TLC32046CFN Datasheet, PDF (55/56 Pages) Texas Instruments – Wide-Band Analog Interface Circuit

6 Application Information
TMS32020/C25
CLKOUT
FSX
DX
FSR
DR
CLKR
CLKX
TLC32046
MSTR CLK
FSX
VCC +
REF
DX
ANLG GND
FSR
DR
SHIFT CLK
VCC –
VDD
DGTL GND
C
BAT 42 ^†
+5V
C
C
–5V
+5V
0.1 µF
C = 0.2 µF, Ceramic
D
A
Figure 6 –1. AIC Interface to the TMS32020/C25 Showing Decoupling Capacitors
and Schottky Diode^†
† _{Thomson Semiconductors}
VCC
R
TL431
500 Ω
2500 Ω
3 V Output
0.01 µF
D
FOR: VCC = 12 V, R = 7200 Ω
VCC = 10 V, R = 5600 Ω
VCC = 5 V, R = 1600 Ω
Figure 6 –2. External Reference Circuit for TLC32046
6–1