參數(shù)資料
型號: AK4368EG
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: DAC with built-in PLL & HP-AMP
中文描述: DAC,帶有內(nèi)置的鎖相環(huán)
文件頁數(shù): 57/60頁
文件大小: 817K
代理商: AK4368EG
ASAHI KASEI
[AK4368EG]
MS0529-E-00
2006/07
- 57 -
SYSTEM DESIGN
Figure 48 shows the system connection diagram. An evaluation board [AKD4368] is available which demonstrates the
optimum layout, power supply arrangements and measurement results.
Top View
NC
HPL
MIN
NC
RIN
NC
VCOC
LIN
PVDD
PVSS
NC
MCKO
DVSS
I2C
LRCK
SDATA
DVDD
MCKI
BICK
SDA/
NC
SCL/
CCLK
NC
CAD0/
CSN
PDN
NC
NC
3DCAP1
3DCAP2
3DCAP3
LOUT
NC
ROUT
VCOM
MUTET
AVDD
AVSS
HVDD
HVSS
HPR
NC
16
220μ
+
220μ
+
16
Headphone
Analog Supply
1.6
3.6V
10
0.1μ
0.1μ
+ 10μ
2.2μ
Speaker
SPK-Amp
Cp
Rp
0.1μ
0.1μ
Audio Controller
μP
470n 4.7n
1000p
Notes:
- AVSS, DVSS, HVSS and PVSS of the AK4368 should be distributed separately from the ground of external
controllers.
- Do not let digital input pins float.
- When the AK4368 is in EXT mode (PMPLL bit = “0”), a resistor and capacitor for the VCOC pin is not needed.
- When the AK4368 is in PLL mode (PMPLL bit = “1”), a resistor and capacitor for the VCOC pin is shown in
Note 26. Type 1-4 frequency is indicated in Table 2.
Table 1.
- When the AK4368 is used in master mode, LRCK and BICK pins are floating before the M/S bit is changed to
“1”. Therefore, a 100k
pull-up resistor should be connected to the LRCK and BICK pins of the AK4368.
Figure 48. Typical Connection Diagram (In case of AC coupling to MCKI)
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