參數(shù)資料
型號： PCF5083
廠商： NXP Semiconductors N.V.
英文描述： STEEL COVER
中文描述： GSM信號處理IC
文件頁數(shù)： 85/136頁
文件大小： 602K
代理商： PCF5083
1996 Oct 29
85
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
SP_decoder_TCHFS_init
Initialization of SP_decoder_TCHFS.
SP_encoder_TCHFS
52
GSM full-rate speech encoder as defined in
“GSM Rec. 06.01, 06.10, 06.11, 06.12, 06.31 and 06.32” The following
tasks are performed.
Speech encoding algorithm.
Voice Activity Detection (VAD) algorithm in the event of discontinuous
transmission (DTX).
Integrated handsfree algorithm using a weighting balance and comfort
noise insertion.
The 160 words audio input data in SCRATCH_BUFF (see Table 36) are
processed. The encoded speech parameters are returned in
SCRATCH_BUFF.
The dtx_flag enables or disables DTX as defined below:
dtx_flag = 1 enables DTX.
dtx_flag = 0 disables DTX.
If test_mode = 2 (test of speech encoder) then the RESE bit in
SCRATCH_BUFF is checked. If a rising edge is detected, the internal state
variables are cleared.
If bypass flag = 1; it disables the speech encoder. In this case the
parameter bits D1 to D260 (see Table 36) are directly passed to the output.
If bypass flag = 2; the speech encoder is only bypassed, if the control flag
BM0 (see Table 36) is set to 1 and BM1 is set to 0, otherwise the speech
coder is executed. This mode is required for remote interrogation of an
external answering machine.
SP_encoder_TCHFS_init
53
dtx_flag
test_mode
bypass_flag
Initialization of SP_encoder_TCHFS.
TG_tone_gen
54
This procedures adds a tone consisting of up to 3 sine waves to the audio
signal located in SCRATCH_BUFF, whereby the 3 LSB’s remain
unchanged (see Section 9.1.4). For more information refer to
TG_tone_gen_init.
59
DESCRIPTION
ID
PARAMETERS
RETURN
VALUES
相關PDF資料
PDF描述
PCF84C12A 8-BIT MICROCONTROLLER
PCF84C12AP 8-BIT MICROCONTROLLER
PCF84C12AT 8-BIT MICROCONTROLLER
PCF84C21A Telecom microcontrollers
PCF84C41A Telecom microcontrollers
相關代理商/技術參數(shù)
參數(shù)描述
PCF5083H/001/F2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF5083H/5V2/F3 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF5083H/F2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF51AC128ACFUE 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
PCF51AC128ACLKE 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*