LMX1205RHAT-Texas Instruments-Price, Stock & Datasheet

The high frequency capability, extremely low jitter and programmable clock input and output delay of this device, makes a great approach to clock high precision, high-frequency data converters without degradation of signal-to-noise ratio. Each of the four high frequency clock outputs and additional LOGICLK outputs with larger divider range, is paired with a SYSREF output clock signal. The SYSREF signal for JESD204B/C interfaces can either be internally generated or passed in as an input and re-clocked to the device clocks. The noiseless delay adjustment at input path of the high frequency clock input and individual clock output paths insures low skew clocks in multi-channel system. For data converter clocking application, having the jitter of the clock less than the aperture jitter of the data converter is important. In applications where more than four data converters need to be clocked, a variety of cascading architectures can be developed using multiple devices to distribute all the high frequency clocks and SYSREF signals required. This device, combined with an ultra-low noise reference clock source, is an exemplary choice for clocking data converters, especially when sampling above 3GHz.

Output frequency: 300MHz to 12.8GHz
Noiseless adjustable input delay up to 60ps with 1.1ps resolution
Individual adjustable output delays up to 55ps with 0.9ps resolution
Ultra-low noise
- Noise floor: –159dBc/Hz at 6GHz output
- Additive jitter (DC to fCLK): 36fs
- Additive jitter (100Hz to 100MHz): 10fs
Four high-frequency clocks with corresponding SYSREF outputs
- Shared divide by 1 (Bypass), 2, 3, 4, 5, 6, 7, and 8
- Shared programmable multiplier x2, x3, x4, x5, x6, x7 and x8
LOGICLK output with corresponding SYSREF output
- On separate divide bank
- 1, 2, 4 pre-divider
- 1 (bypass), 2, …, 1023 post divider
- Second logic clock option with additional divider 1, 2, 4 & 8
Six programmable output power levels
Synchronized SYSREF clock outputs
- 508 delay step adjustments of less than 2.5ps at 12.8GHz
- Generator, repeater and repeater retime modes
- Windowing feature for SYSREFREQ pins to optimize timing
SYNC feature to all divides and multiple devices
Operating voltage: 2.5V
Operating temperature: –40ºC to +85ºC

Texas Instruments LMX1205RHAT

Manufacturer No:

LMX1205RHAT

Manufacturer:

Texas Instruments

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Description:

Low-noise, high-frequency buffer/multiplier/divider with JESD204 support and prog. clock delays

In Stock :8859

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ANSI/ESD S20.20

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