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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- The CDC3S04 is a four-channel low-power low-jitter sine-wave clock buffer. It can be used to buffer a single master clock to multiple peripherals. The four sine-wave outputs (CLK1–CLK4) are designed for minimal channel-to-channel skew and ultralow additive output jitter.
- Each output has its own clock request inputs which enables the dedicated clock output. These clock requests are active-high (can also be changed to be active-low via I2C), and an output signal is generated that can be sent back to the master clock to request the clock (MCLK_REQ). MCKL_REQ is an open-source output and supports the wired-OR function (default mode). It needs an external pulldown resistor. MCKL_REQ can be changed to wired-AND or push-pull functionality via I2C.
- The CDC3S04 also provides an I2C interface (Hs-mode) that can be used to enable or disable the outputs, select the polarity of the REQ inputs, and allow control of internal decoding.
- The CDC3S04 features an on-chip high-performance LDO that accepts voltages from 2.3 V to 5.5 V and outputs a 1.8-V supply. This 1.8-V supply can be used to power an external 1.8-V TCXO. It can be enabled or disabled for power saving at the TCXO.
- A low signal at the RESET input switches the outputs CLK1 and CLK4 into the default state. In this configuration, CLK1 and CLK4 are ON (see ); the remaining device function is not affected. Also, the RESET input provides a glitch filter which rejects spikes of typical 300 ns on the RESET line to preserve false reset. A complete device reset to the default condition can be initiated by a power-up cycle of VDD_DIG.
- The CDC3S04 operates from two 1.8-V supplies. There is a core supply (VDD_DIG/GND_DIG) for the core logic and a low-noise analog supply (VDD_ANA/GND_ANA) for the sine-wave outputs. The CDC3S04 is designed for sequence-less power up. Both supply voltages may be applied in any order.
- The CDC3S04 is offered in a 0.4-mm pitch WCSP package (1.6 mm × 2 mm) and is optimized for low standby current (0.5 µA). It is characterized for operation from –40°C to 85°C.
CDC3S04YFFR Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 20 Pin |
| Case/Package | DSBGA-20 |
| Frequency | 52 MHz |
| Supply Voltage (DC) | 1.80 V |
| Number of Outputs | 4 Output |
| Supply Current | 2.00 mA |
| Number of Circuits | 1 Circuit |
| Input Current | 2.00 mA |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -30 ℃ |
| Supply Voltage | 1.65V ~ 1.95V |
| Supply Voltage (Max) | 1.95 V |
| Supply Voltage (Min) | 1.65 V |
| Show | |
| Size-Height | 0.33 mm |
| Operating Temperature | -30℃ ~ 85℃ |
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
| REACH SVHC Compliance | No SVHC |
| REACH SVHC Compliance Edition | 2015/06/15 |
| ECCN Code | EAR99 |
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