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The LMK3C0105V33RERR is a reference-free clock generator with five output ports using bulk Acoustic wave (BAW) technology ‌. This device does not require an external reference and can provide a stable clock output, making it suitable for a variety of application scenarios.

Its main features include

Integrated BAW resonator, no external reference required

Flexible frequency generation

100MHz to 400MHz dual-channel fractional output crossover (FOD)

Two-channel crossover: Up to three unique output frequencies, ranging from 2.5MHz to 200MHz

Example: OUTA/B/C/D/E = 25MHz

OUTA/B = 100MHz, OUTC/D =50MHz, OUTE = 25MHz

Supported 1.8V/2.5V/3.3V LVCMOS output, up to 200MHz at most

Generate up to 5 LVCMOS clocks on the OUTA to OUTE pins

±25ppm total output frequency stability

Two operation modes: I2C or pre-programmed OTP

Ambient temperature: -40 °C to 85°C.

Support for hybrid SSC and non-SSC output

Programmable SSC modulation depth

Pre-programming: Downward spread spectrum of -0.1%, -0.25%, -0.3% and -0.5%

Register programmable: -0.1% to -3% downward spread frequency or ±0.05% to ±1.5% center spread frequency

VDD = VDDO = 1.8V/2.5V/3.3V ± 5%

The startup time is less than 5ms

When the output comes from the same FOD, the output-to-output offset is less than 50ps

Failure protection input and VDD pins

Description

The LMK3C0105V33RERR is a 5-output no-reference clock generator with SSC support. The LMK3C0105V33RERR is based on TI's proprietary bulk acoustic wave (BAW) technology and can provide ±25ppm clock output without any crystal or external clock reference. The LMK3C0105V33RERR can simultaneously provide 5 SSC clocks, 5 non-SSC clocks, or a combination of SSC and non-SSC clocks. Five outputs can generate up to three different output frequencies. Each output channel can select any FOD as the frequency source to generate four LVCMOS clocks. The REF_CTRL pin is used as the fifth LVCMOS clock output, and any FOD can be selected as the source.

This device can be easily configured through GPIO pins or the I2C interface. The LMK3C0105V33RERR has an excellent PSNR and does not require any external LDO.

Basic parameters

Product: LMK3C0105V33RERR

Type: Clock Generator

PLL: None

Input: -

Output: LVCMOS

Number of circuits: 1

Ratio - Input: Output: 0:5

Differential - Input: Output: None/None

Frequency - Maximum value: 200MHz

Frequency divider/frequency multiplier: None/Yes

Voltage - Power supply: 1.71V - 1.89V, 2.375V - 2.625V, 3.135V - 3.465V

Operating temperature: -40°C to 85°C (TA)

Installation type: Surface mount type

Package/Shell: 16-TFQFN

Application field

LMK3C0105V33RERR is widely applied in the following fields:

Alternative crystal ‌ : As a clock source alternative to conventional crystals for applications that require multiple clock outputs.

ASIC, FPGA, MCU‌ : PROVIDE a stable reference clock for these chips.

Industrial communications ‌ : Provide a stable clock signal in industrial communications systems.

Industrial PC and Human-Machine interface (HMI) ‌ : Ensure system synchronization and stable operation.

Wired network ‌ : provides stable clock support in data transmission and communication.

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