ak4648 AKM Semiconductor, Inc., ak4648 Datasheet

ak4648

Manufacturer Part Number

ak4648

Description

Stereo Codec With Mic/hp/spk-amp

Manufacturer

AKM Semiconductor, Inc.

Datasheet

1.AK4648.pdf (119 pages)

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The AK4648 is a stereo CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier, and

Speaker-Amplifier. The AK4648 features analog mixing circuits and PLL that allows easy interfacing in

mobile phone and portable A/V player designs. The AK4648 is available in a CSP (3.7mm x 3.8mm),

utilizing less board space than competitive offerings.

MS0625-E-01

1. Recording Function

2. Playback Function

3. Power Management

• 4 Stereo Inputs Selector

• Stereo Mic Input (Full-differential or Single-ended)

• Stereo Line Input

• MIC Amplifier (+32dB/+26dB/+20dB or 0dB)

• Digital ALC (Automatic Level Control)

• ADC Performance: S/(N+D): 83dB, DR, S/N: 86dB (MIC-Amp=+20dB)

• Wind-noise Reduction Filter

• Stereo Separation Emphasis

• Programmable EQ

• Digital De-emphasis Filter (tc=50/15μs, fs=32kHz, 44.1kHz, 48kHz)

• 5-Band Equalizer

• Soft Mute

• Digital Volume (+12dB ∼ −115.0dB, 0.5dB Step, Mute)

• Digital ALC (Automatic Level Control)

• Stereo Separation Emphasis

• Programmable EQ

• Stereo Line Output

• Stereo Headphone-Amp

• Stereo Speaker-Amp

• Analog Mixing: 4 Stereo Input

- Performance: S/(N+D): 88dB, S/N: 92dB

- Support Pseudo Cap-less and Single-ended modes

- Analog Volume: + 3dB ~ - 33dB, 3dB Step

- S/(N+D): 70dB@7.5mW, S/N: 90dB

- Output Power: 40mW@16Ω (HVDD=3.6V)

- Pop Noise Free at Power ON/OFF

- S/(N+D): 60dB @ 240mW, S/N: 90dB

- BTL

- Output Power: 820mW @ 8Ω, HVDD=3.6V, High Power Mono SPK Mode

- Pop Noise Free at Power ON/OFF

(+36dB ∼ −54dB, 0.375dB Step, Mute)

S/(N+D): 88dB, DR, S/N: 95dB (MIC-Amp=0dB)

GENERAL DESCRIPTION

Stereo CODEC with MIC/HP/SPK-AMP

62.5mW@16Ω (HVDD=4.5V)

1.6W @ 8Ω, HVDD=5V, High Power Mono SPK Mode

1.0W @ 8Ω, HVDD=4.5V, Stereo SPK Mode

1.3W @ 8Ω, HVDD=5V, Mono SPK Mode

640mW @ 8Ω, HVDD=3.6V, Stereo SPK & Mono SPK Mode

FEATURES

- 1 -

AK4648

[AK4648]

2007/06

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