參數(shù)資料
型號: CE5038
廠商: Intel Corp.
英文描述: DVB-S2 Advanced Modulation Satellite Tuner
中文描述: DVB - S2的先進調(diào)制衛(wèi)星調(diào)諧器
文件頁數(shù): 27/41頁
文件大?。?/td> 463K
代理商: CE5038
CE5038
Data Sheet
26
Intel Corporation
3.4.11 Charge Pump Control and Charge Pump Current (CC, C1 & C0 Bits)
Register bit
CC
is programmed by setting bit-2 of register byte-8 and bits
C1
and
C0
by setting bits-6 & 5 of register
byte-5. These bits determine the charge pump current that is used on the output of the frequency synthesizer phase
detector.
3.4.12 Reference Division Ratios (R4:0 Bits)
Register bits
R4:0
control the reference divider ratios as shown in Table 14. They are programmed through bit-4 to
bit-0 respectively, in byte-5.
Table 14 - Division Ratios Set with Bits R4 - R0
Table 13 - Charge Pump Currents
CC
C1
C0
Typical current in μA
VCO sub-bands 0 - 7
VCO sub-bands 8 - 15
0
0
0
±365
±210
(reset state)
Current limits
0
0
1
±625
±365
Min.
Typ.
Max.
0
1
0
±1065
±625
±160
±210
±290
0
1
1
Invalid Setting
±280
±365
±510
1
0
0
±210
±470
±625
±860
1
0
1
±365
±820
±1065
±1470
1
1
0
±625
1
1
1
±1065
R4
0
0
1
1
R3
0
1
0
1
R2
R1
R0
Division Ratios
0
0
0
2
Illegal states
0
0
1
4
5
6
7
0
1
0
8
10
12
14
0
1
1
16
20
24
28
1
0
0
32
40
48
56
1
0
1
64
80
96
112
1
1
0
128
160
192
224
1
1
1
256
320
384
448
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