AK4213 Datasheet, PDF (1/38 Pages) Asahi Kasei Microsystems – Mono Class-D SPK-Amp with Stereo Cap-less HP-Amp

[AK4213]
AK4213
Mono Class-D SPK-Amp with Stereo Cap-less HP-Amp
GENERAL DESCRIPTION
The AK4213 is an audio mono class-D speaker amplifier with stereo cap-less headphone amplifier. The
AK4213 features analog mixing circuit that allow easy interfacing in mobile phone and portable A/V player
designs. The input circuit supports both of single-ended and differential modes, and headphone supports
stereo and mono modes. The speaker amplifier includes ALC (Automatic Level Control) circuit which is
able to stabilize each output sound levels. The AK4213 is available in CSP package (3.0mm x 3.0mm),
utilizing less board space than competitive offerings.
FEATURE
† Single-ended / Differential Input
† Analog Mixing Circuit
† Analog Input Volume: +10dB to –20dB, 2dB step
† µP Interface: I²C Bus (Ver1.0, 400 kHz Fast-Mode)
† Thermal Shutdown / Short Protection circuit
† Mono Class-D Speaker Amplifier:
- BTL output
- Output Power: 1.6W @ 8Ω, SVDD=5V
0.8W @ 8Ω, SVDD=3.6V
- THD+N: -65dB @ 8Ω, Po = 0.25W, SVDD=3.6V
- Output Noise Level: 85μVrms
- ALC (Automatic Level Control) Circuit
- Bypass Mode
- Pop Noise Free at Power-ON/OFF and Mute
- External filter-less
† Stereo Cap-less Headphone Amplifier:
- Mono / Stereo Mode
- Output Power: 64mW x 2ch @ 16Ω, SVDD=3.3V, THD+N=-40dB
- THD+N: -58dB @ 16Ω, Po=30mW, SVDD=3.3V
- Output Noise Level: 24μVrms
- Output Volume: +12dB to –50dB, 2dB Step
- Pop Noise Free at Power-ON/OFF and Mute
† Power Supply:
- Analog: 2.6V ∼ 3.6V
- Headphone Amplifier: 2.6V ∼ 3.6V
- Speaker Amplifier: 3.0V ∼ 5.5V
- Digital Interface: 1.6V ∼ 3.6V
† Ta: −40 ∼ 85°C
† Package: 29pin CSP (3.0mm x 3.0mm, 0.5mm pitch)
MS0949-E-01
-1-
2008/07