WM8962ECS/R - 24-Bit Stereo Audio Codec | Cirrus Logic
부품 번호: WM8962ECS/R ✓ 활성WM8962ECS/R 개요
An audio codec is an integrated circuit that converts digital audio data into analog signals and analog audio inputs into digital PCM data. It sits between a digital audio host, such as a microprocessor or application processor, and external audio transducers. A typical stereo codec also integrates programmable gain, filters, headphone-output circuitry, and a digital control interface to reduce the number of discrete components required in portable equipment.
The WM8962ECS/R provides a 24-bit stereo interface and supports both I2C and SPI control. Its verified 98 dB ADC and 94 dB DAC figures establish the advertised dynamic-range performance for the conversion sections. The ultra-low-power codec architecture targets battery-powered audio equipment where conversion performance, standby consumption, and board area are all important constraints.
Its integrated charge pump creates a ground-referenced headphone output, eliminating the need for DC-blocking capacitors on the headphone outputs. The design also uses Cirrus Logic Class-W amplifier techniques and a dual-mode charge-pump architecture to optimize efficiency and power consumption during playback. A DC servo reduces output ground offsets, improving headphone-output behavior and simplifying the external signal path.
Typical uses include smartphone and tablet audio paths, portable media players, connected audio accessories, digital personal audio devices, and compact consumer equipment with analog headphone outputs. The combination of a 49-ball WLCSP, integrated stereo converters, flexible digital control, and capacitor-free headphone outputs is especially useful when PCB area is constrained.
Designers should verify the complete pin assignment, exposed-ball configuration, supported digital audio formats, clocking requirements, and analog routing against the manufacturer datasheet before layout. Decoupling, analog grounding, headphone routing, and charge-pump layout remain critical because this highly integrated device combines sensitive converters, digital interfaces, and switching amplification on one small package.
This page combines verified distributor availability, exact package information, converter-performance figures, and manufacturer-described charge-pump and Class-W features. It also records where complete specifications are unavailable, preventing unsupported electrical values from being presented as engineering facts.
드롭인 대체품: WM8962ECS/R — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청WM8962ECS/R 최대 정격 & 전기적 특성
| Product Type | Stereo audio codec |
| Converter Resolution | 24 bit |
| ADC Dynamic Range | 98 dB |
| DAC Dynamic Range | 94 dB |
| Control Interface | I2C and SPI |
| 패키지 | 49-ball WLCSP, 3.59 mm x 3.98 mm |
| Headphone Output | Ground-referenced output |
| DC-Blocking Capacitors | Not required on headphone outputs |
| Headphone Amplifier Technology | Wolfson Class-W |
| Charge-Pump Architecture | Dual-mode integrated charge pump |
| DC Offset Control | Integrated DC servo |
| Power Class | Ultra-low-power codec |
| Audio Channels | Stereo |
| 실장 유형 | Surface-mount WLCSP |
WM8962ECS/R 49-ball wlcsp, 3.59 mm x 3.98 mm 핀 구성 가이드
WM8962ECS/R(49-ball wlcsp, 3.59 mm x 3.98 mm 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: WM8962ECS/R.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
WM8962ECS/R 적합 용도: 6 애플리케이션s: Smartphone Stereo Audio, Portable Media Player, Connected Audio Accessory, Digital Personal Audio Player, Compact Analog Audio Interface, Low-Power Audio Accessory.
Smartphone Stereo Audio
The WM8962ECS/R fits smartphone and tablet audio paths where a 24-bit stereo codec must combine conversion, headphone drive, and compact placement. Its 98 dB ADC and 94 dB DAC provide the documented conversion dynamic range, while the 49-ball WLCSP occupies only 3.59 mm by 3.98 mm. The host processor can configure the codec through I2C or SPI, and the integrated ground-referenced Class-W output eliminates the usual DC-blocking capacitors from the headphone path. The main engineering constraints are fast clocking, sensitive analog grounding, clean supply decoupling, and careful WLCSP assembly.
Portable Media Player
A portable media player can use the WM8962ECS/R as the central stereo audio conversion and output stage. The ultra-low-power codec architecture is relevant to battery-operated playback equipment, while the documented 98 dB ADC and 94 dB DAC support high-resolution source material and microphone or line input. The integrated Class-W headphone amplifier and charge pump reduce the external component count compared with a discrete output network. Designers should still confirm active current, standby current, supported sample rates, and thermal behavior for the exact playback mode before finalizing the power budget.
Connected Audio Accessory
The WM8962ECS/R is appropriate for a connected speaker or headphone accessory that must accept digital audio from a wireless or application processor. I2C and SPI control provide two host-interface options, and the stereo codec architecture supports left and right signal conversion in one package. The 3.59 mm by 3.98 mm 49-ball WLCSP helps preserve board area in compact accessories. For battery-powered products, the absence of headphone-output DC-blocking capacitors also reduces board area, although the complete charger, codec supply, amplifier, and load configuration must be evaluated as one power domain.
Digital Personal Audio Player
For a dedicated digital audio player, the WM8962ECS/R provides a compact path from digital audio data to analog stereo output. Its 24-bit conversion interface, 94 dB DAC rating, and integrated headphone stage suit designs that prioritize a small component count. The ground-referenced Class-W output avoids output DC-blocking capacitors and uses a DC servo to reduce offset behavior. A production design should validate the supported master-clock and audio-interface formats, confirm the DAC operating mode, and assess the headphone load against the manufacturer's output-power limits.
Compact Analog Audio Interface
The WM8962ECS/R can serve as the stereo conversion element in a compact analog audio interface when a host supplies digital PCM streams and the system requires headphone output. The 98 dB ADC supports analog line or microphone-oriented input paths, while the 94 dB DAC and integrated amplifier cover the playback side. Because the device includes a switching Class-W output stage, board layout must separate sensitive converter routes from headphone and charge-pump currents. Verify whether the available inputs support the intended source level and whether microphone biasing or other analog conditioning is required.
Low-Power Audio Accessory
The WM8962ECS/R is suited to low-power portable accessories that need stereo conversion without a discrete headphone amplifier and output capacitor network. Its ultra-low-power positioning is the principal efficiency benefit, while the 49-ball WLCSP supports compact assembly. The manufacturer-described dual-mode charge pump is intended to optimize efficiency and power consumption during playback, and the DC servo improves output ground-offset behavior. Actual battery-life improvement cannot be inferred without workload, sample-rate, output-voltage, and headphone-impedance data, so engineers should compare the complete operating modes from the datasheet.
엔지니어링 참조 데이터: WM8962ECS/R — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Package | 49-ball WLCSP, 3.59 mm x 3.98 mm |
| Brand | Cirrus Logic Inc. |
| Converter Resolution | 24 bit |
| ADC Dynamic Range | 98 dB |
| DAC Dynamic Range | 94 dB |
| Control Interface | I2C and SPI |
| Headphone Output | Ground-referenced Class-W output |
| DC-Blocking Capacitors | Not required on headphone outputs |
| Power Class | Ultra-low-power stereo audio codec |
| Price | Quotation required; no exact price in supplied verified data |
주요 차별점
- Ground-referenced headphone output (vs No verified drop-in alternative was identified)
- High-resolution conversion in one device (vs No verified drop-in alternative was identified)
- Compact integrated package (vs No verified drop-in alternative was identified)
설계 노트
Treat the 49-ball WLCSP as a mixed-signal layout problem. Follow the manufacturer placement and routing guidance for the codec, charge pump, analog inputs, headphone outputs, clock lines, and digital interface. Place decoupling components at the intended supply pins, keep sensitive converter routes compact, and maintain continuous ground references under analog and digital bonding areas. Confirm exposed-ball and assembly requirements with the package drawing before releasing PCB artwork.
The integrated dual-mode charge pump and Class-W output stage can inject switching-related noise into nearby analog circuitry. Route headphone outputs away from microphone and line inputs, avoid sharing narrow return paths with sensitive signals, and observe the datasheet's recommended grounding topology. Decoupling alone should not replace correct current-loop management, and EMI validation should include the intended headset cable, charger, display, and wireless subsystem operating simultaneously.
Do not infer full pin compatibility, supply limits, sampling rates, or power performance from the distributor summaries. The verified information establishes the 49-ball package, 24-bit resolution, I2C/SPI control, 98 dB ADC, 94 dB DAC, and charge-pump headphone architecture, but it does not provide the complete electrical tables or ball map. Check the manufacturer datasheet for clock ratios, supported audio formats, analog input ranges, output limits, and absolute maximum ratings before schematic signoff.
규정 준수 정보
The supplied verified results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable to this commercial audio codec based on the available product description.
