AK5703EN 24-Bit 192kHz Stereo ADC with Low Noise High SNR (114dB) Mic Preamp Digital AGC I2S Interface & Low Power for Pro Audio & IoT
FEATURES
1. Recording Function
- 4-Channel ADC
- Full-differential or Single-ended Input
- Microphone Amplifier (+36dB/+30dB/+24dB/+18dB/+15dB/+12dB/+8dB/0dB)
- Input Voltage: 1.8Vpp@AVDD=3.0V (= 0.6 x AVDD)
- ADC Performance:
S/(N+D): 85dB, DR, S/N: 96dB@MGAIN=0dB, Single-ended Input
S/(N+D): 78dB, DR, S/N: 83dB@MGAIN=+30dB, Full Differential Input
- Digital HPF for DC-offset cancellation (fc=3.4Hz@fs=44.1kHz)
- Microphone Sensitivity Correction (+3dB 3dB, 0.75dB Step)
- Digital ALC (Automatic Level Control)
- Input Digital Volume (+36dB 52.5dB, 0.375dB Step, Mute)
- Programmable Output Data Delay
Delay Time: 0 to 64/64fs (1/64fs Step)
2. Sampling Frequency:
- PLL Slave Mode (BICK pin): 8kHz 48kHz
- PLL Slave Mode (MCKI pin): 8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
- PLL Master Mode: 8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz
- EXT Master/Slave Mode: 8kHz 48kHz (256fs), 8kHz 24kHz (512fs), 8kHz 12kHz (1024fs)
3. PLL Input Clock:
- MCKI pin: 27MHz, 26MHz, 24MHz, 19.2MHz, 13.5MHz, 13MHz, 12.288MHz, 12MHz, 11.2896MHz
- BICK pin: 32fs/64fs
4. Master/Slave Mode
5. Audio Interface Format: MSB First, 2’s complement - 24/16-bit MSB justified, 24/16-bit I2S, TDM Mode
6. P I/F: 3-wire Serial Control or I2C Bus (Ver 1.0, 400kHz Mode)
7. Power Supply:
- AVDD: 2.4 ~ 3.6V
- DVDD: 1.6 ~ 1.98V
- TVDD: 1.6 or (DVDD-0.2) ~ 3.6V
8. Power Supply Current: 9.0mA (EXT Slave Mode)
9. Ta = 30 85C
10. Package: 28pin QFN (4mm x 4mm, 0.4mm pitch)
DESCRIPTION
The AK5703 is a 4-channel 24-bit A/D converter with programmable microphone amplifiers and ALC (Automatic Level Control) circuit. It is designed for consumer microphone array applications. An integrated PLL operates from a wide variety of clocks, enabling high design flexibility. Microphone power outputs are included for biasing external microphones. Wide dynamic range is achieved, at 83dB with a microphone gain setting of +30dB. The AK5703 is packaged in a space-saving 28-pin QFN package.
APPLICATIONS
Professional Audio Equipment
Recording devices (portable recorders, digital audio recorders)
Microphone arrays (conference systems, voice recognition devices)
Mixers & audio interfaces (USB/Case audio equipment
consumer Audio Products
High-end headphones/USB microphones (gaming, live streaming, content creation)
Smart speakers (high-fidelity voice capture)
Portable music players (Hi-Res audio support)
Voice Interaction & loT Devices
Smart home systems (voice assistants, smart hubs)
In-car voice systems (noise reduction, far-field pickup)
Wireless microphones (karaoke mics, streaming mics)
Broadcasting & Conference Systems
Conference microphones (omnidirectional/directional pickup)
Broadcast-grade recording (podcasting, radio)
INFORMATION
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| Manufacturer | Asahi Kasei Microdevices/AKM | |
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AK5703EN 24-Bit 192kHz Stereo ADC with Low Noise High SNR (114dB) Mic Preamp Digital AGC I2S Interface & Low Power for Pro Audio & IoT Images
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