AK4640_05 Datasheet, PDF (77/78 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
MARKING (AK4640VN)
AKM
AK4640VN
XXXXXXX
[AK4640]
1
XXXXXXX : Date code identifier (7 digits)
Revision History
Date (YY/MM/DD)
04/03/16
04/11/26
Revision
00
01
Reason
First Edition
Explanation
addition:
05/04/27
02
Explanation
change:
Error correct
Page
27
36
69
1
38-39
1
Contents
Audio Interface Format
[When LOOP bit = “1”, audio interface format
of SDTO is fixed to I²S regardless of DIF1-0
bits setting.] is added.
Headphone Output
Rise/fall time constant: τ = 250ms(max).
Time until the common goes to HVSS when
PMHPL/R bits = “1” Æ “0”: 500ms(max).
Headphone Output Sequence (6), (7)
Rise/fall time constant: τ = 250ms(max)
Features
SPK-AMP Output Power: 300mW Æ 400mW
SPK-AMP
“Connection Example for 400mW output” is
added.
Features
MCLK(min): 1.792MHz Æ 2.048MHz
MS0273-E-02
- 77 -
2005/04