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PDF AK4686 Data sheet ( Hoja de datos )
| Número de pieza | AK4686 | |
| Descripción | Multi-channel CODEC | |
| Fabricantes | AKM | |
| Logotipo |  |
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[AK4686]
AK4686
Multi-channel CODEC with Capless Stereo Selector
GENERAL DESCRIPTION
The AK4686 is a single chip audio CODEC that includes one stereo ADC and two stereo DACs in addition
to the input selector and the line drivers. The interfaces of ADC/DAC can accept up to 24bit input data and
support asynchronous operation. Both the input stereo selector and output drivers support ground
reference I/O to remove AC-coupling capacitors and reducing external parts. The AK4686 has a dynamic
range of 96dB for ADC, 100dB for DAC, and it is well suitable for digital TV and Home theater systems.
FEATURES
Asynchronous Operation between Port 1(ADC and DAC1) and Port 2 (DAC2)
6:1 Capless Stereo Line Input Selector
24bit Stereo ADC
- 64x Oversampling
- Sampling Rate up to 48kHz
- Linear Phase Digital Anti-Alias Filter
- S/(N+D): 88dB
- Dynamic Range, S/N: 96dB
- Digital HPF for Offset Cancellation
24bit Two Stereo DAC
- 128x Oversampling
- Sampling Rate up to 192kHz
- 24bit 8 times Digital Filter
- S/(N+D): 88dB
- Dynamic Range, S/N: 100dB
- De-emphasis Filter
- Analog Soft Mute
High Jitter Tolerance
TTL Level Digital I/F
External Master Clock Input:
256fs, 384fs, 512fs 768fs (fs=32kHz ∼ 48kHz)
128fs, 192fs, 256fs 384fs (fs=64kHz ∼ 96kHz)
128fs, 192fs (fs=128kHz ~ 192kHz)
2 Audio Serial I/F (PORT1, PORT2)
- Master/Slave mode (PORT1)
- I/F format
PORT2: MSB, LSB justified (16/24 bit), I2S
PORT1: MSB, LSB justified (16/24 bit), I2S
I2C Bus μP I/F for mode setting
Operating Voltage:
- Digital I/O: 3.0V ∼ 3.6V
- Charge Pump: 3.0V ∼ 3.6V
- Analog: 3.0V ∼ 3.6V
Package: 48pinLQFP
MS1243-E-01
-1-
2010/10
1 page  
[AK4686]
PIN/FUNCTION (Continued)
No. Pin Name I/O
Function
43 LIN3
I Lch Input 3 Pin
44 RIN3
I Rch Input 3 Pin
45 NC
- This pin must be connected to the ground.
46 LIN4
I Lch Input 4 Pin
47 RIN4
I Rch Input 4 Pin
48 NC
- This pin must be connected to the ground.
Note: All digital input pins must not be left floating.
■ Handling of Unused Pin
The unused I/O pins must be processed appropriately as below.
Classification
Analog
Digital
-
Pin Name
LOUT1-2, ROUT1-2, LIN1-6, RIN1-6
SDTO1, LRCK1(Master), BICK1(Master)
MCLK1-2, LRCK1(Slave), LRCK2, BICK1(Slave),
BICK2, SDTI1-2, MS1, CAD0
SDA, SCL, MT1N, MT2N
NC
Setting
These pins must be open.
These pins must be open.
These pins must be connected to VSS4.
These pins must be pulled-up to DVDD.
These pins should be connected to the ground.
MS1243-E-01
-5-
2010/10
5 Page 
■ Timing Diagram
MCLK
LRCK
1/fCLK
tCLKH
tCLKL
1/fsn, 1/fsd, 1/fsq
BICK
tBCK
tBCKH
tBCKL
Clock Timing (Normal mode)
LRCK
BICK
tBLR
tLRB
tLRS
SDTO
SDTI
tSDS
tSDH
Audio Interface Timing
[AK4686]
VIH
VIL
VIH
VIL
VIH
VIL
VIH
VIL
tBSD
VIH
VIL
50% TVDD
VIH
VIL
LRCK= LRCK1, LRCK2
BICK= BICK1, BICK2
SDTI= SDTI1/2
SDTO= SDTO1.
MS1243-E-01
- 11 -
2010/10
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AK4686.PDF ] | |
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