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)： 45/136頁
文件大?。?/td> 602K
代理商： PCF5083
1996 Oct 29
45
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
9.1.2
GMSK M
ODULATOR
I
NTERFACE
The PCF5083 serial output port SOX is used to transmit
the coded, interleaved and formatted bits to the GMSK
modulator in the PCF5072 baseband interface IC.
The SOX port consists of:
Serial Output Data signal (SOXD)
Serial Output Clock signal (SOXCLK), running at
270.83 kHz
Serial Output Enable signal (SOXEN), active LOW.
The GSM bit clock is directly used as the external shift
clock, therefore no external buffering of transmission data
is necessary.
The PCF5083 general purpose I/O pin IO4 is used to
enable or disable the transmitter during DTX. If IO4 = 0,
the transmitter is enabled. If IO4 = 1, the transmitter is
disabled. It is sampled by the TDMA timer at the beginning
of the transmit burst period.
9.1.2.1
Burst format
Tables 29 and 30 show the format of the normal and
access burst produced by the DSP. The period of the
8 leading bits allows the power amplifier to ramp-down and
ramp-up.
Table 29
Normal burst format
BITS
NUMBER
OF BITS
DESCRIPTION
0 to 7
8 to 155
8
dummy bits (set to logic 1)
BN0 to BN147 in accordance
with “GSM Rec. 05.02”
148
Table 30
Access burst format
9.1.3
A
UDIO AND
D
ATA
I
NTERFACE
The PCF5083 serial port Y is connected on-chip to the
IOM
-2 interface of the Timer Core. It is used for
connection to the following devices:
PCM codec in the PCF5072
Digital Audio Interface (DAI), used during type approval
Terminal adaptor for data services
External digital answering machine.
The physical transfer order on the IOM
-2 bus is 16-bit,
MSB first. The following signals are used:
Serial data input SIYD
Serial data output SOYD
Serial shift clock SIYCLK
Frame synchronization input SIYEN.
The DSP by default reads and writes the first 16-bit
timeslot of the IOM
-2 interface. This may be changed with
the appropriate software command to any 16-bit timeslot.
Input and output from/to the IOM
-2 bus is performed via
two FIFOs named audio input and audio output FIFO.
These FIFOs are implemented by firmware. Each FIFO is
able to store up to 297 16-bit samples.
BITS
NUMBER
OF BITS
DESCRIPTION
0 to 7
8 to 95
8
88
dummy bits (set to logic 1)
BN0 to BN87 in accordance
with “GSM Rec. 05.02”
dummy bits (set to logic 1)
96 to 155
60
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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
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