Stereo CODEC. AK4665A Datasheet

AK4665A CODEC. Datasheet pdf. Equivalent

AK4665A Datasheet
Recommendation AK4665A Datasheet
Part AK4665A
Description Stereo CODEC
Feature AK4665A; ASAHI KASEI [AK4665A] - AK4665A 20-Bit Stereo CODEC with MIC/HP-AMP GENERAL DESCRIPTION The AK4665.
Manufacture AKM
Datasheet
Download AK4665A Datasheet




AKM AK4665A
ASAHI KASEI
[AK4665A]
-
AK4665A
20-Bit Stereo CODEC with MIC/HP-AMP
GENERAL DESCRIPTION
The AK4665A is a 20bit CODEC with built-in Input PGA and Headphone Amplifier. The AK4665A
includes a microphone/line input selector and an ALC circuit for input, and a stereo line output buffer,
analog volume controls and capless stereo headphone amplifier for output. The AK4665A also features
an analog mixing circuit that allows easy interfacing in mobile phone and portable communication
designs. The integrated headphone amplifier features “pop-free” power-on/off, a mute control and
delivers 31mW of power into 16load. The AK4665A is housed in a 32pin QFN package, making it
suitable for portable applications.
FEATURE
† 2ch 20bit ADC
- Mono MIC-Amp: +30dB/+6dB/0dB/6dB
- Single-ended Input
- Input Selector
- Digital ALC: +41.25dB ∼ −54dB, 0.375dB Step, Mute
- Digital HPF for DC-offset cancellation
- I/F format: 20bit MSB justified, I2S
- S/N: 93dB
† 2ch 20bit DAC
- Digital ATT: 0dB ∼ −127dB, Mute, 0.5dB step (soft transition)
- Soft Mute
- Digital De-emphasis Filter: 32kHz, 44.1kHz and 48kHz
- Bass Boost
- I/F Format: I2S, 20bit MSB justified, 20bit/16bit LSB justified
† Sampling Rate: 8kHz 48kHz
† System clock: 256fs/512fs
† Analog Mixing Circuit
† Stereo Lineout
- ALC: +19.5dB ∼ −12dB, 0.5dB step
- Analog Volume: 0dB ∼ −30dB, Mute, 2dB step
† Capless Stereo Headphone Amplifier
- Output Power: 31mW x 2ch @16
- Line output mode: 1Vrms @10k
- Charge pump circuit for negative power supply
- S/N: 88dB
† µP Interface: 3-wire
† Power Management
† Power Supply:
- AVDD, DVDD, HVDD: 2.6V 3.6V
- TVDD (Digital I/O): 1.6V 3.6V
† Power Supply Current: 20mA
† Ta: 30 85°C
† Small Package: 32pin QFN (5mm x 5mm, 0.5mm pitch)
MS0440-E-01
-1-
2006/05



AKM AK4665A
ASAHI KASEI
MPWR
MICIN
AVDD AVSS
PMMP
MIC Power
MIC-Amp
VREF
VREF
PMADC
VCOM
VCOM
PMVCM
DVDD DVSS TVDD
AINL1
AINR1
HPL
HPR
LOUT
ROUT
LIN
RIN
MIN
HVDD
HVSS
PMHPL
HP-Amp
PMHPR
ADC
HPF ALC1
PMDAC
Audio I/F
Controller
DAC
DATT DEM
SMUTE Boost
ATT ALC2
PMLO
LPF
LPF
LPF
PMCP
Charge
Pu mp
PMHPL
or PMHPR
or PMLO
Control
Register
CP CN NVSS
Figure 1. Block Diagram
[AK4665A]
MCLK
BICK
LRCK
SDTO
SDTI
CSN
CCLK
CDTI
PDN
MS0440-E-01
-2-
2006/05



AKM AK4665A
ASAHI KASEI
„ Ordering Guide
AK4665AEN
AKD4665A
„ Pin Layout
30 +85°C
32pin QFN (0.5mm pitch)
Evaluation board for AK4665A
[AK4665A]
AVSS
AVDD
VCOM
VREF
PDN
CSN
CCLK
CDTI
25
26
27
28
29
30
31
32
AK4665AEN
Top View
16 ROUT
15 HPR
14 HPL
13 NVSS
12 HVSS
11 HVDD
10 CN
9 CP
„ Comparison Table between AK4569 and AK4665A
Function
HP-Amp Power Supply
HP-Amp Output
MIC-Amp
MIC-Power
ALC for Recording
ALC for Playback
Loopback
SDTO Disable
Lineout
MCLK
Power Supply
Package
AK4569
Single Power Supply
8.7mW@16
No
No
Analog
MIC: +32 ∼ −19dB, 0.5dB step
LINE: +20 ∼ −31dB, 0.5dB step
No
No
No
Mono
CMOS or AC coupling input
2.5 3.6V
28QFN
(5.2mm x 5.2mm, 0.5mm pitch)
AK4665A
Dual Power Supply
(Single Power Supply as external case)
31mW@16
Yes
Yes
Digital
+41.25 ∼ −54dB, 0.375dB step
Yes
Yes
Yes
Stereo
CMOS input
AVDD, DVDD, HVDD: 2.6 3.6V
TVDD: 1.6 3.6V
32QFN
(5mm x 5mm, 0.5mm pitch)
MS0440-E-01
-3-
2006/05







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