ENABLE/DISABLE FUNCTION; DIFFERENTIAL OUTPUT; TR, 7 INCH
Fall Time-Max:
0.2 ns
Frequency Adjustment-Mechanical:
NO
Frequency Stability:
50%
JESD-609 Code:
e4
Mounting Feature:
SURFACE MOUNT
Number of Terminals:
8
Operating Frequency-Max:
1000 MHz
Operating Frequency-Min:
10 MHz
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Oscillator Type:
LVPECL
Output Load:
150 OHM
Physical Dimension:
7.0mm x 5.0mm x 1.15mm
Rise Time-Max:
0.2 ns
Supply Voltage-Max:
3.465 V
Supply Voltage-Min:
3.135 V
Supply Voltage-Nom:
3.3 V
Surface Mount:
YES
Symmetry-Max:
55/45 %
Terminal Finish:
Nickel/Gold (Ni/Au)
LMK61E2-SIAR Frequently Asked Questions (FAQs)
A good PCB layout for the LMK61E2-SIAR involves keeping the clock input traces short and away from noisy signals, using a solid ground plane, and placing decoupling capacitors close to the device. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To ensure proper bypassing and decoupling, place a 10uF capacitor between the VCC pin and the GND pin, and a 0.1uF capacitor between the VCC pin and the GND pin. Additionally, use a 1uF capacitor between the VCCA pin and the GND pin. These capacitors should be placed as close to the device as possible.
The recommended clock input signal for the LMK61E2-SIAR is a differential clock signal with a frequency range of 10MHz to 100MHz, and an amplitude of 200mV to 1V peak-to-peak. The clock signal should be AC-coupled to the device using a 100nF capacitor.
To configure the LMK61E2-SIAR for a specific output frequency, use the device's internal PLL to multiply the input clock frequency. The output frequency can be calculated using the formula: fOUT = (fIN x M) / N, where fIN is the input clock frequency, M is the PLL multiplier, and N is the PLL divider. The M and N values can be programmed using the device's control registers.
The maximum output current of the LMK61E2-SIAR is 20mA per output pin. However, it's recommended to limit the output current to 10mA per pin to ensure reliable operation and to prevent overheating.
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LMK61E2-SIAR Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
