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參數(shù)資料
| 型號(hào)： | S5L986F02 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | DIGITAL SIGNAL PROCESSOR FOR DISCMAN |
| 中文描述： | 數(shù)字信號(hào)處理器隨身聽(tīng) |
| 文件頁(yè)數(shù)： | 30/35頁(yè) |
| 文件大?。?/td> | 474K |
| 代理商： | S5L986F02 |
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S5L9286F02
DIGITAL SIGNAL PROCESSOR FOR DISCMAN
30
D/A CONVERTER (DIGITAL TO ANALOG CONVERTER)
The S5L9284E has a built-in 16-bit D/A converter. Digital audio data is a 2's complement serial format (MSB sirst),
Vref Terminal
Vref, the reference voltage across a resister-ladder, is usually recommended with VrefH1=5V, VrefL1=0V.
One way of avoiding an amplitude mismatching between the Vref and OP AMP input connected to the output of D/
A converter is to reduce the analog output amplitude with VrefH2=5V and VrefL2=0V (At this time about 100
μ
F
capacitor should be connected from VreH1 and VrefL1 to GND). By the effect of built-in RH and RL with this
choice, the maximum analog output amplitude result in a narrow range of about 1.5 ~ 3.5V for 0dB playback.
Figure 17. Vref Relation Circuit
D/A Converter Electrical Characteristic
The D/A Converter electrical characteristic built in S5L9826F02 is as follows.
(V
DD
= 5V, V
SS
= 0V, Ta = 25
o
C)
Characteristics
Symbol
Test Conditon
MIN
TYP
MAX
Unit
Total Harmonic Distortion
THD
Data=1kHz, 0dB
0.08
%
Signal to Noise Ratio
S/N
V
DD
=4.5V
Data=1kHz, 0dB
92
dB
Cross-Talk
CT
Data=1kHz, 0dB
85
dB
Voltage
Dividing
D/A Converter
D3 - D0,
D15 - D7
VREFH1
VREFH2
VREFL1
VREFL2
Analog
MUX
Control
Circuit
D6 - D4
RCHOUT
LCHOUT
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