+3 V/-3 V Operation 1.2 Gbps Write Driver for Hard Disk Drives(<Special Section>Low-Power System LSI, IP and Related Technologies)

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概要

• 論文の詳細を見る

• This paper describes low voltage write driver with pulse adding circuit. The presented write driver is constructed from the main switch circuit with impedance matching and pulse adding circuits and a timing generator. The main switch circuit is voltage type driver with matching resisters for flexible lines between a write driver and a write head. For 1.2 Gbps operation, the flexible lines have to be treated as transmission lines. Furthermore, to achieve steep rise/fall edge, the pulse adding circuits to generate double of supply voltage, +3.3/-3 V, at rise/fall edge have been developed. The write driver was implemented using 0.35 μm BiCMOS process. The die size is 1.2mm × 0.6mm and the measured results achieved tr/tf of less than 0.25ns, tp of 0.5ns and I_p of 73mA.

• 社団法人電子情報通信学会の論文
• 2004-04-01

著者

• Okuma Yasuyuki

  Central Research Laboratory Hitachi Ltd.

• Yoshizawa Hiroyasu

  Device Development Center Hitachi Ltd.

• MAIO Kenji

  Central Research Laboratory, Hitachi, Ltd.

• Maio Kenji

  Central Research Laboratory Hitachi Ltd.

関連論文

• +3 V/-3 V Operation 1.2 Gbps Write Driver for Hard Disk Drives(Low-Power System LSI, IP and Related Technologies)

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