SKY77621-11

Multimode Multiband Power Amplifier Module


Please note: SKY77621-11 is being discontinued and is not recommended for new designs. The suggested replacement is SKY77621-31



Skyworks SKY77621-11 is a hybrid multimode multiband (MMMB) Power Amplifier Module (PAM) that supports 2.5G / 3G / 4G handsets, and operates efficiently in GSM, EGPRS, EDGE, WCDMA, TD-SCDMA, and LTE modes. The module is fully programmable through a MIPI interface.

The PAM consists of a GSM850 / EGSM900 PA block, a DCS1800 / PCS1900 PA block, a WCDMA / LTE block for low and high bands, and a Multi-Function Control (MFC) block, RF input/output ports internally matched to 50 £[ to reduce the number of external components. A CMOS integrated circuit, using standard MIPI control, provides the internal MFC interface and operation. Extremely low leakage current maximizes handset standby time.

The InGaP die and the silicon die and passive components are mounted on a multi-layer laminate substrate. The assembly is encapsulated in a 5 x 7 x 0.9 mm, 42-pad MCM, SMT package which allows for a highly manufacturable, low cost solution.

2.5G The SKY77621-11 supports the GSM850, EGSM900, DCS1800, and PCS1900 bands as well as 2.5G Class12 Enhanced General Packet Radio Service (EGPRS) multi-slot operation and EDGE linear modulation.

In GMSK mode, adjusting VRAMP controls power output. In EDGE mode, PIN controls power output and VRAMP sets the bias.

3G The SKY77621-11 supports WCDMA, High-Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), High Speed Packet Access (HSPA+), and TD-SCDMA modulations. Varying the input power level provides output power control. VCC is adjusted using a DCDC converter or Envelope Tracking (ET) modulator to maximize efficiency for each power level and modulation type.

4G The SKY77621-11 supports 1.4, 3, 5, 10, 15, 20 MHz channel bandwidths. Similar to 3G operation, output power is controlled by varying the input power and VCC is adjusted using a DCDC converter or ET modulator to maximize efficiency for each power level.

3G / 4G Modulation scheme includes:

  • WCDMA Voice Release 99
  • HSDPA categories
  • HSUPA
  • HSPA+
  • TD-SCDMA
  • LTE 1.4, 3, 5, 10, 15, 20 MHz Channel BW

Specifications

Frequency (MHz) 
824-849
880-915
1710-1785
1850-1910
1920-1980
1850-1910
1710-1785
1710-1755
824-849
880-915
699-716
777-787
704-716
832-862
703-748
1880-1920
2010-2025
Replacement Part SKY77621-31
DescriptionMMMB PAM
GSM/EDGE850
GSM/EDGE900
GSM/EDGE1800
GSM/EDGE1900
WCDMA/LTE B1
WCDMA/LTE B2
WCDMA/LTE B3
WCDMA/LTE B4
WCDMA/LTE B5
WCDMA/LTE B8
LTE B12
LTE B13
LTE B17
LTE B20
LTE B28
LTE B39
TD-SCDMA Band 34
Typical PAE (%)TBD
Typical Imax (mA)TBD
Typical Gain (dB)TBD
Supply Voltage (V)TBD
PackageMCM, 42-pin
Package (mm)5 x 7 x 0.9

Features

  • Hybrid PA architecture
  • Two 2G/2.5G outputs
  • Eight 3G/4G outputs
  • Industry-leading PAE for 2G/3G/4G
  • Optimized for APT DCDC operation
  • Supports Envelope Tracking (ET) application
  • Fully programmable Mobile Industry Processor Interface (MIPI) control
  • MIPI programmable bias modes optimize best efficiency / linearity trade-off for 3G and 4G; minimizes DG09 for 3G.
  • Analog VRAMP for 2G/2.5G controls GMSK power output and sets EDGE bias
  • Small, low profile package: 5 mm x 7 mm x 0.9 mm, 42-pad configuration

Product Documents