The AK4955 is a 24bit stereo CODEC with a microphone amplifier, speaker amplifier, video amplifier, LDO, and DSP. The input circuits include a microphone amplifier and the output circuits include a speaker amplifier. It is suitable for portable application with recording/playback function. A one channel composite In/Out video amplifier is also integrated. Th.
1. Recording Functions
• Stereo Single-ended input with two Selectors
• MIC Amplifier (+24dB/+21dB/+18dB/+16dB/+14dB/+11dB/+8dB/+5dB/0dB)
• Digital ALC (Automatic Level Control)
(Setting Range: +36dB ∼ −54dB, 0.375dB Step)
• ADC Performance: S/(N+D): 81dB, DR, S/N: 88dB (MIC-Amp=+18dB)
S/(N+D): 82dB, DR, S/N: 9.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | AK4950 |
AKM |
24bit Stereo CODEC | |
2 | AK4951 |
AKM |
24bit Stereo CODEC | |
3 | AK4951A |
AKM |
24bit Stereo CODEC | |
4 | AK4953A |
AKM |
24bit Stereo CODEC | |
5 | AK4954A |
AKM |
32bit Stereo CODEC | |
6 | AK4958 |
AKM |
24bit Stereo CODEC | |
7 | AK491024G |
ACCUTEK |
1048576 Word x 9 Bit CMOS Dynamic Random Access Memory | |
8 | AK491024S |
ACCUTEK |
1048576 Word x 9 Bit CMOS Dynamic Random Access Memory | |
9 | AK4940 |
AKM |
24-bit Mono CODEC | |
10 | AK4961 |
AKM |
Low-Power CODEC | |
11 | AK4962 |
AKM |
Low-Power CODEC | |
12 | AK4101A |
Asahi Kasei Microsystems |
Quad Outputs 192kHz 24-Bit DIT |