参数资料
型号: TLC32047I
厂商: Texas Instruments, Inc.
英文描述: Wide-Band Analog Interface Circuit
中文描述: 宽带模拟接口电路
文件页数: 24/61页
文件大小: 303K
代理商: TLC32047I
2–6
2.9.2
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:
Two 8-Bit Bytes (Byte Mode)
1.
2.
3.
4.
5.
6.
7.
FSX and FSR are brought low.
One 8-bit word is transmitted and one 8-bit word is received.
EODX and EODR are brought low.
FSX and FSR emit positive frame-sync pulses that are four shift clock cycles wide.
One 8-bit byte is transmitted and one 8-bit byte is received.
FSX and FSR are brought high.
EODX and EODR are brought high.
2.9.3
The synchronous operating frequencies are determined by the following equations.
Synchronous Operating Frequencies
Switched capacitor filter (SCF) frequencies (see Figure 2–1):
Low pass SCF clock frequency
-
(D A and A D channels)
master clock frequency
T(A)
2
High pass SCF clock frequency (A D channel)
-
A D conversion frequency
Conversion frequency (A D and D A channels)
Low pass SCF clock frequency
T(B)
master clock frequency
T(A)
2
T(B)
NOTE: T(A), T(B), R(A), and R(B) are the contents of the TA, TB, RA, and RB registers, respectively.
2.10 Asynchronous Operation
When the transmit and the receive sections are operated asynchronously, the low-pass and band-pass filter
clocks are independently generated from the master clock. The D/A and the A/D conversion timing is also
determined independently.
D/A timing is set by the counters and registers described in synchronous operation, but the RA and RB
registers are substituted for the TA and TB registers to determine the A/D channel sample rate and the A/D
path switched-capacitor filter frequencies. Asynchronous operation is selected by control register bit D5
being zero.
2.10.1
The serial port interfaces directly with the serial ports of the TMS32020, TMS320C25, and TMS320C30 and
communicates with 16-bit word formats. The operation sequence is as follows:
One 16-Bit Word (Word Mode)
1.
2.
3.
4.
FSX or FSR are brought low by the TLC32047 AIC.
One 16-bit word is transmitted or one 16-bit word is received.
FSX or FSR are brought high.
EODX or EODR emit low-going pulses one shift clock wide. EODX and EODR are valid in either
the word or byte mode only.
2.10.2
The serial port interfaces directly with the serial port of the TMS320C17 and communicates in two 8-bit
bytes. The operating sequence is as follows:
Two 8-Bit Bytes (Byte Mode)
1.
2.
FSX or FSR are brought low by the TLC32047 AIC.
One byte is transmitted or received.
相关PDF资料
PDF描述
TLC320A545C SMA (F) TO BNC (M) ADAPTERS
TLC320A545C-I SMA (F) TO MCX (F) ADAPTERS
TLC320A545I SMA (F) TO MCX (M) ADAPTERS
TLC339QD DIODE ZENER DUAL ISOLATED 200mW 24Vz 5.2mA-Izt 0.05 0.1uA-Ir 18 SOT-363 3K/REEL
TLC139D LinCMOSE MICROPOWER QUAD COMPARATORS
相关代理商/技术参数
参数描述
TLC32047IFN 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit
TLC32047IN 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit
TLC3204CN 制造商:Texas Instruments 功能描述:
TLC32071 制造商:TI 制造商全称:Texas Instruments 功能描述:HIGH-SPEED 8-BIT A/D AND D/A CONVERTER WITH 8-CHANNEL MULTIPLEXER
TLC320A545C 制造商:TI 制造商全称:Texas Instruments 功能描述:Single Channel Data/Fax Codec