The MB86L12A is a new member of Fujitsu’s family of multimode, multiband transceivers that feature no external LNAs or inter-stage SAW filters in the TX and RX paths of both 3G and LTE lineups. The MB86L12A builds on the capabilities of its predecessor, the MB86L10A, and adds support for the 4G (Version 1.0) revision of the interface.

A high-level programming model controls the radio using an open standard digital interface (3G and 4G DigRF/MIPI), which is compatible with a wide range of industry basebands. Simultaneous support of both 3G and 4G interfaces allows the MB86L12A to be paired with one or two baseband processor ICs as needed.

Building on the revolutionary short-cycle RF programming method used in Fujitsu’s MB86L01A, the MB86L12A speeds RF subsystem implementations with simplified layerone programming and embedded intelligence. With this revolutionary approach, an engineer enters a single command stating the desired channel and power level. This command sets the parameters and times the events so that system compliance is virtually assured.

Eight outputs directly drive the power amplifier and eliminate the need for TX inter-stage SAW filters. The new RF frontend eliminates the need for LNAs and RX inter-stage SAW filters. Nine primary and five secondary inputs support LTE, WCDMA and GSM/EDGE. The receiver also incorporates antialiasing filters, digital channel filters, digital gain control and high-dynamic-range ADCs. The transceiver offers SPI or MIPI RFFE and/or GPOs to control PAs, switching regulators and the antenna switch. A microcontroller unit in the transceiver enables simplified timing and control.

The new, compact module enables cell-phone manufacturers to reduce component count, board space and bill of materials.

PDF Click here to download M86L12A RF Transceiver fact sheet

Applications

• Mobile phones
• Mobile Internet devices
• Data cards
• Embedded modules

Features

• 6.5mm × 9.0mm × 0.9mm LGA package
• Successor to the MB86L10A which eliminates external LNAs, as well as both TX and RX inter-stage SAW filters from 3G and 4G paths
• GSM/EDGE/EDGE EVO/CDMA/TD-SCDMA/WCDMA/HSPA+/ LTE-FDD/LTE-TDD
• Quad band GSM/EDGE
• FDD Bands 1-21, 23-25
• TDD Bands 33-41
• CDMA BC0, BC1, BC6, BC15
• TD-SCDMA 34,39
• Support for:
  - EGPRS Class 34 operation
  - WCDMA FDD HSDPA category 24
  - WCDMA FDD HSUPA with 4 E-DPDCH category 6
  - LTE category 4 data rate
• 14 differential RF inputs for the receiver
  - 9 differential RF inputs on the primary receiver
  - 5 differential RF inputs on the diversity receiver
• 8 RF outputs on transmitter
• Optimized design minimizes factory calibration time
• Multiband and Multimode PA support
• DigRF/MIPI 3G (Version 3.09) and 4G (Version 1.0)
• RX and TX auto calibration routines
• Auxiliary SPI or MIPI RFFE to control PAs, DC–DC converters, switching regulators and antenna switch
• Optional GPO ports available for non-SPI components
• Simplified timing and control via an RF API