ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC CODEC STEREO ULP 36WCSP
- Series：-
- Mfr：Cirrus Logic Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Stereo Audio
- Data Interface：-
- Resolution (Bits)：-
- Sigma Delta：Yes
- S/N Ratio, ADCs / DACs (db) Typ：91 / 96
- Dynamic Range, ADCs / DACs (db) Typ：-
- Voltage - Supply, Analog：1.71V ~ 2V
- Voltage - Supply, Digital：1.42V ~ 3.6V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：36-UFBGA, WLCSP
- Supplier Device Package：36-WCSP (2.65x2.53)
- Grade：-
- Qualification：-
Download product information
Overview
The WM8904ECS/R is a high-performance ultra-low power stereo CODEC optimized for portable audio applications. It features stereo ground-referenced headphone amplifiers using Wolfson Class-W techniques with a dual-mode charge pump architecture to optimize efficiency. The device supports standard sample rates from 8kHz to 96kHz and operates directly from a single 1.8V switched supply, with the digital core operating from a 1.0V supply. Key electrical parameters include DAC SNR of 96dB typical (THD -86dB) and ADC SNR of 91dB typical (THD -80dB). Quiescent power consumption is 3.0mW for DAC to headphone playback and 2.4mW for analogue bypass playback. It is housed in a 36-ball W-CSP package.
Feature Summary
- Ground-referenced Class-W headphone and line outputs eliminate AC coupling capacitors and include common mode feedback paths to reject ground noise.
- Integrated control write sequencer minimizes pops and clicks during start-up and shutdown via SilentSwitch technology.
- ReTune Mobile 5-band parametric equalizer with fully programmable coefficients optimizes speaker characteristics.
- Digital Dynamic Range Controller provides compression and level control with anti-clip and quick release features.
Applications
- Portable multimedia players
- Multimedia handsets
- Handheld gaming devices
- Wireless headsets
- Mobile internet devices
Procurement Notes
Verify the specific ordering suffix against manufacturer documentation to confirm package type and reel configuration. Ensure compatibility with system voltage requirements, as the digital core requires a separate 1.0V supply while the analog section operates from 1.8V. Confirm moisture sensitivity levels and soldering temperature limits before assembly.
Selection Notes
Select this component for designs requiring low quiescent power consumption and integrated Class-W output drivers. Consider the 36-ball W-CSP package for compact form factors. Evaluate the need for ReTune Mobile equalization and DRC features if speaker optimization or dynamic range control is required for the target application.
Part Context
The WM8904 belongs to Cirrus Logic's portfolio of ultra-low power audio codecs designed for mobile and portable electronics. It integrates stereo input/output capabilities with advanced digital signal processing features, targeting applications where power efficiency and audio quality are critical constraints.
Replacement Considerations
Consult official substitution guides for compatible alternatives. Verify pinout compatibility and register map alignment when considering cross-model replacements within the same product family.
