Description:The 844003BI-01 is a 3 differential output LVDS Synthesizer designed to generate Ethernet reference clock frequencies and is a member of the family of high performance clock solutions from IDT. Using a 19.53125MHz or 25MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the settings of 4 frequency select pins (DIV_SELA[1:0], DIV_SELB[1:0]): 625MHz, 312.5MHz, 156.25MHz, and 125MHz. The 844003BI-01 has 2 output banks, Bank A with 1 differential LVDS output pair and Bank B
SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Primary Clock/Crystal Frequency-Nom:
27.2 MHz
Seated Height-Max:
1.1 mm
Supply Current-Max:
135 mA
Supply Voltage-Max:
3.465 V
Supply Voltage-Min:
3.135 V
Supply Voltage-Nom:
3.3 V
Surface Mount:
YES
Technology:
CMOS
Terminal Finish:
Tin (Sn)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Width:
4.4 mm
uPs/uCs/Peripheral ICs Type:
CLOCK GENERATOR, ETHERNET
844003BGI-01LF Frequently Asked Questions (FAQs)
Renesas provides a recommended PCB layout guide in their application note (APN) documents, which can be found on their website. The guide includes thermal vias, copper pours, and other layout considerations to ensure optimal thermal performance.
Renesas recommends following the power sequencing guidelines outlined in the datasheet, which involves powering up the VCC and VCCIO pins simultaneously, followed by the VREF pin. Additionally, Renesas provides a power sequencing application note that provides more detailed guidance.
While the datasheet specifies an operating temperature range of -40°C to 85°C, Renesas recommends derating the device's performance at temperatures above 70°C to ensure reliability and prevent thermal shutdown.
Renesas provides an I2C troubleshooting guide in their application note documents, which covers common issues such as bus contention, clock stretching, and slave address conflicts. Additionally, Renesas recommends using an I2C analyzer tool to debug I2C communication issues.
Renesas recommends following the JEDEC J-STD-020D.1 standard for soldering profiles, which specifies a peak temperature of 260°C and a dwell time of 30-60 seconds. Additionally, Renesas provides a soldering application note that provides more detailed guidance.
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Manufacturer Collaborated
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System Verified
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Community Approved
Sponsored
844003BGI-01LF Overview
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