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AK4650 Datasheet, PDF (1/86 Pages) Asahi Kasei Microsystems – 16Bit ΔΣ CODEC with MIC/HP/SPK-AMP & TSC | |||
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[AK4650]
AK4650
16Bit ÎΣ CODEC with MIC/HP/SPK-AMP & TSC
GENERAL DESCRIPTION
The AK4650 targeted at PDA and other low-power, small size applications. It features a 16bit stereo
CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier, Speaker-Amplifier and Touch Screen
Controller. Input circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit. The
AK4650 is connected with ACâ97 controller (CPU) via AC-Link. The AK4650 is available in a very small
57pin BGA, utilizing less board space than competitive offerings.
FEATURES
1. Resolution: 16bits
2. Recording Function
⢠Mono Input (Single-ended or Differential Input)
⢠2 to 1 Selector (Internal and External MIC)
⢠MIC Power: 2 outputs (Internal and External MIC)
⢠1st MIC Amplifier: +20dB or 0dB
⢠2nd Amplifier with ALC: +27.5dB â¼ â8dB, 0.5dB Step
⢠ADC Performance (@MIC-Amp=+20dB, Single-ended):
S/(N+D): 79dB, DR, S/N: 83dB
⢠MIC Detection
3. Playback Function
⢠Digital De-emphasis Filter (tc=50/15μs, fs=32kHz, 44.1kHz, 48kHz)
⢠Digital Volume (0dB â¼ â63dB, 0.5dB Step, Mute)
⢠Bass Boost
⢠Mono Output
- Full-differential Output
- S/(N+D): 85dB, S/N: 95dB
- Analog Volume: +6dB â¼ â15dB, 3dB Step
⢠Headphone-Amp
- Output Power: 40mW@16Ω (HVDD=3.3V)
- S/(N+D): 60dB@10mW, S/N: 90dB
⢠Headphone Jack Detection
⢠Mono Speaker-Amp
- Output Power: 300mW@8Ω (HVDD=3.3V, ALC2=OFF)
- S/(N+D): 55dB@110mW, S/N: 90dB
- BTL Output
- ALC (Auto Level Control) circuit
⢠Mono Beep Input
⢠AUX Input
- Full-differential Input
- Analog Volume: +12dB â¼ â34.5dB, 1.5dB Step, Mute
⢠Stereo Line Input
- Single-ended Input
- Analog Volume: +12dB â¼ â34.5dB, 1.5dB Step, Mute
MS0502-E-01
-1-
2007/04
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