s1t8528 Samsung Semiconductor, Inc., s1t8528 Datasheet - Page 20

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

S1T8528
•
Phase detector / Lock Detector Output Waveforms
(CLO5)
20
Bit5
0
0
0
0
0
0
0
Example data for U.S.A 25_channel selection
1st Local Osc. Internal Capacitor Select
(CLO4)
Bit4
0
0
0
0
0
1
1
2LOI
TIF
(CLO3)
Bit3
0
0
0
0
0
1
0
(CLO2)
Bit2
0
0
0
1
0
0
1
12 Bits Reference
program divider.
program divider.
14 Bits TX.
(CLO1)
Bit1
0
0
1
0
0
1
1
(CLO0)
Bit0
0
1
1
0
1
0
0
Channels
1 ~ 25CH. 1 ~ 25CH.
16~25CH.
01~04CH.
05~10CH.
11~15CH.
Figure 6.
¡ À 2 5
¡ À 4
Base
-
-
-
fREF¡ À 4
fREF¡ À 2 5
fREF
(A)
(B)
(C)
Channels
16~25CH.
01~06CH.
07~15CH.
Hand
FR1
FR2
1.0V~2.0V
TYP 1.5V
~15.86pF
~15.86pF
~15.86pF
~15.86pF
~15.86pF
~15.86pF
~15.86pF
Varicap
Value
18.73
18.73
18.73
18.73
18.73
18.73
18.73
ENHANCED-1 CHIP CT0 RF IC
REF.Freq
TIF ¡ À N
External
(30pF)
27pF
27pF
47pF
27pF
27pF
27pF
47pF
47pF
PD_TX
C
PDT
LD
External
0.45uH
0.44uH
0.20uH
0.44uH
0.44uH
0.44uH
0.20uH
0.20uH
L
Internal
0.8
2.1
1.6
0.8
9.3
8.8
pF
C
-