Masaru Kokubo, Takashi Oshima, Katsumi Yamamoto, Kunio Takayasu, Yoshiyuki Ezumi, Shinya Aizawa. A GFSK Transmitter Architecture for a Bluetooth RF-IC, Featuring a Variable-Loop-Bandwidth Phase-Locked Loop Modulator. IEICE Transactions, 88-C(3):385-394, 2005. [doi]
Abstract is missing.