Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tray |
| Part Status | Obsolete |
| Type | Audio |
| Resolution(Bits) | 24 b |
| Number of AD Cs / DA Cs | 1 / 1 |
| Sigma Delta | Yes |
| S / N Ratio AD Cs / DA Cs(db)Typ | 94 / 98 |
| Voltage - Supply, Analog | 2.5V ~ 3.6V |
| Voltage - Supply, Digital | 1.71V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Tổng quan
Description
WM8974CGEFL/V is a Wolfson (now Cirrus Logic) 24‑bit stereo CODEC. It integrates two ADCs and two DACs, a headphone driver, microphone bias and line‑in/line‑out paths, plus a flexible digital interface and control bus. The device supports standard PCM/I2S‑style digital audio formats and is typically controlled over a two‑wire I2C bus to set volume, routing, power modes, and other options. It’s designed for portable and embedded audio applications such as handheld players, docking stations, or multimedia devices seeking compact, low‑power, high‑quality audio processing.
The suffix CGEFL/V denotes the package and RoHS/lead‑free variant (package code and lead‑free temperature/production option). For exact pinout, rail voltages, register map, and recommended circuit connections, consult the WM8974 datasheet and evaluation‑board/app notes.
The suffix CGEFL/V denotes the package and RoHS/lead‑free variant (package code and lead‑free temperature/production option). For exact pinout, rail voltages, register map, and recommended circuit connections, consult the WM8974 datasheet and evaluation‑board/app notes.
Equivalent
Close/alternative audio CODECs to the WM8974CGEFL/V include: Cirrus Logic WM8978 and WM8960; Wolfson (Cirrus) WM8731; Texas Instruments TLV320AIC23B and TLV320AIC3254; Analog Devices ADAU1761 / ADAU1701. These are functional equivalents (stereo ADC/DAC with headphone drivers) but not necessarily pin‑for‑pin replacements — verify package, pinout, power rails, interfaces and firmware support before substituting.
Features
Key features of WM8974CGEFL/V (Wolfson):
- 24-bit stereo ADC and DAC with high dynamic range
- Integrated headphone driver; stereo line-out
- Mic input with bias and programmable gain
- Analog line-in/mic-in paths; programmable boost
- Digital audio interface: I2S, Left-Justified, Right-Justified, PCM
- On-chip PLL and flexible master clock (MCLK) support
- Digital volume control, mute/soft-mute for DAC/ADC
- 3D stereo imaging enhancement
- Low-power operation with various power-down modes
- Internal references and bias generators (minimal external circuitry)
- Package: 28-pin QFN (CGEFL/V variants; lead-free options)
Typical application: mobile/embedded audio devices, portable music players, handheld electronics.
- 24-bit stereo ADC and DAC with high dynamic range
- Integrated headphone driver; stereo line-out
- Mic input with bias and programmable gain
- Analog line-in/mic-in paths; programmable boost
- Digital audio interface: I2S, Left-Justified, Right-Justified, PCM
- On-chip PLL and flexible master clock (MCLK) support
- Digital volume control, mute/soft-mute for DAC/ADC
- 3D stereo imaging enhancement
- Low-power operation with various power-down modes
- Internal references and bias generators (minimal external circuitry)
- Package: 28-pin QFN (CGEFL/V variants; lead-free options)
Typical application: mobile/embedded audio devices, portable music players, handheld electronics.
Pinout
- Pin count: 28 pins
- Function: WM8974CGEFL/V is a low-power stereo audio CODEC with built-in DAC/ADC, headphone driver, mic/line inputs and line/output, and supports digital audio interfaces (I2S/PCM). Suitable for portable devices.
- Function: WM8974CGEFL/V is a low-power stereo audio CODEC with built-in DAC/ADC, headphone driver, mic/line inputs and line/output, and supports digital audio interfaces (I2S/PCM). Suitable for portable devices.
Manufacturer
The WM8974CGEFL/V is a product of Wolfson Microelectronics, which is now part of Cirrus Logic following Cirrus’s 2014 acquisition. They are a fabless semiconductor company that designs mixed-signal/audio integrated circuits (audio CODECs, ADCs/DACs, DSPs) for consumer, mobile and automotive electronics.
Application
WM8974CGEFL/V is a low-power stereo CODEC with ADC/DAC and headphone driver. Common applications include:
- Mobile and portable devices: smartphones, tablets, portable media players, handheld gaming devices.
- Audio accessories and peripherals: headsets, docking stations, USB audio adapters, Bluetooth dongles.
- Home/consumer electronics: smart speakers, digital TVs/set-top boxes, portable speakers, multimedia players.
- Embedded/enterprise: VoIP phones, conference systems, embedded audio in IoT devices, voice recorders.
- Mobile and portable devices: smartphones, tablets, portable media players, handheld gaming devices.
- Audio accessories and peripherals: headsets, docking stations, USB audio adapters, Bluetooth dongles.
- Home/consumer electronics: smart speakers, digital TVs/set-top boxes, portable speakers, multimedia players.
- Embedded/enterprise: VoIP phones, conference systems, embedded audio in IoT devices, voice recorders.
Package
I don’t have the WM8974CGEFL/V datasheet available here. May I look it up and confirm the exact package type for you?
