s1t8528 Samsung Semiconductor, Inc., s1t8528 Datasheet - Page 18

• Manufacturer Part Number: s1t8528
• Description: Enhanced-1 Chip Ct0 Rf Ic
• Manufacturer: Samsung Semiconductor, Inc.

S1T8528
•
•
— CLO register ( 6 bits ) : Receiver 1st local oscillator internal capacitor selection
Active state
( Communication mode )
Receiving mode
Stand-by mode
(Battery Save Mode#2)
Inactive state
(Battery Saving Mode#1)
Name
Default
Value 0
Function
18
Operating internal circuit blocks in each mode
Auxiliary Register(CLO_LBD Program)
[ Rx - 1st local oscillation internal cap. for U.S.A - 25CH & low battery detecting voltage ]
Bit
Mode ( state )
PMC
1
*****
-
Bit 15
CLO5
0
0:Normal
1:Internal
Cap. for
USA 25
Channel
=5.9pF
Bit 14
PLL regulator / MICOM I/F ( Data, CLK, EN ) / 2nd local oscillator / Receiver/ 1st
local oscillator/ RX PLL/ Carrier detector / FSK comparator / Low battery detector
/ TX PLL / Expander & speaker amp / Compressor /Splatter filter amp, Clock
Output
PLL regulator / MICOM I/F( Data, CLK, EN ) / 2nd local oscillator / Receiver/ 1st
local oscillator/ RX PLL/ Carrier detector / FSK comparator / Low battery
detector, Clock Output
PLL regulator, MICOM I/F ( Data, CLK, EN ), 2nd local oscillator, Clock Output
Interrupt
CLO4
0
0:Normal
1:Internal
Cap. for
USA 25
Channel
=
4.8pF
Bit 13
CLO3
0
0:Normal
1:Internal
Cap. for
USA 25
Channel
=
3.2pF
Bit 12
Operating circuit blocks
CLO2
0
0:Normal
1:Internal
Cap. for
USA 25
Channel
=1.6pF
Bit 11
ENHANCED-1 CHIP CT0 RF IC
CLO1
0
0:Normal
1:Internal
Cap. for
USA 25
Channel
=1.3p F
Bit 10
CLO0
0
0:Normal
1:Internal
Cap. for
USA 25
Channel
=
0.8pF
Bit 9