1©2017 Integrated Device Technology, Inc December 18, 2017
Description
The 5X2503 MicroClock is a programmable clock generator and is
intended for low-power, consumer, wearable and smart devices.
The 5X2503 device is a 3 PLL architecture design. Each PLL is
individually programmable, allowing for up to 3 unique frequency
outputs. The 5X2503 has built-in unique features such as Proactive
Power Saving (PPS) to deliver better system-level power
management.
An internal OTP memory allows the user to store the configuration in
the device without programming after power up. It can then be
reprogrammed again through the I
2
C interface.
The device has programmable VCO and PLL source selection
allowing the user to do power-performance optimization based on
the application requirements. A low-power 32.768kHz clock is
supported with only less than 2μA current consumption for system
RTC reference clock needs.
Typical Applications
▪ SmartDevice, Handheld, Wearable applications
▪ Consumer application crystal replacement
Features
▪ Configurable OE1 pin function as OE, PPS or DFC control
function
▪ PPS: Proactive Power Saving features save power during the end
device power-down mode
▪ DFC: Dynamic Frequency Control feature allows programming up
to 4 difference frequencies that switch dynamically
▪ Integrated 26MHz crystal; no external input source requirement
▪ Spread spectrum clock support to lower system EMI
▪ I
2
C Interface
Output Features
▪ 3 LVCMOS outputs, 1MHz–125MHz
▪ Low-power 32.768kHz clock supported
▪ Wireless clock crystal integration and fan-out directly
Key Specifications
▪ 2μA operation for RTC clock 32.768kHz output
▪ 2.5 × 2.5 mm 12-DFN with crystal integration; small-form-factor
package
Block Diagram
Overshoot Reduction
(ORT)
OSC
PLL2
OUT3
OUT2
OUT1
PLL3
OE1
SDA_DFC0/OE2
SEL_DFC/ SCL_DFC1/OE3
OTP memory (1 configuration ) Proactive Power Saving Logic (PPS)
I
2
C Engine
VDDOUT1
Dynamic Frequency Control Logic (DFC)
POR
Power
Monitor
VDD1_8
32.768K
DCO
Calibration
VSS
VDDOUT2
PLL1
VSS
VSS
Mux
&
Divider
5X2503
Datasheet
MicroClock Programmable Clock
Generator
