參數(shù)資料
型號(hào)： DSP101
英文描述： DSP-Compatible Sampling Single/Dual ANALOG-TO-DIGITAL CONVERTERS
中文描述： DSP兼容采樣單/雙模擬數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 18/22頁(yè)
文件大?。?/td> 252K
代理商： DSP101
DSP101/102
18
based on using the TME320Cxx in the mode where SSF
(Select Synch Format, pin 12) is tied HIGH, so that there is
an active High synchronization pulse generated by the
DSP101 or DSP102 after receiving a convert command. The
synchronization pulse can be changed to active Low simply
by making SSF LOW, where appropriate, without changing
the basic operation of the A/Ds.
In all cases, the DSP101 and DSP102 will transmit data
MSB-first, and the TMS320Cxx needs to be programmed
for this.
Figure 11 shows a circuit for using the TMS320C25 or
TMS320C30 in a complete analog input and analog output
system using the DSP101 along with the Burr-Brown DSP201
D/A.
FIGURE 14. Two-Channel Analog Input and Output System with TMS320C30.
TTL Bit
Clock
12
11
9
10
16
15
XCLK
SINA
SINB
SYNC
SSF
SWL
CASC
CONV
±3V Analog Output
Channel A
21
5
VOUTA
VOUTB
DSP202
Conversion Rate
Generator
XCLK
SYNC
SSF
CASC
CONV
DSP102
+5V
+5V
16
15
12
22
21
±2.75V Analog Input
Channel A
DR-0
DR-1
CLKX-0
CLKX-1
±3V Analog Output
Channel B
DX-0
DX-1
FSX-0
FSX-1
CLKR-0
CLKR-1
FSR-0
FSR-1
+5V
TMS320C30
VINA
VINB
±2.75V Analog Input
Channel B
2
25
NOTES: (1) Sample rate on DSP102 and DSP202 may differ. (2) Analog Devices ADSP2101 may be used. SPORT1 and SPORT2
are used for serial MSB first communication. (3) See Burr-Brown DSP201/DSP202 product data sheet for full description of this DAC.
(1)
(3)
SOUTA
SOUTB
13
14
FIGURE 15. Two-Channel Analog Input and Output System with TMS320C30 in Cascade Mode.
TTL Bit
Clock
12
13
14
11
9
10
16
15
XCLK
SINA
SINB
SYNC
SSF
SWL
CASC
CONV
±3V Analog Output
Channel A
21
5
VOUTA
VOUTB
DSP202
Conversion Rate
Generator
XCLK
SOUTA
SOUTB
SYNC
SSF
CASC
CONV
DSP102
+5V
+5V
+5V
16
20
17
15
12
22
21
±2.75V Analog Input
Channel A
CLKR-0
DR-0
±3V Analog Output
Channel B
CLKX-0
DX-0
FSR-0
+5V
+5V
TMS320C30
VINA
VINB
±2.75V Analog Input
Channel B
2
25
NOTES: (1) Program TMS320C30 for 32-bit mode. (2) Sample rate on DSP102 and DSP202 may differ. (3) DSP32C may be used in this mode.
(4) See Burr-Brown DSP201/202 product data sheet for full description of this DAC.
FSX-0
NC
(2)
(4)
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