Overview
The LMK04832NKDT, produced by Texas Instruments, is an ultra-high performance clock conditioner that supports JEDEC JESD204B and is pin-compatible with the LMK0482x family of devices. This component is designed to provide flexible and high-performance clocking solutions, particularly in applications requiring low noise and high precision. It features dual VCOs, dynamic digital delay, and holdover modes, making it ideal for various high-performance clocking needs.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package Type | WQFN (64 pins) | 9.00 mm × 9.00 mm |
| Operating Temperature | -40°C to 85°C | |
| Supply Voltage | 3.15 V to 3.45 V | |
| Clock Outputs | Programmable formats: CML, LVPECL, LCPECL, LVDS, or 2xLVCMOS | 14 outputs |
| PLL Reference Input Frequency | PLL2 Reference Input | Up to 500 MHz |
| Phase Noise at 10 kHz Offset | Normalized to 1 GHz Output Frequency | -128 dBc/Hz (typical) |
| Thermal Resistance (Junction-to-Ambient) | RθJA | 24.3 °C/W |
Key Features
- Dual VCOs for flexible clock generation
- Dynamic digital delay and holdover mode for PLL1
- Programmable clock output formats: CML, LVPECL, LCPECL, LVDS, or 2xLVCMOS
- Up to 1 buffered VCXO/XO output
- 1-1023 CLKout divider and 1-8191 SYSREF divider
- 25-ps step analog delay for SYSREF clocks
- Supports 105°C PCB temperature
Applications
- Test and Measurement
- RADAR systems
- Microwave Backhaul
- Data Converter Clocking
Q & A
- What is the primary function of the LMK04832NKDT?
The LMK04832NKDT is an ultra-high performance clock conditioner designed to provide low-noise and high-precision clocking solutions.
- What are the supported clock output formats?
The clock outputs can be configured in CML, LVPECL, LCPECL, LVDS, or 2xLVCMOS formats.
- How many clock outputs does the LMK04832NKDT have?
The device has 14 programmable clock outputs.
- What is the maximum operating temperature of the LMK04832NKDT?
The device can operate up to 85°C.
- What are the typical applications of the LMK04832NKDT?
Typical applications include Test and Measurement, RADAR systems, Microwave Backhaul, and Data Converter Clocking.
- Does the LMK04832NKDT support JESD204B compliance?
- What is the phase noise performance at 10 kHz offset?
The phase noise at 10 kHz offset is typically -128 dBc/Hz normalized to a 1 GHz output frequency.
- Can the LMK04832NKDT operate in different PLL modes?
- What is the thermal resistance (junction-to-ambient) of the LMK04832NKDT?
The thermal resistance (junction-to-ambient) is 24.3 °C/W.
- How can the clock output formats be programmed?
The clock output formats can be programmed using the device's SPI interface and configuration registers.
