STW82103B Datasheet, PDF (52/67 Pages) STMicroelectronics – RF down converter with embedded integer-N synthesizer

SPI digital interface
STW82103B
ST3
SPI register 3
23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
WW
Address:
Type:
Reset:
W
W
W
0x10
W
0x00
[23] ALC_PD: Test purpose only; must be set to ‘0’ (ALC ON)
[22] PKD_EN: for test purpose only; must be set to ‘0’
[21:17] PD[4:0]:
00000: (0 decimal) Power down mode
00001: (1 decimal) Standard Mode VCOA (VCOA and RX chain ON)
00010: (2 decimal) Standard Mode VCOB (VCOB and RX chain ON)
00011: (3 decimal). Diversity Slave Mode (ExtVCO/LO input buffer and RX Chain ON;
internal synthesizer OFF)
00100: (4 decimal) Diversity Master Mode VCOA (VCOA, RX Chain and LO output
buffer ON)
00101: (5 decimal) Diversity Master Mode VCOB (VCOB, RX Chain and LO output
buffer ON)
00110: (6 decimal) External LO Standard Mode (RX Chain ON; PLL and ExtVCO/LO
input buffer ON)
00111: (7 decimal) External LO Diversity Master Mode (RX Chain ON; PLL, ExtVCO/LO
input buffer and LO output buffer ON)
[16:5] B[11:0]: B counter bits
[4:0] A[4:0]: A Counter Bits
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Doc ID 018517 Rev 2