參數(shù)資料
型號(hào)： S1M8657X01-E0T0
元件分類： 無繩電話/電話
英文描述： TELECOM, CELLULAR, BASEBAND CIRCUIT, PQFP48
封裝： 7 X 7 MM, LQFP-48
文件頁數(shù)： 19/34頁
文件大?。?/td> 281K
代理商： S1M8657X01-E0T0
S1M8657
TX IF/BBA WITH AGC
26
DESCRIPTION OF REGISTER
ADDRESS
NAME
TYPE
BITS
Description
00
RESET
W
-
This is used like a command and if this address is accessed, all
register values are restored to their original set value.
01
SPI_ID
R
[5:0]
This ID number must be used to use the registers as S1M8657
in this IC. SPI_ID = 2Ah
02
PLLN0 [7:0]
R/W
[7:4]
PLLAC[3:0]. Default = 1100.
Refers to the lower 4-bit in the 9-BIT A-Counter. Remember that
the total 9-BIT value refers to the A-1 value.
[3:0]
PLLBC[3:0]. Default = 0100.
Register that sets the 4-BIT B-Counter.
03
PLLN1 [7:0]
R/W
[7]
PSC_MODE, Default = 1. Sets the Prescaler Dual Mode.
1: P = 16 Mode, with divide ratio of 16 or 17.
0: P = 8 Mode, with divide ratio of 8 or 9.
[6:5]
Default = 00
Absolutely not used.
[4:0]
PLLAC[8:4]. Default = 00000.
Refers to the upper 5-bit in the 9-BIT A-Counter. Remember that
the total 9-BIT value refers to the A-1 value.
04
PLLR0 [7:0]
R/W
[7:0]
PLLRC[7:0]. Default = 00001111.
Refers to the lower 8-bit in the 10-BIT A-Counter. Remember
that the total 10-BIT value refers to the A-1 value.
05
PLLR1 [7:0]
R/W
[7:5]
LOCK_LEN. Default = 110.
Lock output set register sets the lock output by detemining the
time cut-line for level of PLL & VCO stabilization Phases must
match duringTCXO*2
(M+13) for lock.
[4]
PD_MODE. Default = 1
Decides the polarity of the phase comparator gain (+ or -1).
0: Negative VCO gain (-Kv)
1: Normal operation.
[3:2]
Default = 00, Absolutely not used.
[1:0]
PLLRC[9:8]. Default = 00.
Refers to the upper 2-bit in the 10-BIT R-Counter. Remember
that the total 10-BIT value refers to the R-1 value.
06
PLL_MODE
R/W
[7]
Default = 0. Absolutely not used.
[6]
LOCK_MODE. Default = 0.
Assigns the lock output form, the lock detector output.
1: Standard CMOS output
0: Requires an external pull up register because of the open
drain output.
[5]
Default = 0
Absolutely not used.
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