參數(shù)資料
型號(hào): TLC320AD77CDBG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝: GREEN, PLASTIC, SSOP-28
文件頁(yè)數(shù): 19/33頁(yè)
文件大小: 391K
代理商: TLC320AD77CDBG4
5–2
5.2
External Analog Back-End Circuit (fs = 44.1 kHz)
For specified performance, the output should be taken between VCOM and AOUTR (or AOUTL). At pins
AOUTR and AOUTL the output is an inverted analog representation of the digital input signal. It is advisable
to add a low-pass filter to the output of the TLC320AD77C to eliminate high frequency noise >80 kHz. See
Figure 5–2 for the recommended analog back-end circuit. The output of this circuit provides the user with
a noninverted signal.
_
+
C6
R9
10 k
AOUTR
VCOM
33 pF
R10
2
10 k
3
4
8
5 V
GND
10 k
R7
R8
10 k
C5
33 pF
3.3 VA_Ground
(AD77 AVSS @ U2–7)
0.7 Vrms
C20
47
F
R11
100 k
3.3 VA_Ground
R12
221
Right Channel DAC
Output 0.7 Vrms
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
Figure 5–2. Analog Back End (right channel) for 0.7 Vrms Output
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