TC520A Datasheet, PDF (9/16 Pages) TelCom Semiconductor, Inc – SERIAL INTERFACE ADAPTER FOR TC500 A/D CONVERTER FAMILY

TC520A
FIGURE 4-3:
Typical System Application
+5V
10k
V_IN+
V_IN-
100k
MCP1525
C_INT
C_AZ
R_INT
.01µ
.01µ
1 _INT
V+ ¹⁶
3 _CAZ
4
11
10
9
BUF
CMPTR ¹⁴
IN+ _TC500
B ¹³
A ¹²
IN–
CR– ⁶
REF+
CR+ ⁷
Crystal
C_REF
6 _OSCOUT
V+ ¹
7 _OSCIN
LOAD ¹²
8
3
4
5
13
CMPTR
READ
B
D_CLK
A ^{TC520A DIN}
DV
D_OUT
10
11
9
14 _CE
LD
RD
SK
SO
SI
1µF
8 _REF–
5 _COM
GND ¹⁵
V2
2 _GND
-5V
Analog Ground
CE
DGND
DV
FIGURE 4-4:
TC520A timing diagram
Read Timing
Load Timing
READ
T_RD
DOUT
T_DRS
DCLK
T_RS
T_PWL
LOAD
D_IN
D_CLK
T_LS
T_DLS
T_PWH
Load Default Timing
LOAD
D_IN
T_LDL
T_LDS
READ
Read Format ^DOUT
OVR POL MSB
LSB
D_CLK
LOAD
Load Format
D_IN
MSB
LSB
D_CLK
© 2002 Microchip Technology Inc.
DS21431B-page 9