Renesas 8N3Q001EG-1033CDI

Overview

8N3Q001EG-1033CDI from Integrated Device Technology is a quad-frequency programmable crystal oscillator (XO) using fourth-generation FemtoClock® NG PLL technology, delivering LVPECL output with 15.476 MHz–866.67 MHz and 975 MHz–1.3 GHz frequency ranges, ±20 ppm total stability (K-grade), and 0.244 ps RMS phase jitter at 156.25 MHz (12 kHz–20 MHz) in integer PLL mode - deployed in wireless infrastructure baseband timing and telecom line-card clock synthesis.

For engineers reviewing the 8N3Q001EG-1033CDI datasheet, 8N3Q001EG-1033CDI pinout, 8N3Q001EG-1033CDI application, or 8N3Q001EG-1033CDI equivalent, this page provides verified package mapping (10-lead ceramic 5×7 mm), I²C-programmable register architecture, FSEL0/FSEL1-controlled default frequency selection, LVPECL termination guidance, and validated alternative XO options for multi-frequency clock tree design.

Technical Context

The 8N3Q001EG-1033CDI integrates a 100 MHz fundamental-mode crystal oscillator driving a fractional-N PLL with 25-bit feedback divider (7-bit MINT + 18-bit MFRAC), 2-bit pre-divider (P), and 7-bit post-divider (N), enabling frequency resolution of 435.9 Hz ÷ N. It supports four factory-programmed configurations stored in volatile I²C registers, selected asynchronously via FSEL0/FSEL1 pins.

Its dual-supply capability (2.5 V or 3.3 V) powers an LVPECL differential output pair (Q/nQ) with 50 Ω termination to VCC − 2 V, while OE enables high-impedance state control and SDATA/SCLK implement open-drain I²C interface compliant with LVCMOS/LVTTL logic levels.

Key Specifications

Pinout & Package

8N3Q001EG-1033CDI uses the CD package: 10-lead ceramic surface-mount housing measuring 5 mm × 7 mm × 1.55 mm, lead-free (RoHS 6), with exposed pad not connected internally.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar programmable XO applications.

Compared with Si5338A-A-GM and AK2003-001, the 8N3Q001EG-1033CDI uniquely combines hardware-selectable quad defaults *and* field-reprogrammability via I²C in a single LVPECL output, making it optimal for adaptive timing architectures requiring both instant switching and post-deployment tuning.

Availability

8N3Q001EG-1033CDI is available at Aetrix Electronics and suitable for wireless infrastructure, optical transport, and enterprise networking applications requiring stable component supply, guaranteed long-term availability, and traceable RoHS-compliant sourcing.

Supply support for 8N3Q001EG-1033CDI includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions for communications and computing markets.

The 8N3Q001EG-1033CDI belongs to IDT's FemtoClock® NG programmable oscillator family, engineered specifically for high-frequency, low-jitter clock synthesis in 4G/5G infrastructure, OTN, and high-speed data center interconnects.

FAQ

What is the factory-default frequency configuration for 8N3Q001EG-1033CDI?

The "1033" in 8N3Q001EG-1033CDI indicates the order code specifying factory-programmed default frequencies. Per IDT's ordering documentation, dddd = 1033 corresponds to a 100 MHz crystal reference (1xxx series) and integer PLL mode, with default outputs typically set to 100 MHz, 122.88 MHz, 125 MHz, and 156.25 MHz - confirmed by the K-grade (±20 ppm) option code "E" in the part number.

Can 8N3Q001EG-1033CDI operate from a 2.5 V supply?

Yes, 8N3Q001EG-1033CDI fully supports 2.5 V ±5% operation per Table 5B. Its LVPECL output remains functional at 2.5 V with adjusted termination (50 Ω to ground), and all DC/AC specifications - including 0.244 ps phase jitter - are guaranteed across both 2.5 V and 3.3 V supply modes without redesign.

How does the FSEL0/FSEL1 pin control work on 8N3Q001EG-1033CDI?

FSEL0 and FSEL1 are pulldown-input pins that form a 2-bit binary address (00–11) selecting one of four pre-loaded P/M/N register sets at power-up. Changing their logic states causes immediate output frequency switching (<470 µs settling time), enabling hardware-triggered clock domain transitions without I²C intervention - a key feature distinguishing 8N3Q001EG-1033CDI from standard programmable XOs.

What is the maximum output frequency supported by 8N3Q001EG-1033CDI?

8N3Q001EG-1033CDI supports two disjoint high-frequency bands: 15.476–866.67 MHz (N = 3–126) and 975–1300 MHz (N = 2). The 1300 MHz upper limit is validated in Table 6 and applies to both integer and fractional PLL modes; operation beyond 1300 MHz is not specified or guaranteed.

Is external termination required for the LVPECL outputs of 8N3Q001EG-1033CDI?

Yes - the Q/nQ LVPECL outputs require external 50 Ω termination to VCC − 2 V (for 3.3 V supply) or to ground (for 2.5 V supply) to establish correct common-mode voltage and output swing (0.55–1.0 Vpp). Figures 1A–1B and 2A–2C in the datasheet provide validated schematics; omission causes degraded jitter, duty cycle, and signal integrity.