CW01

www.DataSheet.co.kr Supertex inc. Four-Channel, Low Phase Noise, Low Power, Continuous Wave Transmitter Features ►► Low phase noise ►► 100V open drain N-channel ►► High speed D flip-flop ►► High speed MOSFET gate driver ►► Up to 200MHz clock input ►► VDD and VLL undervoltage lockout CW01 The Supertex CW01 is a four-channel, low phase noise, continuous wave transmit IC. A high speed D flip-flop is provided to allow the DIN frequency to be aligned to a high frequency clock. The output N-channel is turned on when a logic high is clocked into the D flip-flop. Data are clocked in during the low to high transition. VD1, VD2, VD3 and VD4 are four individual input supply voltages for the N-channel output MOSFET gate drivers. High peak currents are drawn from these gate drives when the output MOSFETs are switching. To minimize jitter caused by voltage ripples, each channel has its own gate drive voltage pin; VD1, VD2, VD3 and VD4. A series ferrite bead and a decoupling capacitor are recommended on each VDX pin to minimize output jitter and channel to channel crosstalk. Both VDD and VLL have undervoltage lockout to prevent spurious turn-on. General Description Applications ►► Diagnostic medical ultrasound ►► Fluid flow measurement Typical Application Circuit 8.0V (one of four channels) 5.0V 0.1µF 2.5V 0.1µF 2.0 to 5.0MHz 96MHz VD1 VDD OE VLL DIN1 CLK VSS DIN1 CLK VLL VD1 270µH BAV99 BAV23 HVOUT1 PZT Q1 Translator and Driver PGND1 Tx Supertex inc. ● 1235 Bordeaux Drive,...