參數(shù)資料
型號: AK4343
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: Stereo DAC with HP/RCV/SPK-AMP
中文描述: 立體聲DAC惠普/垃圾車/胰腎聯(lián)合移植腺苷
文件頁數(shù): 55/98頁
文件大小: 851K
代理商: AK4343
ASAHI KASEI
[AK4343]
MS0478-E-01
2006/10
- 55 -
When RCV bit = “1”, LOUT/ROUT pins become RCP/RCN pins, respectively. Lch/Rch signal of DAC or
LIN2/RIN2/LIN3/RIN3 is output from the RCP/RCN pins which is BTL as (L+R)/2 signal. The load impedance is 32
(min). When the PMLO bit = “0”, the mono receiver output enters power-down mode and the output is Hi-Z. When the
PMLO bit is “1” and LOPS bit is “1”, mono receiver output enters power-save mode. Pop noise at power-up/down can be
reduced by changing PMLO bit at LOPS bit = “0”. When PMLO bit = “1” and LOPS bit = “0”, mono receiver output
enters in normal operation. LOVL bit set the gain of mono receiver output.
“DACL”
DAC
RCP pin
RCN pin
“LOVL”
Figure 48. Mono Receiver Output
LOVL
0
1
Gain
+6dB
+8dB
Output Voltage (typ)
0.59 x AVDD @
6dBFS
0.59 x AVDD @
8dBFS
Default
Table 47. Mono Receiver Output Volume Setting
PMLO
0
LOPS
x
1
0
Mode
RCP
Hi-Z
Hi-Z
RCN
Hi-Z
VCOM/2
Normal Operation
Default
Power-down
Power-save
Normal Operation
Table 48. Receiver-Amp Mode Setting (x: Don’t care)
1
Normal Operation
PMLO bit
LOPS bit
RCP pin
RCN pin
VCOM
VCOM
Hi-Z
Hi-Z
Hi-Z
Hi-Z
>1ms
>0
Figure 49. Power-up/Power-down Timing for Receiver-Amp
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