전자부품 데이터시트 검색엔진 |
|
TDA7404D 데이터시트(PDF) 9 Page - STMicroelectronics |
|
TDA7404D 데이터시트(HTML) 9 Page - STMicroelectronics |
9 / 26 page 9/26 TDA7404D before the Mixing-block to eliminate all offsets generated by the Input-Stages and the In-Gain (Please notice that externally generated offsets, e.g. generated through the leakage current of the coupling capacitors, are not canceled). The auto-zeroing is started every time the DATA-BYTE 0 (Input Selector/Gain) is selected and takes a time of max. 0.3ms. To avoid audible clicks the Audioprocessor is muted before the loudness stage during this time. 1.2.1 AutoZero-Remain In some cases, for example if the uP is executing a refresh cycle of the IIC-Bus-programming, it is not useful to start a new AutoZero-action because no new source is selected and an undesired mute would appear at the outputs. For such applications the TDA7404D could be switched in the AutoZero-Remain-Mode (I2 bit of the subaddress-byte). If this bit is set to high, the DATABYTE 0 could be loaded without invoking the AutoZero and the old adjustment-value remains. 1.3 Mixing Stage The 4 step Mixing stage offers the possibility to mix the rear selector signal or the phone signal to any other source. Due to the fact that the mixing-stage is located behind the In-Gain-stage fine adjustments of the main source level could be done in this way. Figure 2. Signal-Flow of Mixing-Stage 1.4 Loudness There are four parameters programmable in the loudness stage: 1.4.1 Attenuation Figure 3 shows the attenuation as a function of frequency at fC = 400Hz. Diffin Loudness SE1 SE2 SE3 Mono 25 k Beep Input Selector In-Gain Mixing Mixing Level Input / Beep or Mono 0dB / -100dB -3.5dB / - 9.6dB - 6dB / - 6dB - 12dB / - 2.5dB |
유사한 부품 번호 - TDA7404D |
|
유사한 설명 - TDA7404D |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |