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Product Detailed Parameters
- Description：IC AMP CLASS D STER 3.6W 30WLCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Class D
- Output Type：2-Channel (Stereo) with Stereo Headphones
- Max Output Power x Channels @ Load：3.6W x 2 @ 4Ohm; 40mW x 2 @ 16Ohm
- Voltage - Supply：2.5V ~ 3.6V
- Features：Depop, I2C, Short-Circuit and Thermal Protection, Shutdown, Volume Control
- Mounting Type：Surface Mount
- Supplier Device Package：30-WLCSP (2.96x2.46)
- Package / Case：30-WFBGA, WLCSP
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The SSM2804CBZ-R7 is an audio subsystem integrating a stereo Class-D speaker amplifier and a capless headphone driver. It features three single-ended inputs with optional differential mode, configurable via I2C. The Class-D section delivers up to 1.4 W per channel into 8 Ω loads at 5 V supply. The headphone output utilizes true ground Class-G technology for high efficiency. The device operates within a -40°C to +85°C temperature range and includes pop-and-click suppression, ALC, and EMI control.
Feature Summary
- Integrates filterless Class-D speaker amplifiers and high-efficiency capless headphone drivers in a single package.
- Features flexible input routing with three channels supporting PGA or boost modes and I2C-adjustable gain.
- Includes hardware-based headphone level limiting and automatic level control for speaker protection.
- Utilizes three-level Σ-Δ modulation to minimize EMI emissions without external filtering for short cables.
Applications
- Mobile phones
- Portable multimedia devices
Procurement Notes
Verify the specific suffix CBZ-R7 against the manufacturer's ordering guide to confirm the reel packaging configuration. Confirm current availability status as product lifecycles may change. Ensure the design supports the required I2C interface timing and voltage levels for AVDD and PVDD supplies during integration.
Selection Notes
Select this component when a compact solution combining both loudspeaker driving and headphone listening is required. It is suitable for designs needing independent volume control for speakers and headphones. Consider the WLCSP package constraints for PCB layout. Verify that the system power supply can support the peak currents required by the Class-D amplifier under load conditions.
Part Context
This part belongs to the SSM2804 family of audio subsystems from Analog Devices. It is designed to replace discrete amplifier solutions in space-constrained mobile applications. The device consolidates multiple audio functions, reducing bill of materials and board area compared to separate amplifier chips.
Replacement Considerations
Check for updated revisions or pin-compatible alternatives in the Analog Devices portfolio if this specific marking code is discontinued. Verify functional equivalence regarding I2C register maps if substituting with other audio subsystems.
FAQ
Does the SSM2804 require external output filters for the Class-D amplifier?
No, it uses a filterless modulation scheme relying on speaker inductance and natural filtering.
How is the headphone volume controlled?
Volume is adjusted via the I2C interface with a gain range from 0 dB to -75 dB in 32 steps.
