32kHz Ultra-Fast-Lock IoT PLL

Overview

The Silicon Creations Low Bandwidth, Ultra-Fast-Lock "IoT" PLL is ideal for generating a high quality output clock from a low frequency input reference (e.g. 32.768kHz). Extremely fast lock time enables low-power systems to efficiently start up without wasting power during long initialization sequences. A wide VCO frequency range allows the PLL to be optimized for lowest power or lowest jitter. With excellent supply noise immunity, the PLL is ideal for use in noisy mixed signal SoC environments. By combining excellent jitter performance into a low
power, low area, fast-locking design, this PLL helps to enable competitive chip designs for battery operated or other low power applications.

Key Features

Input frequency range includes 32.768kHz
Output frequency range: <10MHz to >200MHz
Ultra-fast start-up. Frequency calibration ensures Fout is within 2% in <1.4ms from cold start
Warm start in 3 reference cycles (<100us)
Operation with total power below 10uW possible
Can load previous frequency calibration settings for almost instant restarting
No external components required
Loop dynamics automatically adjust for any input/output frequency combination
Lock Detect Signal indicates when frequency lock has been achieved

Benefits

PLL design is ideal for digital core clocking and can generate a clock with sufficiently low jitter to clock audio Codecs
PLL can be programmed for lowest jitter or lowest power
No external components required
No additional supply decoupling required
Loop automatically adjusts for any input frequency, so no complicated programming is required

Deliverables

GDSII
CDL Netlist (MG Calibre Compatible)
Functional Verilog Model
Liberty timing models (.lib)
LEF
Application Note

Technical Specifications

Foundry, Node

TSMC, SMIC ... 5nm, 7nm, 10nm, 12-16nm, 28nm, 40nm, 110nm

Maturity

Production

Availability

Available Now

SMIC

In Production: 110nm G
Pre-Silicon: 130nm G , 130nm LL

TSMC

In Production: 5nm , 7nm , 10nm , 12nm , 16nm , 28nm HPCP , 40nm LP
Pre-Silicon: 28nm HPM
Silicon Proven: 28nm HPC

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