LTC1400 Datasheet, PDF (14/20 Pages) Linear Technology – Complete SO-8, 12-Bit, 400ksps ADC with Shutdown

LTC1400
TYPICAL APPLICATIONS
Hardware Interface to TMS320C50’s TDM Serial Port (Frame Sync is Generated from TFSX)
5V
1 _VCC
CLK ⁶
+
10µF
0.1µF
UNIPOLAR
INPUT
2 _AIN
CONV
3
LTC1400
V_REF
D_OUT
7
5
+
10µF
0.1µF ^VSS
GND
8
4
TMS320C50
TCLKX
TCLKR
TFSX
TFSR
TDR
LTC1400 • TA04a
Logic Analyzer Waveforms Show 3.2µs Throughput Rate (Input Voltage = 3.046V, Output Code = 1011 1110 0110 = 3046₁₀)
14
Data from LTC1400 Loaded into TMS320C50’s TRCV Register
X RDY D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 X X
Data Stored in TMS320C50’s Memory (in Right Justified Format)
0 0 0 RDY D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0