參數(shù)資料
型號(hào): PCM1773RGAR
元件分類: DAC
英文描述: LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER
中文描述: 低電壓和低功耗立體聲音頻數(shù)模轉(zhuǎn)換器與線路輸出AMPIIFIER
文件頁(yè)數(shù): 7/29頁(yè)
文件大小: 309K
代理商: PCM1773RGAR
SLES010D – SEPTEMBER 2001 – REVISED MAY 2004
www.ti.com
7
FUNCTIONAL BLOCK DIAGRAM
DAC
Σ
Audio
Interface
×
8
Digital
Filter
+
DAC
Σ
SPI
Port
×
8
Digital
Filter
+
VCOM
Clock Manager
Power Supply
LRCK
DATA
BCK
(FMT) MS
(AMIX) MC
(DEMP) MD
SCKI
PD
VCC1
VCC2
VOUTR
VCOM
VOUTL
AIN
Digital
Attenuator
Lineout
Amplifier
( ) : PCM1773
AGND1
AGND2
TYPICAL PERFORMANCE CURVES
DIGITAL FILTER
Digital Filter (De-Emphasis Off)
Figure 1
f – Frequency [
fS]
140
120
100
80
60
40
20
0
0
1
2
3
4
A
AMPLITUDE
vs
FREQUENCY
Figure 2
f – Frequency [
fS]
0.05
0.04
0.03
0.02
0.01
0.00
0.01
0.02
0.03
0.04
0.05
0.0
0.1
0.2
0.3
0.4
0.5
A
AMPLITUDE
vs
FREQUENCY
All specifications at TA = 25
°
C, VCC1 = VCC2 = 2.4 V, fS = 44.1 kHz, system clock = 256 fS and 24-bit data, RL = 10 k
, unless otherwise noted.
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