AK4951AEN Datasheet, PDF (6/105 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4951A]
■ Comparison Table to AK4951
1. Function
Function
PLL Mode
(MCKI Frequency)
Automatic Wind Noise
Reduction Filter
AK4951
11.2896MHz, 12MHz, 12.288MHz,
13.5MHz, 24MHz, 27MHz
Voice peak detection mode:
Auto
AK4951A
11.2896MHz, 12MHz, 12.288MHz,
13.5MHz, 16MHz, 24MHz, 27MHz
Voice peak detection mode:
Selectable
2. Register Setting
1) PLL Reference Clock Setting
Mode 0 of the PLL mode setting was added from AK4951.
Mode
0
2
3
4
5
6
7
12
13
Others
PLL3
bit
0
0
0
0
0
0
0
1
1
PLL2 PLL1
bit bit
0
0
0
1
0
1
1
0
1
0
1
1
1
1
1
0
1
0
Others
PLL0
bit
0
0
1
0
1
0
1
0
1
PLL Reference
Input
Clock Input Pin Frequency
MCKI pin
16MHz
BICK pin
32fs
BICK pin
MCKI pin
64fs
11.2896MHz
MCKI pin
12.288MHz
MCKI pin
12MHz
MCKI pin
24MHz
MCKI pin
13.5MHz
MCKI pin
27MHz
N/A
PLL Lock Time
(max)
5ms
2ms
2ms
5ms
5ms
5ms
5ms
5ms
5ms
2) Automatic Wind Noise Reduction Filter
VODETN bit was added from AK4951.
Addr Register Name D7
D6
D5
D4
03H Signal Select 2 SPKG1 SPKG0 VODETN MICL
D3
INL1
D2
INL0
D1
INR1
D0
INR0
VODETN: Voice Peak Detection Disable
0: Enable (default)
1: Disable
When AHPF and VODETN bits = “1”, voice peak detection is disable. VODETN bit must be set
when PMPFIL bit = “0”.
3) Device Information
Addr Register Name
31H Device Information
D7
D6
D5
D4
D3
D2
D1
D0
REV3 REV2 REV1 REV0 DVN3 DVN2 DVN1 DVN0
REV3-0: Device Revision ID (Read operation only.)
1100: AK4951
1101: AK4951A
016001936-E-00
-6-
2016/03