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)： 71/136頁
文件大小： 602K
代理商： PCF5083
1996 Oct 29
71
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
CM_encoder_TCHFS
Channel encoder and interleaver for traffic channel full-rate speech and
FACCH and DTX uplink control.
The dtx_flag determines whether discontinuous transmission (DTX) is
applied:
dtx_flag = 1; DTX is applied
dtx_flag = 0; DTX is not applied.
The taf determines whether the current traffic frame is aligned with the
SACCH multiframe structure as described in “GSM Rec. 05.08”
taf = 0; not aligned with SACCH multiframe structure
taf = 1; aligned with SACCH multiframe structure.
The facch_flag indications:
facch_flag = 0; indicates that no FACCH message need be encoded
facch_flag = 1; indicates that a FACCH message must be encoded.
The facch_msg[12] contains the 184 bits of the FACCH message. The bits
are stored in a packed format with 16-bits per word and LSB first order.
The return value txen is only useful if DTX is applied. It indicates whether
the TCH block will be transmitted over the air interface.
txen = 1; TCH block will be transmitted over the air interface
txen = 0; TCH block will not be transmitted over the air interface.
CM_encoder_TCHFS_init
14
dtx_flag
taf
facch_flag
facch_msg[12]
txen
Initialization of CM_encoder_TCHFS.
CP_audio_loop
15
Combination of:
MP_READ_AUDIO_IN_FIFO (SCRATCH_BUFF, 160,
1);
MP_WRITE_AUDIO_OUT_FIFO (SCRATCH_BUFF, 160).
CP_freq_estim
16
Combination of:
MP_READ_BBD_IN_FIFO (IQ_BUFF, 167);
FB_FREQ_ESTIM (threshold)
The fb_freq_estim processes 156 I and Q samples only. 167 samples are
read in order to minimize the number of different burst length
CP_freq_estim_offset (PCF5083-3)
81
threshold
fb_qual
fb_foi
Combination of:
MP_READ_BBD_IN_FIFO_INIT (i_offset, q_offset);
MP_READ_BBD_IN_INFO (IQ_BUFF, 167);
FB_FREQ_ESTIM (threshold).
37
threshold
i_offset
q_offset
fb_qual
fb_foi
DESCRIPTION
ID
PARAMETERS
RETURN
VALUES
相關(guān)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(guān)代理商/技術(shù)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(shí)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(fēng)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(shí)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(fēng)格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

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(jìn)入我的后臺，查看報(bào)價(jià)

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*