TI brings new sine-to-sine wave clock buffer

DALLAS, USA: Texas Instruments Incorporated (TI) announced on Tuesday that it introduced the industry's smallest four-channel, low-power, low-jitter sine-to-sine wave clock buffer, the first device in a family of sine-wave clock buffers.

The CDC3S04 can replace up to three individual same-frequency temperature compensated crystal oscillators (TCXOs), reducing board space and bill of materials (BOM) by nearly half, said a press release.

Designers can use the CDC3S04 in a wide range of mobile applications including cell phones (UMTS/WCDMA/GSM), smartphones, mobile Internet devices (MID), ultra mobile PCs (UMPC), navigation units and global positioning systems (GPS).

The release claimed that 1:4 low-jitter, sine-to-sine clock buffer could replace multiple TCXOs, saving board space and cost. Moreover, an integrated on-chip LDO saves board space by eliminating the need for an internal low-dropout (LDO) regulator.

The on-chip LDO acts as a TCXO on/off switch for power savings during low-power standby. This buffer distributes sine-wave signals to four different peripherals while adding negligible phase-noise, minimizing electromagnetic interference (EMI).

A built-in I2C interface gives customers real-time control for outputs, polarity and internal coding, the release added.