March 28 1996 Fujitsu Ltd.

Fujitsu and Fujitsu VLSI have jointly released the new ASTRO ARRAY series for digital mobile communications in the 2.5 GHz frequency bands. They will start accepting orders from domestic and foreign mobile communications equipment makers on March 28 1996.

Recently, mobile communication equipment such as Personal Handy phone system is rapidly widespread. So, terminal equipment using digital system (with superior characteristics to analog system) is expected to remarkably increase in worldwide.
In order that it is widespread, smaller size and lower power is required.

The Fujitsu ASTRO ARRAY IV NB1570 series is an enhanced version of the conventional ASTRO ARRAY series.
In addition to the high-frequency analog VCO, MIX, and AMP circuits in the conventional ASTRO ARRAY, this series incorporates cells such as cross-flow modulator and demodulator required for digital communications, IF-band RSSI, LIMIT-AMP, and AGC. The advanced isolation layout technology also improves isolation to permit compound LSIs for these cells.

This series achieves a transmitting/receiving front-end system LSI incorporating the entire radio system, excluding GaAs ICs such as power AMP, and LNA and filters, in one chip.

This series achieve about 30% reduction of low power and max 30% reduction of mounted area, compared with previous series.
This improvement is given by higher integrated semicustom IC technology which is realized by U-ESBIC*2 technology and circuit optimization. Current consumption of 9 mA in the lock mode (at operating frequencies of 2.0 GHz and 0.5 GHz) is the world's lowest value in its class. The PLL*3 unit contains a unique circuit (supercharger) for high-speed tuning required by digital mobile communications equipment.

*1 ASTRO: Advanced Semicustom Technology for RF System On LSI
*2 U-ESBIC: U-Groove Isolated-Emitter Case Self-aligned Bi CMOS
*3 PLL: Phase Locked Loop

[Sample Price]1,500 yen

[Order Acceptance Date]March 28 1996

[Production Start] May 1996

[Target for Sales Quantity]200 K/Month

[Packages]48-pin SQFP, 64-pin SQFP

[Features of MB1570 Series]

1. Circuit configuration
   Prescaler for two circuits, PLL for two circuits, analog circuits for six macros is possibly to be mounted.
   * AMP, MIX, and VCO analog circuits plus cross-flow modulator and demodulator, LIMIT-AMP, and RSSI as standard

2. High-speed operation and low-current consumption
   Operating frequency: Up to 3 GHz
   • Power consumption in PLL lock mode: 9 mA (operating frequencies of 2.0 GHz and 0.5 GHz)
   • On-Chip Supercharger circuit for high-speed tuning (In case that the IC which installs this circuit is applied for personal Handy phone system, transmitting/receiving channel switching time of PHS is 500m/s)

[Press Contact]

Public Relations Division

Tel: (03) 3215-5236

[Customer Contact]

Wireless Communication LSI Design Department Applied System LSI Division

Tel: (044) 754-2365