SKY77517-21 Skyworks Solutions, SKY77517-21 Datasheet

no-image

SKY77517-21

Manufacturer Part Number
SKY77517-21
Description
TX-RX iPAC FEM
Manufacturer
Skyworks Solutions
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SKY77517-21
Manufacturer:
NS
Quantity:
81
Part Number:
SKY77517-21
Manufacturer:
SKYWORKS/思佳讯
Quantity:
20 000
www.DataSheet4U.com
DATA SHEET
SKY77517–21 TX-RX iPAC
Applications
• Dual-band cellular handsets
Features
• High efficiency
• Low transmit supply current
• Internal ICC sense resistor for iPAC
• Closed loop iPAC
• 50 Ω matched Input/Output
• TX–VCO-to-antenna and antenna-
• TX harmonics below –33 dBm
• PHEMT RF switches afford high
• Small outline: 6 mm x 8 mm
• Low profile: 1.2 mm
• Compatible with multiple logic
• Low APC current: 25 μA
encompassing
- Class 4 GSM850
- PCS1900
- Class 12 GPRS multi-slot
- GSM850 48%
- PCS 41%
- GSM850 1.26 A
- PCS1900 0.9 A
to-RX-SAW filter RF interface
linearity, low insertion loss, and
less than 20 μA supply current in
receive modes
families
operation
200784A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice. • November 6, 2007
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
Description
The SKY77517–21 is a transmit and receive front-end module (FEM) with Integrated Power
Amplifier Control (iPAC™) for dual-band cellular handsets comprising GSM850 and PCS1900
operation. Designed in a low profile, compact form factor, the SKY77517–21 offers 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 a GSM850 PA block and a PCS1900 PA block, impedance-matching
circuitry for 50 Ω input and output impedances, TX harmonics filtering, high linearity and low
insertion loss PHEMT RF switches, diplexer and a Power Amplifier Control (PAC) block with
internal current sense resistor. A custom BiCMOS integrated circuit provides the internal PAC
function and decoder circuitry to control the RF switches. The two Heterojunction Bipolar
Transistor (HBT) PA blocks are fabricated onto a single Gallium Arsenide (GaAs) die. One PA
block supports the GSM850 band and the other PA block supports the PCS1900 band. Both PA
blocks share common power supply pads to distribute current. The output of each PA block
and the outputs to the two receive pads are connected to the antenna pad through PHEMT RF
switches and a diplexer. The GaAs die, PHEMT die, 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 modes are performed using two external
control pads. Refer to the functional block diagram in
selects between GSM and PCS modes of operation. The transmit enable (TX_EN) pad controls
receive or transmit mode of the respective RF switch (TX = logic 1). Proper timing between
transmit enable (TX_EN) and Analog Power Control (VRAMP) allows for high isolation between
the antenna and TX-VCO while the VCO is being tuned prior to the transmit burst.
The SKY77517 is compatible with logic levels from 1.2 V to VCC for BS and TX_EN pads,
depending on the level applied to the VLOGIC pad. This feature provides additional flexibility for
the designer in the selection of FEM interface control logic.
FEM for Dual-Band GSM/GPRS
Figure 1. Functional Block Diagram
Figure 1
below. The band select pad (BS)
1

Related parts for SKY77517-21

SKY77517-21 Summary of contents

Page 1

... Analog Power Control (VRAMP) allows for high isolation between the antenna and TX-VCO while the VCO is being tuned prior to the transmit burst. The SKY77517 is compatible with logic levels from 1 VCC for BS and TX_EN pads, depending on the level applied to the VLOGIC pad. This feature provides additional flexibility for the designer in the selection of FEM interface control logic ...

Page 2

... Table 1. Absolute Maximum Ratings Table 2. Recommended Operating Conditions Minimum Table 3. SKY77517–21 Mode Control Logic Mode SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS Figure 2 presents an application schematic for the Minimum Maximum ⎯ 15 ⎯ ...

Page 3

... SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS Parameter Supply voltage Power control impedance LOW VLOGIC control voltage HIGH VLOGIC current LOW www.DataSheet4U.com Band Select control voltage HIGH Band Select current LOW TX_EN control voltage HIGH TX_EN current Standby Mode Leakage current Receive Mode Skyworks Solutions, Inc. • ...

Page 4

... Mode = GSM_TX (see Table 5 dBm ≤ P ≤ 33 dBm OUT CGHI_TX-RX_F0 Mode = GSM_TX (see Table 5 dBm ≤ P ≤ 33 dBm OUT CGHI_TX-PCS_RX Mode = GSM_TX (see Table SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS dBm) IN Minimum Typical Maximum ⎯ 824 849 ⎯ ⎯ ...

Page 5

... SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS Parameter Spurious Load mismatch www.DataSheet4U.com RX Band Spurious Power control dynamic range Control level 5-15 ≥ 3 Power control variation Control level 16-19 Power control slope Parameter Frequency range 4 Insertion Loss, ANT to GSM_RX 4 VSWR ANT, GSM_RX Skyworks Solutions, Inc. • ...

Page 6

... OUT_ENABLED_TX LOGIC LOGIC_HIGH TX_EN = V TX_EN_HIGH Mode = PCS_TX (see Table 0 dBm ≤ P ≤ 31 dBm OUT CPCS_TX-RX_F0 Mode = PCS_TX (see Table SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS dBm) IN Minimum Typical Maximum ⎯ 1850 1910 ⎯ 0 ⎯ 0.2 1.8 ⎯ ...

Page 7

... SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS Parameter Spurious Load mismatch www.DataSheet4U.com RX Band Spurious Power control dynamic range Control level 0-8 V ≥ 3 Power control Control level 9-13 variation Control level 14-15 Power control slope Parameter Frequency range 4 Insertion Loss, ANT to PCS_RX 4 VSWR ANT, PCS_RX ...

Page 8

... November 6, 2007 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice. • 200784A PCS_IN μ Figure 2. SKY77517–21 Application Schematic Diagram SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS GSM_IN ANTENNA 200494_002 ...

Page 9

... SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS Package Dimensions and Pad Descriptions Figure mechanical diagram of the pad layout for the SKY77517–21, a 20-pad leadless dual-band FEM. provides a recommended phone board layout footprint for the FEM to help the designer attain optimum thermal conductivity, good grounding, and minimum RF discontinuity for the 50-ohm www ...

Page 10

... Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 10 November 6, 2007 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice. • 200784A SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS ...

Page 11

... SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS 1 20 VLOGIC 2 VRAMP 3 GROUND PAD 4 TX_EN BS 5 www.DataSheet4U.com 6 7 Pad layout as seen from top view looking through the package. Figure 5. SKY77517–21 FEM Package Pad Configuration – 20- Pad Leadless (Top View) Table 5. SKY77517–21 Pad Names and Signal Descriptions ...

Page 12

... Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 12 November 6, 2007 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice. • 200784A SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS ...

Page 13

... SKY77517-21 TX–Rx iPAC™ FEM FOR DUAL-BAND GSM/GPRS Electrostatic Discharge Sensitivity The SKY77517– Class 1 device. The ESD testing was performed in compliance with JEDEC JESD22-A114B Human Body Model (HBM) and JEDEC JESD22-A115B Machine Model (MM) requirements. Various failure criteria can be utilized when performing ESD testing. Many vendors employ relaxed ESD failure standards that fail devices only after “ ...

Page 14

... Application Note: Tape and Reel Information – RF Modules, Document Number 101568 Application Note: BiCMOS iPAC™ Front-End Module Implementation, Document Number 200576 Application Note: SKY77517 / SKY77518 Evaluation Board Information, Document Number 200574 Standard SMT Reflow Profiles: JEDEC Standard J-STD-020 JEDEC JESD22-A114B Human Body Model (HBM) JEDEC JESD22-A115B Machine Model (MM) © ...

Related keywords