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參數(shù)資料
| 型號： | UPD63210LGT |
| 廠商： | NEC Corp. |
| 英文描述： | 16-BIT D/A CONVERTER WITH BUILT-IN DIGITAL FILTER FOR AUDIO |
| 中文描述： | 16位D /一個內(nèi)置轉(zhuǎn)換器，在數(shù)字的音頻過濾器 |
| 文件頁數(shù)： | 14/18頁 |
| 文件大小： | 141K |
| 代理商： | UPD63210LGT |
μ
PD63210, 63210L
14
4. APPLICATION CIRCUIT EXAMPLE
An application circuit example in using crystal oscillation circuits is shown in Figure 4-1.
Figure 4-1. Application Circuit Example in Using Crystal Oscillation Circuits
Note
In this example, reference capacitors (21-/22-pin external capacitors)
are installed independently. Even if these are realized in a common
system (one 47
μ
F), they will not cause any operational problems.
However, the crosstalk may be deteriorated slightly (by several dB);
therefore, please decide after evaluating the samples provided.
5. CAUTIONS
(1) Shock noise countermeasure
It is recommended that the analog mute circuit be connected to the next stage before using the
converter. Without a mute circuit, shock noises may occur when the power is turned on.
(2) Resetting
Reset the system when switching over the input data bit length, the system clock, the digital
deemphasis, or the CD double-speed playback.
System reset must be executed after both master clock and LR clock become stable. If master clock or LR
clock becomes unstable after system reset, the analog output signal may be unstable.
1 TSEL
14 BSEL
2 RST
3 XTO
4 XTI
5 MCKO
6 CKSEL
7 BCKI
8 SDI
9 LRCKI
10 DEFS1
11 DEFS2
12 DSEL
13 SMUTE
DVDD
DGND
AVDD
LO
AOL
ANIL
APIL
LREF
RREF
APIR
ANIR
AOR
RO
AGND
28
15
27
26
25
24
23
22
21
20
19
18
17
16
RESET CONTROL
20 to 30 pF x 2
LPF
LPF
CRYSTAL
970 k
SYSTEM CLOCK OUT
MODE
CONTROL
SERIAL
DATA INPUT
MODE
CONTROL
0.1
F
μ
0.1
F
μ
+
+
Digital V
DD
Analog V
DD
Lch
AUDIO OUT
Rch
AUDIO OUT
Analog GND
Digital GND
47
F
μ
Note
47
F
μ
+
+
P
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