Microchip CW01 Handleiding
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2017 Microchip Technology Inc.DS20005810A-page 1
CW01
Features
•Low Phase Noise
•100V Open Drain N-channel
•High-speed D Flip-flop
•High-speed MOSFET Gate Driver
•Up to 200 MHz Clock Input
• VDD and VLL Undervoltage Lockout
Applications
•Diagnostic Medical Ultrasound
•Fluid Flow Measurement
General Description
The CW01 is a 4-channel low-phase-noise continuous
wave transmitter 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 VDDand VLLhave undervoltage lockout to
prevent spurious turn-on.
Package Type
See Table 2-1 for pin information.
24-lead QFN
(Top view)
OE
VSS
VD1
VD2
PGND1
HVOUT
1
PGND2
HVOUT
2
VSS
HVOUT
3
PGND3
HVOUT
4
VLL
VSS
VD4
VD3
PGND4
DIN1
DIN2
VDD
CLK
VSS
DIN3
DIN4
1
24
4-Channel Low-Phase-Noise Low-Power Continuous Wave Transmitter
Product specificaties
| Merk: | Microchip |
| Categorie: | Niet gecategoriseerd |
| Model: | CW01 |
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