전자부품 데이터시트 검색엔진
Selected language     Korean  ▼
부품명
         상세내용
Preview PDF Download HTML-1page HTML-10pages

TDA1386 데이터시트(Datasheet) 11 Page - NXP Semiconductors

부품명 TDA1386
상세내용  Noise shaping filter DAC
PDF  24 Pages
Scroll/Zoom Zoom In 100% Zoom Out
제조사  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo 

 11 page
background image
1998 Jan 06
11
Philips Semiconductors
Product specification
Noise shaping filter DAC
TDA1386T
There are two recommended application situations within
the microcontroller mode:
• The customer wants to use the microcontroller interface
without the volume setting facility. In this event the
operation is as follows:
– Mute ON; by sending the MUSB command
– Mute OFF; by sending the FS command
– Attenuation ON; by sending the ATSB command
– Attenuation OFF; by sending the FS command.
It is possible to switch from ‘Attenuation ON’ to
‘Mute ON’ but not vice-versa.
• Incorporating the volume control feature operates as
follows:
– Mute ON; by sending the MUSB command the
microcontroller has to store the previous volume
setting.
– Mute OFF; by sending succeeding INCR commands
until the previous volume is reached.
– Attenuation ON; by sending succeeding DECR
commands until a relative downstep of
−12 dB is
reached. The microcontroller has to store the
previous volume.
– Attenuation OFF; by sending the succeeding INCR
commands until the previous volume is reached.
– Volume UP; by sending successive INCR
commands.
– Volume DOWN; by sending successive DECR
commands.
De-emphasis
A digital de-emphasis is implemented in the TDA1386T.
By selecting the DEEM bit at register D4 (microcontroller
application mode) or activating the APP0 pin
(pseudo-static application mode), de-emphasis can be
applied by means of an IIR filter. De-emphasis is
synchronized to prevent operation in the middle of a word.
Double-speed mode
The double-speed mode is controlled by the DSMB bit at
register D6 (microcontroller application mode) or by
activating the APP1 pin (pseudo static application mode).
When the control bit is active LOW the device operates in
the double-speed mode.
Oversampling filter and noise shaper
The digital filter is a four times oversampling filter. It
consists of two sections which each increase the sample
rate by 2. The noise-shaper operates on 4fs and reduces
the in-band noise density.
DAC and operational amplifiers
In this noise shaping DAC a special data code and
bidirectional current sources are used in order to achieve
true low-noise performance. The special data code
guarantees that only small values of current flow to the
output during small signal passages while larger positive
or negative values are generated using the bidirectional
current sources. The noise shaping DAC uses the
continuous calibration conversion technique. The DAC
currents are repeatedly generated from one single
reference current.
The operational amplifiers and the internal conversion
resistors RCONV1 and RCONV2 convert the DAC current to
an output voltage available at VOL and VOR. Connecting
an external capacitor between FILTCL and VOL, FILTCR
and VOR respectively provides the required first-order
post filtering.




Html 페이지

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24 


데이터시트



관련 부품명

부품명상세내용Html View제조사
TDA1306TNoise shaping filter DAC 1 2 3 4 5 MoreNXP Semiconductors
LTC1164Low Power Low Noise Quad Universal Filter Building Block 1 2 3 4 5 MoreLinear Technology
MB1310Three Phase Input Noise Filter with Block Terminal 1 2 3 4 DENSEI-LAMBDA
MX133 Phase Noise filter for FA Servo System 1 2 3 4 DENSEI-LAMBDA
TDA1314TQuadruple filter DAC 1 2 3 4 5 MoreNXP Semiconductors
UDA1320ATSLow-cost stereo filter DAC 1 2 3 4 5 MoreNXP Semiconductors
LTC1064-3Low Noise High frequency 8th Order Linear Phase Lowpass Filter 1 2 3 4 5 MoreLinear Technology
PAN4820On-board type DC Noise Filter for Telecom 1 2 DENSEI-LAMBDA
SDA9254-22.6 MBit Dynamic Sequential Access Memory for Television Applications TV-SAM with On-chip Noise Reduction Filter 1 2 3 4 5 MoreSiemens Semiconductor Group
LTC1566-1Low Noise 2.3MHz Continuous Time Lowpass Filter 1 2 3 4 5 MoreLinear Technology

링크 URL

ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ]  

Alldatasheet는?   |   광고문의    |   운영자에게 연락하기   |   개인정보취급방침   |   즐겨찾기   |   링크교환   |   제조사별 검색
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl