Ametek Electronics

The Cirrus Logic CS4272-CZZ is a 24-bit stereo audio codec SMD IC in a 28-pin TSSOP package. It integrates:

• 2-channel ADC + DAC
• 24-bit audio resolution
• Up to 192 kHz sampling
• PCM / I2S serial audio interface
• Surface-mount (SMD) package

Typical applications:

• Professional audio equipment
• Embedded audio systems
• Industrial audio interfaces
• DAC/ADC boards
• Synthesizers and audio DSP projects

Key specs:

• Package: TSSOP-28
• Dynamic range: ~114 dB
• Supply: ~2.37 V to 5.25 V
• Stereo codec with Sigma-Delta architectur

Summary of Features

• Fully compliant to ISO11898-2 (2016)
• CAN Partial Networking (CAN PN) and CAN FD up to 2 MBit/s
• Wide common mode range for electromagnetic immunity (EMI)
• Very low electromagnetic emission (EME)
• Excellent ESD robustness, ± 8 kV according to IEC61000-4-2
• Independent supply concept on VCC and VBAT pins
• Short circuit proof to GND and to battery
• Overtemperature protection
• Wake-up frame detection with CAN FD tolerant feature
• Local wake-up input
• SPI clock frequency up to 4 MHz
• Green Product (RoHS compliant)
• AEC Qualified

The ADM2483 is an isolated RS-485 transceiver from Analog Devices designed for high-speed communication in industrial environments. It features signal and power isolation, making it ideal for applications requiring robust, noise-immune data transmission.

• Isolated RS-485 transceiver with integrated iCoupler® technology
• 3.3V or 5V operation
• High-speed data rate: Up to 500 kbps
• True fail-safe receiver
• ±15 kV ESD protection on bus pins
• 50 kV/µs transient immunity
• Thermally enhanced 16-lead SOIC (SMD) package
• Supports up to 256 nodes on a bus

• Industrial fieldbus communication
• PLCs (Programmable Logic Controllers)
• Motor control and automation systems
• Isolated data interfaces

IM800 is a complete Quad-band GSM/GPRS solution in a SMT type which can be embedded in the customer applications.

SIM800 support Quad-band 850/900/1800/1900MHz, it can transmit Voice, SMS and data information with low power consumption. With tiny size of 24*24*3mm, it can fit into slim and compact demands of customer design. Featuring Bluetooth and Embedded AT, it allows total cost savings and fast time-to-market for customer applications.

• Manufacturer: Texas Instruments
• Package type: QFP (Quad Flat Package)
• RoHS compliant / lead-free versions exist.
• It also appears in some Yamaha Corporation AV receiver spare parts, suggesting it may be a custom DSP/audio-processing IC used in Yamaha equipment.

Unfortunately, there is no publicly available full datasheet/specification for this exact code, which usually means:

• it is an OEM/custom-marked IC,
• or an internal TI/Yamaha production ASIC/DSP.

One source specifically lists it as:

“Yamaha IC - IC D80YK113DPTP4 RX-V673ML”

So this chip is likely related to:

• Yamaha AV receivers,
• digital audio processing,
• HDMI/audio DSP/control circuitry.

If you want, I can also help identify:

• the exact Yamaha board/device it belongs to,
• pin compatibility,
• replacement options,
• nearby equivalent ICs,
• or how to test whether the IC is faulty.