RC32504A datasheet(13/100 Pages) RENESAS

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RC32504A Datasheet

R31DS0044EU0113 Rev.1.13

Aug 1, 2025

Page 13

3.3 Reference Clock Phase Jitter and Phase Noise

Table 6. Output Phase Jitter Characteristics[1][2]

[1] VDDXO = VDDA = VDDOx = 1.8V ±5%, GND = 0V, TA = -40°C to 85°C.

[2] Electrical parameters are ensured over the specified ambient operating temperature range, which is established when the device

is mounted in a test socket with maintained transverse airflow greater than 500lfpm. The device meets specifications after

thermal equilibrium has been reached under these conditions.

Symbol

Parameter

Test Condition

Typical

Maximum

Unit

tjit()

Phase Jitter, RMS (Random)[3]

[3] Characterized using a Rohde and Schwarz SMA100A overdriving the XTAL Interface.

10kHz to 20MHz

78.125MHz

Crystal[4];

Synthesizer

Mode

[4] APLL at 10.625GHz to allow for outputting common ETH/FC frequencies.

106.25MHz

100

125MHz

100

156.25MHz

100

212.5MHz

100

312.5MHz

100

tjit()

Phase Jitter, RMS (Random)[5]

[5] Characterized using a Rohde and Schwarz SMA100A overdriving the XTAL Interface.

10kHz to 20MHz

60MHz

Crystal[6];

JA Mode Locked

to 25MHz CLKIN

[6] APLL at 9.8304GHz for 245.76MHz, 491.52MHz and 983.04MHz. APLL at 10.3125GHz for 156.25MHz, 312.5MHz, and

322.265625MHz.

156.25MHz

105

130

245.76MHz

104

130

312.5MHz

101

130

322.265625MHz

104

130

491.52MHz

102

130

983.04MHz

101

130

tjit()

Phase Jitter, RMS (Random)[7]

[7] Characterized using a Rohde and Schwarz SMA100A overdriving the XTAL Interface.

10kHz to 20MHz

156.25MHz

Input[8];

Clock Generator

Mode

[8] Driven by output from ClockMatrix. APLL at 10GHz to allow for outputting common ETH frequencies.

125MHz

100

156.25MHz

100

312.5MHz

100

SSB(100k)

Single Sideband

Phase Noise

100kHz

156.25MHz input,

Clock Generator Mode;

All outputs enabled at 156.25MHz

-148

dBc/Hz

SSB(1M)

1MHz

-153

dBc/Hz

SSB(10M)

10MHz

-165

dBc/Hz

SSB(30M)

≥30MHz

-167

dBc/Hz

SSB(100)

Single Sideband

Phase Noise

100Hz

60MHz Crystal,

JA Mode with 25Hz loop bandwidth,

25MHz input from SMA-100;

All outputs enabled at 156.25MHz

-103

dBc/Hz

SSB(1k)

1kHz

-113

dBc/Hz

SSB(10k)

10kHz

-132

dBc/Hz

SSB(100k)

100kHz

-140

dBc/Hz

SSB(1M)

1MHz

-154

dBc/Hz

SSB(10M)

10MHz

-164

dBc/Hz

SSB(30M)

≥30MHz

-166

dBc/Hz

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