AK4343EN AKM [Asahi Kasei Microsystems], AK4343EN Datasheet - Page 90

• Manufacturer Part Number: AK4343EN
• Description: Stereo DAC with HP/RCV/SPK-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
MS0478-E-01
Mono signal output from Speaker-Amp
(Addr:00H, D5)
(Addr:00H, D4)
(Addr:02H, D5)
(Addr:02H, D6)
(Addr:02H, D7)
<Example>
PMSPK bit
PMMIN bit
SPPSN bit
DACS bit
MINS bit
SPP pin
SPN pin
CLOCK
The clocks can be stopped when only MIN-Amp and Speaker-Amp are operating.
(1) Power Up MIN-Amp and Speaker-Amp: PMMIN = PMSPK bits = “0” → “1”
(2) Disable the path of “DAC
(3) Exit the power-save-mode of Speaker-Amp: SPPSN bit = “0” → “1”
(4) Enter the power-save-mode of Speaker-Amp: SPPSN bit = “1” → “0”
(5) Power Down MIN-Amp and Speaker-Amp: PMMIN = PMSPK bits = “1” → “0”
(6) Disable the path of “MIN
Enable the path of “MIN
1
Hi-Z
Hi-Z
Figure 80. “MIN-Amp
(1)
HVDD/2
SPK-Amp”: MINS bit = “0” → “1”
SPK-Amp”: MINS bit = “1” → “0”
(2)
SPK-Amp”: DACS bit = “0”
Clocks can be stopped.
(3)
Normal Output
Normal Output
0
Speaker-Amp” Output Sequence
- 90 -
(4)
HVDD/2
Hi-Z
(5)
Hi-Z
(6)
Example:
(1) Addr:00H, Data:70H
(2) Addr:02H, Data:60H
(3) Addr:02H, Data:E0H
(4) Addr:02H, Data:60H
(5) Addr:00H, Data:40H
(6) Addr:02H, Data:00H
Mono Signal Output
[AK4343]
2006/10