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SKY77187-14
SKY77187-14 - Brand New SKYWORKS IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
Description
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.
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.
Features
• 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)
• 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
• High impedance control
inputs, 15 µA, typical
Applications
• Quad-band cellular handsets comprised of
- Class 4 GSM850/900
- Class 1 DCS1800 PCS1900
- Class 12 GPRS multi-slot operation
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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