产地日本
功能ADC DAC DSP CODEC
品质HIFI音质
运用高端音响
品类音频芯片
AK4377 HiFi Headphone DAC
■ Block Diagram ■ Key Features
■ Development Schedule (CY)
Now
□ Upgrading DAC/Headphone Amplifier Performance
- THD+N: -109 dB @ 16ohm, Po = 25mW
- Dynamic Range: 118 dB
- S/N: 128 dB @ Po = 25mW
- Power Consumption: 60mW
□ Low Power Mode for Saving Battery during Phone Call
- Power Consumption: 20mW
□ Digital Audio interface
- Master/Slave mode
- Sampling Frequency: 8 k to 768 kHz
- I/F Format: 32/24/16-bit I2S/MSB justified
- DSD Support by DoP
□ Headphone Amplifier Output pins Comply
with IEC61000-4-2 Level 4 ESD Protection
□ Headphone Amplifier Output pins EOS Immunity:
DC +9V (via External Resistance 15ohm)
□ Small Package
- 3.082 x 2.893 mm2 36-pin WLCSP
- Backward compatible with AK4376/A
AK4528VM
AK4556VT
AK4558EN
AK4613VQ
AK4616VQ
AK4619VN

Specification summary of AK5704
Low Power/High SNR 4-ch ADC
- fs ~192kHz
- 9mW@2ch
- SNR 102dB
□ Very Low Power
Analog Voice Activity Detector
□ Digital MIC Interface (4-ch)
□ Digital Audio Interface
- TDM mode
- Cascade connection (max 16-ch)
□ Mic Sensitivity Adjustment
□ Delay Control
□ Programmable Filter
- HPF/LPF
- 5-band EQ (Notch)
- ALC
- DRC
□ PLL
□ Control Interface
- I2C-bus
□ Package: 40-pin WLCSP

AK4621EF
AK4627VQ
AK4628AVQ
AK4633VN
AK4634EN
AK4637EN
AK4637VN
AK4678ECB
AK4695ECB
AK4940VN
AK4951AEN
AK4953AEN
AK4954AEN
AK4957EN
AK4958EG

DSP+CODEC AK7755EN
■ Block Diagram ■ Key Features
■ Applications and Target Customers
■ Benefits
■ Product Status (CY)
ES Available
MP Available
Wireless Speaker / Docking Station
Hands Free System / Door phone
□ Programmable DSP 2560step @48kHz processing speed
□ 3ch ADC S/N : 102dB
□ 2ch DAC S/N : 106dB
□ Differential/Single-ended Inputs MIC-Amp
□ Digital MIC Input
□ Single-ended Lineout
□ Analog DRC (Dynamic Range Control)
□ Internal PLL, LDO
□ EEPROM Boot Function (4MAT Selectable)
□ SPI(7MHz), I²C-bus(400kHz Fast-Mode)
□ 36pin QFN (6mm x 6mm)
□ Configurable DSP for Audio/HF Systems
□ Stand-alone Operation from EEPROM
□ AKM’s Unique Full Duplex Hands-free Algorithm
(Wideband Speech)
□ Power management mode to prolong the battery life
Part Number
AK4940VN
Number of Channels (AD)
1
Number of Channels (DA)
1
Bits [bit]
24
S/N (AD) [dB]
90
S/N (DA) [dB]
90
THD+N (AD) [dB]
-80
THD+N (DA) [dB]
-80
Power Supply Voltage (MIN.) [V]
3
Power Supply Voltage (TYP.) [V]
Power Supply Voltage (MAX.) [V]
3.6
Microphone Amplifier
Yes
Speaker Amplifier
Other
Analog Direct Path, Automotive grade
Operating Temperature [℃]
-40 to 105
Device Package
HWQFN
Number of Pins
24
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