ak4644 AKM Semiconductor, Inc., ak4644 Datasheet - Page 95

• Manufacturer Part Number: ak4644
• Description: Stereo Codec With Mic/hp/rcv-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0477-E-01
Date (YY/MM/DD)
06/04/04
06/10/24
Revision
00
01
Reason
First Edition
Spec change
Error correct
XXXXX : Date code identifier (5 digits)
1
Revision History
AK4644
XXXXX
AKM
Page
36
55
63
73
86
87
88
MARKING
- 95 -
Contents
MIC/LINE Input Selector
Table 21 (Handling of MIC/Line Input Pins) was added.
Stereo Line Output Control Sequence
I
Register Definitions (Addr=0FH)
Control Sequence (Clock Setup: Ext Slave Mode)
Control Sequence (Clock Setup: Ext Master Mode)
Control Sequence (Mic Recording)
ALC Setting: “Refer to Figure 23”
2
C Bus Control Mode
MCLK Frequency: 1024fs
Addr=05H: Data=01H
MCLK Frequency: 1024fs
Addr=05H: Data=01H
“When full-differential input is used, the signal should
not be input to the pins marked by “X” in Table 21.”
was added.
Power-down mode:
PMLO bit = “1”
“those most significant 3-bits are fixed to zeros”
HPM bit: “When the HPM bit = “1”, (L+R)/2 signals
are output to Lch and Rch of the Headphone-Amp.
Both PMHPL and PMHPR bits should be “1” when
HPM bit is “1”.
output to Lch and Rch of the Headphone-Amp as
(L+R)/2.”
“When the HPM bit = “1”, DAC output signal is
“those most significant 2-bits are fixed to zeros”
PMLO bit = “0”
00H
00H
256fs
256fs
“Refer to Figure 36”
[AK4644]
2006/10