AK5701VN

Low Power 2ch ADC with ALC, MIC-Amp & PLL

  • Inquiry
  • Digi-Key
  • Evaluation Board Manual
  • Data Sheet

Description

The AK5701 features a 16-bit stereo ADC. Input circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit that is suitable for portable application with recording function. On-chip PLL supports base-band clock of mobile phone, therefore it is easy to connect with DSP. The AK5701 is available in a 24pin QFN, utilizing less board space than competitive offerings.

Key Features

1. Resolution: 16bits

2. Recording Function

- 2 Stereo Input Selector

- Full-differential or Single-ended Input

- MIC Amplifier (+30dB/+15dB or 0dB)

- Input Voltage: 1.8Vpp@VA=3.0V (= 0.6 x AVDD)

- ADC Performance: S/(N+D): 78dB, DR, S/N: 89dB@MGAIN=0dB

S/(N+D): 77dB, DR, S/N: 87dB@MGAIN=+15dB

S/(N+D): 72dB, DR, S/N: 77dB@MGAIN=+30dB

- Digital HPF for DC-offset cancellation (fc=3.4Hz@fs=44.1kHz)

- Digital ALC (Automatic Level Control)

(+36dB to -54dB, 0.375dB Step, Mute)

3. Sampling Rate:

- PLL Slave Mode (EXLRCK pin): 7.35kHz to 48kHz

- PLL Slave Mode (EXBCLK pin): 7.35kHz to 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 Slave Mode:

7.35kHz to 48kHz (256fs), 7.35kHz to 26kHz (512fs), 7.35kHz to 13kHz (1024fs)

4. PLL Input Clock:

- MCKI pin:

27MHz, 26MHz, 24MHz, 19.2MHz, 13.5MHz, 13MHz, 12.288MHz, 12MHz, 11.2896MHz

- EXLRCK pin: 1fs

- EXBCLK pin: 32fs/64fs

5. Master/Slave mode

6. Audio Interface Format: MSB First, 2’s compliment

- DSP Mode, 16bit MSB justified, I2S

7. µP I/F: 3-wire Serial

8. Power Supply:

- AVDD: 2.4 to 3.6V

- DVDD: 1.6 to 3.6V

9. Power Supply Current: 8mA

10. AK5701VN: Ta = -30 to 85°C

AK5701KN: Ta = -40 to 85°C

11. Package: 24pin QFN (4mm x 4mm)

>> Read more

Block Diagram

Block Diagram

Page Top

top