TLC320AD55 Datasheet, PDF (34/41 Pages) Texas Instruments – Sigma-Delta Analog Interface Circuit

2Ω
5V
+
5 VA(ADC)
22 µF
0.1 µF
AGND
2Ω
+
5 VA(DAC)
5 VA(ADC)
5 VA(DAC)
22 µF
0.1 µF
0.1 µF ^AGND
0.1 µF
AGND
IN(+)
26
25
IN(–)
28
20 kΩ
27
VMID
0.01 µF
+
22 µF
AGND
AGND
0.1 µF
+
22 µF
23
6
0.1 µF
AGND
8
RESET
16.384 MHz
14
Oscillator
15
24
VDD
(ADC)
21
VSS
(ADC)
22
7
5
VA VSS VDD
(SUB) (DAC) (DAC)
INP
INM
AUXP
AUXM
TLC320AD55C
REFCAPADC
REFCAPDAC
PWRDWN ²
OUTP ³
OUTM ⁴
ALT DATA ¹⁸
11
DOUT
DIN ¹⁰
SCLK ¹³
FS ¹²
RESET
MCLK
FC
DVSS
VD(SUB)
17
FLAG 0
FLAG 1 ¹⁶
NU ¹
VDD
20
19
9
1 kΩ
OUT(+)
OUT(–)
NC
DR
DX
CLKX
CLKR
FSX
FSR
TMS320C5X
DSP
Serial Port
Phone Mode
Programmable Bits (Latched)
NC
DGND
0.1 µF
+
10 µF
3V
Figure 5–2. TLC320AD55C I/O Buffer and V_MID Generator Schematic
5–2