參數(shù)資料
型號(hào)： TLC32041CFN
廠商： Texas Instruments, Inc.
英文描述： ANALOG INTERFACE CIRCUITS
中文描述： 模擬接口電路
文件頁(yè)數(shù)： 14/33頁(yè)
文件大?。?/td> 453K
代理商： TLC32041CFN
TLC32040C, TLC32040I, TLC32041C, TLC32041I
ANALOG INTERFACE CIRCUITS
SLAS014E – SEPTEMBER 1987 – REVISED MAY 1995
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
improper operation due to conversion times being too close together
If the difference between two successive D/A conversion frame syncs is less than 1/19.2 kHz, the AIC operates
improperly. In this situation, the second D/A conversion frame sync occurs too quickly and there is not enough
time for the ongoing conversion to be completed. This situation can occur if the A and B registers are improperly
programmed or if the A + A’ register or A – A’ register result is too small. When incrementally adjusting the
conversion period via the A + A’ register options, the designer should be very careful not to violate this
requirement (see following diagram).
Frame Sync
FSX or FSR
t1
t2
Ongoing Conversion
t2 – t1
1/19.2 kHz
asynchronous operation — more than one receive frame sync occurring between two transmit
frame syncs
When incrementally adjusting the conversion period via the A + A’ or A – A’ register options, a specific protocol
is followed. The command to use the incremental conversion period adjust option is sent to the AIC during a
FSX frame sync. The ongoing conversion period is then adjusted. However, either receive conversion period
A or B may be adjusted. For both transmit and receive conversion periods, the incremental conversion period
adjustment is performed near the end of the conversion period. Therefore, if there is sufficient time between
t
1
and t
2
, the receive conversion period adjustment is performed during receive conversion period A. Otherwise,
the adjustment is performed during receive conversion period B. The adjustment command only adjusts one
transmit conversion period and one receive conversion period. To adjust another pair of transmit and receive
conversion periods, another command must be issued during a subsequent FSX frame (see figure below).
t1
t2
Transmit Conversion Period
Receive
Conversion
Period A
Receive
Conversion
Period B
FSX
FSR
相關(guān)PDF資料
PDF描述
TLC32041I ANALOG INTERFACE CIRCUITS
TLC32040M ANALOG INTERFACE CIRCUIT
TLC32040MFK ANALOG INTERFACE CIRCUIT
TLC32040MJ ANALOG INTERFACE CIRCUIT
TLC32044C VOICE-BAND ANALOG INTERFACE CIRCUITS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLC32041CN 制造商:TI 功能描述:32041
TLC32041I 制造商:TI 制造商全稱:Texas Instruments 功能描述:ANALOG INTERFACE CIRCUITS
TLC32041IN 制造商:TI 制造商全稱:Texas Instruments 功能描述:ANALOG INTERFACE CIRCUITS
TLC32042EFN 制造商:Rochester Electronics LLC 功能描述:
TLC32044 制造商:TI 制造商全稱:Texas Instruments 功能描述:VOICE-BAND ANALOG INTERFACE CIRCUITS
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