Infineon Technologies CY22800FXC-033A

Overview

CY22800FXC-033A from Cypress Semiconductor is a field-programmable, reprogrammable (up to 100×) universal clock generator configured as an audio clock synthesizer for HDTV and STB applications supporting 256× oversampling (256fs). It accepts a 27 MHz crystal or external reference input and delivers three synchronized outputs: CLKA at (32 kHz, 44.1 kHz, 48 kHz) × 256, CLKB at 27 MHz, and supports no spread spectrum or VCXO modulation. It operates at 3.3 V and is housed in an 8-pin SOIC package.

For engineers reviewing the CY22800FXC-033A datasheet, CY22800FXC-033A pinout, CY22800FXC-033A application, or CY22800FXC-033A equivalent, this device serves as a dedicated audio sample-rate clock generator requiring precise integer-based multiplication of low-frequency audio base rates with stable 27 MHz system synchronization - critical for HDMI audio, SPDIF, and multi-channel DAC/ADC timing in broadcast-grade consumer electronics.

Technical Context

The CY22800FXC-033A implements Cypress's proprietary PLL architecture optimized for low-jitter audio clock synthesis, with fixed configuration code -033A specifying exact frequency relationships: CLKA = {32 kHz, 44.1 kHz, 48 kHz} × 256 = {8.192 MHz, 11.2896 MHz, 12.288 MHz}, and CLKB = 27 MHz reference output. Input flexibility includes 27 MHz crystal or CLKIN, with no VCXO or spread-spectrum enabled per Table 2.

All outputs derive from a single PLL core with deterministic phase alignment between CLKA and CLKB; the device uses internal dividers/multipliers without fractional-N synthesis, ensuring jitter performance suitable for 24-bit/192-kSPS audio paths. Pin functionality is static for this configuration: FS0/VCXO acts as frequency select only, not analog control, and CLKC is disabled or grounded per pin definition table.

Key Specifications

Pinout & Package

8-pin SOIC package with standard JEDEC MS-012AC footprint; 1.27 mm pitch, 5.0 mm × 4.0 mm body size, 1.75 mm max height.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar audio clock generation applications.

Compared with Si5338A-A-GM and ICS9FGP108B, the CY22800FXC-033A uniquely balances factory-optimized audio timing, field reprogrammability, and minimal footprint - making it ideal for HDTV/STB platforms needing rapid audio standard validation without redesign.

Availability

CY22800FXC-033A is available at Aetrix Electronics and suitable for HDTV audio subsystems, STB digital audio processing, HDMI transmitter timing, and multi-channel DAC synchronization requiring stable component supply and long-term manufacturability.

Supply support for CY22800FXC-033A 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance mixed-signal ICs for timing, connectivity, and programmable systems, with global manufacturing and quality certifications including ISO 9001 and AEC-Q200.

The CY22800 product line was developed specifically for consumer electronics clock consolidation - enabling single-device replacement of multiple crystals and oscillators in HDTV, STB, and digital media players while meeting stringent EMI and jitter requirements.

FAQ

What audio sample rates does CY22800FXC-033A support?

The CY22800FXC-033A supports three fixed base rates: 32 kHz, 44.1 kHz, and 48 kHz, each multiplied by exactly 256 to generate CLKA outputs of 8.192 MHz, 11.2896 MHz, and 12.288 MHz respectively. These correspond to standard digital audio formats including CD, DVD-Audio, and Blu-ray audio, with no software or register configuration needed - selection is done via the FS0 pin state.

Can CLKB be used as a standalone 27 MHz clock source?

Yes. CLKB delivers a clean, buffered 27 MHz output derived directly from the XIN input with minimal added jitter (<1 ps RMS typical), making it suitable as a primary system clock for HDMI PHYs, video encoders, or microcontrollers. The output drive strength meets LVCMOS specifications and supports fanout to up to four 10 pF loads without external buffering.

Is the CY22800FXC-033A pin-compatible with other CY22800 variants?

Yes - all CY22800 devices share identical 8-pin SOIC packaging and pinout. However, function mapping (e.g., FS0/VCXO behavior, CLKC usage) varies by configuration code. For CY22800FXC-033A, CLKC is designated as VSS and must be grounded; substituting another variant without verifying pin function changes may cause malfunction or damage.

Does CY22800FXC-033A require external programming hardware?

Only for initial configuration or field updates. The device ships preprogrammed with code -033A and operates immediately upon power-up with no external interface required. Reprogramming uses the CY36800 USB dongle and Cypress-provided software - no JTAG or SWD interface is present, and the device functions autonomously once programmed.