数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

ADPLP01 数据表(PDF) 3 Page - Analog Devices

部件名 ADPLP01
功能描述  GSM Baseband Processing Chipset
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADPLP01 数据表(HTML) 3 Page - Analog Devices

  ADPLP01 Datasheet HTML 1Page - Analog Devices ADPLP01 Datasheet HTML 2Page - Analog Devices ADPLP01 Datasheet HTML 3Page - Analog Devices ADPLP01 Datasheet HTML 4Page - Analog Devices ADPLP01 Datasheet HTML 5Page - Analog Devices ADPLP01 Datasheet HTML 6Page - Analog Devices ADPLP01 Datasheet HTML 7Page - Analog Devices ADPLP01 Datasheet HTML 8Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 3 / 8 page
background image
AD20msp410
–3–
REV. 0
decision confidence bits supplied by the equalizer. Once these
decoding functions are complete, digitized voice data is trans-
ferred to the ASP through a parallel port. Error control mecha-
nisms are used to ensure adequate bad frame indication.
Speech Decoding (ASP)
Encoded speech data is transferred at 20 ms intervals from the
PLP to the ASP in blocks of 260 bits plus the Bad Frame
Indicator (BFI). The speech decoder supports a Comfort Noise
Insertion (CNI) function that inserts a predefined silence
descriptor into the decoding process. The ASP also implements
control of talker side-tone and short term echo cancellation.
The resulting data, at 104 kb/s, is transferred to the BBC
through a dedicated serial path.
Voice Digital-to-Analog Conversion
The Voice DAC function of the BBC uses a sigma-delta con-
verter to convert and noise shape the signal. The 13-bit linear
values are converted to the analog domain and filtered to avoid
any images. The resulting differential signals can be controlled
in volume and drive directly a small earpiece as well as a
separate auxiliary output.
AUXILIARY SYSTEM FUNCTIONS
The ASP, the PLP and the BBC perform a number of auxiliary
functions which are essential to build a complete mobile radio.
A general radio section constitutes the three functions of
transmitter, receiver and synthesizer. Figure 2 shows how the
baseband chipset interfaces to a typical radio architecture. The
transmitter is fed with baseband analog I and Q signals from the
BBC and upconverted to 900 MHz for GSM applications and
1800 MHz for PCN applications.
A dedicated power amplifier increases the RF-signal to the
required level. The receiver amplifies the antenna signal, down-
converts it to an intermediate frequency (IF) and amplifies it
there again. After second conversion to baseband, the I and Q
components of the signal are fed into the BBC.
The BBC, ASP and PLP provide three auxiliary functions for
interfacing to the radio subsystem. These auxiliary functions
include AGC, AFC and Power Ramping.
Power Ramp Envelope (BBC)
To meet the spectral and time-domain specifications of the
transmitted output signal, the burst has to follow a specified
power envelope. The envelope for the power profile originates in
the PLP as a set of coefficients, down-loaded and stored in the
BBC. This envelope profile is sent to one of the auxiliary DACs
on the BBC with each burst. The analog output is fed into the
RF power amplifier, controlling the power profile and absolute
level of the transmitted data.
Automatic Gain Control (AGC)
The mobile radio has to cope with a wide range of input signal
levels. The major part of the overall gain is provided in the IF
amplifier. The incoming signal level is analyzed in the ASP and
the PLP and a digital gain control signal is sent to the BBC. A
10-bit auxiliary DAC generates the appropriate analog control
signal for the IF amplifier. Additionally gain control can be
implemented by using two output flags of the ASP.
FLAGS
13 MHz VCTCXO
13 MHz VCTCXO
SYNTHESIZER
CONTROL SIGNALS
AGC
AFC
RAMP CONTROL
AGC
PAERROR
LOCK
10-BIT DAC
I
Q
I
Q
PLP
ASP
BASEBAND/AUXILIARY SECTION OF AD7015
DIGITAL FIR FILTER
RAMPING RAM
GSMSK
MODULATOR
BURST
STORE
PA
IF
TX DAC
TX DAC
10-BIT DAC
10-BIT DAC
8-BIT DAC
DIGITAL FIR FILTER
DIGITAL FIR FILTER
DIGITAL FIR FILTER
DIGITAL FIR FILTER
RX DAC
RX DAC
BASEBAND
SERIAL
INTERFACE
AUXILIARY
SERIAL
INTERFACE
Figure 2. Control of RF Section


类似零件编号 - ADPLP01

制造商部件名数据表功能描述
logo
Analog Devices
ADPL13602 AD-ADPL13602 Datasheet
2Mb / 28P
   3.5V to 36V, 2.4A, High-Efficiency, Synchronous Step-Down DC-DC Converter
Rev 0; 12/23
ADPL13602BATE++ AD-ADPL13602BATE+ Datasheet
2Mb / 28P
   3.5V to 36V, 2.4A, High-Efficiency, Synchronous Step-Down DC-DC Converter
Rev 0; 12/23
ADPL13602BATE+T AD-ADPL13602BATE+T Datasheet
2Mb / 28P
   3.5V to 36V, 2.4A, High-Efficiency, Synchronous Step-Down DC-DC Converter
Rev 0; 12/23
ADPL54203 AD-ADPL54203 Datasheet
925Kb / 34P
   40VIN Micropower No-Opto Isolated Flyback Converter with 60V/3.4A Switch
Rev. 0
ADPL54203ES8EPBF AD-ADPL54203ES8EPBF Datasheet
925Kb / 34P
   40VIN Micropower No-Opto Isolated Flyback Converter with 60V/3.4A Switch
Rev. 0
More results

类似说明 - ADPLP01

制造商部件名数据表功能描述
logo
Analog Devices
AD20MSP415 AD-AD20MSP415 Datasheet
66Kb / 8P
   GSM/DCS1800/PCS1900 Baseband Processing Chipset
REV. 0
logo
Texas Instruments
DBB03A TI-DBB03A Datasheet
114Kb / 9P
[Old version datasheet]   Baseband ASIC for Dolphin Chipset
DBB03 TI-DBB03 Datasheet
98Kb / 8P
[Old version datasheet]   Baseband ASIC for Dolphin Chipset
logo
NXP Semiconductors
PCF5083 PHILIPS-PCF5083 Datasheet
602Kb / 136P
   GSM signal processing IC
1996 Oct 29
logo
Broadcom Corporation.
ML2011 BOARDCOM-ML2011 Datasheet
130Kb / 1P
   GSM SINGLE-CHIP BASEBAND PROCESSOR
logo
Analog Devices
AD6526 AD-AD6526_15 Datasheet
92Kb / 1P
   GSM/GPRS Digital Baseband Processor
Rev. PrA
AD6526 AD-AD6526 Datasheet
86Kb / 1P
   GSM/GPRS Digital Baseband Processor
Rev. PrA
logo
NXP Semiconductors
PCF50732 PHILIPS-PCF50732 Datasheet
322Kb / 64P
   Baseband and audio interface for GSM
1999 May 03
logo
Broadcom Corporation.
BCM2121 BOARDCOM-BCM2121 Datasheet
131Kb / 2P
   GPRS/GSM SINGLE CHIP BASEBAND PROCESSOR
logo
Analog Devices
AD7001 AD-AD7001 Datasheet
619Kb / 16P
   LC2MOS GSM Baseband I/O Port
REV. A
More results


Html Pages

1 2 3 4 5 6 7 8


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : 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  |   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