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
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

AK4191EQ
AK4430ET
AK4331ECB
AK4332ECB
AK4377AECB
AK4377ECB
AK4432VT
AK4436VN
AK4438VN
AK4452VN
AK4454VN
AK4456VN
AK4458VN
AK4462VN
AK4468VN
AK4482VT
AK4490EN
AK4490EQ
AK4490REQ
AK4492ECB
AK4493EQ
AK4493SEQ
AK4495EQ
AK4495SEQ
AK4497EQ
AK4498EQ
AK4499EQ

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

AK4331 Ultra Low-Power HiFi Headphone DAC
■ Block Diagram ■ Key Features
■ Development Schedule (CY)
Dec/2017
□ Ultra Low-Power HiFi Headphone DAC
- THD+N: -97 dB
- S/N: 107 dB
- Output Noise Level: -113 dBV
- Power Consumption: 4.5mW
□ Asynchronous Sample Rate Converter
- Up sample: up to 6x
- 4-type Digital Filter for Sound Color Options
□ Stereo Digital Mic interface
□ Power Management
□ PLL
□ Jitter Cleaner by built-in SRC & X’tal OSC
□ IEC61000-4-2 Level 4 ESD protection compliant
□ Small Package
- 2.371 x 2.533 mm2 36-pin WLCSP
- Pin-to-Pin with AK4375A
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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