- 您现在的位置：买卖IC网 > PDF目录69493 > TLC32046IFN (TEXAS INSTRUMENTS INC) SPECIALTY ANALOG CIRCUIT, PQCC28 PDF资料下载
参数资料
| 型号： | TLC32046IFN |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC28 |
| 封装： | PLASTIC, CC-28 |
| 文件页数： | 11/56页 |
| 文件大小： | 274K |
| 代理商： | TLC32046IFN |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页
2–5
2.8
Serial Port
The serial port has four possible configurations summarized in the function table on page 1–2. These
configurations are briefly described below.
The transmit and receive sections are operated asynchronously, and the serial port interfaces
directly with the TMS320C17. The communications protocol is two 8-bit bytes.
The transmit and receive sections are operated asynchronously, and the serial port interfaces
directly with the TMS32020, TMS320C25, and TMS320C30. The communications protocol is
one 16-bit word.
The transmit and receive sections are operated synchronously, and the serial port interfaces
directly with the TMS320C17. The communications protocol is two 8-bit bytes.
The transmit and receive sections are operated synchronously, and the serial port interfaces
directly with the TMS32020, TMS320C25, TMS320C30, or two SN74299 serial-to-parallel shift
registers, which can interface in parallel to the TMS32010, TMS320C15, to any other digital
signal processor, or to external FIFO circuitry. The communications protocol is one 16-bit word.
2.9
Synchronous Operation
When the transmit and receive sections are operated synchronously, the low-pass filter clock drives both
low-pass and band-pass filters (see Functional Block Diagram). The A/D conversion timing is derived from
and equal to the D/A conversion timing. When data bit D5 in the control register is a logic 1, transmit and
receive sections are synchronous. The band-pass switched-capacitor filter and the A/D converter timing are
derived from the TX(A) counter, the TX(B) counter, and the TA and TA’ registers. In synchronous operation,
both the A/D and the D/A channels operate from the same frequencies. The FSX and the FSR timing is
identical during primary communication, but FSR is not asserted during secondary communication because
there is no new A/D conversion result.
2.9.1
One 16-Bit Word (Dual-Word [ Telephone Interface] or Word Mode)
The serial port interfaces directly with the serial ports of the TMS32020, TMS320C25, and the TMS320C30,
and communicates in one 16-bit word. The operation sequence is as follows:
1.
The FSX and FSR pins are brought low by the TLC32046 AIC.
2.
One 16-bit word is transmitted and one 16-bit word is received.
3.
FSX and FSR are brought high.
4.
EODX and EODR emit low-going pulses one shift clock wide. EODX and EODR are valid in the
word or byte mode only.
If the device is in the dual-word (telephone interface) mode, FSD goes low during the secondary
communication period and enables the data word received at the DATA-DR/CONTROL input to be routed
to the DR line. The secondary communication period occurs four shift clocks after completion of primary
communications.
2.9.2
Two 8-Bit Bytes (Byte Mode)
The serial port interfaces directly with the serial port of the TMS320C17 and communicates in two 8-bit
bytes. The operation sequence is as follows:
1.
FSX and FSR are brought low.
2.
One 8-bit word is transmitted and one 8-bit word is received.
3.
EODX and EODR are brought low.
4.
FSX and FSR emit positive frame-sync pulses that are four shift clock cycles wide.
5.
One 8-bit byte is transmitted and one 8-bit byte is received.
6.
FSX and FSR are brought high.
7.
EODX and EODR are brought high.
相关PDF资料 |
PDF描述 |
|---|---|
| TLC32046MFKR | SPECIALTY ANALOG CIRCUIT, CQCC28 |
| TLC32046IFNR | SPECIALTY ANALOG CIRCUIT, PQCC28 |
| TLC32046MJ | SPECIALTY ANALOG CIRCUIT, CDIP28 |
| TLC320AD50CDW | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| TLC320AD52CDWR | SPECIALTY ANALOG CIRCUIT, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TLC32046IN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TLC32046M | 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit |
| TLC32047 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit |
| TLC32047C | 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit |
| TLC32047CFN | 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit |
发布紧急采购，3分钟左右您将得到回复。