TLC32047C Datasheet, PDF (13/61 Pages) Texas Instruments – Wide-Band Analog Interface Circuit

Analog In
Analog Out
VCC+
(5 V nom)
5V
–5 V
20
19
VCC ₊
VCC _–
26 _{IN +}
DR ⁵
25 _{IN –}
TLC32047 _FSR ⁴
Serial Data Out
22 _{OUT +}
21 _{OUT –}
3
EODR
12
DX
FSX ¹⁴
Serial Data In
EODX ¹¹
TMS32020,
TMS320C25,
TMS320C30,
or Equivalent
16-Bit DSP
TTL or CMOS
Logic Levels
1 _WORD-BYTE
13
CONTROL
VCC _–
(– 5 V nom)
Analog In
Analog Out
VCC _–
(– 5 V nom)
Figure 1–2. Word Mode
5V
–5 V
20
19
VCC ₊
VCC _–
26
IN +
DR ⁵
25
IN –
TLC32047 _FSR ⁴
Serial Data Out
22
OUT+
21 _OUT–
3
EODR
12
DX
14
FSX
Serial Data In
11
EODX
TMS320C17
or Equivalent
8-Bit Serial
Interface
(2 Bytes Required)
TTL or CMOS
Logic Levels
1 _WORD-BYTE
13
CONTROL
VCC _–
(– 5 V nom)
Figure 1–3. Byte Mode
The word or byte mode is selected by first connecting the DATA-DR/CONTROL input to V_CC–.
FSD/WORD-BYTE becomes an input and can then be used to select either word or byte transmission
formats. The end-of-data transmit (EODX) and the end-of-data receive (EODR) signals on terminals 11 and
3, respectively, are used to signal the end of word or byte communication (see the Terminal Functions
section).
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