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): 93/136頁
文件大?。?/td> 602K
代理商: PCF5083
1996 Oct 29
93
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
Notes
1.
2.
3.
4.
CM_encoder_CCH is only called, if the current multiframe contains the 1st SACCH sub-block.
Dummy encryption to increment TDMA frame counters (skip Idle frame).
CM_decoder_CCH is only called, if the current multiframe contains the 4th SACCH sub-block.
If the BCCh identification of the neighbouring cells is not required in a certain idle frame, then up to 3 level
measurements can be performed in that frame.
Dummy encryption to increment TDMA frame counter (skip idle frame).
Monitoring of a frequency correction burst from a neighbouring cell.
Decoding of a synchronization burst from a neighbouring cell.
5.
6.
7.
23
start of
FB monitoring
CP_rx_normal_burst (TCH_CMI_BUFF4, tsc, agc_gain)
FB_search_FCB_INT (n_int, threshold)
FB_search_FCB( )
CP_rx_speech (dtx_flag, taf, test_mode)
CP_rx_normal_burst (TCH_CMI_BUFF4, tsc, agc_gain)
FB_search_FCB( )
CP_rx_speech (dtx_flag, taf, test_mode)
CP_rx_normal_burst (TCH_CMI_BUFF4, tsc, agc_gain)
CP_rx_speech (dtx_flag, taf, test_mode)
CP_rx_SCH( )
CP_rx_normal_burst (TCH_CMI_BUFF4, tsc, agc_gain)
CP_rxlev3 (agc_gain1, agc_gain2, agc_gain3); note 4
CP_rx_speech (dtx_flag, taf, test_mode)
CI_decrypt (SCRATCH_BUFF,1); note 5
22
149
156
80
23
continue
FB monitoring
23
decode SCh
17
149
156
80
17
149
156
80
23
level
measurement
24
20
149
156
80
0
149
156
1404
(6)
or 167
(7)
80 or 0
25
CP_rx_normal_burst (TCH_CMI_BUFF1, tsc, agc_gain)
CP_power_measure (agc_gain1)
17
80 or 0
80 or 0
FN MOD 26
PROCEDURES
N
W
RX
TX
MX
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