1.1 1.3
dB
— 1.3:1 1.5:1
DataShee
DataSheet4U.com
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
103146A • Skyworks Proprietary information. • Products and product information are subject to change without notice. • May 16, 2005
DataSheet4 U .com
5
5 Page 
www.DataSheet4U.com
iPAC™ FEM FOR QUAD-BAND GSM / GPRS
DATA SHEET • SKY77500
et4U.com
Table 4. SKY77500 Electrical Specifications (1) (9 of 9)
PCS1900 Mode (f = 1850 to 1910 MHz and PIN = 0 to 6 dBm) [continued]
Parameter
Symbol
Test Condition
Min. Typ. Max. Units
Spurious
Load mismatch
Spur
Load
Rx Band Spurious
RX_SPUR
Power control dynamic range
PCDR
Power control
variation
Control level 0–8 (3.2 V
≤ VCC ≤ 4.5 V)
Control level 9–13
PCV
Control level 14–15
Power control slope
Closed loop bandwidth
Loop phase margin
PCS
BCL
PM
All combinations of the following parameters:
VAPC = controlled (3)
PIN = min. to max.
VCC = 2.9 V to 4.8 V
Load VSWR = 12:1, all phase angles
All combinations of the following parameters:
VAPC = controlled (3)
PIN = min. to max.
VCC = 2.9 V to 4.8 V
Load VSWR = 20:1, all phase angles
At fO + 20 MHz (1930 to 1990 MHz)
RBW = 100 kHz
VCC = 3.5 V
0 dBm ≤ POUT ≤ 30 dBm
TCASE = +25 °C
At 869 to 894 MHz
RBW = 100 kHz
VCC = 3.5 V
0 dBm ≤ POUT ≤ 30 dBm
TCASE = +25 °C
VCC = 3.5 V
POUT +14 to +30 dBm, +25 °C
POUT +14 to +30 dBm
POUT +4 to +12 dBm, +25 °C
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POUT 0 to +2 dBm, +25 °C
POUT 0 to +2 dBm
0 to 30 dBm
VAPC = 1.0 V
VAPC = 1.0 V
No parasitic oscillation > –36 dBm
No module damage or permanent degradation
— –89 –80 dBm
— — –87
35 50 —
dB
–1.0 — +1.0
–1.8 — +1.8
–1.9 — +1.9
–3.3 — +3.3
–3.0 — +3.0
–4.5 — +4.5
dB
— — 550 dB/V
— 500 —
kHz
75 — — deg.
PCS 1900 RECEIVE (f = 1930 to 1990 MHz) Mode = DCS_RX
Frequency range
f
— 1930 — 1990
Insertion Loss, ANT-to-DCS_RX (5)
IL DCS_RX
TCASE = +25 °C
— 1.3 1.5
VSWR ANT, DCS_RX (5)
ΓIN, ΓOUT
— — 1.2:1 1.5:1
(1) Unless specified otherwise:
TCASE = –20 °C to max. operating temperature (see Table 2), RL = 50 Ω, pulsed operation with pulse width ≤ 1154 µs and duty cycle ≤ 2:8, VCC = 2.9 V to 4.8 V.
(2) ICC = 0A to xA, where x = current at POUT = 33 dBm, 50 Ω load, and VCC = 3.5 V.
(3) ICC = 0A to xA, where x = current at POUT = 30 dBm, 50 Ω load, and VCC = 3.5 V.
(4) This device has an Open Loop mode that allows bypassing the internal PAC circuitry. See the Technical Information section at end of this document for further information.
(5) Terminate all unused RF ports with 50 Ω load.
(6) BS_1, BS_2, TX_RX, and PAC_EN inputs have active 200 kΩ pulldowns to ground.
MHz
dB
DataShee
DataSheet4U.com
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
103146A • Skyworks Proprietary information. • Products and product information are subject to change without notice. • May 16, 2005
DataSheet4 U .com
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| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet SKY77500.PDF ] | |
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